C — https://upc.edu | BeaverCheck Audit

Site Health

Score: 70 / 100

Based on 8 categories, 0 sections

Decent speed, but optimizing further could improve engagement.

Several missing protections leave your users and data exposed.

Several issues make your site difficult for assistive technology users.

Well-optimized for search — your content is discoverable.

Good server performance with room for optimization.

Mostly compliant — a few items need attention.

Good content signals with minor gaps.

Heavier than average — reducing page weight saves energy and bandwidth.

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

How the composite score is calculated

How you compare

Backbone.js · 49 peers

You 70

Avg 71

At average

0 50 100

Better than 16% of Backbone.js sites See full Backbone.js benchmark →

Bitmovin · 6 peers

You 70

Avg 73

At average

0 50 100

Better than 16% of Bitmovin sites See full Bitmovin benchmark →

Top Priorities (5)

Content-Security-Policy header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

HSTS header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

No Content-Security-Policy header found

Security gaps expose your site and users to attacks, eroding trust.

Security › Content Security Policy

Page weighs 8.2 MB (6.0 MB transferred)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Budget

3 image-in-link without alt text

Accessibility issues exclude users with disabilities — up to 15% of your potential audience.

Accessibility › Alt Text Quality

View fix priority matrix

Fix Priority Matrix

5 findings

Impact

Quick Wins

High impact, low effort — start here.

Strategic

High impact, requires investment.

Easy Improvements

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →

Embed this badge

Markdown

[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fupc.edu)](https://beavercheck.com/results/59c5ced8-8257-4d02-8417-0b2664f7fe5f)

HTML

<a href="https://beavercheck.com/results/59c5ced8-8257-4d02-8417-0b2664f7fe5f"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fupc.edu" alt="BeaverCheck Score"></a>

Image URL

https://beavercheck.com/badge?url=https%3A%2F%2Fupc.edu

This badge auto-updates with your latest scan result.

What fixing these means

Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Your LCP of 10.5s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. Accessibility issues exclude users who rely on assistive technology — an estimated 15% of your potential audience. Addressing the critical issues below would have the most immediate impact on your user trust.

3 security gaps detected — browsers may warn visitors about your site.

Your LCP is 10.5s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.

1 accessibility issue excludes users who rely on assistive technology.

Conversion Barriers

3 critical 5 warning

8 barrier(s) likely increasing bounce by ~30%.

Speed (2)

Page takes 10.5s to load

+12% bounce

Users abandon at ~3s — you're 8.0s over the 2.5s threshold

Fix: Optimize render-blocking resources, preload the hero image, and compress images

Page feels frozen for 628ms

+5% bounce

Clicks on the primary CTA are ignored while JavaScript runs

Fix: Break up long tasks; defer non-critical JavaScript to post-hydration

Trust (2)

No HSTS header

+1% bounce

Returning visitors are briefly exposed to downgrade attacks on first request

Fix: Set Strict-Transport-Security: max-age=31536000; includeSubDomains

No Content-Security-Policy header

+1% bounce

Higher XSS blast radius — one compromised script can exfiltrate the checkout form

Fix: Ship a reporting-only CSP first, then enforce once violations are clean

Content (1)

No structured data

+2% bounce

No rich-result eligibility in Google — lower SERP CTR vs competitors with stars and prices

Fix: Add JSON-LD for your page type (Product, Article, FAQPage, LocalBusiness, …)

Navigation (3)

8 link(s) with generic text ("click here", "read more")

+1% bounce

Screen-reader users navigating by link list see no context — and search engines can't infer relevance

Fix: Rewrite with descriptive phrases that identify the destination

No skip-to-content link

+1% bounce

Keyboard and screen-reader users must tab through the entire header on every page

Fix: Add a visible-on-focus <a href="#main">Skip to content</a> as the first focusable element

4 broken link(s) on the page

+5% bounce

Clicks land on 404s — trust drops and the session often ends

Fix: Fix or remove the broken destinations surfaced on the Content tab

Preliminary CRO audit — each barrier links to the tab with detailed analysis.

Return on Investment

€275 investment → €4,035/month returns + EUR 120,500,000 risk avoided

Payback period: < 1 month First-year ROI: +17507%

Investment

€275

5h · 5 findings

Monthly returns

€4,035 /mo

~€48,419 / year

Conversions recovered €4,033
Bandwidth savings €1.41

Regulatory risk avoided

EUR 120,500,000

if kept compliant

ePrivacy Directive EUR 100,000,000
RGPD EUR 20,000,000
EAA EUR 500,000

Payback period

0 12mo 24mo

€83 — in quick wins — start here for the fastest payback

Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.

Full methodology & sources

Estimated Remediation Cost

€275

5.0 developer hours at €55/hr

Based on Spain rates (€55/hr)

Quick wins

€83 3 fixes in ~90 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions

Custom rate

€ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

€10,041,668 / month at risk

~€120,500,017 / year if left unfixed

Compliance Risk

€120,500,000

ePrivacy DirectiveRGPDEAA

No privacy policy link detected
RGPD: EUR 10,000 – EUR 20,000,000
Trackers detected but no cookie policy found
RGPD: EUR 5,000 – EUR 10,000,000
Trackers detected but no cookie policy found
RGPD: EUR 10,000 – EUR 20,000,000

+7 more

Bandwidth Waste

€1.41 /mo

18979.0 MB/mo × 0.074 EUR/GB

Optimize transfer: save ~1.9 MB per page load
Saves €1.41/mo

Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.

Compliance methodology · SEO assumptions · Bandwidth model

Your performance is already good — improvements may show diminishing returns

Monthly visitors

Unique monthly visitors from your analytics

Conversion rate (%)

Purchases, signups, or key actions

Avg. order value

Optional — for revenue estimation

additional conversions/month

more engaged visitors from reduced bounce

potential monthly revenue

Current bounce (est.)

After fixes (est.)

