D — https://up.pt | BeaverCheck Audit

Site Health

Score: 65 / 100

Based on 6 categories, 0 sections

Decent speed, but optimizing further could improve engagement.

Good foundation, but a few gaps could be exploited.

Major barriers for users with disabilities — up to 15% of your audience.

Good server performance with room for optimization.

Mostly compliant — a few items need attention.

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%Infrastructure 10%Compliance 8%Sustainability 2%

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

How the composite score is calculated

How you compare

Google Search Console · 2894 peers

You 65

Avg 73

-8 below average

0 50 100

See full Google Search Console benchmark →

HSTS · 1871 peers

You 65

Avg 74

-9 below average

0 50 100

See full HSTS benchmark →

Top Priorities (5)

Page weighs 6.7 MB (5.8 MB transferred)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Budget

No favicon or icon links detected

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

Accessibility › Favicon & Branding

53 third-party resources (100% of weight)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Inventory

Cross-Origin-Embedder-Policy header is missing

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

Security › Security Headers

Cross-Origin-Opener-Policy header is missing

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

Security › Security Headers

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 →

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Markdown

[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fup.pt)](https://beavercheck.com/results/b5d09c9c-f4b5-4b4e-ba13-4f5fad244bb2)

HTML

<a href="https://beavercheck.com/results/b5d09c9c-f4b5-4b4e-ba13-4f5fad244bb2"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fup.pt" alt="BeaverCheck Score"></a>

Image URL

https://beavercheck.com/badge?url=https%3A%2F%2Fup.pt

This badge auto-updates with your latest scan result.

What fixing these means

Your site has several issues that may be affecting user experience and business outcomes. Your LCP of 25.9s exceeds Google's 2.5s 'Good' threshold and the 2 performance issues below directly contribute 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 conversion rate.

Your LCP is 25.9s — fixing the 2 performance criticals could bring it under Google's 2.5s 'Good' threshold.

1 accessibility issue excludes users who rely on assistive technology.

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

Could reach Estimate based on resolving critical issues

Conversion Barriers

3 critical 2 warning

5 barrier(s) likely increasing bounce by ~34%.

Speed (1)

Page takes 25.9s to load

+12% bounce

Users abandon at ~3s — you're 23.4s over the 2.5s threshold

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

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

Usability (2)

Severe layout shift during page load

+6% bounce

Users mis-click when content jumps — converting intent into frustration

Fix: Reserve space for images, ads, and embeds with explicit width/height

No viewport meta tag

+15% bounce

Mobile browsers render at desktop width and shrink — text unreadable, tap targets miniature

Fix: Add <meta name="viewport" content="width=device-width, initial-scale=1">

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

Return on Investment

€293 investment → €1.35/month returns + EUR 120,000,000 risk avoided

Payback period: > 2 years First-year ROI: -94%

Investment

€293

6h · 5 findings

Monthly returns

€1.35 /mo

~€16 / year

Bandwidth savings €1.35

Regulatory risk avoided

EUR 120,000,000

if kept compliant

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

€45 — 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

€293

6.5 developer hours at €45/hr

Based on Portugal rates (€45/hr)

Quick wins

€45 2 fixes in ~60 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

€10,000,001 / month at risk

~€120,000,016 / year if left unfixed

Compliance Risk

€120,000,000

ePrivacy DirectiveRGPD

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

+2 more

Bandwidth Waste

€1.35 /mo

18207.2 MB/mo × 0.074 EUR/GB

Optimize transfer: save ~1.8 MB per page load
Saves €1.35/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 2 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.

2.75 s

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

25.90 s

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

128 ms

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

0.373

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

7.25 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.

