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Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
38
GRADE
F
FIX
9
REVIEW
4
PASS
0
INFO
0
Checks
13
4 REVIEW 9 FIX
F
Alt Text Quality
Action
48 of 103 images have issues
FIX
48 of 103 images have issues
Critical::
48 image(s) missing alt attribute
Images without alt text are invisible to screen readers.
Critical::
32 image-in-link without alt text
An image inside a link with no alt creates an empty link.
Info::
3 image(s) with alt text over 125 characters
Info::
1 decorative image(s) correctly marked
Info::
51 image(s) with good alt text
103 images 51 good alt text 1 decorative 48 missing
IssueCount
missing48 image(s)
too long3 image(s)

Images without alt text are invisible to screen readers.

Why this matters

Each image without alt text is a WCAG 1.1.1 failure — invisible to screen-reader users, lost from Google Image Search.

Learn more

WCAG 2.1 Level A requires text alternatives for non-decorative images. Empty alt='' is fine for decorative; meaningful images need descriptive text. Common fixes: CMS audit + bulk add, build-time linter (alt-text-required ESLint rule), CI gate on Lighthouse a11y score.

Source: WCAG 2.1 SC 1.1.1 / WebAIM Million Report

An image inside a link with no alt creates an empty link.

Why this matters

Image-only links with no alt create empty links — screen-reader users hear 'link' with no destination context.

Learn more

An <a><img></a> with no img alt is the worst-case for accessibility: AT announces the link but can't describe where it goes. Either add alt to the image OR add aria-label to the link.

Source: WCAG 2.1 SC 2.4.4

F
Form Accessibility
Action
11 of 12 controls have issues
FIX
11 of 12 controls have issues
Critical::
6 control(s) without accessible label
Form controls need a <label>, aria-label, or aria-labelledby for screen readers.
Got: <select name="itemseleccionado" id="item-seleccionado">; <input type="image" name="boton-buscar-articulo" id="boton-buscar-articulo">; <input type="image" id="lupa-mas-instituciones">; <input type="image" name="boton-buscar-articulo-pandemics" id="boton-buscar-articulo-pandemics">; <input type="text" id="buscar-mas-instituciones">; <input type="image" id="lupa-mas-instituciones">
Warning::
5 control(s) rely on placeholder only
Placeholder text disappears on focus and is not a reliable label.
Got: <input type="text" name="input-articulo" id="input-articulo">; <input type="text" id="buscar-mas-instituciones">; <input type="text" name="input-articulo-pandemics" id="input-articulo-pandemics">; <input id="box-autor-nombre">; <input id="box-autor-inst">
Info::
1 control(s) properly labeled
12 controls
1 labeled
5 placeholder only
6 unlabeled
ControlTypeLabelMethod
#noMostrarCheckboxcheckboxnone
#buscar-mas-institucionestext(Buscar más instituciones)placeholder only
#input-articulo-pandemicstext(Buscar por palabra clave, título, DOI)placeholder only
#box-autor-nombreinput(Nombre o apellido)placeholder only
#box-autor-instinput(Nombre de institución)placeholder only
#input-articulotext(Buscar por palabra clave, título, DOI o texto completo)placeholder only
#boton-buscar-articulo-pandemicsimage(none)none
#buscar-mas-institucionestext(none)none
#lupa-mas-institucionesimage(none)none
#item-seleccionadoselect(none)none
#lupa-mas-institucionesimage(none)none
#boton-buscar-articuloimage(none)none

Form controls need a <label>, aria-label, or aria-labelledby for screen readers.

<select name="itemseleccionado" id="item-seleccionado">; <input type="image" name="boton-buscar-articulo" id="boton-buscar-articulo">; <input type="image" id="lupa-mas-instituciones">; <input type="image" name="boton-buscar-articulo-pandemics" id="boton-buscar-articulo-pandemics">; <input type="text" id="buscar-mas-instituciones">; <input type="image" id="lupa-mas-instituciones">

Why this matters

Form controls without labels — assistive tech announces 'edit text' with no context; users can't complete forms.

Source: WCAG 2.1 SC 3.3.2

Placeholder text disappears on focus and is not a reliable label.

