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

Site Health

Score: 70 / 100

Based on 8 categories, 0 sections

Room to improve — your 32.7s load time is above Google's 2.5s 'Good' threshold.

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.

Solid infrastructure — fast server responses across the board.

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

Drupal · 219 peers

You 70

Avg 73

At average

0 50 100

Better than 4% of Drupal sites See full Drupal benchmark →

Apple · 822 peers

You 70

Avg 73

At average

0 50 100

Better than 13% of Apple sites See full Apple benchmark →

Top Priorities (5)

Content-Security-Policy 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 37.6 MB (31.0 MB transferred)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Budget

1 image(s) missing alt attribute

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

Accessibility › Alt Text Quality

3 button(s) with no accessible text

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

Accessibility › Link & Button 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%2Ftufts.edu)](https://beavercheck.com/results/bb794f49-087e-4fe0-8ec8-c964fff0a4b7)

HTML

<a href="https://beavercheck.com/results/bb794f49-087e-4fe0-8ec8-c964fff0a4b7"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Ftufts.edu" alt="BeaverCheck Score"></a>

Image URL

https://beavercheck.com/badge?url=https%3A%2F%2Ftufts.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 32.7s 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.

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

Your LCP is 32.7s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.

2 accessibility issues exclude users who rely on assistive technology.

Conversion Barriers

3 critical 5 warning

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

Speed (2)

Page takes 32.7s to load

+12% bounce

Users abandon at ~3s — you're 30.2s over the 2.5s threshold

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

Page feels frozen for 1.9s

+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)

10 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

3 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

€510 investment → €7.21/month returns + EUR 500,000 risk avoided

Payback period: > 2 years First-year ROI: -83%

Investment

€510

6h · 5 findings

Monthly returns

€7.21 /mo

~€87 / year

Bandwidth savings €7.21

Regulatory risk avoided

EUR 500,000

if kept compliant

EAA EUR 500,000

€85 — 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

€510

6.0 developer hours at €85/hr

Based on European Union rates (€85/hr)

Quick wins

€85 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

€41,674 / month at risk

~€500,087 / year if left unfixed

Compliance Risk

€500,000

EAA

Skip navigation link is missing (WCAG 2.4.1)
EAA: EUR 1,000 – EUR 500,000
Multiple H1 headings (5 found)
EAA: EUR 1,000 – EUR 500,000
1 image(s) missing alt attribute
EAA: EUR 1,000 – EUR 500,000

Bandwidth Waste

€7.21 /mo

97366.7 MB/mo × 0.074 EUR/GB

Optimize transfer: save ~9.7 MB per page load
Saves €7.21/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.

11.33 s

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

32.68 s

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

1.88 s

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

0.005

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

12.20 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.

33.27 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
/signals/config/1232637663948177?v=2.9.303&r=stable&domai...	1200.0 s	126.6 KiB
cdn.curator.io/5.0/curator.embed.js	0.0 ms	103.1 KiB
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.6 KiB
connect.facebook.net/en_US/bundle/sdk.js/	1200.0 s	77.8 KiB
js.hs-analytics.net/analytics/1776801300000/3860938.js	300.0 s	42.3 KiB
js.hubspot.com/web-interactives-embed.js	600.0 s	28.2 KiB
www.redditstatic.com/ads/pixel.js	60.0 s	19.0 KiB
js.hs-banner.com/3860938.js	300.0 s	18.8 KiB
cdn.curator.io/5.0/curator.embed.css	0.0 ms	14.8 KiB
pixel.byspotify.com/ping.min.js	3600.0 s	10.3 KiB
player.vimeo.com/api/player.js	1800.0 s	9.0 KiB
siteimproveanalytics.com/js/siteanalyze_66356018.js	86400.0 s	19.3 KiB
snap.licdn.com/li.lms-analytics/insight.min.js	86400.0 s	18.7 KiB
connect.facebook.net/en_US/sdk.js	1200.0 s	5.1 KiB
js.ipredictive.com/viant_universal_pixel.js	0.0 ms	3.5 KiB
jumbobeacon.tufts.edu/jumbobeacon-www.min.js	600.0 s	1.9 KiB
cdn.curator.io/published/18ad1038-716d-431d-9038-122f0a69b4aa.js	0.0 ms	1.5 KiB
js.hs-scripts.com/3860938.js	90.0 s	1.0 KiB
/collect?v=2&fmt=js&pid=8038201&time=1776801322580&url=ht...	0.0 ms	693 B
/rp.gif?ts=1776801322549&id=a2_h1akiuktr5gi&event=PageVis...	0.0 ms	666 B
cdn.curator.io/published-css/18ad1038-716d-431d-9038-122f0a69b4aa.css	0.0 ms	474 B
/pixel/?ad_log=referer&action=misc&pixid=849dcd4e-5cfc-4a...	0.0 ms	131 B
/p.css?s=1&k=qnx2aja&ht=tk&f=139.140.173.174.175.176.5474...	604800.0 s	172 B
/p.css?s=1&k=xfa2ead&ht=tk&f=4750.5022.5035.5178.5310.541...	604800.0 s	172 B
/tr/?id=1232637663948177&ev=PageView&dl=https%3A%2F%2Fwww...	0.0 ms	16 B