26.15 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
/portal/media/images/dia-da-universidade-2026-sessao-sole...	18000.0 s	768.7 KiB
/portal/media/images/estudantes-feup-auditorio-2024_desta...	18000.0 s	613.2 KiB
/portal/media/images/slide-estudantes-esep-biblioteca-202...	18000.0 s	609.4 KiB
/portal/media/images/estudantes-feup-2024-igualdade_05_de...	18000.0 s	502.1 KiB
/portal/media/images/estudantes-esep-parque-2025_01_slide...	18000.0 s	501.9 KiB
www.up.pt/portal/media/images/gateway-estudantes-uporto.format-jpeg.jpg	18000.0 s	449.2 KiB
www.up.pt/portal/static/images/img_minerva_footer.png	18000.0 s	416.0 KiB
www.up.pt/portal/media/images/banner-pos-graduacoes-2024.format-jpeg.jpg	18000.0 s	316.5 KiB
www.up.pt/portal/media/images/reitor_destaque.format-jpeg.jpg	18000.0 s	286.5 KiB
www.up.pt/portal/static/css/font-awesome/webfonts/fa-solid-900.woff2	18000.0 s	146.8 KiB
www.up.pt/portal/media/images/gate-profissionais_02.format-jpeg.jpg	18000.0 s	140.4 KiB
www.up.pt/portal/media/images/gate-estudantes-internacionais.format-jpeg.jpg	18000.0 s	135.7 KiB
www.up.pt/portal/media/images/gate-juniores_YQraUVq.format-jpeg.jpg	18000.0 s	127.3 KiB
www.up.pt/portal/media/images/gate-alumni.format-jpeg.jpg	18000.0 s	110.5 KiB
www.up.pt/portal/static/css/font-awesome/webfonts/fa-brands-400.woff2	18000.0 s	107.5 KiB
www.up.pt/portal/media/images/investigar-home_destaque.format-jpeg.jpg	18000.0 s	78.6 KiB
www.up.pt/portal/static/fonts/Lato/Lato-Light.ttf	18000.0 s	75.7 KiB
www.up.pt/portal/static/fonts/Lato/Lato-Regular.ttf	18000.0 s	73.6 KiB
www.up.pt/portal/static/js/jquery/jquery-ui.min.js	18000.0 s	72.8 KiB
www.up.pt/portal/static/fonts/Lato/Lato-Bold.ttf	18000.0 s	71.9 KiB
www.up.pt/portal/static/fonts/Lato/Lato-Black.ttf	18000.0 s	68.1 KiB
www.up.pt/portal/static/css/project.min.css	18000.0 s	40.9 KiB
www.up.pt/portal/static/js/jquery/jquery.min.js	18000.0 s	32.6 KiB
www.up.pt/portal/static/css/font-awesome/webfonts/fa-regular-400.woff2	18000.0 s	24.2 KiB
www.up.pt/portal/static/css/font-awesome/css/all.min.css	18000.0 s	24.1 KiB
www.up.pt/portal/static/js/bootstrap/bootstrap.bundle.min.js	18000.0 s	22.5 KiB
www.up.pt/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?	14400.0 s	12.0 KiB
www.up.pt/portal/static/js/slick/slick.min.js	18000.0 s	10.5 KiB
www.up.pt/portal/static/js/cookieconsent-config.js	18000.0 s	10.1 KiB
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...	86400.0 s	10.7 KiB
www.up.pt/portal/static/css/cookieconsent.min.css	18000.0 s	5.8 KiB
www.up.pt/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js	2871.0 s	4.0 KiB
www.up.pt/portal/static/js/project.js	18000.0 s	4.7 KiB
www.up.pt/portal/static/mobile-sidebar/base.css	18000.0 s	1.3 KiB
www.up.pt/portal/static/mobile-sidebar/secondary-mobile-sidebar/base.css	18000.0 s	1.2 KiB
www.up.pt/portal/static/mobile-sidebar/zeynep.min.js	18000.0 s	1.2 KiB
www.up.pt/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js	2871.0 s	763 B
www.up.pt/portal/static/css/slick/slick.css	18000.0 s	859 B
www.up.pt/portal/static/mobile-sidebar/secondary-mobile-sidebar/zeynep.min.css	18000.0 s	783 B
www.up.pt/portal/static/mobile-sidebar/zeynep.min.css	18000.0 s	776 B
www.up.pt/portal/static/images/svgs/ChevronLeftLittle.svg	18000.0 s	501 B
www.up.pt/portal/static/images/svgs/ChevronRightLittle.svg	18000.0 s	476 B
www.up.pt/portal/static/mobile-sidebar/submenu-arrow.svg	18000.0 s	461 B
www.up.pt/portal/static/mobile-sidebar/secondary-mobile-sidebar/right.css	18000.0 s	406 B

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]

items: [map[node:map[type:text value:Total] score:0.373344] map[node:map[boundingRect:map[bottom:1459 height:987 left:0 right:412 top:472 width:412] lhId:page-12-SECTION nodeLabel:Study Your future is here! Gathering the most complete offer of training progr… path:1,HTML,1,BODY,4,MAIN,1,DIV,3,SECTION selector:body.site-body-up > main#main-content > div.hp-uporto > section.mt-fix snippet:<section class="mt-fix"> type:node] score:0.362232] map[node:map[boundingRect:map[bottom:971 height:86 left:0 right:412 top:885 width:412] lhId:page-11-DIV nodeLabel:Which course are you looking for? path:1,HTML,1,BODY,4,MAIN,1,DIV,3,SECTION,2,SECTION,0,DIV,0,DIV,0,DIV,2,DIV,0,DIV selector:div.row > div.offset-xl-2 > div.row > div.col-12 snippet:<div class="col-12"> type:node] score:0.011112]]

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
www.up.pt/portal/static/css/font-awesome/webfonts/fa-brands-400.woff2	155 ms
www.up.pt/portal/static/css/font-awesome/webfonts/fa-solid-900.woff2	135 ms
www.up.pt/portal/static/css/font-awesome/webfonts/fa-regular-400.woff2	120 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.

