Lighthouse Mobile

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

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.

Request	Cache TTL	Transfer Size
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.6 KiB
www.omicsonline.org/assets/css/styles.css	86400.0 s	84.8 KiB
/signals/config/297919997051754?v=2.9.303&r=stable&domain...	1200.0 s	23.8 KiB
/pagead/managed/js/adsense/m202604170101/show_ads_impl_fy...	1209600.0 s	177.5 KiB
www.omicsonline.org/images/banner_bg.jpg	86400.0 s	29.0 KiB
www.omicsonline.org/images/flags.png	86400.0 s	27.9 KiB
www.omicsonline.org/assets/css/global.css	86400.0 s	25.7 KiB
www.omicsonline.org/assets/css/omicsonline.org.css	86400.0 s	24.7 KiB
www.omicsonline.org/images/img_tetimonial_6.png	86400.0 s	20.2 KiB
www.omicsonline.org/images/img_tetimonial_4.png	86400.0 s	19.3 KiB
www.omicsonline.org/images/slider_mobile.png	86400.0 s	18.1 KiB
www.omicsonline.org/images/img_tetimonial_7.png	86400.0 s	17.9 KiB
www.omicsonline.org/images/img_tetimonial_5.png	86400.0 s	17.3 KiB
www.omicsonline.org/images/img_tetimonial_8.png	86400.0 s	14.8 KiB
www.omicsonline.org/assets/slick/slick.min.js	86400.0 s	11.7 KiB
/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader...	2871.0 s	4.5 KiB
www.omicsonline.org/images/icon_Scientific-Alliance.png	86400.0 s	6.4 KiB
www.omicsonline.org/images/icon_ys_award.png	86400.0 s	6.3 KiB
www.omicsonline.org/images/icon_scholar.png	86400.0 s	5.5 KiB
www.omicsonline.org/images/icon_open_access_journals.png	86400.0 s	5.1 KiB
www.omicsonline.org/images/icon_sc_alliances.png	86400.0 s	5.0 KiB
www.omicsonline.org/assets/slick/ajax-loader.gif	86400.0 s	4.6 KiB
www.omicsonline.org/assets/mCustomScrollbar/jquery.mCustomScrollbar.min.css	86400.0 s	4.2 KiB
www.omicsonline.org/images/clmj_container_bg.png	86400.0 s	4.2 KiB
www.omicsonline.org/images/icon_Scientific-Conferences.png	86400.0 s	4.2 KiB
www.omicsonline.org/imges/flags/russia.png	86400.0 s	3.9 KiB
www.omicsonline.org/assets/js/jquery.matchHeight.js	86400.0 s	3.7 KiB
www.omicsonline.org/images/wraper_bg.png	86400.0 s	3.5 KiB
www.omicsonline.org/css/bootstrap-social.css	86400.0 s	2.8 KiB
www.omicsonline.org/js/jquery.coolautosuggest.js	86400.0 s	2.3 KiB
www.omicsonline.org/js/jquery.bootpag.min.js	86400.0 s	1.8 KiB
www.omicsonline.org/assets/js/scroll-to-top.js	86400.0 s	1.6 KiB
www.omicsonline.org/assets/slick/slick-theme.css	86400.0 s	1.3 KiB
www.omicsonline.org/images/innerpage_bg.jpg	86400.0 s	1.2 KiB
www.omicsonline.org/imges/flags/portugal.png	86400.0 s	1.2 KiB
www.omicsonline.org/js/grids.min.js	86400.0 s	1.2 KiB
www.omicsonline.org/assets/css/author.css	86400.0 s	1.1 KiB
www.omicsonline.org/imges/flags/spain.png	86400.0 s	1013 B
www.omicsonline.org/assets/slick/slick.css	86400.0 s	916 B
www.omicsonline.org/assets/img/cd-top-arrow.svg	86400.0 s	896 B
www.omicsonline.org/js/jquery.coolfieldset.js	86400.0 s	862 B
www.omicsonline.org/css/main-coolautosuggest.css	86400.0 s	746 B
www.omicsonline.org/imges/flags/india.png	86400.0 s	737 B
www.omicsonline.org/imges/flags/china.png	86400.0 s	727 B
www.omicsonline.org/imges/flags/japan.png	86400.0 s	699 B
www.omicsonline.org/images/header_bg_pattern.png	86400.0 s	630 B
www.omicsonline.org/imges/flags/germany.png	86400.0 s	482 B
www.omicsonline.org/imges/flags/france.png	86400.0 s	482 B
/tr/?id=297919997051754&ev=PageView&dl=https%3A%2F%2Fwww....	0.0 ms	16 B

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.

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.

