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Lighthouse Desktop

· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
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Detailed Report

Audit breakdown by category with detailed findings.

7

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
redalyc.org/img/pop-up-firmas.png0.0 ms627.6 KiB
redalyc.org/img/nuevoHeaderHome/banner_arcadia_eng.png0.0 ms454.9 KiB
redalyc.org/img/nuevoHeaderHome/banner_arcadia_esp.png0.0 ms453.9 KiB
redalyc.org/img/Arcadia%20banner%20home%20redalyc%20esp.png0.0 ms362.8 KiB
redalyc.org/img/nuevoHeaderHome/banner_OAWeek_2024_esp.png0.0 ms338.9 KiB
redalyc.org/img/nuevoHeaderHome/banner_OAWeek_2024_eng.png0.0 ms337.4 KiB
redalyc.org/js/core.js0.0 ms211.5 KiB
redalyc.org/img/nuevoHeaderHome/banner_arcadia_eng_m.png0.0 ms180.6 KiB
redalyc.org/img/nuevoHeaderHome/banner_arcadia_esp_m.png0.0 ms179.3 KiB
redalyc.org/img/nuevoHeaderHome/banner_OAWeek_2024_esp_m.png0.0 ms127.5 KiB
redalyc.org/img/nuevoHeaderHome/banner_OAWeek_2024_eng_m.png0.0 ms126.7 KiB
redalyc.org/js/worldLow.js0.0 ms97.0 KiB
redalyc.org/img/nuevoHeaderHome/banner_manifiesto_eng.png0.0 ms96.7 KiB
redalyc.org/img/img-consejo%20-asesor.png0.0 ms96.4 KiB
redalyc.org/img/fondo-oscuro.jpg0.0 ms94.1 KiB
redalyc.org/img/nuevoHeaderHome/banner_manifiesto_esp.png0.0 ms87.7 KiB
redalyc.org/img/nuevoHeaderHome/banner_crowdfunding_esp.png0.0 ms82.8 KiB
redalyc.org/img/imgRedalyc_network_covid19.jpg0.0 ms80.9 KiB
redalyc.org/img/nuevoHeaderHome/banner_crowdfunding_eng.png0.0 ms78.8 KiB
redalyc.org/js/angular.js0.0 ms66.3 KiB
redalyc.org/js/charts.js0.0 ms60.3 KiB
redalyc.org/img/nuevoHeaderHome/banner_crowdfunding_esp_m.png0.0 ms56.7 KiB
redalyc.org/js/worldLowAutorHome.js0.0 ms55.4 KiB
redalyc.org/img/nuevoHeaderHome/banner_crowdfunding_eng_m.png0.0 ms54.9 KiB
redalyc.org/img/Banner-AcuerdoRedClara-LAReferencia-Redalyc-3-.png0.0 ms53.3 KiB
redalyc.org/img/nuevoHeaderHome/banner_manifiesto_eng_m.png0.0 ms52.0 KiB
redalyc.org/img/nuevoHeaderHome/banner_manifiesto_esp_m.png0.0 ms48.4 KiB
redalyc.org/js/ammap.js0.0 ms47.9 KiB
redalyc.org/img/fondo-imagen-covid.jpg0.0 ms46.0 KiB
redalyc.org/js/maps.js0.0 ms39.7 KiB
redalyc.org/js/jquery.min.js0.0 ms32.6 KiB
redalyc.org/img/loading-2.gif0.0 ms27.3 KiB
redalyc.org/img/modelo-refuerzo-diamante-esp.png0.0 ms25.7 KiB
redalyc.org/img/img-pandemias.png0.0 ms25.3 KiB
redalyc.org/img/img-ancestral.png0.0 ms25.2 KiB
redalyc.org/img/modelo-refuerzo-diamante-eng.png0.0 ms23.3 KiB
redalyc.org/img/hambreCero_img.png0.0 ms22.7 KiB
redalyc.org/img/modelo-Calidad-en.png0.0 ms22.2 KiB
redalyc.org/img/climate_icon.png0.0 ms20.0 KiB
redalyc.org/css/home.css0.0 ms19.4 KiB
redalyc.org/img/reduccionDesigualdades_img.png0.0 ms19.3 KiB
redalyc.org/img/certamen.png0.0 ms18.9 KiB
redalyc.org/img/indian-statistical-institute.png0.0 ms18.7 KiB
redalyc.org/img/educacionCalidad_img.png0.0 ms18.1 KiB
redalyc.org/img/clacso-relat-last.png0.0 ms15.5 KiB
redalyc.org/img/poverty_icon.png0.0 ms14.7 KiB
redalyc.org/img/unesco-last.png0.0 ms14.3 KiB
ssl.google-analytics.com/ga.js7200.0 s17.4 KiB
redalyc.org/img/13-septiembre%202009%20World_Summit_Award_WSA.png0.0 ms12.4 KiB
redalyc.org/img/shuttleworth-foundation.png0.0 ms12.1 KiB
redalyc.org/img/5-octubre%202012%20XII%20SEMINARIO%20RII%20brasil%20copia.png0.0 ms11.9 KiB
redalyc.org/img/Icono-evaluacion-2020G.gif0.0 ms11.6 KiB
redalyc.org/img/Icono-evaluacion-2020G-en.png0.0 ms11.5 KiB
i.ytimg.com/vi_webp/3Svx4nas2T8/sddefault.webp7200.0 s15.2 KiB
redalyc.org/img/img-genero.png0.0 ms10.7 KiB
/img/4-diciembre 2014 Premio Nacional del Libro Venezuela...0.0 ms10.5 KiB
/img/12-septiembre 2009 Informe Mundial de las Ciencias S...0.0 ms10.1 KiB
redalyc.org/img/doaj-last.png0.0 ms10.0 KiB
redalyc.org/img/10-Abril%202011%20Universidad%20de%20los%20Andes.png0.0 ms9.2 KiB
redalyc.org/img/11-julio%202011%20top%20portales%20webometrics.png0.0 ms8.8 KiB
redalyc.org/img/scoss-last.png0.0 ms8.3 KiB
redalyc.org/img/ioi-last.png0.0 ms8.3 KiB
redalyc.org/img/9-octubre%202011%20Universidad%20Complutense%20de%20Madrid.png0.0 ms8.3 KiB
/img/6-julio 2012 Consejo Superior de Investigaciones Cie...0.0 ms8.0 KiB
/img/7-abril 2012 Congreso Internacional de Informacion I...0.0 ms8.0 KiB
redalyc.org/img/AMERBAC_logo.png0.0 ms7.3 KiB
redalyc.org/img/8-diciembre%202011%20Premio%20alvaro%20Perez-Ugena.png0.0 ms6.2 KiB
redalyc.org/img/administracion%202021.png0.0 ms5.8 KiB
redalyc.org/js/homeJS.js0.0 ms5.6 KiB
redalyc.org/img/modelo-Calidad.gif0.0 ms5.5 KiB
redalyc.org/img/uvc-recon-last.png0.0 ms5.4 KiB
redalyc.org/img/modelo-noAPC.png0.0 ms5.1 KiB
redalyc.org/img/nuevoHeaderHome/logo_redalyc.png0.0 ms5.0 KiB
redalyc.org/img/UOR_logo.png0.0 ms5.0 KiB
redalyc.org/img/sv-redalyc.png0.0 ms4.7 KiB
redalyc.org/img/fiap-recon-last.png0.0 ms4.1 KiB
redalyc.org/img/clacso-recon-last.png0.0 ms3.9 KiB
redalyc.org/img/modelo-XML.png0.0 ms3.9 KiB
redalyc.org/img/modelo-oa.png0.0 ms3.8 KiB
redalyc.org/js/homeAngularJS.js0.0 ms3.7 KiB
redalyc.org/img/revistas_consolidadas.png0.0 ms3.0 KiB
redalyc.org/js/dataloader.min.js0.0 ms2.8 KiB
redalyc.org/img/tarjeta-produccion.png0.0 ms2.8 KiB
redalyc.org/img/tajeta-linked-open-data.png0.0 ms2.6 KiB
redalyc.org/img/tarjeta-profesionalizacion.png0.0 ms2.5 KiB
redalyc.org/img/tajeta-autores.png0.0 ms2.4 KiB
redalyc.org/img/tarjeta-indice.png0.0 ms2.3 KiB
redalyc.org/img/tarjeta-indicadores.png0.0 ms2.1 KiB
redalyc.org/img/ic-prduccion%20cientifica.png0.0 ms2.0 KiB
redalyc.org/img/ic-linked-open%20data.png0.0 ms1.9 KiB
redalyc.org/img/ic-profesionalizacion.png0.0 ms1.8 KiB
redalyc.org/img/ic-autores-redlayc-orcid.png0.0 ms1.7 KiB
redalyc.org/img/t1-metodologia.png0.0 ms1.6 KiB
redalyc.org/img/t4-pais.png0.0 ms1.5 KiB
redalyc.org/js/mapan.js0.0 ms1.5 KiB
redalyc.org/img/ic-indicadores.png0.0 ms1.5 KiB
redalyc.org/css/slider.css0.0 ms1.4 KiB
redalyc.org/js/slider.js0.0 ms1.4 KiB
redalyc.org/img/4ic-calidad-deslect.png0.0 ms1.2 KiB
redalyc.org/js/popUp.js0.0 ms1.1 KiB
redalyc.org/img/t2-pais-deslect.png0.0 ms1.1 KiB
redalyc.org/img/2ic-marcacion-deslect.png0.0 ms1.0 KiB
redalyc.org/img/t3-intitucion.png0.0 ms1.0 KiB
redalyc.org/img/t2-revista.png0.0 ms986 B
redalyc.org/css/popUp.css0.0 ms982 B
redalyc.org/img/t3-calidad-deslect.png0.0 ms958 B
redalyc.org/js/animated.js0.0 ms908 B
redalyc.org/img/nuevoHeaderHome/ic_busqueda.png0.0 ms900 B
redalyc.org/css/ammap.css0.0 ms892 B
redalyc.org/img/3ic-capacitaciones-deslect.png0.0 ms876 B
redalyc.org/img/t2-inst-deslect.png0.0 ms873 B
redalyc.org/img/t3-xml-deslect.png0.0 ms870 B
redalyc.org/img/3ic-workflow-deslect.png0.0 ms859 B
redalyc.org/img/4ic-practicas-deslect.png0.0 ms851 B
redalyc.org/img/t5-busqa-deslect.png0.0 ms830 B
redalyc.org/img/3ic-xml-deslect.png0.0 ms827 B
redalyc.org/img/4ic-estandares-deslect.png0.0 ms823 B
redalyc.org/img/t3-capacitaciones-deslect.png0.0 ms810 B
redalyc.org/img/t1-busqueda-deslect.png0.0 ms808 B
redalyc.org/img/nuevoHeaderHome/ic_x.png0.0 ms804 B
redalyc.org/img/nuevoHeaderHome/ic_in.png0.0 ms786 B
redalyc.org/img/1ic-metodologia-deslect.png0.0 ms766 B
redalyc.org/img/2ic-marcalyc-deslect.png0.0 ms762 B
redalyc.org/img/t1-criterios-deslect.png0.0 ms759 B
redalyc.org/img/t4-instpais-deslect.png0.0 ms755 B
redalyc.org/img/t4-areas-deslect.png0.0 ms715 B
redalyc.org/img/t4-revistas-deslect.png0.0 ms678 B
redalyc.org/img/3ic-calidad-deslect.png0.0 ms678 B
redalyc.org/img/3ic-calendario-deslect.png0.0 ms662 B
redalyc.org/img/1ic-blog-deslect.png0.0 ms660 B
redalyc.org/img/buscador-institucionmdpi.png0.0 ms655 B
redalyc.org/img/2ic-tutoriales-deslect.png0.0 ms639 B
redalyc.org/img/1ic-html-deslect.png0.0 ms636 B
redalyc.org/img/t1-articulos-deslect.png0.0 ms598 B
redalyc.org/img/nuevoHeaderHome/icon_fb.png0.0 ms593 B
redalyc.org/img/menu.png0.0 ms583 B
redalyc.org/img/nuevoHeaderHome/ic_abajo.png0.0 ms575 B
redalyc.org/img/4ic-criterios-deslect.png0.0 ms561 B
static.doubleclick.net/instream/ad_status.js900.0 s495 B