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:47.352 source:map[column:22 line:19 type:source-location url:https://www.tufts.edu/core/misc/drupal.init.js?v=10.6.7 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:17.317 source:map[column:49615 line:1 type:source-location url:https://www.tufts.edu/core/assets/vendor/jquery/jquery.min.js?v=3.7.1 urlProvider:network]] map[reflowTime:28.23 source:map[column:50335 line:1 type:source-location url:https://www.tufts.edu/core/assets/vendor/jquery/jquery.min.js?v=3.7.1 urlProvider:network]] map[reflowTime:0.267 source:map[column:50393 line:1 type:source-location url:https://www.tufts.edu/core/assets/vendor/jquery/jquery.min.js?v=3.7.1 urlProvider:network]] map[reflowTime:0.143 source:map[column:50457 line:1 type:source-location url:https://www.tufts.edu/core/assets/vendor/jquery/jquery.min.js?v=3.7.1 urlProvider:network]] map[reflowTime:0.184 source:map[column:11455 line:0 type:source-location url:https://www.tufts.edu/themes/custom/tuftsedu_theme/dist/js/header.js?v=1.x urlProvider:network]] map[reflowTime:0.557 source:map[column:6313 line:0 type:source-location url:https://www.tufts.edu/themes/custom/tuftsedu_theme/dist/js/hero-landing.js?v=1.x urlProvider:network]] map[reflowTime:0.505 source:map[column:11917 line:0 type:source-location url:https://www.tufts.edu/themes/custom/tuftsedu_theme/dist/js/hero-landing.js?v=1.x urlProvider:network]] map[reflowTime:0.05 source:map[column:9195 line:0 type:source-location url:https://www.tufts.edu/themes/custom/tuftsedu_theme/dist/js/hero-landing.js?v=1.x urlProvider:network]] map[reflowTime:0.057 source:map[column:922 line:0 type:source-location url:https://www.tufts.edu/themes/custom/tuftsedu_theme/dist/js/text-image-overview.js?v=1.x urlProvider:network]] map[reflowTime:0.042 source:map[column:366 line:0 type:source-location url:https://www.tufts.edu/themes/custom/tuftsedu_theme/dist/js/text-image-overview.js?v=1.x urlProvider:network]]]

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: Play Video

path: 1,HTML,1,BODY,10,DIV,0,DIV,0,DIV,4,MAIN,0,DIV,0,DIV,1,DIV,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,DIV

selector: div.node__content > div.home-hero__standard > div.home-hero__standard--outer > div.video--container

snippet: <div class="video--container video video--home video--standard with-video" 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
use.typekit.net/xfa2ead.css	1.1 KiB	772 ms
use.typekit.net/qnx2aja.css	1.2 KiB	157 ms
fonts.googleapis.com/css?family=Roboto+Slab:300,400,700&display=swap	1.2 KiB	180 ms
/css?family=Roboto:300,300i,400,400i,500,700,700i&display...	2.2 KiB	846 ms
fonts.googleapis.com/css?family=Open+Sans:300i&display=swap	1.7 KiB
/p.css?s=1&k=qnx2aja&ht=tk&f=139.140.173.174.175.176.5474...	172 B	150 ms
/sites/default/files/css/css_eItqtlOTr74Ueu8lAQdiKOdQwOW1...	68.2 KiB	601 ms
/sites/default/files/css/css_HCfp-gYOwPUvp_waPAXa8_vPjvMp...	15.3 KiB
/p.css?s=1&k=xfa2ead&ht=tk&f=4750.5022.5035.5178.5310.541...	172 B	752 ms

