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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

55

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
www.pdn.ac.lk/assets/pgims1-BoMC2-E-.png0.0 ms25.2 MiB
www.pdn.ac.lk/assets/veternery-lOuZy_gg.png0.0 ms18.0 MiB
www.pdn.ac.lk/dashboard/function/uploads/Flyer_DMD_25.jpg0.0 ms15.8 MiB
www.pdn.ac.lk/assets/index-BpTvxTJs.js0.0 ms9.6 MiB
www.pdn.ac.lk/assets/external-BYXKn1n_.jpg0.0 ms7.7 MiB
www.pdn.ac.lk/assets/eng-WIYWjtli.jpg0.0 ms3.6 MiB
www.pdn.ac.lk/assets/dental-DqLNlY46.jpg0.0 ms3.1 MiB
www.pdn.ac.lk/dashboard/function/uploads/LH-advertisement.png0.0 ms1.9 MiB
www.pdn.ac.lk/dashboard/function/uploads/English.png0.0 ms1.6 MiB
www.pdn.ac.lk/dashboard/function/uploads/MPH.png0.0 ms1.4 MiB
www.pdn.ac.lk/dashboard/function/uploads/ESS.png0.0 ms1.3 MiB
www.pdn.ac.lk/dashboard/function/uploads/ICPC.png0.0 ms1.3 MiB
www.pdn.ac.lk/dashboard/function/uploads/course-1786097871756-309055806.jpg0.0 ms1.0 MiB
www.pdn.ac.lk/dashboard/function/uploads/pera_msc_first.jpg0.0 ms919.4 KiB
www.pdn.ac.lk/assets/diploma4-BwgS0Lma.png0.0 ms847.4 KiB
www.pdn.ac.lk/dashboard/function/uploads/adv_2627.png0.0 ms726.6 KiB
/dashboard/function/uploads/609065966_1293749152789478_70...0.0 ms583.5 KiB
www.pdn.ac.lk/dashboard/function/uploads/Web.jpg0.0 ms551.0 KiB
/dashboard/function/uploads/602936563_1313593504138376_75...0.0 ms540.8 KiB
www.pdn.ac.lk/dashboard/function/uploads/Ranking.jpg0.0 ms536.1 KiB
www.pdn.ac.lk/dashboard/function/uploads/L1.jpg0.0 ms532.1 KiB
www.pdn.ac.lk/dashboard/function/uploads/eccpd_1.jpg0.0 ms461.4 KiB
www.pdn.ac.lk/dashboard/function/uploads/Convocation.jpg0.0 ms448.6 KiB
/dashboard/function/uploads/615202030_1378061250687330_89...0.0 ms401.5 KiB
www.pdn.ac.lk/dashboard/function/uploads/ipurse-banner.jpg0.0 ms332.9 KiB
www.pdn.ac.lk/assets/pgihs-D9RmwPts.jpg0.0 ms295.6 KiB
www.pdn.ac.lk/assets/ahs-DzjaoeLq.jpg0.0 ms291.4 KiB
www.pdn.ac.lk/dashboard/function/uploads/ad_2026.jpeg0.0 ms233.3 KiB
www.pdn.ac.lk/assets/scw-BB3MVcdq.jpg0.0 ms220.0 KiB
www.pdn.ac.lk/dashboard/function/uploads/Arts.jpg0.0 ms189.0 KiB
www.pdn.ac.lk/dashboard/function/uploads/Tennis_Team.jpg0.0 ms160.5 KiB
www.pdn.ac.lk/assets/cert4-CuanwzNS.jpg0.0 ms149.0 KiB
www.pdn.ac.lk/assets/logo-Dx2RUCSi.png0.0 ms140.7 KiB
www.pdn.ac.lk/dashboard/function/uploads/flement.png0.0 ms138.9 KiB
www.pdn.ac.lk/assets/mgt1-DMw4s-Ze.jpg0.0 ms97.9 KiB
/dashboard/function/uploads/594960961_1451339403659959_57...0.0 ms70.5 KiB
www.pdn.ac.lk/assets/text-5AOTzhFK.png0.0 ms69.5 KiB
www.pdn.ac.lk/assets/uoplogo-DRtZaWAf.png0.0 ms68.5 KiB
www.pdn.ac.lk/dashboard/function/uploads/r3.jpg0.0 ms67.8 KiB
www.pdn.ac.lk/assets/pgis-TULitz-4.jpg0.0 ms63.2 KiB
www.pdn.ac.lk/dashboard/function/uploads/Research2.jpg0.0 ms63.2 KiB
www.pdn.ac.lk/assets/pgia-jTxaOkGP.jpg0.0 ms50.3 KiB
www.pdn.ac.lk/dashboard/function/uploads/dissaster.jpg0.0 ms49.1 KiB
www.pdn.ac.lk/dashboard/function/uploads/NCPA.jpg0.0 ms45.3 KiB
www.pdn.ac.lk/dashboard/function/uploads/r2.jpg0.0 ms44.1 KiB
www.pdn.ac.lk/dashboard/function/uploads/R1.jpg0.0 ms27.4 KiB
www.pdn.ac.lk/assets/index-Mijw4ZQf.css0.0 ms19.8 KiB
i.ytimg.com/vi/gMf9lW1hJpE/default.jpg300.0 s2.7 KiB
i.ytimg.com/vi/UvVCRV_cPnw/default.jpg7200.0 s3.3 KiB
i.ytimg.com/vi/UqsxpRUJySM/default.jpg7200.0 s3.1 KiB
i.ytimg.com/vi/YNahHAelNcw/default.jpg7200.0 s2.8 KiB
static.doubleclick.net/instream/ad_status.js900.0 s495 B
static.doubleclick.net/instream/ad_status.js900.0 s0 B
static.doubleclick.net/instream/ad_status.js900.0 s0 B
static.doubleclick.net/instream/ad_status.js900.0 s0 B