URL	Est Savings
cdnjs.cloudflare.com/ajax/libs/font-awesome/5.11.2/webfonts/fa-brands-400.woff2	85 ms
cdnjs.cloudflare.com/ajax/libs/font-awesome/5.11.2/webfonts/fa-regular-400.woff2	85 ms
cdnjs.cloudflare.com/ajax/libs/font-awesome/5.11.2/webfonts/fa-solid-900.woff2	70 ms
/s/roboto/v51/KFO5CnqEu92Fr1Mu53ZEC9_Vu3r1gIhOszmkBnkaSTb...	45 ms
/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu...	40 ms
fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	40 ms
/s/opensans/v40/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu...	35 ms
/s/opensans/v40/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu...	35 ms
/s/opensans/v40/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu...	30 ms
/s/roboto/v48/KFOMCnqEu92Fr1ME7kSn66aGLdTylUAMQXC89YmC2DP...	25 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:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:39.397 source:map[type:text value:[unattributed]]]]

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-SECTION

nodeLabel: Omicsonline | slider_mobile

path: 1,HTML,1,BODY,6,SECTION

selector: body > section.banner_area

snippet: <section class="banner_area">

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

value: no origins were preconnected

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.

URL	Transfer Size	Duration
/css?family=Lato:100,100i,300,300i,400,400i,700,700i,900,...	4.2 KiB	839 ms
fonts.googleapis.com/css?family=Ubuntu:300,300i,400,400i,500,500i,700,700i	1.4 KiB	178 ms
cdnjs.cloudflare.com/ajax/libs/animate.css/3.7.0/animate.min.css	4.1 KiB	831 ms
/ajax/libs/bootstrap-select/1.12.1/css/bootstrap-select.m...	1.9 KiB	831 ms
cdnjs.cloudflare.com/ajax/libs/font-awesome/5.11.2/css/all.min.css	10.4 KiB	1.0 s
www.omicsonline.org/assets/css/global.css	25.7 KiB	753 ms
www.omicsonline.org/assets/css/omicsonline.org.css	24.7 KiB	753 ms
www.omicsonline.org/css/bootstrap-social.css	2.8 KiB
www.omicsonline.org/assets/css/styles.css	84.8 KiB	1.7 s
www.omicsonline.org/assets/mCustomScrollbar/jquery.mCustomScrollbar.min.css	4.2 KiB
www.omicsonline.org/assets/slick/slick-theme.css	1.3 KiB
www.omicsonline.org/assets/slick/slick.css	916 B
www.omicsonline.org/assets/css/author.css	1.1 KiB	151 ms
www.omicsonline.org/css/main-coolautosuggest.css	746 B

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.

	URL	Resource Size	Est Savings
Omicsonline \| slider_mobile `div.container > div.row > div.col-12 > img.img-responsive`	www.omicsonline.org/images/slider_mobile.png	17.7 KiB	7.7 KiB

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

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.1 s

URL	Time Spent
omicsonline.org/	1.1 s
www.omicsonline.org/	0.0 ms

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

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: 150 ms 8.6 KiB

URL	Transfer Size	Est Savings
www.omicsonline.org/assets/css/omicsonline.org.css	24.7 KiB	4.6 KiB
www.omicsonline.org/assets/css/global.css	25.7 KiB	3.9 KiB

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: 1.4 s 141.0 KiB

URL	Transfer Size	Est Savings
www.omicsonline.org/assets/css/styles.css	84.5 KiB	79.2 KiB
www.omicsonline.org/assets/css/global.css	25.4 KiB	24.7 KiB
www.omicsonline.org/assets/css/omicsonline.org.css	24.4 KiB	23.0 KiB
.fc-consent-root .fc-dialog-container.fc-fullscreen { height: 100% !important; … } …	16.3 KiB	14.1 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.

URL	Total CPU Time	Script Evaluation	Script Parse
www.omicsonline.org/	1.2 s	6.8 ms	0.6 ms
Unattributable	388 ms	16 ms	0.0 ms
/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader...	350 ms	246 ms	7.4 ms
/f/AGSKWxW3RAnn9mA72zrlWUMKQq6SLMcfp1V01atnr0Zb10TJ_WF2sj...	249 ms	136 ms	36 ms
www.googletagmanager.com/gtag/js?id=G-VWFV1HF267	246 ms	204 ms	40 ms
/i/ca-pub-8046643215361735?href=https%3A%2F%2Fwww.omicson...	215 ms	191 ms	21 ms
/pagead/managed/js/adsense/m202604170101/show_ads_impl_fy...	155 ms	103 ms	49 ms
connect.facebook.net/en_US/fbevents.js	126 ms	96 ms	29 ms
/pagead/js/adsbygoogle.js?client=ca-pub-8046643215361735	90 ms	76 ms	13 ms
/signals/config/297919997051754?v=2.9.303&r=stable&domain...	61 ms	52 ms	8.0 ms
ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js	50 ms	37 ms	10 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.