	URL	Resource Size	Est Savings
António de Sousa Pereira: “It has been an honour to serve U.Porto.” See More `div.hp-slider > div.slick-list > div.slick-track > div.hp-slider-content`	/portal/media/images/dia-da-universidade-2026-sessao-sole...	768.3 KiB	490.4 KiB
Image U.Porto Students `div#profile0 > div.row > div.col-md-6 > img`	www.up.pt/portal/media/images/gateway-estudantes-uporto.format-jpeg.jpg	448.9 KiB	407.0 KiB
U.Porto enters QS Ranking "Top 250" for the first time See More `div.hp-slider > div.slick-list > div.slick-track > div.hp-slider-content`	/portal/media/images/estudantes-feup-auditorio-2024_desta...	612.8 KiB	394.6 KiB
U.Porto among the 150 most Sustainable Universities in the world See More `div.hp-slider > div.slick-list > div.slick-track > div.hp-slider-content`	/portal/media/images/estudantes-esep-parque-2025_01_slide...	501.5 KiB	354.4 KiB
Leading the Way: U.Porto Tops Portugal in THE 2026 Rankings" See More `div.hp-slider > div.slick-list > div.slick-track > div.hp-slider-content`	/portal/media/images/slide-estudantes-esep-biblioteca-202...	609.0 KiB	331.2 KiB
A University committed to gender equality See More `div.hp-slider > div.slick-list > div.slick-track > div.hp-slider-content`	/portal/media/images/estudantes-feup-2024-igualdade_05_de...	501.7 KiB	283.5 KiB
Excellence in Research See More `div.hp-slider > div.slick-list > div.slick-track > div.hp-slider-content`	www.up.pt/portal/media/images/banner-pos-graduacoes-2024.format-jpeg.jpg	316.1 KiB	184.3 KiB
Election of the Rector of the University of Porto (2026–2030) See More `div.hp-slider > div.slick-list > div.slick-track > div.hp-slider-content`	www.up.pt/portal/media/images/reitor_destaque.format-jpeg.jpg	286.2 KiB	68.0 KiB
Research at the U.Porto `div.offset-xl-2 > div.row > div.col-xl-6 > img.img-fluid`	www.up.pt/portal/media/images/investigar-home_destaque.format-jpeg.jpg	78.3 KiB	62.7 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-9-DIV

nodeLabel: António de Sousa Pereira: “It has been an honour to serve U.Porto.” See More

path: 1,HTML,1,BODY,4,MAIN,1,DIV,2,SECTION,0,DIV,0,DIV,0,DIV,1,DIV

selector: div.hp-slider > div.slick-list > div.slick-track > div.hp-slider-content

snippet: <div class="hp-slider-content slick-slide" style="background-image: url("/portal/media/images/dia-da-universidade-2026-sessa…");" data-slick-index="0" aria-hidden="true" tabindex="-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

value: no origins were preconnected

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
www.up.pt/portal/static/css/cookieconsent.min.css	5.8 KiB
www.up.pt/portal/static/mobile-sidebar/secondary-mobile-sidebar/zeynep.min.css	783 B
www.up.pt/portal/static/css/slick/slick.css	859 B
www.up.pt/portal/static/css/project.min.css	40.9 KiB	300 ms
www.up.pt/portal/static/mobile-sidebar/base.css	1.3 KiB
www.up.pt/portal/static/mobile-sidebar/zeynep.min.css	776 B
www.up.pt/portal/static/css/font-awesome/css/all.min.css	24.1 KiB	150 ms
www.up.pt/portal/static/mobile-sidebar/secondary-mobile-sidebar/base.css	1.2 KiB
www.up.pt/portal/static/mobile-sidebar/secondary-mobile-sidebar/right.css	406 B
www.up.pt/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js	763 B

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

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: 2.0 s

URL	Time Spent
up.pt/	1.1 s
www.up.pt/	883 ms
www.up.pt/portal/en/	0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Element	Layout shift score
Study Your future is here! Gathering the most complete offer of training progr… `body.site-body-up > main#main-content > div.hp-uporto > section.mt-fix`	0.362
Which course are you looking for? `div.row > div.offset-xl-2 > div.row > div.col-12`	0.011

Diagnostics

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 450 ms 60.6 KiB

URL	Transfer Size	Est Savings
www.up.pt/portal/static/css/project.min.css	40.6 KiB	37.1 KiB
www.up.pt/portal/static/css/font-awesome/css/all.min.css	23.8 KiB	23.5 KiB