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.woff255 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff240 ms

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:497.673 label:Time to first byte subpart:timeToFirstByte] map[duration:3199.797 label:Element render delay subpart:elementRenderDelay]]

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
www.pdn.ac.lk/http/1.1
www.pdn.ac.lk/assets/index-BpTvxTJs.jshttp/1.1
www.pdn.ac.lk/assets/index-Mijw4ZQf.csshttp/1.1
www.pdn.ac.lk/assets/logo-Dx2RUCSi.pnghttp/1.1
www.pdn.ac.lk/assets/text-5AOTzhFK.pnghttp/1.1
www.pdn.ac.lk/assets/uoplogo-DRtZaWAf.pnghttp/1.1
www.pdn.ac.lk/assets/external-BYXKn1n_.jpghttp/1.1
www.pdn.ac.lk/assets/diploma4-BwgS0Lma.pnghttp/1.1
www.pdn.ac.lk/assets/cert4-CuanwzNS.jpghttp/1.1
www.pdn.ac.lk/assets/scw-BB3MVcdq.jpghttp/1.1
www.pdn.ac.lk/assets/pgia-jTxaOkGP.jpghttp/1.1
www.pdn.ac.lk/assets/pgis-TULitz-4.jpghttp/1.1
www.pdn.ac.lk/assets/pgihs-D9RmwPts.jpghttp/1.1
www.pdn.ac.lk/assets/pgims1-BoMC2-E-.pnghttp/1.1
www.pdn.ac.lk/assets/ahs-DzjaoeLq.jpghttp/1.1
www.pdn.ac.lk/assets/dental-DqLNlY46.jpghttp/1.1
www.pdn.ac.lk/assets/eng-WIYWjtli.jpghttp/1.1
www.pdn.ac.lk/assets/mgt1-DMw4s-Ze.jpghttp/1.1
www.pdn.ac.lk/assets/veternery-lOuZy_gg.pnghttp/1.1
www.pdn.ac.lk/dashboard/function/homeimge.php?action=getallImageshttp/1.1
www.pdn.ac.lk/dashboard/function/event.php?action=getallEventshttp/1.1
www.pdn.ac.lk/dashboard/function/programsilder.php?action=getallImageshttp/1.1
www.pdn.ac.lk/dashboard/function/research.php?action=getResearchhttp/1.1
www.pdn.ac.lk/dashboard/function/research.php?action=getResearchHeightlighthttp/1.1
www.pdn.ac.lk/dashboard/function/video.php?action=getallvideoshttp/1.1
www.pdn.ac.lk/dashboard/function/statistics.php?action=getStatisticshttp/1.1
www.pdn.ac.lk/logouop.pnghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/Convocation.jpghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/Arts.jpghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/Web.jpghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/Tennis_Team.jpghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/Ranking.jpghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/ipurse-banner.jpghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/ESS.pnghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/MPH.pnghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/Flyer_DMD_25.jpghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/English.pnghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/eccpd_1.jpghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/ICPC.pnghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/L1.jpghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/dissaster.jpghttp/1.1
/dashboard/function/uploads/594960961_1451339403659959_57...http/1.1
/dashboard/function/uploads/615202030_1378061250687330_89...http/1.1
/dashboard/function/uploads/609065966_1293749152789478_70...http/1.1
www.pdn.ac.lk/dashboard/function/uploads/adv_2627.pnghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/pera_msc_first.jpghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/ad_2026.jpeghttp/1.1
/dashboard/function/uploads/602936563_1313593504138376_75...http/1.1
www.pdn.ac.lk/dashboard/function/uploads/LH-advertisement.pnghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/course-1786097871756-309055806.jpghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/R1.jpghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/Research2.jpghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/flement.pnghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/r2.jpghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/r3.jpghttp/1.1
www.pdn.ac.lk/dashboard/function/uploads/NCPA.jpghttp/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
www.pdn.ac.lk/assets/index-Mijw4ZQf.css19.8 KiB620 ms
translate.google.com/translate_a/element.js?cb=googleTranslateElementInit1.4 KiB826 ms