Estimated bounce reduction

Fix 5 critical issues to capture this value

How this is calculated

Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.

Your site's LCP: → estimated after fixes.

These are estimates based on industry research — actual results vary

Bounce-rate model & assumptions

Your data stays in your browser — nothing is sent to our servers

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

Performance

Accessibility

Best Practices

SEO

Core Web Vitals

Key metrics that affect user experience.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

6.06 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

10.52 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

628 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.000

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

7.58 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

14.90 s

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

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

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
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js	86400.0 s	176.9 KiB
/ca/media/destacats-home/microcredencials_upcschool.png/@...	86400.0 s	153.1 KiB
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.css	86400.0 s	152.4 KiB
/ca/media/r-d-i/foment-i-suport-a-la-recerca/7-beques-doc...	86400.0 s	134.5 KiB
privacy-proxy.usercentrics.eu/latest/uc-block.bundle.js	3600.0 s	30.4 KiB
/ca/media/destacats-home/becamec_2026-700x350px.png/@@ima...	86400.0 s	52.6 KiB
/ca/media/destacats-home/franja-grisa-ca.jpg/@@images/12d...	86400.0 s	41.9 KiB
/ca/per-que-estudiar-un-master-a-la-upc/src/masters-si-we...	86400.0 s	31.1 KiB
/++theme++homeupc/assets/css/homeupc-compiled.css?version...	86400.0 s	28.1 KiB
scripts.clarity.ms/0.8.59/clarity.js	86400.0 s	26.2 KiB
/ca/media/empresa/noia-horitzontal-prestigi-2018.jpg/@@im...	86400.0 s	21.9 KiB
app.usercentrics.eu/browser-ui/latest/loader.js	3600.0 s	10.8 KiB
/++theme++homeupc/assets/fonts/bootstrap/glyphicons-halfl...	86400.0 s	19.2 KiB
/++theme++homeupc/assets/fonts/roboto/KFOjCnqEu92Fr1Mu51T...	86400.0 s	18.7 KiB
/++theme++homeupc/assets/css/upc.css?version=2026-01-26%2...	86400.0 s	17.9 KiB
www.upc.edu/++theme++homeupc/assets/fonts/roboto/KFOlCnqEu92Fr1MmEU9fBBc4.woff2	86400.0 s	17.2 KiB
www.upc.edu/++theme++homeupc/assets/fonts/roboto/KFOlCnqEu92Fr1MmWUlfBBc4.woff2	86400.0 s	17.1 KiB
www.upc.edu/++theme++homeupc/assets/fonts/roboto/KFOlCnqEu92Fr1MmSU5fBBc4.woff2	86400.0 s	17.0 KiB
/ca/media/fons_destacat_menu_carbassa.jpg/@@images/d5176e...	86400.0 s	14.3 KiB
/ca/media/fons_destacat_menu_lila.jpg/@@images/39d02c7d-9...	86400.0 s	13.6 KiB
/ca/media/fons_destacat_menu_blau.jpg/@@images/55782bcc-0...	86400.0 s	12.3 KiB
/++theme++homeupc/assets/javascripts/homeupc-compiled.js?...	86400.0 s	11.7 KiB
www.upc.edu/++theme++homeupc/assets/fonts/upc-icones.ttf?40tf5e	86400.0 s	10.0 KiB
www.upc.edu/++theme++homeupc/assets/images/Logo.svg	86400.0 s	5.4 KiB
/++theme++homeupc/assets/javascripts/upc.min.js?version=2...	86400.0 s	3.0 KiB
www.upc.edu/++theme++homeupc/assets/javascripts/lang_tag.js	86400.0 s	1.9 KiB
app.usercentrics.eu/session/1px.png?settingsId=k73tMWYfS	1800.0 s	817 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.

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
Microcredencials universitàries `div.row > div.col-xs-12 > a.btn-banner > img.image-inline`	/ca/media/destacats-home/microcredencials_upcschool.png/@...	151.5 KiB	138.4 KiB
Luiz Inácio Lula da Silva amb representants del BSC i la UPC, entre d'altres, v… `div.area4 > div.card > picture > img`	/ca/sala-de-premsa/noticies/els-presidents-del-brasil-uru...	137.1 KiB	98.0 KiB
div.container > div.promo-img > picture > img `div.container > div.promo-img > picture > img`	/ca/continguts-home/promocio/sessions-de-masters-universi...	113.3 KiB	91.0 KiB
div.area5 > div.card > picture > img `div.area5 > div.card > picture > img`	/ca/sala-de-premsa/noticies/creen-teixits-vius-capacos-ca...	129.0 KiB	89.9 KiB
La presentació de l'Espai de Dades Agroalimentari, a l'Auditori del Vèrtex `div.area3 > div.card > picture > img`	/ca/sala-de-premsa/noticies/upc-presenta-espai-dades-agro...	123.3 KiB	84.3 KiB
Alumnes a l'edició del CanSat 2024-25 `div.area2 > div.card > picture > img`	/ca/sala-de-premsa/noticies/arriba-gran-final-catalana-co...	117.2 KiB	78.2 KiB
div.area1 > div.card > picture > img `div.area1 > div.card > picture > img`	/ca/sala-de-premsa/noticies/es-presenta-leia-upc-programa...	114.3 KiB	75.3 KiB
Blau 3005. Càpsules d'aprenentatge `div.row > div.col-xs-12 > a.btn-banner > img.image-inline`	/ca/media/r-d-i/foment-i-suport-a-la-recerca/7-beques-doc...	132.9 KiB	74.5 KiB
Cartell de la campanya de promoció dels estudis: UPC, la millor decisió de la t… `div.mosaic-tile-content > section#hero > picture > img`	/ca/continguts-home/foto-portada/jornades-portes-obertes-...	88.6 KiB	51.3 KiB
Portal futurs estudiants `div.row > div.col-xs-12 > a.btn-banner > img.image-inline`	/ca/media/destacats-home/franja-grisa-ca.jpg/@@images/12d...	40.3 KiB	25.6 KiB
Sessions informatives de màster `div.row > div.col-xs-12 > a.btn-banner > img.image-inline`	/ca/per-que-estudiar-un-master-a-la-upc/src/masters-si-we...	29.5 KiB	14.8 KiB
Màster i postgraus de formació contínua `div.row > div.col-xs-12 > a.btn-banner > img.image-inline`	/ca/media/empresa/noia-horitzontal-prestigi-2018.jpg/@@im...	20.2 KiB	7.2 KiB
div.area-gran > div.card > picture > img.card-img-top `div.area-gran > div.card > picture > img.card-img-top`	/ca/sala-de-premsa/noticies/la-universitat-politecnica-de...	8.7 KiB	6.6 KiB