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

Why this matters

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: 450 ms 63.1 KiB

URL	Transfer Size	Est Savings
www.up.pt/portal/static/js/jquery/jquery-ui.min.js	72.6 KiB	63.1 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Script Evaluation	912 ms
Other	757 ms
Style & Layout	617 ms
Rendering	136 ms
Parse HTML & CSS	114 ms
Script Parsing & Compilation	88 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
/portal/media/images/dia-da-universidade-2026-sessao-sole...	768.7 KiB
/portal/media/images/estudantes-feup-auditorio-2024_desta...	613.2 KiB
/portal/media/images/slide-estudantes-esep-biblioteca-202...	609.4 KiB
/portal/media/images/estudantes-feup-2024-igualdade_05_de...	502.1 KiB
/portal/media/images/estudantes-esep-parque-2025_01_slide...	501.9 KiB
www.up.pt/portal/media/images/gateway-estudantes-uporto.format-jpeg.jpg	449.2 KiB
www.up.pt/portal/static/images/img_minerva_footer.png	416.0 KiB
www.up.pt/portal/media/images/banner-pos-graduacoes-2024.format-jpeg.jpg	316.5 KiB
www.up.pt/portal/media/images/reitor_destaque.format-jpeg.jpg	286.5 KiB
www.up.pt/portal/static/css/font-awesome/webfonts/fa-solid-900.woff2	146.8 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
Image U.Porto Students `div#profile0 > div.row > div.col-md-6 > img`	www.up.pt/portal/media/images/gateway-estudantes-uporto.format-jpeg.jpg
Research at the U.Porto `div.offset-xl-2 > div.row > div.col-xl-6 > img.img-fluid`	www.up.pt/portal/media/images/investigar-home_destaque.format-jpeg.jpg

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

●Max Potential First Input Delay 130 ms

●Optimize DOM size

●Forced reflow

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●JavaScript execution time 0.8 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 130 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 30 ms

○INP breakdown

○User Timing marks and measures

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

ARIA dialog elements without accessible names may prevent screen readers users from discerning the purpose of these elements. Learn how to make ARIA dialog elements more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
We use cookies to offer an optimised browsing experience and to collect informa… `body.site-body-up > div#cc-main > div.cm-wrapper > div.cm`

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
PT `ul > li.mobile-header > div.lang-up > a.text-muted`
See More `div.offset-xl-2 > div.slider-content > div.slider-content-info > a.slider-see-more`
News `div.row > div.offset-xl-2 > div.row > h2.col-sm-8`
All news `div.row > p.ver-mais > a > span`
Campus e Comunidade `div.slider-el > article.card > div.card-body > p.categories`
See More about the University `div.col-xl-5 > p.ver-mais > a > span`
45 research units `div.row > div.col-xl-6 > p > a`
25% of all national scientific output `div.row > div.col-xl-6 > p > a`
leading position the University occupies in the main international rankings of … `div.row > div.col-xl-6 > p > a`
Learn more `div.row > p.ver-mais > a > span`
Frequently asked questions `div.row > div.offset-xl-2 > div.d-flex > h2`
See More `div.col-md-6 > p.ver-mais > a > span`

These are opportunities to improve the legibility of your content.

Names and labels

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
All Bachelor's and Integrated Master’s Degrees Master’s Degrees Doctorates `div.col-xl-8 > form#search_form > div.study-select > select#course-type`
U.Porto Students International Students Prospective Students Professionals Alum… `div.row > div.offset-xl-2 > div.d-block > select`

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
li.has-submenu > div#univ > div.submenu-header > a `li.has-submenu > div#univ > div.submenu-header > a`
li.has-submenu > div#faculdades > div.submenu-header > a `li.has-submenu > div#faculdades > div.submenu-header > a`

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

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-*]` attributes match their roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●`[role]` values are valid

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

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

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●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.

●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

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

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

●Links are distinguishable without relying on color.

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

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

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

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Identical links have the same purpose.

○`[accesskey]` values are unique

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

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○`[role]`s are contained by their required parent element

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

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

○`<frame>` or `<iframe>` elements have a title

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

○Input buttons have discernible text.

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

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

○`<object>` elements have alternate text

○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.

Best Practices

General

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
SharedStorage	www.up.pt/cdn-cgi/challenge-platform/scripts/jsd/main.js
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.	www.up.pt/cdn-cgi/challenge-platform/scripts/jsd/main.js
Fledge	www.up.pt/cdn-cgi/challenge-platform/scripts/jsd/main.js

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No browser errors logged to the console

●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 DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