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.001567] map[node:map[boundingRect:map[bottom:396 height:35 left:524 right:1014 top:361 width:490] lhId:page-3-DIV nodeLabel: path:1,HTML,1,BODY,7,MAIN,1,DIV,0,DIV,3,DIV,1,DIV,1,DIV selector:div#headerHomeRedalyc > div#buscador > div#buscadorN > div.container-input snippet:<div class="container-input"> type:node] score:0.001567 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:245 height:16 left:1241 right:1268 top:229 width:27] lhId:page-6-IMG nodeLabel:div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.twitter path:1,HTML,1,BODY,7,MAIN,1,DIV,0,DIV,2,DIV,2,A,0,IMG selector:div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.twitter snippet:<img class="twitter" src="img/nuevoHeaderHome/ic_in.png"> type:node]]] type:subitems]]]
headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.990443] map[node:map[boundingRect:map[bottom:678 height:147 left:0 right:1350 top:531 width:1350] lhId:page-9-DIV nodeLabel:div#container-scoss-arca > div.banners-scoss-arca > div#sliderScoss-arca > div.slItems path:1,HTML,1,BODY,7,MAIN,1,DIV,0,DIV,5,DIV,0,DIV,0,DIV,0,DIV,0,DIV selector:div#container-scoss-arca > div.banners-scoss-arca > div#sliderScoss-arca > div.slItems snippet:<div class="slItems slitems-scoss-arca"> type:node] score:0.868657] map[node:map[boundingRect:map[bottom:773 height:95 left:0 right:1350 top:678 width:1350] lhId:page-13-DIV nodeLabel:ÍNDICE DE REVISTAS CERTIFICADAS REDALYC Por Idioma Por País Por Disciplina Por … path:1,HTML,1,BODY,7,MAIN,1,DIV,1,DIV selector:body.ng-scope > main > div#home-principal > div#container-header-nav-sect snippet:<div id="container-header-nav-sect"> type:node] score:0.10927] map[node:map[boundingRect:map[bottom:741 height:17 left:360 right:552 top:724 width:192] lhId:page-8-LABEL nodeLabel: No mostrar de nuevo path:1,HTML,1,BODY,7,MAIN,16,DIV,2,LABEL selector:body.ng-scope > main > div#popup > label snippet:<label> type:node] score:0.006773 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:724 height:525 left:360 right:990 top:199 width:630] lhId:page-0-IMG nodeLabel:main > div#popup > a > img path:1,HTML,1,BODY,7,MAIN,16,DIV,1,A,0,IMG selector:main > div#popup > a > img snippet:<img src="/img/pop-up-firmas.png" alt=""> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:396 height:35 left:524 right:1014 top:361 width:490] lhId:page-3-DIV nodeLabel: path:1,HTML,1,BODY,7,MAIN,1,DIV,0,DIV,3,DIV,1,DIV,1,DIV selector:div#headerHomeRedalyc > div#buscador > div#buscadorN > div.container-input snippet:<div class="container-input"> type:node] score:0.005743]]

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLEst Savings
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff245 ms
use.fontawesome.com/releases/v5.2.0/webfonts/fa-solid-900.woff225 ms

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:208.357 source:map[column:328124 line:1 type:source-location url:https://redalyc.org/js/core.js urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:4.229 source:map[column:272021 line:0 type:source-location url:https://redalyc.org/js/core.js urlProvider:network]] map[reflowTime:7.101 source:map[column:270901 line:0 type:source-location url:https://redalyc.org/js/core.js urlProvider:network]] map[reflowTime:15.943 source:map[column:695101 line:0 type:source-location url:https://redalyc.org/js/core.js urlProvider:network]] map[reflowTime:2.436 source:map[column:272285 line:0 type:source-location url:https://redalyc.org/js/core.js urlProvider:network]] map[reflowTime:0.596 source:map[column:272475 line:0 type:source-location url:https://redalyc.org/js/core.js urlProvider:network]] map[reflowTime:208.357 source:map[column:648777 line:0 type:source-location url:https://redalyc.org/js/core.js urlProvider:network]] map[reflowTime:14.503 source:map[column:43730 line:0 type:source-location url:https://redalyc.org/js/core.js urlProvider:network]]]

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
main > div#popup > a > img main > div#popup > a > img
redalyc.org/img/pop-up-firmas.png627.2 KiB573.4 KiB
div.background-manifiesto > ng-container.ng-scope > a > img.imges div.background-manifiesto > ng-container.ng-scope > a > img.imges
redalyc.org/img/nuevoHeaderHome/banner_OAWeek_2024_esp.png338.6 KiB326.7 KiB
div#footer-left-pandemics > div#shadow-pandemics > a > img div#footer-left-pandemics > div#shadow-pandemics > a > img
redalyc.org/img/imgRedalyc_network_covid19.jpg80.6 KiB67.5 KiB