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-8-IMG

nodeLabel: Cartell de la campanya de promoció dels estudis: UPC, la millor decisió de la t…

path: 1,HTML,1,BODY,1,MAIN,1,SECTION,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,DIV,2,SECTION,0,PICTURE,2,IMG

selector: div.mosaic-tile-content > section#hero > picture > img

snippet: <img src="https://www.upc.edu/ca/continguts-home/foto-portada/jornades-portes-oberte…" alt="Cartell de la campanya de promoció dels estudis: UPC, la millor decisió de…" width="2222" height="981">

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

value: No additional origins are good candidates for preconnecting

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
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js	176.9 KiB	2.7 s
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.css	152.4 KiB	2.5 s
/++theme++homeupc/assets/css/upc.css?version=2026-01-26%2...	17.9 KiB	858 ms
/++theme++homeupc/assets/css/homeupc-compiled.css?version...	28.1 KiB	1.2 s
/++theme++homeupc/assets/javascripts/homeupc-compiled.js?...	11.7 KiB	858 ms
/++theme++homeupc/assets/javascripts/upc.min.js?version=2...	3.0 KiB	552 ms

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.

URL	Protocol
www.upc.edu/ca	http/1.1
www.upc.edu/++theme++homeupc/assets/javascripts/lang_tag.js	http/1.1
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.css	http/1.1
/++theme++homeupc/assets/css/homeupc-compiled.css?version...	http/1.1
/++theme++homeupc/assets/css/upc.css?version=2026-01-26%2...	http/1.1
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js	http/1.1
/++theme++homeupc/assets/javascripts/homeupc-compiled.js?...	http/1.1
/++theme++homeupc/assets/javascripts/upc.min.js?version=2...	http/1.1
www.upc.edu/++theme++homeupc/assets/images/Logo.svg	http/1.1
/ca/media/fons_destacat_menu_carbassa.jpg/@@images/d5176e...	http/1.1
/ca/media/fons_destacat_menu_blau.jpg/@@images/55782bcc-0...	http/1.1
/ca/media/fons_destacat_menu_lila.jpg/@@images/39d02c7d-9...	http/1.1
/ca/continguts-home/foto-portada/jornades-portes-obertes-...	http/1.1
/ca/sala-de-premsa/noticies/la-universitat-politecnica-de...	http/1.1
/ca/media/destacats-home/franja-grisa-ca.jpg/@@images/12d...	http/1.1
/ca/per-que-estudiar-un-master-a-la-upc/src/masters-si-we...	http/1.1
/ca/media/destacats-home/becamec_2026-700x350px.png/@@ima...	http/1.1
/ca/media/r-d-i/foment-i-suport-a-la-recerca/7-beques-doc...	http/1.1
/ca/media/empresa/noia-horitzontal-prestigi-2018.jpg/@@im...	http/1.1
/ca/media/destacats-home/microcredencials_upcschool.png/@...	http/1.1
/ca/continguts-home/promocio/sessions-de-masters-universi...	http/1.1
/ca/continguts-home/promocio/la-upc-a-la-capitalitat-mund...	http/1.1
/ca/continguts-home/espai-multimedia/upc-la-millor-decisi...	http/1.1
/ca/continguts-home/espai-multimedia/durbec-aero-start-up...	http/1.1
/ca/continguts-home/espai-multimedia/descobreix-el-labora...	http/1.1
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide5.jpeg	http/1.1
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide6.jpeg	http/1.1
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide7.jpeg	http/1.1
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide8.jpeg	http/1.1
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide9.jpeg	http/1.1
/ca/media/destacats-home/carrusel-ranquings/carrusel_2021...	http/1.1
www.upc.edu/++theme++homeupc/assets/fonts/roboto/KFOlCnqEu92Fr1MmEU9fBBc4.woff2	http/1.1
www.upc.edu/++theme++homeupc/assets/fonts/upc-icones.ttf?40tf5e	http/1.1
www.upc.edu/++theme++homeupc/assets/fonts/roboto/KFOlCnqEu92Fr1MmSU5fBBc4.woff2	http/1.1
www.upc.edu/++theme++homeupc/assets/fonts/roboto/KFOlCnqEu92Fr1MmWUlfBBc4.woff2	http/1.1
/ca/sala-de-premsa/noticies/es-presenta-leia-upc-programa...	http/1.1
/ca/sala-de-premsa/noticies/arriba-gran-final-catalana-co...	http/1.1
/ca/sala-de-premsa/noticies/upc-presenta-espai-dades-agro...	http/1.1
/ca/sala-de-premsa/noticies/els-presidents-del-brasil-uru...	http/1.1
/ca/sala-de-premsa/noticies/creen-teixits-vius-capacos-ca...	http/1.1
/ca/sala-de-premsa/noticies/eleccions-al-claustre-univers...	http/1.1
www.upc.edu/plonejsi18n?domain=widgets&language=ca	http/1.1
/++theme++homeupc/assets/fonts/roboto/KFOjCnqEu92Fr1Mu51T...	http/1.1
/++theme++homeupc/assets/fonts/bootstrap/glyphicons-halfl...	http/1.1
www.upc.edu/cross-domain-bridge.html	http/1.1
www.upc.edu/++theme++homeupc/assets/images/favicon.ico	http/1.1

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: 2.1 s

URL	Time Spent
upc.edu/	1.1 s
www.upc.edu/	1.0 s
www.upc.edu/ca	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 JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 210 ms 19.6 KiB

URL	Transfer Size	Est Savings
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js	175.3 KiB	19.6 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: 950 ms 187.8 KiB

URL	Transfer Size	Est Savings
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.css	150.7 KiB	150.1 KiB
/++theme++homeupc/assets/css/homeupc-compiled.css?version...	26.4 KiB	25.3 KiB
/++theme++homeupc/assets/css/upc.css?version=2026-01-26%2...	16.2 KiB	12.4 KiB

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

Why this matters

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.