SEO

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

Content Best Practices

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destination	Link Text
noticias.up.pt/2025/01/03/u-porto-tem-novo-plano-para-a-igualdade-de-genero/	See More
/2026/03/24/antonio-de-sousa-pereira-tem-sido-uma-honra-s...	See More
www.up.pt/portal/pt/eleicao-reitor-2026/	See More
/2025/11/21/universidade-do-porto-entre-as-150-mais-suste...	See More
noticias.up.pt/2025/10/13/u-porto-a-crescer-no-the-world-university-rankings/	See More
/2025/06/19/u-porto-pela-primeira-vez-no-top-250-mundial-...	See More
/2025/04/16/91-das-unidades-de-investigacao-da-u-porto-sa...	See More
noticias.up.pt/2025/01/03/u-porto-tem-novo-plano-para-a-igualdade-de-genero/	See More
/2026/03/24/antonio-de-sousa-pereira-tem-sido-uma-honra-s...	See More
www.up.pt/portal/pt/eleicao-reitor-2026/	See More
/2025/11/21/universidade-do-porto-entre-as-150-mais-suste...	See More
noticias.up.pt/2025/10/13/u-porto-a-crescer-no-the-world-university-rankings/	See More
/2025/06/19/u-porto-pela-primeira-vez-no-top-250-mundial-...	See More
/2025/04/16/91-das-unidades-de-investigacao-da-u-porto-sa...	See More
noticias.up.pt/2025/01/03/u-porto-tem-novo-plano-para-a-igualdade-de-genero/	See 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
Search .cls-… `nav.navbar > div#navbarNav > form#form-search > a.input-group`

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

●Document has a meta description

●Page has successful HTTP status code

●robots.txt is valid

●Image elements have `[alt]` attributes

●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.

987 ms

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

4.80 s

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

0 ms

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

0.132

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

2.28 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.

4.85 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
/portal/media/images/dia-da-universidade-2026-sessao-sole...	18000.0 s	768.8 KiB
/portal/media/images/estudantes-feup-auditorio-2024_desta...	18000.0 s	613.3 KiB
/portal/media/images/slide-estudantes-esep-biblioteca-202...	18000.0 s	609.5 KiB
/portal/media/images/estudantes-feup-2024-igualdade_05_de...	18000.0 s	502.1 KiB
/portal/media/images/estudantes-esep-parque-2025_01_slide...	18000.0 s	501.9 KiB
www.up.pt/portal/media/images/gateway-estudantes-uporto.format-jpeg.jpg	18000.0 s	449.3 KiB
www.up.pt/portal/static/images/img_minerva_footer.png	18000.0 s	416.0 KiB
www.up.pt/portal/media/images/banner-pos-graduacoes-2024.format-jpeg.jpg	18000.0 s	316.5 KiB
www.up.pt/portal/media/images/reitor_destaque.format-jpeg.jpg	18000.0 s	286.6 KiB
www.up.pt/portal/static/css/font-awesome/webfonts/fa-solid-900.woff2	18000.0 s	146.8 KiB
www.up.pt/portal/media/images/gate-profissionais_02.format-jpeg.jpg	18000.0 s	140.4 KiB
www.up.pt/portal/media/images/gate-estudantes-internacionais.format-jpeg.jpg	18000.0 s	135.7 KiB
www.up.pt/portal/media/images/gate-juniores_YQraUVq.format-jpeg.jpg	18000.0 s	127.3 KiB
www.up.pt/portal/media/images/gate-alumni.format-jpeg.jpg	18000.0 s	110.5 KiB
www.up.pt/portal/static/css/font-awesome/webfonts/fa-brands-400.woff2	18000.0 s	107.5 KiB
www.up.pt/portal/media/images/investigar-home_destaque.format-jpeg.jpg	18000.0 s	78.6 KiB
www.up.pt/portal/static/fonts/Lato/Lato-Light.ttf	18000.0 s	75.7 KiB
www.up.pt/portal/static/fonts/Lato/Lato-Regular.ttf	18000.0 s	73.7 KiB
www.up.pt/portal/static/js/jquery/jquery-ui.min.js	18000.0 s	72.8 KiB
www.up.pt/portal/static/fonts/Lato/Lato-Bold.ttf	18000.0 s	72.5 KiB
www.up.pt/portal/static/fonts/Lato/Lato-Black.ttf	18000.0 s	68.1 KiB
www.up.pt/portal/static/images/minerva_01.png	18000.0 s	49.5 KiB
www.up.pt/portal/static/css/project.min.css	18000.0 s	40.9 KiB
www.up.pt/portal/static/js/jquery/jquery.min.js	18000.0 s	32.6 KiB
www.up.pt/portal/static/css/font-awesome/webfonts/fa-regular-400.woff2	18000.0 s	24.2 KiB
www.up.pt/portal/static/css/font-awesome/css/all.min.css	18000.0 s	24.1 KiB
www.up.pt/portal/static/js/bootstrap/bootstrap.bundle.min.js	18000.0 s	22.5 KiB
www.up.pt/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?	14400.0 s	13.1 KiB
www.up.pt/portal/static/js/slick/slick.min.js	18000.0 s	10.5 KiB
www.up.pt/portal/static/js/cookieconsent-config.js	18000.0 s	10.1 KiB
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...	86400.0 s	10.7 KiB
www.up.pt/portal/static/css/cookieconsent.min.css	18000.0 s	5.8 KiB
www.up.pt/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js	2872.0 s	4.0 KiB
www.up.pt/portal/static/js/project.js	18000.0 s	4.7 KiB
www.up.pt/portal/static/mobile-sidebar/base.css	18000.0 s	1.3 KiB
www.up.pt/portal/static/mobile-sidebar/secondary-mobile-sidebar/base.css	18000.0 s	1.2 KiB
www.up.pt/portal/static/mobile-sidebar/zeynep.min.js	18000.0 s	1.2 KiB
www.up.pt/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js	2872.0 s	763 B
www.up.pt/portal/static/css/slick/slick.css	18000.0 s	863 B
www.up.pt/portal/static/mobile-sidebar/secondary-mobile-sidebar/zeynep.min.css	18000.0 s	788 B
www.up.pt/portal/static/mobile-sidebar/zeynep.min.css	18000.0 s	781 B
www.up.pt/portal/static/images/svgs/ChevronLeftLittle.svg	18000.0 s	505 B
www.up.pt/portal/static/images/svgs/ChevronRightLittle.svg	18000.0 s	480 B
www.up.pt/portal/static/mobile-sidebar/submenu-arrow.svg	18000.0 s	465 B
www.up.pt/portal/static/images/svgs/SolidChevronDownLittleGray.svg	18000.0 s	450 B
www.up.pt/portal/static/mobile-sidebar/secondary-mobile-sidebar/right.css	18000.0 s	411 B