<input type="text" name="input-articulo" id="input-articulo">; <input type="text" id="buscar-mas-instituciones">; <input type="text" name="input-articulo-pandemics" id="input-articulo-pandemics">; <input id="box-autor-nombre">; <input id="box-autor-inst">

Why this matters

Placeholder-only labels disappear when the user starts typing — they must remember what the field was for.

Learn more

Placeholders are NOT labels. They vanish on input, fail color contrast checks (most are gray), and don't satisfy WCAG SC 3.3.2. Always use a real <label> alongside (or aria-labelledby).

Source: WCAG 2.1 SC 3.3.2 / Nielsen Norman

F
404 Error Page
Action
HTTP 404, bare page
FIX
HTTP 404, bare page
Info::
Correct 404 status code returned
Got: HTTP 404
Warning::
Bare server default 404 page
The 404 page has no custom styling. Users hitting a broken link see a generic error with no way to navigate back. Add a custom 404 page with your site navigation and a search bar.
404 Page Quality Default 404 Page
Status Code HTTP 404 Custom Styling Navigation Homepage Link Search Form
F
Favicon & Branding
Action
1 icon(s) detected
FIX
1 icon(s) detected
Warning::
No favicon.ico at site root
Some older browsers, bookmark tools, and RSS readers look for /favicon.ico. Add one as a fallback.
Info::
HTML icon links detected
Info::
No apple-touch-icon detected
iOS devices use this when users add your site to their home screen. Add <link rel='apple-touch-icon' sizes='180x180' href='/apple-touch-icon.png'>.
favicon.ico Missing
PNG Icons Present
Apple Touch Missing
SVG Favicon Missing
Manifest Icons Missing
Multiple Sizes Missing
D
Web Manifest
Action
Not found
FIX
Not found
Info::
No web manifest found
No manifest at standard paths (/manifest.json, /site.webmanifest). A manifest is optional but enables PWA features like home screen installation and standalone display.

No web manifest found.

D
Dark Mode Support
Action
No dark mode signals
FIX
No dark mode signals
Info::
No dark mode signals detected
Consider adding CSS with @media (prefers-color-scheme: dark) and <meta name='color-scheme' content='light dark'>.
Info::
Detection limited to meta tags and inline styles
External CSS files may contain prefers-color-scheme rules not visible to this scan.
Dark ModeNo Dark Mode Detected
color-scheme meta Not set Dark theme-color Not set CSS indicators Not detected

Detection limited to meta tags and inline styles.

D
Print Stylesheet
Action
No print styles
FIX
No print styles
Info::
No print-specific styles detected
When users print this page, they get the screen layout including navigation and non-essential elements. Add @media print rules to hide navigation and optimize layout for paper.
Print Stylesheet No Print Styles
Print stylesheet Not found Inline @media print Not detected
F
Navigation UX
Action
No navigation patterns
FIX
No navigation patterns
Info::
Hamburger menu detected (responsive design)
Info::
No breadcrumbs, search, or skip link detected
These navigation aids help users orient themselves and find content efficiently, especially on large sites.
Breadcrumbs
Search
Skip Link
Labeled Navigation
Back to Top
Hamburger Menu
Sticky Navigation Cannot reliably detect (CSS-based)
1 of 6 testable patterns navigation patterns detected. Limited navigation support. Consider adding breadcrumbs, search, and skip link.
D
Lighthouse Accessibility Audits
Action
Score 64/100 — 8 failing, 17 passed
FIX
64

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
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
Texto completo div.slItem > div.container-pandemic-card-lts > p.card-full > a.ng-binding
Texto completo div.slItem > div.container-pandemic-card-lts > p.card-full > a.ng-binding
Texto completo div.slItem > div.container-pandemic-card-lts > p.card-full > a.ng-binding
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
Buttons have an accessible name
`[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
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.
B
Landmark Structure
5 landmarks
REVIEW
5 landmarks
Info::
<main> landmark present
Warning::
No <nav> landmark found
Info::
No banner (header) landmark
Warning::
Skip navigation link is missing (WCAG 2.4.1)
Add a skip link as the first focusable element so keyboard users can bypass repeated navigation.
Page Structure — as a screen reader sees it
BANNER (missing!) MAIN CONTENTINFO footer

Add a skip link as the first focusable element so keyboard users can bypass repeated navigation.

Why this matters

Without a skip-nav link, keyboard users tab through every nav item before reaching content — every page, every visit.