Category	Time Spent
Script Evaluation	1.2 s
Style & Layout	880 ms
Other	678 ms
Script Parsing & Compilation	244 ms
Parse HTML & CSS	147 ms
Rendering	146 ms

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: 0.0 ms 338.6 KiB

URL	Transfer Size	Est Savings
/pagead/managed/js/adsense/m202604170101/show_ads_impl_fy...	177.5 KiB	148.6 KiB
www.googletagmanager.com/gtag/js?id=G-VWFV1HF267	163.5 KiB	66.1 KiB
connect.facebook.net/en_US/fbevents.js	96.5 KiB	37.0 KiB
/i/ca-pub-8046643215361735?href=https%3A%2F%2Fwww.omicson...	68.8 KiB	36.0 KiB
/pagead/js/adsbygoogle.js?client=ca-pub-8046643215361735	54.3 KiB	28.3 KiB
ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js	30.1 KiB	22.6 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
Omicsonline \| slider_mobile `div.container > div.row > div.col-12 > img.img-responsive`	www.omicsonline.org/images/slider_mobile.png
Omicsonline \| Open Access Journals `div.col-12 > div.card > div.card-body > img.img-fluid`	www.omicsonline.org/images/icon_open_access_journals.png
Omicsonline \| Scientific Conferences `div.col-12 > div.card > div.card-body > img.img-fluid`	www.omicsonline.org/images/icon_Scientific-Conferences.png
Omicsonline \| Scientific Alliance `div.col-12 > div.card > div.card-body > img.img-fluid`	www.omicsonline.org/images/icon_Scientific-Alliance.png
Omicsonline \| Scholars Central `div.slick-list > div.slick-track > a.nav-link > img.img-fluid`	www.omicsonline.org/images/icon_scholar.png
Omicsonline \| Young Scientist Awards `div.slick-list > div.slick-track > a.nav-link > img.img-fluid`	www.omicsonline.org/images/icon_ys_award.png
Omicsonline \| Scientific Alliances `div.slick-list > div.slick-track > a.nav-link > img.img-fluid`	www.omicsonline.org/images/icon_sc_alliances.png
Omicsonline \| Scholars Central `div.slick-list > div.slick-track > a.nav-link > img.img-fluid`	www.omicsonline.org/images/icon_scholar.png
Omicsonline \| Young Scientist Awards `div.slick-list > div.slick-track > a.nav-link > img.img-fluid`	www.omicsonline.org/images/icon_ys_award.png
Omicsonline \| Scientific Alliances `div.slick-list > div.slick-track > a.nav-link > img.img-fluid`	www.omicsonline.org/images/icon_sc_alliances.png
Omicsonline \| Scholars Central `div.slick-list > div.slick-track > a.nav-link > img.img-fluid`	www.omicsonline.org/images/icon_scholar.png
Omicsonline \| Young Scientist Awards `div.slick-list > div.slick-track > a.nav-link > img.img-fluid`	www.omicsonline.org/images/icon_ys_award.png

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

●Layout shift culprits

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify JavaScript

●Avoids enormous network payloads Total size was 1,555 KiB

●User Timing marks and measures 5 user timings

●Avoid long main-thread tasks 13 long tasks found

●Avoid non-composited animations 7 animated elements found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 30 ms

●Server Backend Latencies 280 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 360 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

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
Language `div.container > div.row > div.nav-item > a#multi_lang`
Open Access Journals `div.col-12 > div.card > div.card-body > h3.text-warning`
Read More `div.col-12 > div.card > div.card-body > a.btn`
Scientific Conferences `div.col-12 > div.card > div.card-body > h3.text-warning`
Read More `div.col-12 > div.card > div.card-body > a.btn`
Scientific Alliance `div.col-12 > div.card > div.card-body > h3.text-warning`
Read More `div.col-12 > div.card > div.card-body > a.btn`
Article Processing Charges `div.row > div.col-12 > nav.nav > a.nav-item`
Journal Impact Factor `div.row > div.col-12 > nav.nav > a.nav-item`
Peer Review Process `div.row > div.col-12 > nav.nav > a.nav-item`
Journals by Subject `div.row > div.col-12 > div.card > h6.card-header`
Clinical & Medical Journals `div.row > div.col-12 > div.card > h6.card-header`
Conferences By Continents `div.row > div.col-12 > div.card > h6.card-header`
Continents `div.col-12 > div.card > h6.card-header > strong`
Medical & Clinical Conferences `div.row > div.col-12 > div.card > h6.card-header`
Medical & Clinical `div.col-12 > div.card > h6.card-header > strong`
Conferences by Subject `div.row > div.col-12 > div.card > h6.card-header`
Subject `div.col-12 > div.card > h6.card-header > strong`
Latest Research Reports `div.row > div.col-12 > div.card > h6.card-header`
Journal of Materials Science and Nanomaterials `div.media-body > div.row > div.col-12 > a.badge`
Journal of Materials Science and Nanomaterials `div.media-body > div.row > div.col-12 > a.badge`
Journal of Materials Science and Nanomaterials `div.media-body > div.row > div.col-12 > a.badge`
Journal of Materials Science and Nanomaterials `div.media-body > div.row > div.col-12 > a.badge`
Journal of Materials Science and Nanomaterials `div.media-body > div.row > div.col-12 > a.badge`
Journal of Materials Science and Nanomaterials `div.media-body > div.row > div.col-12 > a.badge`
Journal of Materials Science and Nanomaterials `div.media-body > div.row > div.col-12 > a.badge`
Quick links `div.row > div.col-12 > div.card > h6.card-header`
New Initiatives `div.row > div.col-12 > div.card > h6.card-header`
Learn more `div.fc-dialog-content > div.fc-dialog-scrollable-content > button.fc-faq-header > span.fc-faq-label`
List of partners. `div.fc-dialog-scrollable-content > div.fc-footer > p > a.fc-vendors-list-dialog`