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

items: [map[node:map[type:text value:Total] score:0.131509] map[node:map[boundingRect:map[bottom:1515 height:767 left:0 right:1350 top:748 width:1350] lhId:page-11-SECTION nodeLabel:Study Your future is here! Gathering the most complete offer of training progr… path:1,HTML,1,BODY,4,MAIN,1,DIV,3,SECTION selector:body.site-body-up > main#main-content > div.hp-uporto > section.mt-fix snippet:<section class="mt-fix"> type:node] score:0.130496] map[node:map[boundingRect:map[bottom:144 height:107 left:540 right:1223 top:37 width:683] lhId:page-7-DIV nodeLabel:STUDY RESEARCH INNOVATE LIVE EXPLORE Pesquisar Search Pesquisar path:1,HTML,1,BODY,2,HEADER,1,DIV,0,DIV,0,DIV,0,DIV,0,NAV,3,DIV selector:div.row > div.offset-xl-2 > nav.navbar > div#navbarNav snippet:<div class="navbar-nav collapse navbar-collapse justify-content-end d-none d-md-block" id="navbarNav"> type:node] score:0.001013]]

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
www.up.pt/portal/static/css/font-awesome/webfonts/fa-regular-400.woff2	25 ms
www.up.pt/portal/static/css/font-awesome/webfonts/fa-brands-400.woff2	25 ms
www.up.pt/portal/static/css/font-awesome/webfonts/fa-solid-900.woff2	20 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.

	URL	Resource Size	Est Savings
António de Sousa Pereira: “It has been an honour to serve U.Porto.” The Univer… `div.hp-slider > div.slick-list > div.slick-track > div.hp-slider-content`	/portal/media/images/dia-da-universidade-2026-sessao-sole...	768.3 KiB	490.4 KiB
Image U.Porto Students `div#profile0 > div.row > div.col-md-6 > img`	www.up.pt/portal/media/images/gateway-estudantes-uporto.format-jpeg.jpg	448.9 KiB	422.3 KiB
U.Porto among the 150 most Sustainable Universities in the world A rise of 59 … `div.hp-slider > div.slick-list > div.slick-track > div.hp-slider-content`	/portal/media/images/estudantes-esep-parque-2025_01_slide...	501.5 KiB	354.4 KiB
Leading the Way: U.Porto Tops Portugal in THE 2026 Rankings" The prestigious T… `div.hp-slider > div.slick-list > div.slick-track > div.hp-slider-content`	/portal/media/images/slide-estudantes-esep-biblioteca-202...	609.0 KiB	331.2 KiB
A University committed to gender equality The "UP Igualdade" - Plan for Gender… `div.hp-slider > div.slick-list > div.slick-track > div.hp-slider-content`	/portal/media/images/estudantes-feup-2024-igualdade_05_de...	501.7 KiB	283.5 KiB
Research at the U.Porto `div.offset-xl-2 > div.row > div.col-xl-6 > img.img-fluid`	www.up.pt/portal/media/images/investigar-home_destaque.format-jpeg.jpg	78.3 KiB	68.4 KiB
Election of the Rector of the University of Porto (2026–2030) Everything you n… `div.hp-slider > div.slick-list > div.slick-track > div.hp-slider-content`	www.up.pt/portal/media/images/reitor_destaque.format-jpeg.jpg	286.2 KiB	68.0 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-0-DIV

nodeLabel: António de Sousa Pereira: “It has been an honour to serve U.Porto.” The Univer…

path: 1,HTML,1,BODY,4,MAIN,1,DIV,2,SECTION,0,DIV,0,DIV,0,DIV,1,DIV

selector: div.hp-slider > div.slick-list > div.slick-track > div.hp-slider-content

snippet: <div class="hp-slider-content slick-slide" style="background-image: url("/portal/media/images/dia-da-universidade-2026-sessa…");" data-slick-index="0" aria-hidden="true" tabindex="-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.