Learn more

WCAG 2.4.1 (Bypass Blocks) requires a mechanism to skip past repeated content. The standard implementation is a 'Skip to main content' link that's the first focusable element, visually hidden until focused. Three lines of HTML + four of CSS.

Source: WCAG 2.1 SC 2.4.1

B
Heading Hierarchy
44 headings
REVIEW
44 headings
Critical::
No H1 heading found
Every page should have one H1 that describes the page content.
  • H4 Buscar en redalyc
  • H4 Navegación por tema
  • H4 COVID-19 y salud mental docente: Diferencias en torno al sexo y el rol de cuidador(a)
  • H4 Impacto del empleo informal en los rendimientos de la educación superior por el COVID-19 en México
  • H4 Resiliencia y vulnerabilidad económicas durante el coronavirus
  • H4 Black Swan Event and The Stock Market Volatility Response to Shocks in Developed, Emerging, Frontier and the BRIC Markets: Lessons from the COVID-19 Pandemic
  • H4 Performance of Equity Mutual Funds considering ESG investments, Financial Constraints, and the COVID-19 Pandemic
  • H4 Educación remota durante la emergencia por COVID-19. Análisis de la experiencia de los estudiantes universitarios
  • H4 Severidad de la colecistitis aguda en tiempos de COVID-19: ¿mito o realidad?
  • H4 Estudo comparativo de zumbido e aptidão cardiorrespiratória entre pessoas pós-COVID-19
  • H4 Entre el aislamiento y las brechas digitales: sistematización de experiencia de acompañamiento socioemocional en personas mayores de Temuco, Chile, en tiempos de COVID-19
  • H4 Resignificación de los vínculos sociales durante la pandemia de COVID-19: narrativas de personas que convergen en Conjuntos residenciales en Bogotá, Colombia
  • H4 Dimensiones de los estilos de vida saludable durante el confinamiento por COVID-19 en población mexicana
  • H4 A importância da educação em saúde para o retorno das aulas presenciais de adolescentes em tempos de pandemia pela COVID-19: uma revisão de literatura
  • H4 Reasons for the use of masks in open areas after the Peruvian government announced that it will no longer be mandatory in the context of COVID-19 in 2022
  • H4 Percepción sobre la vacuna COVID-19 y su efecto en la cobertura de vacunación regular de pueblos indígenas del Departamento de Presidente Hayes, Paraguay
  • H4 A vacinação contra SARS-CoV-2 afeta o efeito imediato da toxina botulínica? Primeiras impressões
  • H4 Automedicación por síntomas de COVID-19 en internos rotativos de Enfermería
  • H4 Impacto de la COVID-19 en el área de Odontología
  • H4 OS DESAFIOS IMPOSTOS PELA PANDEMIA COVID-19: DAS MEDIDAS DE PROTEÇÃO DO DIREITO À SAÚDE AOS IMPACTOS NA SAÚDE MENTAL
  • H4 A SOLIDARIEDADE COMO FUNDAMENTO PARA O ENFRENTAMENTO DO COVID-19 NA UNIÃO EUROPEIA
  • H4 Validación del CESQT en trabajadores colombianos: Un estudio psicométrico en tiempos de COVID-19
  • H4 Post-COVID-19 metabolic syndrome: a new challenge for nursing care
  • H4 Impact of COVID-19 on lifestyles related etiquette among nursing staff in India: a cross sectional descriptive e-survey
  • H4 Impact of the COVID-19 pandemic on the nursing students' education in a public university in Colombia
  • H4 Ethics and Responsibility in Facing COVID-19 in the Context of Brazilian Public Agents
  • H4 Effectiveness evaluation of online Mindfulness in mental health and alcohol consumption in medical students during the COVID-19 pandemic
  • H4 Association between physical activity and affects in college students during the COVID-19 pandemic: A cross-sectional study
  • H4 An assessment of mental health of Mexican and Colombian medical students during the COVID-19 pandemic
  • H4 Resilience, adverse childhood experiences, and mental health in Health Science students during the COVID-19 pandemic
  • H4 Social Representations of COVID-19 Among Brazilian Elderly Women: A Structural Approach
  • H4 Early warning scores to identify the risk of clinical worsening or death in patients hospitalized for COVID-19
  • H2 Servicios
  • H2 Producción científica de instituciones y países
  • H2 Producción por país
  • H2 Producción por institución
  • H2 Profesionalización editorial
  • H2 Indicadores Redalyc
  • H2 Linked Open Data
  • H3 Nueva búsqueda de artículos por DOI en redalyc.org
  • H3 Conoce el nuevo consejo científico asesor.
  • H3 Periodo 2021-2023
  • H2 Reconocimientos
  • H2 Nuestros aliados y amigos

Every page should have one H1 that describes the page content.