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
div.mb-10 > div.grid > div.flex > div.bg-center div.mb-10 > div.grid > div.flex > div.bg-center
www.pdn.ac.lk/assets/pgims1-BoMC2-E-.png25.2 MiB21.1 MiB
Event 14 div.flex > div.flex-shrink-0 > button.w-full > img.w-full
www.pdn.ac.lk/dashboard/function/uploads/Flyer_DMD_25.jpg15.8 MiB15.8 MiB
div.mb-10 > div.grid > div.flex > div.bg-center div.mb-10 > div.grid > div.flex > div.bg-center
www.pdn.ac.lk/assets/veternery-lOuZy_gg.png18.0 MiB13.9 MiB
div.mb-10 > div.grid > div.flex > div.bg-center div.mb-10 > div.grid > div.flex > div.bg-center
www.pdn.ac.lk/assets/external-BYXKn1n_.jpg7.7 MiB4.6 MiB
div.mb-10 > div.grid > div.flex > div.bg-center div.mb-10 > div.grid > div.flex > div.bg-center
www.pdn.ac.lk/assets/eng-WIYWjtli.jpg3.6 MiB3.2 MiB
div.mb-10 > div.grid > div.flex > div.bg-center div.mb-10 > div.grid > div.flex > div.bg-center
www.pdn.ac.lk/assets/dental-DqLNlY46.jpg3.1 MiB1.9 MiB
Event 15 div.flex > div.flex-shrink-0 > button.w-full > img.w-full
www.pdn.ac.lk/dashboard/function/uploads/English.png1.6 MiB1.6 MiB
Event 12 div.flex > div.flex-shrink-0 > button.w-full > img.w-full
www.pdn.ac.lk/dashboard/function/uploads/MPH.png1.4 MiB1.3 MiB
Event 5 div.flex > div.flex-shrink-0 > button.w-full > img.w-full
www.pdn.ac.lk/dashboard/function/uploads/ESS.png1.3 MiB1.3 MiB
Event 17 div.flex > div.flex-shrink-0 > button.w-full > img.w-full
www.pdn.ac.lk/dashboard/function/uploads/ICPC.png1.3 MiB1.2 MiB
div.mb-10 > div.grid > div.flex > div.bg-center div.mb-10 > div.grid > div.flex > div.bg-center
www.pdn.ac.lk/assets/diploma4-BwgS0Lma.png847.1 KiB794.1 KiB
Cultural Show of the ICHIM Conference div.mt-10 > div.absolute > div.absolute > img.object-cover
www.pdn.ac.lk/dashboard/function/uploads/Web.jpg550.7 KiB519.4 KiB
Event 19 div.flex > div.flex-shrink-0 > button.w-full > img.w-full
www.pdn.ac.lk/dashboard/function/uploads/L1.jpg531.9 KiB514.7 KiB
University of Peradeniya Ranked No. 1 in Sri Lanka div.mt-10 > div.absolute > div.absolute > img.object-cover
www.pdn.ac.lk/dashboard/function/uploads/Ranking.jpg535.9 KiB467.0 KiB