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
/af/3058a4/0000000000000000773599a9/30/l?primer=7cdcb44be...	15 ms
/af/1be3c2/00000000000000007735e606/30/l?primer=7cdcb44be...	10 ms
/af/1c7153/0000000000000000773599d9/30/l?primer=7cdcb44be...	10 ms
/af/2555e1/00000000000000007735e603/30/l?primer=7cdcb44be...	5.0 ms
/af/23e139/00000000000000007735e605/30/l?primer=7cdcb44be...	5.0 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
div.paragraph > div.social-embed > div.social-embed-inner > div.social-embed__bg `div.paragraph > div.social-embed > div.social-embed-inner > div.social-embed__bg`	/themes/custom/tuftsedu_theme/src/images/texture_03__flit...	797.4 KiB	470.1 KiB
Image posted by TuftsUniversity to twitter `div.crt-post-c > div > div.crt-grid-post-content > div.crt-grid-post-image`	pbs.twimg.com/media/HGYholxWIAANbYF.jpg:medium	542.5 KiB	410.7 KiB
Students walk up and down a stone staircase flanked by blossoming trees toward … `div.field > div.field__item > picture > img`	/sites/default/files/styles/large_feature_1536x864/public...	307.1 KiB	293.4 KiB
div.home-hero__standard > div.home-hero__standard--outer > div.video--container > video.ambient-video `div.home-hero__standard > div.home-hero__standard--outer > div.video--container > video.ambient-video`	/sites/default/files/styles/large_feature_1140x619/public...	252.2 KiB	237.2 KiB
A professor and a student huddle over a Japanese textbook. `div.field > div.field__item > picture > img`	/sites/default/files/styles/overview_feature_1536x1712/pu...	145.5 KiB	135.0 KiB
A professor and two students sit around a table with a laptop showing a distrib… `div.field > div.field__item > picture > img`	/sites/default/files/styles/multilink_1240x800/public/202...	136.7 KiB	134.4 KiB
Three graduate students in business-casual attire walk through an elevated glas… `div.field > div.field__item > picture > img`	/sites/default/files/styles/multilink_1240x800/public/202...	105.8 KiB	104.0 KiB
Two students wearing lab coats and blue gloves discuss the contents of a Petri … `div.field > div.field__item > picture > img`	/sites/default/files/styles/overview_feature_1536x1712/pu...	90.4 KiB	83.9 KiB
A group of students talk and laugh in a lecture hall before class. `div.field > div.field__item > picture > img`	/sites/default/files/styles/multilink_1240x800/public/202...	62.9 KiB	61.9 KiB
A man holds paint brushes in a painting studio. `div.field > div.field__item > picture > img`	/sites/default/files/styles/featured_media_1536x860/publi...	49.6 KiB	46.1 KiB
Three students stand smiling next to each other outside `article.media > div.field > picture > img`	/sites/default/files/styles/featured_card_940x660/public/...	39.2 KiB	33.3 KiB
Event image `div.events__stage > div.events__image--container > div.event__image > img`	/sites/default/files/styles/event_image_400x325/public/20...	33.6 KiB	26.1 KiB
A man holds a basketball with both hands and looks up toward the hoop `article.media > div.field > picture > img`	/sites/default/files/styles/featured_card_940x660/public/...	29.6 KiB	25.2 KiB
Adam Kinzinger speaks to a group of students while sitting at a table. `article.media > div.field > picture > img`	/sites/default/files/styles/featured_card_940x660/public/...	18.0 KiB	15.3 KiB

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

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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: 756 ms

URL	Time Spent
tufts.edu/	756 ms
www.tufts.edu/	0.0 ms

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

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: 580 ms 86.3 KiB

URL	Transfer Size	Est Savings
/sites/default/files/css/css_eItqtlOTr74Ueu8lAQdiKOdQwOW1...	67.8 KiB	58.2 KiB
/sites/default/files/css/css_HCfp-gYOwPUvp_waPAXa8_vPjvMp...	15.1 KiB	14.3 KiB
cdn.curator.io/5.0/curator.embed.css	14.4 KiB	13.8 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: 4.1 s 845.6 KiB