Source: Google web.dev / Lighthouse

Estimated savings: 1.3 s 298.9 KiB

URL	Transfer Size	Est Savings
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js	169.2 KiB	91.9 KiB
www.googletagmanager.com/gtag/js?id=G-SR6Z9ZZ2SJ&cx=c&gtm=4e64k0	157.2 KiB	67.4 KiB
www.googletagmanager.com/gtag/js?id=G-P80Z250TEZ	154.6 KiB	61.8 KiB
app.usercentrics.eu/browser-ui/3.99.0/index.module.js	120.6 KiB	53.1 KiB
app.usercentrics.eu/browser-ui/3.99.0/VirtualServiceItem-e4cab338.js	48.6 KiB	24.7 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.upc.edu/ca	1.3 s	13 ms	3.8 ms
app.usercentrics.eu/browser-ui/3.99.0/index.module.js	949 ms	768 ms	2.7 ms
Unattributable	719 ms	90 ms	0.0 ms
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js	447 ms	286 ms	89 ms
www.googletagmanager.com/gtag/js?id=G-SR6Z9ZZ2SJ&cx=c&gtm=4e64k0	362 ms	302 ms	58 ms
www.googletagmanager.com/gtag/js?id=G-P80Z250TEZ	295 ms	231 ms	60 ms
scripts.clarity.ms/0.8.59/clarity.js	290 ms	248 ms	13 ms
privacy-proxy.usercentrics.eu/latest/uc-block.bundle.js	54 ms	40 ms	13 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	2.3 s
Style & Layout	1.2 s
Other	804 ms
Script Parsing & Compilation	257 ms
Rendering	133 ms
Parse HTML & CSS	121 ms
Garbage Collection	43 ms

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.

URL	Transfer Size
/ca/media/destacats-home/carrusel-ranquings/carrusel_2021...	1.0 MiB
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide8.jpeg	920.9 KiB
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide7.jpeg	826.1 KiB
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide6.jpeg	332.6 KiB
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js	176.9 KiB
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide5.jpeg	157.5 KiB
www.googletagmanager.com/gtag/js?id=G-SR6Z9ZZ2SJ&cx=c&gtm=4e64k0	157.3 KiB
www.googletagmanager.com/gtag/js?id=G-P80Z250TEZ	154.9 KiB
/ca/media/destacats-home/microcredencials_upcschool.png/@...	153.1 KiB
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.css	152.4 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`	/ca/continguts-home/espai-multimedia/upc-la-millor-decisi...
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`	/ca/continguts-home/espai-multimedia/durbec-aero-start-up...
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`	/ca/continguts-home/espai-multimedia/descobreix-el-labora...
div.container > div.promo-img > picture > img `div.container > div.promo-img > picture > img`	/ca/continguts-home/promocio/sessions-de-masters-universi...
La UPC, a la CapitalitatMundial de l'Arquitectura 2026 `div.container > div.promo-img > picture > img`	/ca/continguts-home/promocio/la-upc-a-la-capitalitat-mund...
Universitat Politècnica de Catalunya BarcelonaTech `a > h1 > span.icona-upc > img`	www.upc.edu/++theme++homeupc/assets/images/Logo.svg

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

●Layout shift culprits

●Optimize DOM size

●Font display

●Forced reflow

●LCP breakdown

●Optimize viewport for mobile

●Minify CSS

●User Timing marks and measures 10 user timings

●Avoid long main-thread tasks 20 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 100 ms

●Server Backend Latencies 210 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 100 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○Avoid non-composited animations

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.

ARIA

When an input field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more about input field labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
PRODUCTIVA la UPC, entre les universitats liders de l'Estat pel que fa al seu r… `div > div.container > div#carousel-example-generic > div.carousel-inner`

These are opportunities to improve the usage of ARIA in your application which 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
Accepta-ho tot `div.sc-koXPp > div.sc-iHGNWf > div.sc-bmzYkS > button.sc-gsFSXq`
Rebutja-ho tot `div.sc-koXPp > div.sc-iHGNWf > div.sc-bmzYkS > button.sc-gsFSXq`

These are opportunities to improve the legibility of your content.

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
li.col-md-3 > a.event-img > picture > img `li.col-md-3 > a.event-img > picture > img`
li.col-md-3 > a.event-img > picture > img `li.col-md-3 > a.event-img > picture > img`
li.col-md-3 > a.event-img > picture > img `li.col-md-3 > a.event-img > picture > img`
li.col-md-3 > a.event-img > picture > img `li.col-md-3 > a.event-img > picture > img`
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`

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
section > div.row > div.col-lg-4 > a.a-multimedia `section > div.row > div.col-lg-4 > a.a-multimedia`
section > div.row > div.col-lg-4 > a.a-multimedia `section > div.row > div.col-lg-4 > a.a-multimedia`
section > div.row > div.col-lg-4 > a.a-multimedia `section > div.row > div.col-lg-4 > a.a-multimedia`

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
Mapa del web `nav#complimentary-footer-nav > ul#footer-menu-complementari > li > a`
Accessibilitat `nav#complimentary-footer-nav > ul#footer-menu-complementari > li > a`

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

●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

●`[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.