Event 16 div.flex > div.flex-shrink-0 > button.w-full > img.w-full
www.pdn.ac.lk/dashboard/function/uploads/eccpd_1.jpg461.2 KiB444.2 KiB
Event 22 div.flex > div.flex-shrink-0 > button.w-full > img.w-full
/dashboard/function/uploads/615202030_1378061250687330_89...401.2 KiB386.0 KiB
General Convocation - 2025 div.mt-10 > div.absolute > div.absolute > img.object-cover
www.pdn.ac.lk/dashboard/function/uploads/Convocation.jpg448.3 KiB379.4 KiB
iPURSE 2026 div.mt-10 > div.absolute > div.absolute > img.object-cover
www.pdn.ac.lk/dashboard/function/uploads/ipurse-banner.jpg332.7 KiB263.7 KiB
div.mb-10 > div.grid > div.flex > div.bg-center div.mb-10 > div.grid > div.flex > div.bg-center
www.pdn.ac.lk/assets/ahs-DzjaoeLq.jpg291.1 KiB236.4 KiB
Welcome Ceremony for New Entrants div.mt-10 > div.absolute > div.absolute > img.object-cover
www.pdn.ac.lk/dashboard/function/uploads/Arts.jpg188.7 KiB157.4 KiB
Men's Tennis Championship to PERA div.mt-10 > div.absolute > div.absolute > img.object-cover
www.pdn.ac.lk/dashboard/function/uploads/Tennis_Team.jpg160.2 KiB129.0 KiB
div.mb-10 > div.grid > div.flex > div.bg-center div.mb-10 > div.grid > div.flex > div.bg-center
www.pdn.ac.lk/assets/cert4-CuanwzNS.jpg148.7 KiB81.0 KiB
UoP div.flex > div.xl:hidden > a > img.w-auto
www.pdn.ac.lk/assets/uoplogo-DRtZaWAf.png68.2 KiB67.0 KiB
Event 21 div.flex > div.flex-shrink-0 > button.w-full > img.w-full
/dashboard/function/uploads/594960961_1451339403659959_57...70.3 KiB53.3 KiB
div.mb-10 > div.grid > div.flex > div.bg-center div.mb-10 > div.grid > div.flex > div.bg-center
www.pdn.ac.lk/assets/mgt1-DMw4s-Ze.jpg97.6 KiB36.5 KiB
Event 20 div.flex > div.flex-shrink-0 > button.w-full > img.w-full
www.pdn.ac.lk/dashboard/function/uploads/dissaster.jpg48.8 KiB31.8 KiB
div > div.grid > div.relative > div.absolute div > div.grid > div.relative > div.absolute
www.pdn.ac.lk/dashboard/function/uploads/NCPA.jpg45.0 KiB26.9 KiB
div.mb-10 > div.grid > div.flex > div.bg-center div.mb-10 > div.grid > div.flex > div.bg-center
www.pdn.ac.lk/assets/pgis-TULitz-4.jpg62.9 KiB5.9 KiB