title: Preconnected origins

value: no origins were preconnected

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
www.up.pt/portal/static/css/project.min.css	40.9 KiB	80 ms
www.up.pt/portal/static/mobile-sidebar/secondary-mobile-sidebar/zeynep.min.css	788 B
www.up.pt/portal/static/css/slick/slick.css	863 B
www.up.pt/portal/static/mobile-sidebar/secondary-mobile-sidebar/right.css	411 B
www.up.pt/portal/static/mobile-sidebar/base.css	1.3 KiB
www.up.pt/portal/static/css/font-awesome/css/all.min.css	24.1 KiB
www.up.pt/portal/static/mobile-sidebar/zeynep.min.css	781 B
www.up.pt/portal/static/mobile-sidebar/secondary-mobile-sidebar/base.css	1.2 KiB
www.up.pt/portal/static/css/cookieconsent.min.css	5.8 KiB
www.up.pt/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js	763 B

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: 815 ms

URL	Time Spent
up.pt/	593 ms
www.up.pt/	221 ms
www.up.pt/portal/en/	0.0 ms

Why this matters

Performance issues directly impact user engagement and conversion rates.

Element	Layout shift score
Study Your future is here! Gathering the most complete offer of training progr… `body.site-body-up > main#main-content > div.hp-uporto > section.mt-fix`	0.130
STUDY RESEARCH INNOVATE LIVE EXPLORE Pesquisar Search Pesquisar `div.row > div.offset-xl-2 > nav.navbar > div#navbarNav`	0.001

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 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: 40 ms 60.2 KiB

URL	Transfer Size	Est Savings
www.up.pt/portal/static/css/project.min.css	40.6 KiB	36.7 KiB
www.up.pt/portal/static/css/font-awesome/css/all.min.css	23.8 KiB	23.5 KiB

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

Why this matters

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

Learn more ▾

Source: Google web.dev / Lighthouse

Estimated savings: 80 ms 63.1 KiB

URL	Transfer Size	Est Savings
www.up.pt/portal/static/js/jquery/jquery-ui.min.js	72.6 KiB	63.1 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
/portal/media/images/dia-da-universidade-2026-sessao-sole...	768.8 KiB
/portal/media/images/estudantes-feup-auditorio-2024_desta...	613.3 KiB
/portal/media/images/slide-estudantes-esep-biblioteca-202...	609.5 KiB
/portal/media/images/estudantes-feup-2024-igualdade_05_de...	502.1 KiB
/portal/media/images/estudantes-esep-parque-2025_01_slide...	501.9 KiB
www.up.pt/portal/media/images/gateway-estudantes-uporto.format-jpeg.jpg	449.3 KiB
www.up.pt/portal/static/images/img_minerva_footer.png	416.0 KiB
www.up.pt/portal/media/images/banner-pos-graduacoes-2024.format-jpeg.jpg	316.5 KiB
www.up.pt/portal/media/images/reitor_destaque.format-jpeg.jpg	286.6 KiB
www.up.pt/portal/static/css/font-awesome/webfonts/fa-solid-900.woff2	146.8 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
Image U.Porto Students `div#profile0 > div.row > div.col-md-6 > img`	www.up.pt/portal/media/images/gateway-estudantes-uporto.format-jpeg.jpg
Research at the U.Porto `div.offset-xl-2 > div.row > div.col-xl-6 > img.img-fluid`	www.up.pt/portal/media/images/investigar-home_destaque.format-jpeg.jpg

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

●Optimize DOM size

●Forced reflow

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Max Potential First Input Delay 40 ms

●Minify CSS

●Minify JavaScript

●JavaScript execution time 0.2 s

●Minimizes main-thread work 0.7 s

●Avoid non-composited animations 1 animated element found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 120 ms

●Server Backend Latencies 20 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 30 ms

○INP breakdown

○User Timing marks and measures

○Avoid long main-thread tasks

Accessibility

ARIA

ARIA dialog elements without accessible names may prevent screen readers users from discerning the purpose of these elements. Learn how to make ARIA dialog elements more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
We use cookies to offer an optimised browsing experience and to collect informa… `body.site-body-up > div#cc-main > div.cm-wrapper > div.cm`