●`[accesskey]` values are unique

●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

●ARIA toggle fields have accessible names

●Document has a `<title>` element

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

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

●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

●Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

●`[lang]` attributes have a valid value

●Heading elements appear in a sequentially-descending order

●`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

●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.

○`button`, `link`, and `menuitem` elements have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with the `role=text` attribute do not have focusable descendents.

○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

○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.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`<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

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.

Source	Description
www.upc.edu/ca line 26, col 8	`ReferenceError: uc is not defined at https://www.upc.edu/ca:27:9`

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	Map URL
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js	/++plone++production/++unique++2026-01-26T16:39:10.719273...

●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

●Detected JavaScript libraries

○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

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.

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
li.col-md-3 > a.event-img > picture > img `li.col-md-3 > a.event-img > picture > img`
li.col-md-3 > a.event-img > picture > img `li.col-md-3 > a.event-img > picture > img`
li.col-md-3 > a.event-img > picture > img `li.col-md-3 > a.event-img > picture > img`
li.col-md-3 > a.event-img > picture > img `li.col-md-3 > a.event-img > picture > img`
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`

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

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

Performance

Accessibility

Best Practices

SEO

Core Web Vitals

Key metrics that affect user experience. — Desktop

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

2.20 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

2.90 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

10 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.002

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

2.59 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

3.37 s

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.

Why this matters

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Source: Google web.dev / Lighthouse

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
/ca/media/destacats-home/sense-plastic-home-2.png/@@image...	86400.0 s	211.1 KiB
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js	86400.0 s	176.9 KiB
/ca/media/destacats-home/microcredencials_upcschool.png/@...	86400.0 s	153.1 KiB
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.css	86400.0 s	152.4 KiB
/ca/media/r-d-i/foment-i-suport-a-la-recerca/7-beques-doc...	86400.0 s	134.5 KiB
/ca/media/destacats-home/esports-femeni-home.jpg/@@images...	86400.0 s	61.7 KiB
privacy-proxy.usercentrics.eu/latest/uc-block.bundle.js	3600.0 s	30.5 KiB
/ca/media/destacats-home/formula-student-home.jpg/@@image...	86400.0 s	54.0 KiB
/ca/media/destacats-home/becamec_2026-700x350px.png/@@ima...	86400.0 s	52.6 KiB
/ca/media/destacats-home/franja-grisa-ca.jpg/@@images/12d...	86400.0 s	41.9 KiB
/ca/per-que-estudiar-un-master-a-la-upc/src/masters-si-we...	86400.0 s	31.1 KiB
/++theme++homeupc/assets/css/homeupc-compiled.css?version...	86400.0 s	28.1 KiB
scripts.clarity.ms/0.8.59/clarity.js	86400.0 s	26.2 KiB
/ca/media/empresa/noia-horitzontal-prestigi-2018.jpg/@@im...	86400.0 s	21.9 KiB
app.usercentrics.eu/browser-ui/latest/loader.js	3600.0 s	10.8 KiB
/++theme++homeupc/assets/fonts/bootstrap/glyphicons-halfl...	86400.0 s	19.2 KiB
/++theme++homeupc/assets/fonts/roboto/KFOjCnqEu92Fr1Mu51T...	86400.0 s	18.7 KiB
/++theme++homeupc/assets/css/upc.css?version=2026-01-26%2...	86400.0 s	17.9 KiB
www.upc.edu/++theme++homeupc/assets/fonts/roboto/KFOlCnqEu92Fr1MmEU9fBBc4.woff2	86400.0 s	17.2 KiB
www.upc.edu/++theme++homeupc/assets/fonts/roboto/KFOlCnqEu92Fr1MmWUlfBBc4.woff2	86400.0 s	17.1 KiB
www.upc.edu/++theme++homeupc/assets/fonts/roboto/KFOlCnqEu92Fr1MmSU5fBBc4.woff2	86400.0 s	17.0 KiB
/ca/media/fons_destacat_menu_carbassa.jpg/@@images/d5176e...	86400.0 s	14.3 KiB
/ca/media/fons_destacat_menu_lila.jpg/@@images/39d02c7d-9...	86400.0 s	13.6 KiB
/ca/media/fons_destacat_menu_blau.jpg/@@images/55782bcc-0...	86400.0 s	12.3 KiB
/++theme++homeupc/assets/javascripts/homeupc-compiled.js?...	86400.0 s	11.7 KiB
www.upc.edu/++theme++homeupc/assets/fonts/upc-icones.ttf?40tf5e	86400.0 s	10.0 KiB
www.upc.edu/++theme++homeupc/assets/images/Logo.svg	86400.0 s	5.4 KiB
/++theme++homeupc/assets/javascripts/upc.min.js?version=2...	86400.0 s	3.0 KiB
www.upc.edu/++theme++homeupc/assets/javascripts/lang_tag.js	86400.0 s	1.9 KiB
app.usercentrics.eu/session/1px.png?settingsId=k73tMWYfS	1800.0 s	817 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.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:58.314 source:map[column:30286 line:2 type:source-location url:https://www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js urlProvider:network]]]

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:85.882 source:map[type:text value:[unattributed]]] map[reflowTime:58.314 source:map[column:31379 line:1 type:source-location url:https://www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js urlProvider:network]]]