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:695.132 label:Time to first byte subpart:timeToFirstByte] map[duration:744.688 label:Resource load delay subpart:resourceLoadDelay] map[duration:4182.447 label:Resource load duration subpart:resourceLoadDuration] map[duration:74.254 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-IMG
nodeLabel: main > div#popup > a > img
path: 1,HTML,1,BODY,7,MAIN,16,DIV,1,A,0,IMG
selector: main > div#popup > a > img
snippet: <img src="/img/pop-up-firmas.png" alt="">

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG
nodeLabel: main > div#popup > a > img
path: 1,HTML,1,BODY,7,MAIN,16,DIV,1,A,0,IMG
selector: main > div#popup > a > img
snippet: <img src="/img/pop-up-firmas.png" alt="">

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLProtocol
redalyc.org/http/1.1
redalyc.org/css/popUp.csshttp/1.1
redalyc.org/js/popUp.jshttp/1.1
redalyc.org/css/home.csshttp/1.1
redalyc.org/css/slider.csshttp/1.1
redalyc.org/css/ammap.csshttp/1.1
redalyc.org/js/angular.jshttp/1.1
redalyc.org/js/homeAngularJS.jshttp/1.1
redalyc.org/js/jquery.min.jshttp/1.1
redalyc.org/js/homeJS.jshttp/1.1
redalyc.org/js/slider.jshttp/1.1
redalyc.org/js/core.jshttp/1.1
redalyc.org/js/maps.jshttp/1.1
redalyc.org/js/worldLow.jshttp/1.1
redalyc.org/js/animated.jshttp/1.1
redalyc.org/js/charts.jshttp/1.1
redalyc.org/js/mapan.jshttp/1.1
redalyc.org/js/ammap.jshttp/1.1
redalyc.org/js/dataloader.min.jshttp/1.1
redalyc.org/js/worldLowAutorHome.jshttp/1.1
redalyc.org/img/loading-2.gifhttp/1.1
redalyc.org/img/nuevoHeaderHome/logo_redalyc.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/ic_abajo.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/ic_in.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/ic_x.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/icon_fb.pnghttp/1.1
redalyc.org/img/menu.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/ic_busqueda.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/banner_OAWeek_2024_esp.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/banner_OAWeek_2024_eng.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/banner_OAWeek_2024_esp_m.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/banner_OAWeek_2024_eng_m.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/banner_manifiesto_esp.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/banner_manifiesto_eng.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/banner_manifiesto_esp_m.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/banner_manifiesto_eng_m.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/banner_crowdfunding_esp.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/banner_crowdfunding_eng.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/banner_crowdfunding_esp_m.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/banner_crowdfunding_eng_m.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/banner_arcadia_esp.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/banner_arcadia_eng.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/banner_arcadia_esp_m.pnghttp/1.1
redalyc.org/img/nuevoHeaderHome/banner_arcadia_eng_m.pnghttp/1.1
redalyc.org/img/revistas_consolidadas.pnghttp/1.1
redalyc.org/img/buscador-institucionmdpi.pnghttp/1.1
redalyc.org/img/imgRedalyc_network_covid19.jpghttp/1.1
redalyc.org/img/sv-redalyc.pnghttp/1.1
redalyc.org/img/tarjeta-indice.pnghttp/1.1
redalyc.org/img/t1-criterios-deslect.pnghttp/1.1
redalyc.org/img/t1-busqueda-deslect.pnghttp/1.1
redalyc.org/img/t1-articulos-deslect.pnghttp/1.1
redalyc.org/img/tarjeta-produccion.pnghttp/1.1
redalyc.org/img/t2-inst-deslect.pnghttp/1.1
redalyc.org/img/t2-pais-deslect.pnghttp/1.1
redalyc.org/img/tarjeta-profesionalizacion.pnghttp/1.1
redalyc.org/img/t3-calidad-deslect.pnghttp/1.1
redalyc.org/img/t3-xml-deslect.pnghttp/1.1
redalyc.org/img/t3-capacitaciones-deslect.pnghttp/1.1
redalyc.org/img/tarjeta-indicadores.pnghttp/1.1
redalyc.org/img/t4-revistas-deslect.pnghttp/1.1
redalyc.org/img/t4-areas-deslect.pnghttp/1.1
redalyc.org/img/t4-instpais-deslect.pnghttp/1.1
redalyc.org/img/tajeta-autores.pnghttp/1.1
redalyc.org/img/t5-busqa-deslect.pnghttp/1.1
redalyc.org/img/tajeta-linked-open-data.pnghttp/1.1
redalyc.org/img/ic-prduccion%20cientifica.pnghttp/1.1
redalyc.org/img/ic-profesionalizacion.pnghttp/1.1
redalyc.org/img/4ic-calidad-deslect.pnghttp/1.1
redalyc.org/img/4ic-criterios-deslect.pnghttp/1.1
redalyc.org/img/4ic-estandares-deslect.pnghttp/1.1
redalyc.org/img/4ic-practicas-deslect.pnghttp/1.1
redalyc.org/img/2ic-marcacion-deslect.pnghttp/1.1
redalyc.org/img/2ic-marcalyc-deslect.pnghttp/1.1
redalyc.org/img/2ic-tutoriales-deslect.pnghttp/1.1
redalyc.org/img/1ic-metodologia-deslect.pnghttp/1.1
redalyc.org/img/1ic-html-deslect.pnghttp/1.1
redalyc.org/img/1ic-blog-deslect.pnghttp/1.1
redalyc.org/img/3ic-capacitaciones-deslect.pnghttp/1.1
redalyc.org/img/3ic-calidad-deslect.pnghttp/1.1
redalyc.org/img/3ic-xml-deslect.pnghttp/1.1
redalyc.org/img/3ic-workflow-deslect.pnghttp/1.1
redalyc.org/img/3ic-calendario-deslect.pnghttp/1.1
redalyc.org/img/ic-indicadores.pnghttp/1.1
redalyc.org/img/t1-metodologia.pnghttp/1.1
redalyc.org/img/t2-revista.pnghttp/1.1
redalyc.org/img/t3-intitucion.pnghttp/1.1
redalyc.org/img/t4-pais.pnghttp/1.1
redalyc.org/img/ic-autores-redlayc-orcid.pnghttp/1.1
redalyc.org/img/ic-linked-open%20data.pnghttp/1.1
redalyc.org/img/img-ancestral.pnghttp/1.1
redalyc.org/img/img-pandemias.pnghttp/1.1
redalyc.org/img/img-genero.pnghttp/1.1
redalyc.org/img/climate_icon.pnghttp/1.1
redalyc.org/img/poverty_icon.pnghttp/1.1
redalyc.org/img/educacionCalidad_img.pnghttp/1.1
redalyc.org/img/hambreCero_img.pnghttp/1.1
redalyc.org/img/reduccionDesigualdades_img.pnghttp/1.1
redalyc.org/img/modelo-refuerzo-diamante-esp.pnghttp/1.1
redalyc.org/img/modelo-refuerzo-diamante-eng.pnghttp/1.1
redalyc.org/img/modelo-oa.pnghttp/1.1
redalyc.org/img/modelo-Calidad.gifhttp/1.1
redalyc.org/img/modelo-Calidad-en.pnghttp/1.1
redalyc.org/img/modelo-XML.pnghttp/1.1
redalyc.org/img/modelo-noAPC.pnghttp/1.1
redalyc.org/img/Icono-evaluacion-2020G.gifhttp/1.1
redalyc.org/img/Icono-evaluacion-2020G-en.pnghttp/1.1
redalyc.org/%7B%7Bc.srcEsp%7D%7Dhttp/1.1
redalyc.org/%7B%7Bc.srcIng%7D%7Dhttp/1.1
redalyc.org/img/certamen.pnghttp/1.1
redalyc.org/img/UOR_logo.pnghttp/1.1
redalyc.org/img/AMERBAC_logo.pnghttp/1.1
redalyc.org/img/uvc-recon-last.pnghttp/1.1
redalyc.org/img/clacso-recon-last.pnghttp/1.1
redalyc.org/img/fiap-recon-last.pnghttp/1.1
/img/4-diciembre 2014 Premio Nacional del Libro Venezuela...http/1.1
redalyc.org/img/5-octubre%202012%20XII%20SEMINARIO%20RII%20brasil%20copia.pnghttp/1.1
/img/6-julio 2012 Consejo Superior de Investigaciones Cie...http/1.1
/img/7-abril 2012 Congreso Internacional de Informacion I...http/1.1
redalyc.org/img/8-diciembre%202011%20Premio%20alvaro%20Perez-Ugena.pnghttp/1.1
redalyc.org/img/9-octubre%202011%20Universidad%20Complutense%20de%20Madrid.pnghttp/1.1
redalyc.org/img/10-Abril%202011%20Universidad%20de%20los%20Andes.pnghttp/1.1
redalyc.org/img/11-julio%202011%20top%20portales%20webometrics.pnghttp/1.1
/img/12-septiembre 2009 Informe Mundial de las Ciencias S...http/1.1
redalyc.org/img/13-septiembre%202009%20World_Summit_Award_WSA.pnghttp/1.1
redalyc.org/img/unesco-last.pnghttp/1.1
redalyc.org/img/clacso-relat-last.pnghttp/1.1
redalyc.org/img/shuttleworth-foundation.pnghttp/1.1
redalyc.org/img/indian-statistical-institute.pnghttp/1.1
redalyc.org/img/doaj-last.pnghttp/1.1
redalyc.org/img/ioi-last.pnghttp/1.1
redalyc.org/img/scoss-last.pnghttp/1.1
redalyc.org/img/pop-up-firmas.pnghttp/1.1
redalyc.org/img/administracion%202021.pnghttp/1.1
redalyc.org/redalyc/jsons/mapa/paises.jsonhttp/1.1
redalyc.org/img/fondo-imagen-covid.jpghttp/1.1
redalyc.org/img/fondo-oscuro.jpghttp/1.1
redalyc.org/redalyc/jsons/mapa/paisesProduccion.jsonhttp/1.1
redalyc.org/redalyc/jsons/mapa/paisesProduccionAutores.jsonhttp/1.1
redalyc.org/redalyc/jsons/traducciones/home-es.jsonhttp/1.1
redalyc.org/img/Arcadia%20banner%20home%20redalyc%20esp.pnghttp/1.1
redalyc.org/img/Banner-AcuerdoRedClara-LAReferencia-Redalyc-3-.pnghttp/1.1
redalyc.org/img/img-consejo%20-asesor.pnghttp/1.1
redalyc.org/img/r2020.icohttp/1.1