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

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

Diagnostics

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: 47.3 s 9.3 MiB
URLTransfer SizeEst Savings
www.pdn.ac.lk/assets/index-BpTvxTJs.js9.6 MiB9.2 MiB
/_/translate_http/_/js/k=translate_http.tr.es.RNAW9s8xbEk...91.1 KiB52.8 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: 0.0 ms 16.2 KiB
URLTransfer SizeEst Savings
www.pdn.ac.lk/assets/index-Mijw4ZQf.css19.5 KiB16.2 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
www.pdn.ac.lk/assets/pgims1-BoMC2-E-.png25.2 MiB
www.pdn.ac.lk/assets/veternery-lOuZy_gg.png18.0 MiB
www.pdn.ac.lk/dashboard/function/uploads/Flyer_DMD_25.jpg15.8 MiB
www.pdn.ac.lk/assets/index-BpTvxTJs.js9.6 MiB
www.pdn.ac.lk/assets/external-BYXKn1n_.jpg7.7 MiB
www.pdn.ac.lk/assets/eng-WIYWjtli.jpg3.6 MiB
www.pdn.ac.lk/assets/dental-DqLNlY46.jpg3.1 MiB
www.pdn.ac.lk/dashboard/function/uploads/LH-advertisement.png1.9 MiB
www.pdn.ac.lk/dashboard/function/uploads/English.png1.6 MiB
www.pdn.ac.lk/dashboard/function/uploads/MPH.png1.4 MiB

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
Other7.1 s
Style & Layout1.3 s
Script Evaluation1.2 s
Rendering997 ms
Parse HTML & CSS131 ms
Script Parsing & Compilation104 ms
Garbage Collection53 ms

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
UoP div.flex > div.xl:hidden > a > img.w-auto
www.pdn.ac.lk/assets/uoplogo-DRtZaWAf.png
University of Peradeniya Logo footer.pt-20 > div.px-4 > div.text-center > img.h-20
www.pdn.ac.lk/assets/uoplogo-DRtZaWAf.png

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

●Max Potential First Input Delay 90 ms
●Layout shift culprits
●Document request latency
●Optimize DOM size
●Forced reflow
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 2 user timings
●JavaScript execution time 1.3 s
●Avoid long main-thread tasks 7 long tasks found
●Avoid non-composited animations 1 animated element found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 110 ms
●Server Backend Latencies 70 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 160 ms
●Avoid large layout shifts 1 layout shift found
○INP breakdown
○LCP request discovery
81

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.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.w-full > div.p-4 > div.flex > button.p-2 div.w-full > div.p-4 > div.flex > button.p-2
div.relative > div.mt-8 > div.relative > button.absolute div.relative > div.mt-8 > div.relative > button.absolute
div.relative > div.mt-8 > div.relative > button.absolute div.relative > div.mt-8 > div.relative > button.absolute

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.

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
Added: 2026-08-20 div.flex > div.bg-white > div.p-2 > p.text-xs
Added: 2026-08-17 div.flex > div.bg-white > div.p-2 > p.text-xs
Added: 2026-07-20 div.flex > div.bg-white > div.p-2 > p.text-xs
Added: 2026-07-01 div.flex > div.bg-white > div.p-2 > p.text-xs

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
UNDERGRADUATE PROGRAMMES & OTHER COURSES. div.grid > div.flex > div.w-full > h5.uppercase
iPURSE 2026 - div.flex > div.bg-white > div.p-2 > h3.text-md
INTERNAL STUDENTS div.max-w-7xl > div.grid > div.relative > h3.text-md

These are opportunities to improve keyboard navigation in your application.