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
Microcredencials universitàries `div.row > div.col-xs-12 > a.btn-banner > img.image-inline`	/ca/media/destacats-home/microcredencials_upcschool.png/@...	151.5 KiB	139.2 KiB
Luiz Inácio Lula da Silva amb representants del BSC i la UPC, entre d'altres, v… `div.area4 > div.card > picture > img`	/ca/sala-de-premsa/noticies/els-presidents-del-brasil-uru...	137.1 KiB	128.7 KiB
div.area5 > div.card > picture > img `div.area5 > div.card > picture > img`	/ca/sala-de-premsa/noticies/creen-teixits-vius-capacos-ca...	129.0 KiB	120.5 KiB
Blau 3005. Càpsules d'aprenentatge `div.row > div.col-xs-12 > a.btn-banner > img.image-inline`	/ca/media/r-d-i/foment-i-suport-a-la-recerca/7-beques-doc...	132.9 KiB	116.0 KiB
La presentació de l'Espai de Dades Agroalimentari, a l'Auditori del Vèrtex `div.area3 > div.card > picture > img`	/ca/sala-de-premsa/noticies/upc-presenta-espai-dades-agro...	123.3 KiB	114.9 KiB
Cartell de la campanya de promoció dels estudis: UPC, la millor decisió de la t… `div.mosaic-tile-content > section#hero > picture > img`	/ca/continguts-home/foto-portada/jornades-portes-obertes-...	211.5 KiB	110.3 KiB
Alumnes a l'edició del CanSat 2024-25 `div.area2 > div.card > picture > img`	/ca/sala-de-premsa/noticies/arriba-gran-final-catalana-co...	117.2 KiB	108.8 KiB
div.area1 > div.card > picture > img `div.area1 > div.card > picture > img`	/ca/sala-de-premsa/noticies/es-presenta-leia-upc-programa...	114.3 KiB	105.9 KiB
La UPC, a la CapitalitatMundial de l'Arquitectura 2026 `div.container > div.promo-img > picture > img`	/ca/continguts-home/promocio/la-upc-a-la-capitalitat-mund...	155.4 KiB	99.7 KiB
Cartell Teoría Cerdà `div.area7 > div.card > picture > img`	/ca/sala-de-premsa/noticies/llibre-teoria-cerda-publicat-...	100.2 KiB	91.8 KiB
div.area8 > div.card > picture > img `div.area8 > div.card > picture > img`	/ca/sala-de-premsa/noticies/upc-presenta-infraestructura-...	74.6 KiB	65.8 KiB
Beques i ajuts `div.row > div.col-xs-12 > a.btn-banner > img.image-inline`	/ca/media/destacats-home/becamec_2026-700x350px.png/@@ima...	51.0 KiB	36.1 KiB
div.container > div.promo-img > picture > img `div.container > div.promo-img > picture > img`	/ca/continguts-home/promocio/sessions-de-masters-universi...	91.4 KiB	35.7 KiB
Cartell de les Eleccions al Claustre Universitari 2026 `div.area6 > div.card > picture > img`	/ca/sala-de-premsa/noticies/eleccions-al-claustre-univers...	41.8 KiB	33.4 KiB
Portal futurs estudiants `div.row > div.col-xs-12 > a.btn-banner > img.image-inline`	/ca/media/destacats-home/franja-grisa-ca.jpg/@@images/12d...	40.3 KiB	24.7 KiB
Sessions informatives de màster `div.row > div.col-xs-12 > a.btn-banner > img.image-inline`	/ca/per-que-estudiar-un-master-a-la-upc/src/masters-si-we...	29.5 KiB	13.9 KiB
div.area-gran > div.card > picture > img.card-img-top `div.area-gran > div.card > picture > img.card-img-top`	/ca/sala-de-premsa/noticies/la-universitat-politecnica-de...	79.3 KiB	9.9 KiB
Màster i postgraus de formació contínua `div.row > div.col-xs-12 > a.btn-banner > img.image-inline`	/ca/media/empresa/noia-horitzontal-prestigi-2018.jpg/@@im...	20.2 KiB	8.0 KiB

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-5-IMG

nodeLabel: Cartell de la campanya de promoció dels estudis: UPC, la millor decisió de la t…

path: 1,HTML,1,BODY,1,MAIN,1,SECTION,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,DIV,2,SECTION,0,PICTURE,2,IMG

selector: div.mosaic-tile-content > section#hero > picture > img

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.

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.

URL	Transfer Size	Duration
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js	176.9 KiB	564 ms
/++theme++homeupc/assets/javascripts/homeupc-compiled.js?...	11.7 KiB	264 ms
/++theme++homeupc/assets/javascripts/upc.min.js?version=2...	3.0 KiB	221 ms
/++theme++homeupc/assets/css/homeupc-compiled.css?version...	28.1 KiB	307 ms
/++theme++homeupc/assets/css/upc.css?version=2026-01-26%2...	17.9 KiB	264 ms
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.css	152.4 KiB	521 ms

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.