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
redalyc.org/js/worldLow.js97.0 KiB752 ms
redalyc.org/js/worldLowAutorHome.js55.4 KiB566 ms
redalyc.org/js/core.js211.5 KiB1.3 s
redalyc.org/js/ammap.js47.9 KiB566 ms
redalyc.org/js/dataloader.min.js2.8 KiB194 ms
redalyc.org/js/maps.js39.7 KiB380 ms
redalyc.org/js/mapan.js1.5 KiB194 ms
redalyc.org/js/charts.js60.3 KiB566 ms
redalyc.org/js/animated.js908 B194 ms
redalyc.org/js/angular.js66.3 KiB1.1 s
redalyc.org/js/homeJS.js5.6 KiB566 ms
redalyc.org/js/jquery.min.js32.6 KiB752 ms
redalyc.org/css/popUp.css982 B194 ms
redalyc.org/js/slider.js1.4 KiB194 ms
redalyc.org/css/home.css19.4 KiB752 ms
redalyc.org/js/homeAngularJS.js3.7 KiB566 ms
redalyc.org/js/popUp.js1.1 KiB566 ms
redalyc.org/css/ammap.css892 B566 ms
redalyc.org/css/slider.css1.4 KiB566 ms
use.fontawesome.com/releases/v5.2.0/css/all.css11.1 KiB254 ms

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
div#container-scoss-arca > div.banners-scoss-arca > div#sliderScoss-arca > div.slItems div#container-scoss-arca > div.banners-scoss-arca > div#sliderScoss-arca > div.slItems
0.869
ÍNDICE DE REVISTAS CERTIFICADAS REDALYC Por Idioma Por País Por Disciplina Por … body.ng-scope > main > div#home-principal > div#container-header-nav-sect
0.109
No mostrar de nuevo body.ng-scope > main > div#popup > label
0.007
div#headerHomeRedalyc > div#buscador > div#buscadorN > div.container-input
0.006
div#headerHomeRedalyc > div#buscador > div#buscadorN > div.container-input
0.002

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 130 ms 22.0 KiB
URLTransfer SizeEst Savings
redalyc.org/css/home.css19.0 KiB11.5 KiB
use.fontawesome.com/releases/v5.2.0/css/all.css10.6 KiB10.5 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 360 ms 334.6 KiB
URLTransfer SizeEst Savings
redalyc.org/js/core.js211.1 KiB109.9 KiB
www.googletagmanager.com/gtag/js?id=G-PG5DW8YGFY147.9 KiB59.5 KiB
redalyc.org/js/charts.js59.9 KiB48.6 KiB
redalyc.org/js/ammap.js47.5 KiB44.5 KiB
redalyc.org/js/angular.js65.9 KiB29.2 KiB
redalyc.org/js/maps.js39.3 KiB22.9 KiB
redalyc.org/js/jquery.min.js32.2 KiB20.0 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
redalyc.org/js/core.js2.2 s1.5 s14 ms
redalyc.org/js/angular.js204 ms192 ms3.4 ms
Unattributable187 ms2.1 ms0.0 ms
redalyc.org/158 ms19 ms0.4 ms
redalyc.org/js/mapan.js128 ms91 ms1.0 ms
www.googletagmanager.com/gtag/js?id=G-PG5DW8YGFY61 ms47 ms7.9 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation1.9 s
Other394 ms
Style & Layout371 ms
Rendering133 ms
Garbage Collection84 ms
Script Parsing & Compilation48 ms
Parse HTML & CSS30 ms