Why this matters

No H1 means screen-reader users can't identify the page's primary topic, and Google's content-extraction degrades.

Learn more

The H1 is the document title for assistive tech and a strong signal to search engines about page topic. Pages without one force screen readers to fall back to the <title> attribute or page chrome. Add a single H1 that names the page's primary subject.

Source: WCAG 2.4.6 / Google Search Central

C
Color Contrast (Screenshot)
Action
20 text elements analyzed, 6 fail WCAG AA
REVIEW

Analyzes text contrast against the actual rendered page, including background images, gradients, and overlays that CSS-based tools cannot detect.

14 pass 6 fail WCAG AA 2 pass AA only
span Red de revistas científicas de Acceso A…
3.37:1
#000000
on
#7F5656
needs 4.5:1 (normal text)
16px · top of page (header area) · over background image/gradient
span Infraestructura abierta no comercial pro…
2.06:1
#000000
on
#7F1919
needs 4.5:1 (normal text)
16px · top of page (header area)
span Acerca de Redalyc
2.06:1
#000000
on
#7F1919
needs 4.5:1 (normal text)
16px · above the fold
span Principios y valores
2.01:1
#000000
on
#3B4045
needs 4.5:1 (normal text)
16px · above the fold
span Tecnología de publicación digital (XML…
2.42:1
#000000
on
#474C51
needs 4.5:1 (normal text)
16px · above the fold · over background image/gradient
span Indexación de revistas
3.16:1
#000000
on
#585D62
needs 4.5:1 (normal text)
16px · above the fold

2 contrast failures on background images/gradients

These failures are invisible to CSS-based accessibility tools like Lighthouse. The text may be fine on a solid background, but fails when rendered over an image or gradient.

Show all checked elements (20)
ElementRatioRequiredFGBGResult
h2 Servicios5.24:13.0:1
#000000
#7F7F7F
Pass
h2 Producción científ…5.24:13.0:1
#000000
#7F7F7F
Pass
h2 Producción por paí…5.24:13.0:1
#000000
#7F7F7F
Pass
h2 Producción por inst…5.24:13.0:1
#000000
#7F7F7F
Pass
h2 Profesionalización …5.24:13.0:1
#000000
#7F7F7F
Pass
h2 Indicadores Redalyc5.24:13.0:1
#000000
#7F7F7F
Pass
h2 Linked Open Data5.24:13.0:1
#000000
#7F7F7F
Pass
h2 Reconocimientos5.24:13.0:1
#000000
#7F7F7F
Pass
h2 Nuestros aliados y a…5.24:13.0:1
#000000
#7F7F7F
Pass
h3 Nueva búsqueda de a…5.24:13.0:1
#000000
#7F7F7F
Pass
h3 Conoce el nuevo cons…5.24:13.0:1
#000000
#7F7F7F
Pass
h3 Periodo 2021-20235.24:13.0:1
#000000
#7F7F7F
Pass
title Sistema de Informaci…5.24:14.5:1
#000000
#7F7F7F
Pass
span Sistema de Informaci…5.24:14.5:1
#000000
#7F7F7F
Pass
span Red de revistas cien…3.37:14.5:1
#000000
#7F5656
Fail
span Infraestructura abie…2.06:14.5:1
#000000
#7F1919
Fail
span Acerca de Redalyc2.06:14.5:1
#000000
#7F1919
Fail
span Principios y valores2.01:14.5:1
#000000
#3B4045
Fail
span Tecnología de publi…2.42:14.5:1
#000000
#474C51
Fail
span Indexación de revis…3.16:14.5:1
#000000
#585D62
Fail

Methodology: The top 20 text elements by font size were checked. Background color was sampled from the desktop screenshot using a 5-point pattern. WCAG 2.1 AA requires 4.5:1 for normal text and 3:1 for large text.

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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