URL	Protocol
www.upc.edu/ca	http/1.1
www.upc.edu/++theme++homeupc/assets/javascripts/lang_tag.js	http/1.1
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.css	http/1.1
/++theme++homeupc/assets/css/homeupc-compiled.css?version...	http/1.1
/++theme++homeupc/assets/css/upc.css?version=2026-01-26%2...	http/1.1
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js	http/1.1
/++theme++homeupc/assets/javascripts/homeupc-compiled.js?...	http/1.1
/++theme++homeupc/assets/javascripts/upc.min.js?version=2...	http/1.1
www.upc.edu/++theme++homeupc/assets/images/Logo.svg	http/1.1
/ca/media/fons_destacat_menu_carbassa.jpg/@@images/d5176e...	http/1.1
/ca/media/fons_destacat_menu_blau.jpg/@@images/55782bcc-0...	http/1.1
/ca/media/fons_destacat_menu_lila.jpg/@@images/39d02c7d-9...	http/1.1
/ca/continguts-home/foto-portada/jornades-portes-obertes-...	http/1.1
/ca/sala-de-premsa/noticies/la-universitat-politecnica-de...	http/1.1
/ca/media/destacats-home/franja-grisa-ca.jpg/@@images/12d...	http/1.1
/ca/per-que-estudiar-un-master-a-la-upc/src/masters-si-we...	http/1.1
/ca/media/destacats-home/becamec_2026-700x350px.png/@@ima...	http/1.1
/ca/media/r-d-i/foment-i-suport-a-la-recerca/7-beques-doc...	http/1.1
/ca/media/empresa/noia-horitzontal-prestigi-2018.jpg/@@im...	http/1.1
/ca/media/destacats-home/microcredencials_upcschool.png/@...	http/1.1
/ca/continguts-home/promocio/sessions-de-masters-universi...	http/1.1
/ca/continguts-home/promocio/la-upc-a-la-capitalitat-mund...	http/1.1
/ca/continguts-home/espai-multimedia/upc-la-millor-decisi...	http/1.1
/ca/continguts-home/espai-multimedia/durbec-aero-start-up...	http/1.1
/ca/continguts-home/espai-multimedia/descobreix-el-labora...	http/1.1
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide5.jpeg	http/1.1
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide6.jpeg	http/1.1
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide7.jpeg	http/1.1
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide8.jpeg	http/1.1
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide9.jpeg	http/1.1
/ca/media/destacats-home/carrusel-ranquings/carrusel_2021...	http/1.1
www.upc.edu/++theme++homeupc/assets/fonts/roboto/KFOlCnqEu92Fr1MmEU9fBBc4.woff2	http/1.1
www.upc.edu/++theme++homeupc/assets/fonts/roboto/KFOlCnqEu92Fr1MmSU5fBBc4.woff2	http/1.1
www.upc.edu/++theme++homeupc/assets/fonts/upc-icones.ttf?40tf5e	http/1.1
www.upc.edu/++theme++homeupc/assets/fonts/roboto/KFOlCnqEu92Fr1MmWUlfBBc4.woff2	http/1.1
/ca/sala-de-premsa/noticies/es-presenta-leia-upc-programa...	http/1.1
/ca/sala-de-premsa/noticies/arriba-gran-final-catalana-co...	http/1.1
/ca/sala-de-premsa/noticies/upc-presenta-espai-dades-agro...	http/1.1
/ca/sala-de-premsa/noticies/els-presidents-del-brasil-uru...	http/1.1
/ca/sala-de-premsa/noticies/creen-teixits-vius-capacos-ca...	http/1.1
/ca/sala-de-premsa/noticies/eleccions-al-claustre-univers...	http/1.1
/ca/sala-de-premsa/noticies/llibre-teoria-cerda-publicat-...	http/1.1
/ca/sala-de-premsa/noticies/upc-presenta-infraestructura-...	http/1.1
/ca/media/destacats-home/formula-student-home.jpg/@@image...	http/1.1
/ca/media/destacats-home/esports-femeni-home.jpg/@@images...	http/1.1
/ca/media/destacats-home/sense-plastic-home-2.png/@@image...	http/1.1
www.upc.edu/ca/agenda/esdeveniments/sant-jordi-upc/@@images/imatge/large	http/1.1
www.upc.edu/ca/agenda/esdeveniments/forum-futur-civil/@@images/imatge/large	http/1.1
/ca/agenda/esdeveniments/36a-edicio-del-forum-etseib-2026...	http/1.1
www.upc.edu/ca/agenda/esdeveniments/foot-talent-day/@@images/imatge/large	http/1.1
/ca/continguts-home/als-mitjans/destaquem/rtve-informatiu...	http/1.1
/ca/continguts-home/als-mitjans/destaquem/la-vanguardia-u...	http/1.1
/ca/continguts-home/als-mitjans/destaquem/la-vanguardia-n...	http/1.1
/ca/continguts-home/als-mitjans/destaquem/el-mati-de-cata...	http/1.1
www.upc.edu/plonejsi18n?domain=widgets&language=ca	http/1.1
/++theme++homeupc/assets/fonts/roboto/KFOjCnqEu92Fr1Mu51T...	http/1.1
/++theme++homeupc/assets/fonts/bootstrap/glyphicons-halfl...	http/1.1
www.upc.edu/cross-domain-bridge.html	http/1.1
www.upc.edu/++theme++homeupc/assets/images/favicon.ico	http/1.1

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: 977 ms

URL	Time Spent
upc.edu/	507 ms
www.upc.edu/	470 ms
www.upc.edu/ca	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

Diagnostics

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 130 ms 19.6 KiB

URL	Transfer Size	Est Savings
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js	175.3 KiB	19.6 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: 130 ms 187.5 KiB

URL	Transfer Size	Est Savings
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.css	150.7 KiB	150.1 KiB
/++theme++homeupc/assets/css/homeupc-compiled.css?version...	26.4 KiB	24.5 KiB
/++theme++homeupc/assets/css/upc.css?version=2026-01-26%2...	16.2 KiB	12.9 KiB

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

Why this matters

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

Source: Google web.dev / Lighthouse

Estimated savings: 210 ms 299.0 KiB

URL	Transfer Size	Est Savings
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js	169.2 KiB	91.9 KiB
www.googletagmanager.com/gtag/js?id=G-SR6Z9ZZ2SJ&cx=c&gtm=4e64k0	157.2 KiB	67.4 KiB
www.googletagmanager.com/gtag/js?id=G-P80Z250TEZ	154.6 KiB	61.9 KiB
app.usercentrics.eu/browser-ui/3.99.0/index.module.js	120.6 KiB	53.1 KiB
app.usercentrics.eu/browser-ui/3.99.0/VirtualServiceItem-e4cab338.js	48.6 KiB	24.8 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.