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 3.9 KiB
URLTransfer SizeEst Savings
redalyc.org/css/home.css19.4 KiB3.9 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer Size
redalyc.org/img/pop-up-firmas.png627.6 KiB
redalyc.org/img/nuevoHeaderHome/banner_arcadia_eng.png454.9 KiB
redalyc.org/img/nuevoHeaderHome/banner_arcadia_esp.png453.9 KiB
www.youtube.com/s/player/1bb6ee63/player_embed_es6.vflset/en_US/base.js436.0 KiB
redalyc.org/img/Arcadia%20banner%20home%20redalyc%20esp.png362.8 KiB
redalyc.org/img/nuevoHeaderHome/banner_OAWeek_2024_esp.png338.9 KiB
redalyc.org/img/nuevoHeaderHome/banner_OAWeek_2024_eng.png337.4 KiB
redalyc.org/js/core.js211.5 KiB
/s/_/ytembeds/_/js/k=ytembeds.base.en_US.5f0apfZzpOA.2021...183.1 KiB
redalyc.org/img/nuevoHeaderHome/banner_arcadia_eng_m.png180.6 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
div.background-manifiesto > ng-container.ng-scope > a > img.imges div.background-manifiesto > ng-container.ng-scope > a > img.imges
redalyc.org/img/nuevoHeaderHome/banner_OAWeek_2024_esp.png
div.background-manifiesto > a > ng-container.ng-scope > img.imges div.background-manifiesto > a > ng-container.ng-scope > img.imges
redalyc.org/img/nuevoHeaderHome/banner_manifiesto_esp.png
div.background-manifiesto > a > ng-container.ng-scope > img.imges div.background-manifiesto > a > ng-container.ng-scope > img.imges
redalyc.org/img/nuevoHeaderHome/banner_crowdfunding_esp.png
div.background-manifiesto > a > ng-container.ng-scope > img.imgen div.background-manifiesto > a > ng-container.ng-scope > img.imgen
redalyc.org/img/nuevoHeaderHome/banner_arcadia_esp.png
main > div#popup > a > img main > div#popup > a > img
redalyc.org/img/pop-up-firmas.png
LATIN AMERICAN OPEN ACCESS ESSAY COMPETITION 2020 div#element-banner4 > div.ng-scope > a > img.image-banner-esp
redalyc.org/img/Banner-AcuerdoRedClara-LAReferencia-Redalyc-3-.png
Política de Acceso Abierto sin costos por publicación o procesamiento div.back-diamond > div#papalotes-modelo > div > img
redalyc.org/img/modelo-noAPC.png
acceso abierto div.back-diamond > div#papalotes-modelo > div > img
redalyc.org/img/modelo-oa.png
Tecnología de publicación digital (XML JATS) div.back-diamond > div#papalotes-modelo > div > img
redalyc.org/img/modelo-XML.png
evaluación de la ciencia basada en métricas div.back-diamond > div#papalotes-modelo > div > img.ng-scope
redalyc.org/img/Icono-evaluacion-2020G.gif
calendario de capacitaciones marcalyc div#element-colaboration2 > div.ng-scope > a > img.image-banner-esp
redalyc.org/img/img-consejo%20-asesor.png
modelo con revision de calidad div.back-diamond > div#papalotes-modelo > div > img.ng-scope
redalyc.org/img/modelo-Calidad.gif
proyectos en colaboracion con shutleworth fundation main > div#container-relations > div#relations-logos > img#relat-shutleworth
redalyc.org/img/shuttleworth-foundation.png
elaboracion de proyectos de libre acceso main > div#container-relations > div#relations-logos > img#relat-clacso
redalyc.org/img/clacso-relat-last.png
difución del acceso abierto main > div#container-relations > div#relations-logos > img#relat-indian
redalyc.org/img/indian-statistical-institute.png
investigaciones con relat-ioi main > div#container-relations > div#relations-logos > img#relat-ioi
redalyc.org/img/ioi-last.png
Diploma de honor a Redalyc div.slItems > div.slItem > div.card-recon > img
redalyc.org/img/uvc-recon-last.png
colaboracion con la unesco main > div#container-relations > div#relations-logos > img#relat-unesco
redalyc.org/img/unesco-last.png
acceso abierto con metricas main > div#container-relations > div#relations-logos > img#relat-doaj
redalyc.org/img/doaj-last.png
Reconocimiento como la mejor página de e-ciencia de México, World Summit Award,… div.slItems > div.slItem > div.card-recon > img
redalyc.org/img/13-septiembre%202009%20World_Summit_Award_WSA.png
div#tituloHeader > div > div.rect1 > img#to-home div#tituloHeader > div > div.rect1 > img#to-home
redalyc.org/img/nuevoHeaderHome/logo_redalyc.png
main > footer#pie-pagina > div#pie-logos > img main > footer#pie-pagina > div#pie-logos > img
redalyc.org/img/nuevoHeaderHome/logo_redalyc.png
Mencionada como modelo de comunicación científica en América Latina, en el Info… div.slItems > div.slItem > div.card-recon > img
/img/12-septiembre 2009 Informe Mundial de las Ciencias S...
Premio Nacional del Libro Venezuela, en la categoría de Libro Científico-Técnic… div.slItems > div.slItem > div.card-recon > img
/img/4-diciembre 2014 Premio Nacional del Libro Venezuela...
colaboración para el acceso abierto main > div#container-relations > div#relations-logos > img#relat-scoss
redalyc.org/img/scoss-last.png
Premio Latinoamericano y Caribeño de Ciencias Sociales CLACSO div.slItems > div.slItem > div.card-recon > img
redalyc.org/img/clacso-recon-last.png
coleccionDeRevistas div.container-row-linked > div#card6-linked > div.img > img
redalyc.org/img/educacionCalidad_img.png
coleccionDeRevistas div.container-row-linked > div#card7-linked > div.img > img
redalyc.org/img/hambreCero_img.png
coleccionDeRevistas div.container-row-linked > div#card8-linked > div.img > img
redalyc.org/img/reduccionDesigualdades_img.png
coleccionDeRevistas div.container-row-linked > div#card1-linked > div.img > img
redalyc.org/img/img-ancestral.png
coleccionDeRevistas div.container-row-linked > div#card2-linked > div.img > img
redalyc.org/img/img-pandemias.png
coleccionDeRevistas div.container-row-linked > div#card3-linked > div.img > img
redalyc.org/img/img-genero.png
coleccionDeRevistas div.container-row-linked > div#card4-linked > div.img > img
redalyc.org/img/climate_icon.png
coleccionDeRevistas div.container-row-linked > div#card5-linked > div.img > img
redalyc.org/img/poverty_icon.png
Reconocimiento por la diseminación de la comunicación científica y democratizac… div.slItems > div.slItem > div.card-recon > img
redalyc.org/img/5-octubre%202012%20XII%20SEMINARIO%20RII%20brasil%20copia.png
coleccionDeRevistas div.icons > div.card-icon-serv > div.img > img
redalyc.org/img/tarjeta-indice.png
coleccionDeRevistas div.icons > div.card-icon-serv > div.img > img
redalyc.org/img/tarjeta-produccion.png
profesionalizacion div.icons > div.card-icon-serv > div.img > img
redalyc.org/img/tarjeta-profesionalizacion.png
indicadores div.icons > div.card-icon-serv > div.img > img
redalyc.org/img/tarjeta-indicadores.png
authors div.icons > div.card-icon-serv > div.img > img
redalyc.org/img/tajeta-autores.png
Periscopio div.icons > div.card-icon-serv > div.img > img
redalyc.org/img/tajeta-linked-open-data.png
Reconocimiento especial en el marco del Congreso Internacional de Información I… div.slItems > div.slItem > div.card-recon > img
/img/7-abril 2012 Congreso Internacional de Informacion I...
Premio Álvaro Pérez-Ugena, otorgado por la Universidad Rey Juan Carlos, la Univ… div.slItems > div.slItem > div.card-recon > img
redalyc.org/img/8-diciembre%202011%20Premio%20alvaro%20Perez-Ugena.png
main > footer#pie-pagina > div#pie-logos > img main > footer#pie-pagina > div#pie-logos > img
redalyc.org/img/administracion%202021.png
Tercer sitio a nivel mundial en top portales webometrics, y el segundo portal e… div.slItems > div.slItem > div.card-recon > img
redalyc.org/img/11-julio%202011%20top%20portales%20webometrics.png
Reconocimiento de tercer lugar en la Categoría Instituciones Académicas div.slItems > div.slItem > div.card-recon > img
redalyc.org/img/certamen.png
Reconocimiento en el fortalecimiento de la cooperación Sur-Sur, Angola. div.slItems > div.slItem > div.card-recon > img
redalyc.org/img/UOR_logo.png
Distinción por alta labor científica, Universidad Complutense de Madrid, España. div.slItems > div.slItem > div.card-recon > img
redalyc.org/img/9-octubre%202011%20Universidad%20Complutense%20de%20Madrid.png
Segundo sitio a nivel mundial en top portales webometrics, y el primer portal e… div.slItems > div.slItem > div.card-recon > img
/img/6-julio 2012 Consejo Superior de Investigaciones Cie...
Segundo sitio a nivel mundial en top portales webometrics, y el primer portal e… div.slItems > div.slItem > div.card-recon > img
/img/6-julio 2012 Consejo Superior de Investigaciones Cie...
Medalla "Doctor Caracciolo Parra y Olmedo" de la Universidad de los Andes, Vene… div.slItems > div.slItem > div.card-recon > img
redalyc.org/img/10-Abril%202011%20Universidad%20de%20los%20Andes.png
Reconocimiento a Redalyc por el papel fundamental del desarrollo y conocimiento div.slItems > div.slItem > div.card-recon > img
redalyc.org/img/fiap-recon-last.png
Reconocimiento en el marco de la primera reunión internacional del 2018 div.slItems > div.slItem > div.card-recon > img
redalyc.org/img/AMERBAC_logo.png
div#container-mapa-prod > div.prod-box > div.title-redalyc > img div#container-mapa-prod > div.prod-box > div.title-redalyc > img
redalyc.org/img/ic-prduccion%20cientifica.png
div#container-cards-prof > div.cards-prof-row > div.title-redalyc > img div#container-cards-prof > div.cards-prof-row > div.title-redalyc > img
redalyc.org/img/ic-profesionalizacion.png
body.ng-scope > main > div.container-back-image-black > img body.ng-scope > main > div.container-back-image-black > img
redalyc.org/img/ic-autores-redlayc-orcid.png
div#container-cards-linked > div.cards-linked-row > div.title-redalyc > img div#container-cards-linked > div.cards-linked-row > div.title-redalyc > img
redalyc.org/img/ic-linked-open%20data.png
div#container-cards-indicators > div.cards-indicators-row > div.title-redalyc > img div#container-cards-indicators > div.cards-indicators-row > div.title-redalyc > img
redalyc.org/img/ic-indicadores.png
div#container-icons > div.icons-redalyc > div.title-redalyc > img div#container-icons > div.icons-redalyc > div.title-redalyc > img
redalyc.org/img/sv-redalyc.png
div#home-principal > div#container-header-nav-sect > div#container-revistas-consolidadas > img div#home-principal > div#container-header-nav-sect > div#container-revistas-consolidadas > img
redalyc.org/img/revistas_consolidadas.png
coleccionDeRevistas div.container-row-indicators > div#card1-indicators > div.img > img
redalyc.org/img/t1-metodologia.png
coleccionDeRevistas div.container-row-indicators > div#card2-indicators > div.img > img
redalyc.org/img/t2-revista.png
coleccionDeRevistas div.container-row-indicators > div#card3-indicators > div.img > img
redalyc.org/img/t3-intitucion.png
coleccionDeRevistas div.container-row-indicators > div#card4-indicators > div.img > img
redalyc.org/img/t4-pais.png
coleccionDeRevistas div.container-row-black > div.card-row-black > div.img > img.img-hv
redalyc.org/img/4ic-calidad-deslect.png
coleccionDeRevistas div.container-row-black > div.card-row-black > div.img > img.img-hv
redalyc.org/img/2ic-marcacion-deslect.png
coleccionDeRevistas div.container-row-black > div.card-row-black > div.img > img.img-hv
redalyc.org/img/3ic-capacitaciones-deslect.png
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
redalyc.org/img/t1-criterios-deslect.png
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
redalyc.org/img/t1-busqueda-deslect.png
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
redalyc.org/img/t1-articulos-deslect.png
div.card-icon-enlaces > div.item > a.ver-prod > img.img-hv div.card-icon-enlaces > div.item > a.ver-prod > img.img-hv
redalyc.org/img/t2-inst-deslect.png
div.card-icon-enlaces > div.item > a.ver-prod > img.img-hv div.card-icon-enlaces > div.item > a.ver-prod > img.img-hv
redalyc.org/img/t2-pais-deslect.png
div.card-icon-enlaces > div.item > a#ver-flujo > img.img-hv div.card-icon-enlaces > div.item > a#ver-flujo > img.img-hv
redalyc.org/img/t3-xml-deslect.png
div.card-icon-enlaces > div#btn-menu-prof > a > img.img-hv div.card-icon-enlaces > div#btn-menu-prof > a > img.img-hv
redalyc.org/img/t3-capacitaciones-deslect.png
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
redalyc.org/img/t4-revistas-deslect.png
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
redalyc.org/img/t4-areas-deslect.png
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
redalyc.org/img/t4-instpais-deslect.png
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
redalyc.org/img/t5-busqa-deslect.png
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
redalyc.org/img/4ic-criterios-deslect.png
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
redalyc.org/img/4ic-estandares-deslect.png
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
redalyc.org/img/4ic-practicas-deslect.png
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
redalyc.org/img/2ic-marcalyc-deslect.png
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
redalyc.org/img/2ic-tutoriales-deslect.png
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
redalyc.org/img/1ic-metodologia-deslect.png
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
redalyc.org/img/1ic-html-deslect.png
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
redalyc.org/img/1ic-blog-deslect.png
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
redalyc.org/img/3ic-calidad-deslect.png
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
redalyc.org/img/3ic-xml-deslect.png
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
redalyc.org/img/3ic-workflow-deslect.png
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
redalyc.org/img/3ic-calendario-deslect.png
div.card-icon-enlaces > div.item > a#ver-proff > img.img-hv div.card-icon-enlaces > div.item > a#ver-proff > img.img-hv
redalyc.org/img/t3-calidad-deslect.png
div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.twitter div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.twitter
redalyc.org/img/nuevoHeaderHome/ic_in.png
div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.twitter div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.twitter
redalyc.org/img/nuevoHeaderHome/ic_x.png
div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.facebook div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.facebook
redalyc.org/img/nuevoHeaderHome/icon_fb.png
div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo
redalyc.org/img/nuevoHeaderHome/ic_abajo.png
div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo
redalyc.org/img/nuevoHeaderHome/ic_abajo.png
div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo
redalyc.org/img/nuevoHeaderHome/ic_abajo.png
div#menuResp > div#mySidepanel > span#openCience > img.flechaAbajo div#menuResp > div#mySidepanel > span#openCience > img.flechaAbajo
redalyc.org/img/nuevoHeaderHome/ic_abajo.png