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
PT `div.col-xl-4 > ul.lang-up > li > a.text-muted`
PT `ul > li.mobile-header > div.lang-up > a.text-muted`
See More `div.offset-xl-2 > div.slider-content > div.slider-content-info > a.slider-see-more`
News `div.row > div.offset-xl-2 > div.row > h2.col-sm-8`
All news `div.row > p.ver-mais > a > span`
Campus e Comunidade `div.slider-el > article.card > div.card-body > p.categories`
No Mundo `div.slider-el > article.card > div.card-body > p.categories`
Campus e Comunidade \| Cultura `div.slider-el > article.card > div.card-body > p.categories`
See More about the University `div.col-xl-5 > p.ver-mais > a > span`
45 research units `div.row > div.col-xl-6 > p > a`
25% of all national scientific output `div.row > div.col-xl-6 > p > a`
leading position the University occupies in the main international rankings of … `div.row > div.col-xl-6 > p > a`
Learn more `div.row > p.ver-mais > a > span`
Frequently asked questions `div.row > div.offset-xl-2 > div.d-flex > h2`
International Students `div.d-none > ul#profileTab > li.perfil-up > a#profile-tab-2`
Prospective Students `div.d-none > ul#profileTab > li.perfil-up > a#profile-tab-3`
Professionals `div.d-none > ul#profileTab > li.perfil-up > a#profile-tab-4`
Alumni `div.d-none > ul#profileTab > li.perfil-up > a#profile-tab-5`
See More `div.col-md-6 > p.ver-mais > a > span`

These are opportunities to improve the legibility of your content.

Names and labels

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
All Bachelor's and Integrated Master’s Degrees Master’s Degrees Doctorates `div.col-xl-8 > form#search_form > div.study-select > select#course-type`

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
li.has-submenu > div#univ > div.submenu-header > a `li.has-submenu > div#univ > div.submenu-header > a`
li.has-submenu > div#faculdades > div.submenu-header > a `li.has-submenu > div#faculdades > div.submenu-header > a`

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

○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

●Image elements have `[alt]` attributes

●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.

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

●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

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

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

●Links are distinguishable without relying on color.

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

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

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

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Identical links have the same purpose.

○`[accesskey]` values are unique

○ARIA input fields 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 toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

○`<frame>` or `<iframe>` elements have a title

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

○Input buttons have discernible text.

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

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

○`<object>` elements have alternate text

○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.

Best Practices

General

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
SharedStorage	www.up.pt/cdn-cgi/challenge-platform/scripts/jsd/main.js
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.	www.up.pt/cdn-cgi/challenge-platform/scripts/jsd/main.js
Fledge	www.up.pt/cdn-cgi/challenge-platform/scripts/jsd/main.js

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No browser errors logged to the console

●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 DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

SEO

Content Best Practices

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destination	Link Text
noticias.up.pt/2025/01/03/u-porto-tem-novo-plano-para-a-igualdade-de-genero/	See More
/2026/03/24/antonio-de-sousa-pereira-tem-sido-uma-honra-s...	See More
www.up.pt/portal/pt/eleicao-reitor-2026/	See More
/2025/11/21/universidade-do-porto-entre-as-150-mais-suste...	See More
noticias.up.pt/2025/10/13/u-porto-a-crescer-no-the-world-university-rankings/	See More
/2025/06/19/u-porto-pela-primeira-vez-no-top-250-mundial-...	See More
/2025/04/16/91-das-unidades-de-investigacao-da-u-porto-sa...	See More
noticias.up.pt/2025/01/03/u-porto-tem-novo-plano-para-a-igualdade-de-genero/	See More
/2026/03/24/antonio-de-sousa-pereira-tem-sido-uma-honra-s...	See More
www.up.pt/portal/pt/eleicao-reitor-2026/	See More
/2025/11/21/universidade-do-porto-entre-as-150-mais-suste...	See More
noticias.up.pt/2025/10/13/u-porto-a-crescer-no-the-world-university-rankings/	See More
/2025/06/19/u-porto-pela-primeira-vez-no-top-250-mundial-...	See More
/2025/04/16/91-das-unidades-de-investigacao-da-u-porto-sa...	See More
noticias.up.pt/2025/01/03/u-porto-tem-novo-plano-para-a-igualdade-de-genero/	See More

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

Crawling and Indexing

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Search Pesquisar `nav.navbar > div#navbarNav > form#form-search > a.input-group`

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

●Document has a meta description

●Page has successful HTTP status code

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

○Document has a valid `rel=canonical`

Results for https://up.pt

Site Health

How you compare

Top Priorities (5)

Fix Priority Matrix

Quick Wins

Strategic

Easy Improvements

Deprioritize

What fixing these means

Conversion Barriers

Speed (1)

Trust (2)

Usability (2)

Return on Investment

Investment

Monthly returns

Regulatory risk avoided

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

General

SEO

Content Best Practices

Crawling and Indexing

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

ARIA

Contrast

Names and labels

Best Practices

General

SEO

Content Best Practices

Crawling and Indexing

Keyboard Shortcuts