URL	Transfer Size
/ca/media/destacats-home/carrusel-ranquings/carrusel_2021...	1.0 MiB
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide8.jpeg	920.9 KiB
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide7.jpeg	826.1 KiB
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide6.jpeg	332.6 KiB
/ca/continguts-home/foto-portada/jornades-portes-obertes-...	213.0 KiB
/ca/media/destacats-home/sense-plastic-home-2.png/@@image...	211.1 KiB
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js	176.9 KiB
www.upc.edu/ca/media/destacats-home/carrusel-ranquings/slide5.jpeg	157.5 KiB
www.googletagmanager.com/gtag/js?id=G-SR6Z9ZZ2SJ&cx=c&gtm=4e64k0	157.3 KiB
/ca/continguts-home/promocio/la-upc-a-la-capitalitat-mund...	157.0 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
div.container > div.promo-img > picture > img `div.container > div.promo-img > picture > img`	/ca/continguts-home/promocio/sessions-de-masters-universi...
La UPC, a la CapitalitatMundial de l'Arquitectura 2026 `div.container > div.promo-img > picture > img`	/ca/continguts-home/promocio/la-upc-a-la-capitalitat-mund...
BCN Motor Sport ETSEIB `div.container > div.row > div.col-xs-12 > img.image-inline`	/ca/media/destacats-home/formula-student-home.jpg/@@image...
Viu l'esport `div.container > div.row > div.col-xs-12 > img.image-inline`	/ca/media/destacats-home/esports-femeni-home.jpg/@@images...
div.container > div.row > div.col-xs-12 > img.image-inline `div.container > div.row > div.col-xs-12 > img.image-inline`	/ca/media/destacats-home/sense-plastic-home-2.png/@@image...
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`	/ca/continguts-home/espai-multimedia/upc-la-millor-decisi...
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`	/ca/continguts-home/espai-multimedia/durbec-aero-start-up...
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`	/ca/continguts-home/espai-multimedia/descobreix-el-labora...
Universitat Politècnica de Catalunya BarcelonaTech `a > h1 > span.icona-upc > img`	www.upc.edu/++theme++homeupc/assets/images/Logo.svg

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

●Layout shift culprits

●Optimize DOM size

●Font display

●LCP breakdown

●Optimize viewport for mobile

●Max Potential First Input Delay 60 ms

●Minify CSS

●User Timing marks and measures 10 user timings

●JavaScript execution time 0.5 s

●Minimizes main-thread work 1.3 s

●Avoid long main-thread tasks 2 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 100 ms

●Server Backend Latencies 100 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 100 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○Avoid non-composited animations

Accessibility

ARIA

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Ves al contingut Ves al menú Informació per a... Seu Electrònica Contacte Idi… `div#header-menu > header.main-banner > nav#main-nav > ul.upc-eines`

When an input field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more about input field labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
PRODUCTIVA la UPC, entre les universitats liders de l'Estat pel que fa al seu r… `div > div.container > div#carousel-example-generic > div.carousel-inner`

These are opportunities to improve the usage of ARIA in your application which 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
Rebutja-ho tot `div.sc-cPiKLX > div.sc-koXPp > div.sc-bmzYkS > button.sc-gsFSXq`
Accepta-ho tot `div.sc-cPiKLX > div.sc-koXPp > div.sc-bmzYkS > button.sc-gsFSXq`

These are opportunities to improve the legibility of your content.

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
li.col-md-3 > a.event-img > picture > img `li.col-md-3 > a.event-img > picture > img`
li.col-md-3 > a.event-img > picture > img `li.col-md-3 > a.event-img > picture > img`
li.col-md-3 > a.event-img > picture > img `li.col-md-3 > a.event-img > picture > img`
li.col-md-3 > a.event-img > picture > img `li.col-md-3 > a.event-img > picture > img`
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
section > div.row > div.col-lg-4 > a.a-multimedia `section > div.row > div.col-lg-4 > a.a-multimedia`
section > div.row > div.col-lg-4 > a.a-multimedia `section > div.row > div.col-lg-4 > a.a-multimedia`
section > div.row > div.col-lg-4 > a.a-multimedia `section > div.row > div.col-lg-4 > a.a-multimedia`

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.

○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]`s are contained by their required parent element

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Buttons have an accessible name

●Form elements have associated labels

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●`[accesskey]` values are unique

●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

●ARIA toggle fields have accessible names

●Document has a `<title>` element

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

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

●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

●Touch targets have sufficient size and spacing.

●Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

●`[lang]` attributes have a valid value

●Heading elements appear in a sequentially-descending order

●`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

●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.

○`button`, `link`, and `menuitem` elements have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with the `role=text` attribute do not have focusable descendents.

○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

○Input buttons have discernible text.

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

○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.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`<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

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.

Source	Description
www.upc.edu/ca line 26, col 8	`ReferenceError: uc is not defined at https://www.upc.edu/ca:27:9`

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Map URL
www.upc.edu/++plone++production/++unique++2026-01-26T16:39:10.719273/default.js	/++plone++production/++unique++2026-01-26T16:39:10.719273...

●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

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

SEO

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.

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
li.col-md-3 > a.event-img > picture > img `li.col-md-3 > a.event-img > picture > img`
li.col-md-3 > a.event-img > picture > img `li.col-md-3 > a.event-img > picture > img`
li.col-md-3 > a.event-img > picture > img `li.col-md-3 > a.event-img > picture > img`
li.col-md-3 > a.event-img > picture > img `li.col-md-3 > a.event-img > picture > img`
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`
div.col-lg-4 > a.a-multimedia > div.news-video > img `div.col-lg-4 > a.a-multimedia > div.news-video > img`

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

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

Results for https://upc.edu

Site Health

How you compare

Top Priorities (5)

Fix Priority Matrix

Quick Wins

Strategic

Easy Improvements

Deprioritize

What fixing these means

Conversion Barriers

Speed (2)

Trust (2)

Content (1)

Navigation (3)

Return on Investment

Investment

Monthly returns

Regulatory risk avoided

Payback period

Estimated Remediation Cost

Cost by category

Cost by effort level

What Inaction Is Costing You

Compliance Risk

Bandwidth Waste

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

ARIA

Contrast

Names and labels

Best practices

Best Practices

General

SEO

Content Best Practices

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

ARIA

Contrast

Names and labels

Best Practices

General

SEO

Content Best Practices

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