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Optimize DOM size
●Optimize viewport for mobile
●Minify JavaScript
●User Timing marks and measures 9 user timings
●Avoid long main-thread tasks 5 long tasks found
●Avoid non-composited animations 6 animated elements found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 150 ms
●Server Backend Latencies 30 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Avoid multiple page redirects
●Initial server response time was short Root document took 200 ms
○INP breakdown
62

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Red de revistas científicas de Acceso Abierto diamante div#tituloHeader > div > div.rect3 > span.ng-binding
Artículos Autores Revistas Disciplinas Top 20 de instituciones Países div#buscador > div#buscadorN > div.contaidner-select > select#item-seleccionado
(1571) div#idiomas-container > div > span.simbol-numeral > b
(950) div#idiomas-container > div > span.simbol-numeral > b
(549) div#idiomas-container > div > span.simbol-numeral > b
(71) div#idiomas-container > div > span.simbol-numeral > b
(12) div#idiomas-container > div > span.simbol-numeral > b
(7) div#idiomas-container > div > span.simbol-numeral > b
(5) div#idiomas-container > div > span.simbol-numeral > b
(4) div#idiomas-container > div > span.simbol-numeral > b
(3) div#idiomas-container > div > span.simbol-numeral > b
(2) div#idiomas-container > div > span.simbol-numeral > b
(1) div#idiomas-container > div > span.simbol-numeral > b
(1) div#idiomas-container > div > span.simbol-numeral > b
(1100 Revistas) div > div#csociales > p > b.simbol-numeral
1100 div#csociales > p > b.simbol-numeral > b
Revistas div#csociales > p > b.simbol-numeral > b.ng-binding
97 div > div > span.simbol-numeral > b
40 div > div > span.simbol-numeral > b
21 div > div > span.simbol-numeral > b
45 div > div > span.simbol-numeral > b
76 div > div > span.simbol-numeral > b
69 div > div > span.simbol-numeral > b
209 div > div > span.simbol-numeral > b
21 div > div > span.simbol-numeral > b
12 div > div > span.simbol-numeral > b
32 div > div > span.simbol-numeral > b
17 div > div > span.simbol-numeral > b
160 div > div > span.simbol-numeral > b
40 div > div > span.simbol-numeral > b
97 div > div > span.simbol-numeral > b
16 div > div > span.simbol-numeral > b
58 div > div > span.simbol-numeral > b
66 div > div > span.simbol-numeral > b
(423 Revistas) div.collection-cnart > div#cnaturales > p > b.simbol-numeral
423 div#cnaturales > p > b.simbol-numeral > b
Revistas div#cnaturales > p > b.simbol-numeral > b.ng-binding
44 div > div > span.simbol-numeral > b
42 div > div > span.simbol-numeral > b
24 div > div > span.simbol-numeral > b
14 div > div > span.simbol-numeral > b
80 div > div > span.simbol-numeral > b
141 div > div > span.simbol-numeral > b
33 div > div > span.simbol-numeral > b
11 div > div > span.simbol-numeral > b
15 div > div > span.simbol-numeral > b
(275 Revistas) div.collection-cnart > div#carte > p > b.simbol-numeral
275 div#carte > p > b.simbol-numeral > b
Revistas div#carte > p > b.simbol-numeral > b.ng-binding
20 div > div > span.simbol-numeral > b
35 div > div > span.simbol-numeral > b
54 div > div > span.simbol-numeral > b
83 div > div > span.simbol-numeral > b
79 div > div > span.simbol-numeral > b
(27 Revistas) div.collection-cnart > div#sc-multidiciplinary > p > b.simbol-numeral
27 div#sc-multidiciplinary > p > b.simbol-numeral > b
Revistas div#sc-multidiciplinary > p > b.simbol-numeral > b.ng-binding
27 div > div > span.simbol-numeral > b
(839 Instituciones) div#coleccion-por-institucion > div.lista-instituciones > span#subtitulo-instituciones > span.simbol-numeral
839 div.lista-instituciones > span#subtitulo-instituciones > span.simbol-numeral > b
Instituciones div.lista-instituciones > span#subtitulo-instituciones > span.simbol-numeral > b.ng-binding
49 div > div > span.simbol-numeral > b
35 div > div > span.simbol-numeral > b
30 div > div > span.simbol-numeral > b
28 div > div > span.simbol-numeral > b
24 div > div > span.simbol-numeral > b
20 div > div > span.simbol-numeral > b
18 div > div > span.simbol-numeral > b
17 div > div > span.simbol-numeral > b
17 div > div > span.simbol-numeral > b
16 div > div > span.simbol-numeral > b
15 div > div > span.simbol-numeral > b
15 div > div > span.simbol-numeral > b
12 div > div > span.simbol-numeral > b
12 div > div > span.simbol-numeral > b
12 div > div > span.simbol-numeral > b
11 div > div > span.simbol-numeral > b
11 div > div > span.simbol-numeral > b
10 div > div > span.simbol-numeral > b
10 div > div > span.simbol-numeral > b
30412 div > div > span.simbol-numeral > b
19044 div > div > span.simbol-numeral > b
17872 div > div > span.simbol-numeral > b
15924 div > div > span.simbol-numeral > b
2461 div > div > span.simbol-numeral > b
7034 div > div > span.simbol-numeral > b
5312 div > div > span.simbol-numeral > b
8688 div > div > span.simbol-numeral > b
9671 div > div > span.simbol-numeral > b
5418 div > div > span.simbol-numeral > b
11304 div > div > span.simbol-numeral > b
6709 div > div > span.simbol-numeral > b
8346 div > div > span.simbol-numeral > b
6353 div > div > span.simbol-numeral > b
8871 div > div > span.simbol-numeral > b
1923 div > div > span.simbol-numeral > b
3665 div > div > span.simbol-numeral > b
6451 div > div > span.simbol-numeral > b
4787 div > div > span.simbol-numeral > b
8307 div > div > span.simbol-numeral > b
La Metodología para la evaluación de la investigación... div#enlaces-metodologia > div.item > p#completo-texto-metodologia > span.ng-binding
Ver más div#btn-orange-metodologia > div.text-btn-cc > a > span.ng-binding
La Metodología para la evaluación de la investigación... div#enlaces-revista > div.item > p#completo-texto-revista > span.ng-binding
La Metodología para la evaluación de la investigación... div#enlaces-institucion > div.item > p#completo-texto-institucion > span.ng-binding
La Metodología para la evaluación de la investigación... div#enlaces-pais > div.item > p#completo-texto-pais > span.ng-binding
Ver más div#btn-gren-pais > div.text-btn-cc > a > span.ng-binding
Localiza autores div.head-orcid > div.container-search-aut > div.orcid-cnt-tit > span.title-autores
de formas de autor div.container-redalyc-orcid > div.right-orcid > div.container-log-orcid > span.subtit-log-autores
páginas de autor div.right-orcid > div.container-log-orcid > span.tit-log-autores > span.subtit-log-autores
Iniciar sesión div.container-log-orcid > div.buttons-autores > a.btn-start-sesion > span.ng-binding
¿Qué es autores Redalyc / ORCID? div.container-log-orcid > div.cont-enlaces-autores > a.enlace-autores > span.ng-binding
Integración Redalyc / ORCID div.container-log-orcid > div.cont-enlaces-autores > a.enlace-autores > span.ng-binding
Videotutoriales div.container-log-orcid > div.cont-enlaces-autores > a.enlace-autores > span.ng-binding
Crea tu página de autor div.container-log-orcid > div.cont-enlaces-autores > a.enlace-autores > span.ng-binding
Indicadores de autor div.container-log-orcid > div.cont-enlaces-autores > a.enlace-autores > span.ng-binding
Vincula ORCID con tus artículos en Redalyc div.container-log-orcid > div.cont-enlaces-autores > a.enlace-autores > span.ng-binding
Tiene por objetivo integrar los contenidos científicos publicados en las revist… div#card1-linked > div.card-row-linked-enlaces > div.item > span.card-ind-text
Redalyc refrenda su compromiso con el Acceso Abierto y sigue desarrollando tecn… div#card2-linked > div.card-row-linked-enlaces > div.item > span.card-ind-text
La colección de artículos científicos sobre Estudios de Género se extrajo de la… div#card3-linked > div.card-row-linked-enlaces > div.item > span.card-ind-text
La colección semántica de Acción por el Clima, tiene por objetivo consolidar co… div#card4-linked > div.card-row-linked-enlaces > div.item > span.card-ind-text
La Colección de Fin de la Pobreza se construyó a partir de la base de datos de … div#card5-linked > div.card-row-linked-enlaces > div.item > span.card-ind-text
La colección semántica de Educación de Calidad, tiene como objetivo consolidar … div#card6-linked > div.card-row-linked-enlaces > div.item > span.card-ind-text
La colección semántica de Hambre Cero, tiene como objetivo consolidar contenido… div#card7-linked > div.card-row-linked-enlaces > div.item > span.card-ind-text
Ir al sitio div.card-row-linked-enlaces > div.item > a > span.ng-binding
La colección semántica de Reducción de las Desigualdades, que tiene como objeti… div#card8-linked > div.card-row-linked-enlaces > div.item > span.card-ind-text
No mostrar de nuevo body.ng-scope > main > div#popup > label
Sistema de Información Científica Redalyc footer#pie-pagina > div#informacion-redalyc > span > b.ng-binding
Red de revistas científicas de Acceso Abierto no comercial propiedad de la acad… main > footer#pie-pagina > div#informacion-redalyc > span.ng-binding
Redalyc Versión 5.0 | 2003- main > footer#pie-pagina > div#informacion-redalyc > span.ng-binding
2026 main > footer#pie-pagina > div#informacion-redalyc > span#current-year
comunicacion@redalyc.org main > footer#pie-pagina > div#informacion-redalyc > span