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
Go to slide 1 div.mt-10 > div.absolute > div.flex > button.w-2
Go to slide 2 div.mt-10 > div.absolute > div.flex > button.w-2
Go to slide 3 div.mt-10 > div.absolute > div.flex > button.w-2
Go to slide 4 div.mt-10 > div.absolute > div.flex > button.w-2
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One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

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>`
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●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
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<frame>` or `<iframe>` elements have a title
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Deprecated ARIA roles were not used
○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
○`[role]`s have all required `[aria-*]` attributes
○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
○`[role]` values are valid
○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
○`<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
○Links are distinguishable without relying on color.
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○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.
96

Best Practices

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
www.pdn.ac.lk/assets/index-BpTvxTJs.js line 3496, col 12452
Error fetching visitor count: TypeError: Failed to fetch at https://www.pdn.ac.lk/assets/index-BpTvxTJs.js:3497:12356 at https://www.pdn.ac.lk/assets/index-BpTvxTJs.js:3497:12547 at Z7 (https://www.pdn.ac.lk/assets/index-BpTvxTJs.js:40:24493) at e5 (https://www.pdn.ac.lk/assets/index-BpTvxTJs.js:40:42973) at https://www.pdn.ac.lk/assets/index-BpTvxTJs.js:40:41205 at C (https://www.pdn.ac.lk/assets/index-BpTvxTJs.js:25:1614) at MessagePort.W (https://www.pdn.ac.lk/assets/index-BpTvxTJs.js:25:1980)
api.countapi.xyz/hit/www.pdn.ac.lk/visitors
Failed to load resource: net::ERR_NAME_NOT_RESOLVED

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.

URL
www.pdn.ac.lk/assets/index-BpTvxTJs.js
●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
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●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
○Redirects HTTP traffic to HTTPS
○Detected JavaScript libraries
67

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

Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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 destinationLink Text
www.pdn.ac.lk/ViewOneNews/140Learn More
/en/2024/applications-are-open-for-ncpa-university-studen...Read More
cjs.sljol.info/articles/10.4038/cjs.v53i4.8264Read More
pubmed.ncbi.nlm.nih.gov/39922589/Read More
eng.pdn.ac.lk/dmie/pg-research-ongoing.htmlRead More
www.mdpi.com/2071-1050/15/13/10235Read More
ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10869473Read More

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

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
E body > div#root > div#language_selector > a
සි body > div#root > div#language_selector > a
த body > div#root > div#language_selector > a

If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed. Learn more about robots.txt.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Line #ContentError
1<!DOCTYPE html>Syntax not understood
2<html lang="en">Syntax not understood
3 <head>Syntax not understood
4 <meta charset="UTF-8" />Syntax not understood
5 <link rel="icon" type="image/png" href="/logouop.png" />Syntax not understood
6 <meta name="viewport" content="width=device-width, initial-scale=1.0" />Syntax not understood
7 <title>University of Peradeniya | UoP</title>Syntax not understood
9 <!-- Google Translate -->Syntax not understood
10 <script type="text/javascript">Syntax not understood
11 function googleTranslateElementInit() {Syntax not understood
12 new google.translate.TranslateElement(Syntax not understood
13 {Syntax not understood
14 pageLanguage: "en",Unknown directive
15 includedLanguages: "en,si,ta",Unknown directive
16 layout: google.translate.TranslateElement.InlineLayout.SIMPLE,Unknown directive
17 },Syntax not understood
18 "google_translate_element"Syntax not understood
19 );Syntax not understood
20 }Syntax not understood
21 </script>Syntax not understood
22 <scriptSyntax not understood
23 type="text/javascript"Syntax not understood
24 src="//translate.google.com/translate_a/element.js?cb=googleTranslateElementInit"Syntax not understood
25 ></script>Syntax not understood
27 <style>#google_translate_element,.goog-te-banner-frame.skiptranslate{display:none!important}body{top:0!important}.goog-logo-link,.goog-te-gadget span{display:none!important}</style>Syntax not understood
28 <script type="module" crossorigin src="/assets/index-BpTvxTJs.js"></script>Syntax not understood
29 <link rel="stylesheet" crossorigin href="/assets/index-Mijw4ZQf.css">Syntax not understood
30 </head>Syntax not understood
31 <body>Syntax not understood
32 <div id="root"></div>Syntax not understood
33 <!-- Vite will replace this with the correct built JS file on build -->Syntax not understood
35 </body>Syntax not understood
36</html>Syntax not understood

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

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Page has successful HTTP status code
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
○Document has a valid `rel=canonical`

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