These are opportunities to improve the legibility of your content.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Journals by Subject `div.row > div.col-12 > div.card > h6.card-header`

These are opportunities to improve keyboard navigation in your application.

Names and labels

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
`body > nav.navbar > div.container-fluid > a.navbar-brand`

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
Business & Management `div.col-md-6 > ul.list-inline > li > a`
Chemical Engineering `div.col-md-6 > ul.list-inline > li > a`
Clinical Sciences `div.col-md-6 > ul.list-inline > li > a`
Computer Science `div.col-md-6 > ul.list-inline > li > a`
Food & Nutrition `div.col-md-6 > ul.list-inline > li > a`
General Science `div.col-md-6 > ul.list-inline > li > a`
Medical Sciences `div.col-md-6 > ul.list-inline > li > a`
Nanotechnology `div.col-md-6 > ul.list-inline > li > a`
Nursing & Health Care `div.col-md-6 > ul.list-inline > li > a`
Pharmaceutical Sciences `div.col-md-6 > ul.list-inline > li > a`
Haematology `div.col-md-6 > ul.list-inline > li > a`
Healthcare `div.col-md-6 > ul.list-inline > li > a`
Immunology `div.col-md-6 > ul.list-inline > li > a`
Neurology `div.col-md-6 > ul.list-inline > li > a`
Nursing `div.col-md-6 > ul.list-inline > li > a`
Nutrition `div.col-md-6 > ul.list-inline > li > a`
Oncology `div.col-md-6 > ul.list-inline > li > a`
Ophthalmology `div.col-md-6 > ul.list-inline > li > a`
Orthopaedics `div.col-md-6 > ul.list-inline > li > a`
Pathology `div.col-md-6 > ul.list-inline > li > a`
Pediatrics `div.col-md-6 > ul.list-inline > li > a`
Psychiatry `div.col-md-6 > ul.list-inline > li > a`
Pulmonology `div.col-md-6 > ul.list-inline > li > a`
Surgery `div.col-md-6 > ul.list-inline > li > a`
Toxicology `div.col-md-6 > ul.list-inline > li > a`
Previous `div.card > div.card-footer > nav.nav > button.slick-prev`
Next `div.card > div.card-footer > nav.nav > button.slick-next`

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

●Image elements have `[alt]` attributes

●`[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

●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links are distinguishable without relying on color.

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●No element has a `[tabindex]` value greater than 0

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Uses ARIA roles only on compatible elements

●Identical links have the same purpose.

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements 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 an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○Form elements have associated labels

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○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.

○Image elements do not have `[alt]` attributes that are redundant text.

○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.

Best Practices

User Experience

Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Displayed size	Actual size	Expected size
Omicsonline \| slider_mobile `div.container > div.row > div.col-12 > img.img-responsive`	www.omicsonline.org/images/slider_mobile.png	227 x 272	227 x 272	341 x 408

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
AttributionReporting	connect.facebook.net/en_US/fbevents.js line 279, col 769

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.

Source	Description
d31qbv1cthcecs.cloudfront.net/atrk.js	`Failed to load resource: net::ERR_NAME_NOT_RESOLVED`

●Uses HTTPS

●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

●Displays images with correct aspect ratio

●Page has the HTML doctype

●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

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

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.

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destination	Link Text
www.omicsonline.org/open-access-journals-list.php	Read More
www.conferenceseries.com/	Read More
/international-societies-world-fedarations-scientific-ass...	Read More
www.omicsonline.org/latest-research-reports.php	Read More

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 are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`