These are opportunities to improve the legibility of your content.

Internationalization and localization

If a page doesn't specify a `lang` attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn more about the `lang` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html.ng-scope html.ng-scope

These are opportunities to improve the interpretation of your content by users in different locales.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#tituloHeader > div > div.rect1 > img#to-home div#tituloHeader > div > div.rect1 > img#to-home
div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo
div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo
div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo
div#menuResp > div#mySidepanel > span#openCience > img.flechaAbajo div#menuResp > div#mySidepanel > span#openCience > img.flechaAbajo
div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.twitter div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.twitter
div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.twitter div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.twitter
div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.facebook div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.facebook
div.background-manifiesto > ng-container.ng-scope > a > img.imges div.background-manifiesto > ng-container.ng-scope > a > img.imges
div#home-principal > div#container-header-nav-sect > div#container-revistas-consolidadas > img div#home-principal > div#container-header-nav-sect > div#container-revistas-consolidadas > img
div#footer-left-pandemics > div#shadow-pandemics > a > img div#footer-left-pandemics > div#shadow-pandemics > a > img
div#container-icons > div.icons-redalyc > div.title-redalyc > img div#container-icons > div.icons-redalyc > div.title-redalyc > img
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
div.card-icon-enlaces > div.item > a.ver-prod > img.img-hv div.card-icon-enlaces > div.item > a.ver-prod > img.img-hv
div.card-icon-enlaces > div.item > a.ver-prod > img.img-hv div.card-icon-enlaces > div.item > a.ver-prod > img.img-hv
div.card-icon-enlaces > div.item > a#ver-proff > img.img-hv div.card-icon-enlaces > div.item > a#ver-proff > img.img-hv
div.card-icon-enlaces > div.item > a#ver-flujo > img.img-hv div.card-icon-enlaces > div.item > a#ver-flujo > img.img-hv
div.card-icon-enlaces > div#btn-menu-prof > a > img.img-hv div.card-icon-enlaces > div#btn-menu-prof > a > img.img-hv
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
div#container-mapa-prod > div.prod-box > div.title-redalyc > img div#container-mapa-prod > div.prod-box > div.title-redalyc > img
div#container-cards-prof > div.cards-prof-row > div.title-redalyc > img div#container-cards-prof > div.cards-prof-row > div.title-redalyc > img
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div#container-cards-indicators > div.cards-indicators-row > div.title-redalyc > img div#container-cards-indicators > div.cards-indicators-row > div.title-redalyc > img
body.ng-scope > main > div.container-back-image-black > img body.ng-scope > main > div.container-back-image-black > img
div#container-cards-linked > div.cards-linked-row > div.title-redalyc > img div#container-cards-linked > div.cards-linked-row > div.title-redalyc > img
main > footer#pie-pagina > div#pie-logos > img main > footer#pie-pagina > div#pie-logos > img
main > footer#pie-pagina > div#pie-logos > img main > footer#pie-pagina > div#pie-logos > img

When an image is being used as an `<input>` button, providing alternative text can help screen reader users understand the purpose of the button. Learn about input image alt text.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
main > div#coleccion-por-institucion > div.lista-instituciones > input#lupa-mas-instituciones main > div#coleccion-por-institucion > div.lista-instituciones > input#lupa-mas-instituciones
div.box-inst-prod > div#coleccion-por-institucion-prod > div.lista-instituciones > input#lupa-mas-instituciones div.box-inst-prod > div#coleccion-por-institucion-prod > div.lista-instituciones > input#lupa-mas-instituciones

Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.box-inst-prod > div#coleccion-por-institucion-prod > div.lista-instituciones > input#buscar-mas-instituciones div.box-inst-prod > div#coleccion-por-institucion-prod > div.lista-instituciones > input#buscar-mas-instituciones

Form elements without effective labels can create frustrating experiences for screen reader users. Learn more about the `select` element.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Artículos Autores Revistas Disciplinas Top 20 de instituciones Países div#buscador > div#buscadorN > div.contaidner-select > select#item-seleccionado

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#home-principal > div#headerHomeRedalyc > div.idiomas-redes-estaticas > a div#home-principal > div#headerHomeRedalyc > div.idiomas-redes-estaticas > a
div#home-principal > div#headerHomeRedalyc > div.idiomas-redes-estaticas > a div#home-principal > div#headerHomeRedalyc > div.idiomas-redes-estaticas > a
div#home-principal > div#headerHomeRedalyc > div.idiomas-redes-estaticas > a div#home-principal > div#headerHomeRedalyc > div.idiomas-redes-estaticas > a
div.slItem > div.background-manifiesto > ng-container.ng-scope > a div.slItem > div.background-manifiesto > ng-container.ng-scope > a
div.slItem > div.background-manifiesto > ng-container.ng-scope > a div.slItem > div.background-manifiesto > ng-container.ng-scope > a
div.pandemics-block > div#footer-left-pandemics > div#shadow-pandemics > a div.pandemics-block > div#footer-left-pandemics > div#shadow-pandemics > a
div.slItem > div#element-banner4 > div.ng-scope > a div.slItem > div#element-banner4 > div.ng-scope > a
div.slItem > div#element-banner4 > div.ng-scope > a div.slItem > div#element-banner4 > div.ng-scope > a
body.ng-scope > main > div#popup > a

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
main > div#coleccion-por-institucion > div.lista-instituciones > input#lupa-mas-instituciones main > div#coleccion-por-institucion > div.lista-instituciones > input#lupa-mas-instituciones
Buscar en Pandemics div#head-right-pandemics > div#buscador-pandemics > div.container-input > input#boton-buscar-articulo-pandemics
Texto completo div.slItem > div.container-pandemic-card-lts > p.card-full > a.ng-binding
¿Qué es autores Redalyc / ORCID? div.right-orcid > div.container-log-orcid > div.cont-enlaces-autores > a.enlace-autores
Integración Redalyc / ORCID div.right-orcid > div.container-log-orcid > div.cont-enlaces-autores > a.enlace-autores
Videotutoriales div.right-orcid > div.container-log-orcid > div.cont-enlaces-autores > a.enlace-autores
Crea tu página de autor div.right-orcid > div.container-log-orcid > div.cont-enlaces-autores > a.enlace-autores
Indicadores de autor div.right-orcid > div.container-log-orcid > div.cont-enlaces-autores > a.enlace-autores

These items highlight common accessibility best practices.

○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●Links are distinguishable without relying on color.
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○Buttons have an accessible name
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has a valid value for its `[lang]` attribute
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
○List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Skip links are focusable.
○No element has a `[tabindex]` value greater than 0
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Elements with visible text labels have matching accessible names.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
88

Best Practices

User Experience

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLAspect Ratio (Displayed)Aspect Ratio (Actual)
LATIN AMERICAN OPEN ACCESS ESSAY COMPETITION 2020 div#element-banner4 > div.ng-scope > a > img.image-banner-esp
redalyc.org/img/Arcadia%20banner%20home%20redalyc%20esp.png472 x 210 (2.25)908 x 398 (2.28)

Browser Compatibility

Specifying a doctype prevents the browser from switching to quirks-mode. Learn more about the doctype declaration.

Why this matters

Performance issues directly impact user engagement and conversion rates.

General

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
redalyc.org/js/core.js
Error: html container not found at de (https://redalyc.org/js/core.js:1:296516) at Object.be (https://redalyc.org/js/core.js:1:297515) at https://redalyc.org/js/mapan.js:5:21
redalyc.org/js/core.js
Error: html container not found at de (https://redalyc.org/js/core.js:1:296516) at Object.be (https://redalyc.org/js/core.js:1:297515) at https://redalyc.org/js/mapan.js:62:22
redalyc.org/js/core.js
Error: html container not found at de (https://redalyc.org/js/core.js:1:296516) at Object.be (https://redalyc.org/js/core.js:1:297515) at https://redalyc.org/js/mapan.js:62:22
redalyc.org/%7B%7Bc.srcEsp%7D%7D
Failed to load resource: the server responded with a status of 404 (Not Found)
redalyc.org/%7B%7Bc.srcIng%7D%7D
Failed to load resource: the server responded with a status of 404 (Not Found)

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLMap URL
redalyc.org/js/core.js
redalyc.org/js/angular.jsredalyc.org/js/angular.min.js.map
●Uses HTTPS
●Avoids deprecated APIs
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Serves images with appropriate resolution
●Properly defines charset
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
○Redirects HTTP traffic to HTTPS
83

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Integración OJS div#menuResp > div#mySidepanel > div#menu-tecnologias > a
Generación Automática de ePUB, PDF HTML div#menuResp > div#mySidepanel > div#menu-tecnologias > a
Visor de artículos div#menuResp > div#mySidepanel > div#menu-tecnologias > a
Visor móvil de articulos div#menuResp > div#mySidepanel > div#menu-tecnologias > a
Producción de instituciones div.card-icon-serv > div.card-icon-enlaces > div.item > a.ver-prod
Producción de paises div.card-icon-serv > div.card-icon-enlaces > div.item > a.ver-prod
Interoperabilidad con repositorios div.card-icon-serv > div.card-icon-enlaces > div.item > a
Capacitaciones div.card-icon-serv > div.card-icon-enlaces > div#btn-menu-prof > a

To appear in search results, crawlers need access to your app.

Content Best Practices

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#tituloHeader > div > div.rect1 > img#to-home div#tituloHeader > div > div.rect1 > img#to-home
div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo
div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo
div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo div#menuResp > div#mySidepanel > span.menu-visible > img.flechaAbajo
div#menuResp > div#mySidepanel > span#openCience > img.flechaAbajo div#menuResp > div#mySidepanel > span#openCience > img.flechaAbajo
div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.twitter div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.twitter
div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.twitter div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.twitter
div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.facebook div#headerHomeRedalyc > div.idiomas-redes-estaticas > a > img.facebook
div.background-manifiesto > ng-container.ng-scope > a > img.imges div.background-manifiesto > ng-container.ng-scope > a > img.imges
div#home-principal > div#container-header-nav-sect > div#container-revistas-consolidadas > img div#home-principal > div#container-header-nav-sect > div#container-revistas-consolidadas > img
div#footer-left-pandemics > div#shadow-pandemics > a > img div#footer-left-pandemics > div#shadow-pandemics > a > img
div#container-icons > div.icons-redalyc > div.title-redalyc > img div#container-icons > div.icons-redalyc > div.title-redalyc > img
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
div.card-icon-enlaces > div.item > a.ver-prod > img.img-hv div.card-icon-enlaces > div.item > a.ver-prod > img.img-hv
div.card-icon-enlaces > div.item > a.ver-prod > img.img-hv div.card-icon-enlaces > div.item > a.ver-prod > img.img-hv
div.card-icon-enlaces > div.item > a#ver-proff > img.img-hv div.card-icon-enlaces > div.item > a#ver-proff > img.img-hv
div.card-icon-enlaces > div.item > a#ver-flujo > img.img-hv div.card-icon-enlaces > div.item > a#ver-flujo > img.img-hv
div.card-icon-enlaces > div#btn-menu-prof > a > img.img-hv div.card-icon-enlaces > div#btn-menu-prof > a > img.img-hv
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
div.card-icon-enlaces > div.item > a > img.img-hv div.card-icon-enlaces > div.item > a > img.img-hv
div#container-mapa-prod > div.prod-box > div.title-redalyc > img div#container-mapa-prod > div.prod-box > div.title-redalyc > img
div#container-cards-prof > div.cards-prof-row > div.title-redalyc > img div#container-cards-prof > div.cards-prof-row > div.title-redalyc > img
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div.card-row-black-enlaces > div.item > a > img.img-hv-prof div.card-row-black-enlaces > div.item > a > img.img-hv-prof
div#container-cards-indicators > div.cards-indicators-row > div.title-redalyc > img div#container-cards-indicators > div.cards-indicators-row > div.title-redalyc > img
body.ng-scope > main > div.container-back-image-black > img body.ng-scope > main > div.container-back-image-black > img
div#container-cards-linked > div.cards-linked-row > div.title-redalyc > img div#container-cards-linked > div.cards-linked-row > div.title-redalyc > img
main > footer#pie-pagina > div#pie-logos > img main > footer#pie-pagina > div#pie-logos > img
main > footer#pie-pagina > div#pie-logos > img main > footer#pie-pagina > div#pie-logos > img

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links have descriptive text
●robots.txt is valid
●Document has a valid `hreflang`
○Document has a valid `rel=canonical`

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