URL	Transfer Size	Est Savings
fast.wistia.net/assets/external/E-v1.js	161.6 KiB	132.1 KiB
fast.wistia.net/assets/external/E-v1.js	161.6 KiB	121.9 KiB
cdn.curator.io/5.0/curator.embed.js	102.1 KiB	64.8 KiB
www.googletagmanager.com/gtag/js?id=AW-666834536&cx=c&gtm=4e64h1	143.7 KiB	64.6 KiB
www.googletagmanager.com/gtag/js?id=G-3DDNK3T75D&cx=c&gtm=4e64h1	154.0 KiB	64.6 KiB
www.googletagmanager.com/gtag/js?id=G-7QHZNYE3J3&cx=c&gtm=4e64h1	155.9 KiB	64.6 KiB
www.googletagmanager.com/gtag/js?id=AW-780980239	144.7 KiB	63.4 KiB
www.googletagmanager.com/gtag/js?id=DC-14631269&cx=c&gtm=4e64h1	131.1 KiB	57.9 KiB
connect.facebook.net/en_US/bundle/sdk.js/	77.6 KiB	51.8 KiB
www.googletagmanager.com/gtm.js?id=GTM-TLX9SWC	196.5 KiB	48.8 KiB
/signals/config/1232637663948177?v=2.9.303&r=stable&domai...	126.5 KiB	35.3 KiB
connect.facebook.net/en_US/fbevents.js	96.5 KiB	32.6 KiB
www.tufts.edu/core/assets/vendor/jquery/jquery.min.js?v=3.7.1	34.6 KiB	22.1 KiB
browser.sentry-cdn.com/9.6.1/bundle.min.js	24.6 KiB	21.1 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
Unattributable	1.3 s	70 ms	0.0 ms
www.tufts.edu/	1.2 s	19 ms	2.6 ms
www.googletagmanager.com/gtm.js?id=GTM-TLX9SWC	965 ms	771 ms	85 ms
fast.wistia.net/assets/external/E-v1.js	834 ms	609 ms	212 ms
js.hs-analytics.net/analytics/1776801300000/3860938.js	520 ms	401 ms	9.6 ms
/signals/config/1232637663948177?v=2.9.303&r=stable&domai...	336 ms	288 ms	47 ms
cdn.curator.io/5.0/curator.embed.js	336 ms	136 ms	44 ms
www.tufts.edu/core/misc/drupal.init.js?v=10.6.7	294 ms	98 ms	0.2 ms
www.redditstatic.com/ads/pixel.js	282 ms	251 ms	9.7 ms
www.googletagmanager.com/gtag/js?id=DC-14631269&cx=c&gtm=4e64h1	245 ms	211 ms	30 ms
www.googletagmanager.com/gtag/js?id=G-3DDNK3T75D&cx=c&gtm=4e64h1	239 ms	199 ms	37 ms
www.googletagmanager.com/gtag/js?id=AW-666834536&cx=c&gtm=4e64h1	233 ms	197 ms	35 ms
www.googletagmanager.com/gtag/js?id=G-7QHZNYE3J3&cx=c&gtm=4e64h1	229 ms	191 ms	37 ms
connect.facebook.net/en_US/fbevents.js	123 ms	94 ms	28 ms
www.googletagmanager.com/gtag/js?id=AW-780980239	101 ms	62 ms	37 ms
connect.facebook.net/en_US/bundle/sdk.js/	94 ms	73 ms	20 ms
siteimproveanalytics.com/js/siteanalyze_66356018.js	65 ms	43 ms	7.4 ms
cdn.curator.io/published/18ad1038-716d-431d-9038-122f0a69b4aa.js	62 ms	50 ms	0.6 ms
js.hubspot.com/web-interactives-embed.js	51 ms	41 ms	7.8 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	4.0 s
Other	1.9 s
Style & Layout	763 ms
Script Parsing & Compilation	743 ms
Rendering	322 ms
Parse HTML & CSS	160 ms
Garbage Collection	83 ms

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: 20 ms 27.6 KiB

URL	Transfer Size	Est Savings
www.tufts.edu/core/misc/ajax.js?v=10.6.7	20.2 KiB	14.2 KiB
www.tufts.edu/core/misc/drupal.js?v=10.6.7	7.1 KiB	5.6 KiB
www.tufts.edu/core/misc/position.js?v=10.6.7	6.6 KiB	3.6 KiB
www.tufts.edu/core/misc/displace.js?v=10.6.7	2.9 KiB	2.1 KiB
www.tufts.edu/core/misc/dialog/dialog.ajax.js?v=10.6.7	3.4 KiB	2.0 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
www.tufts.edu/sites/default/files/video/250325_BannerTuftsedu.mp4	24.9 MiB
/themes/custom/tuftsedu_theme/src/images/texture_03__flit...	798.3 KiB
pbs.twimg.com/media/HGYholxWIAANbYF.jpg:medium	543.3 KiB
/sites/default/files/styles/large_feature_1536x864/public...	307.7 KiB
www.tufts.edu/	258.0 KiB
/sites/default/files/styles/large_feature_1140x619/public...	252.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-TLX9SWC	196.8 KiB
fast.wistia.net/assets/external/E-v1.js	162.1 KiB
www.googletagmanager.com/gtag/js?id=G-7QHZNYE3J3&cx=c&gtm=4e64h1	156.0 KiB
www.googletagmanager.com/gtag/js?id=G-3DDNK3T75D&cx=c&gtm=4e64h1	154.1 KiB

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

●Layout shift culprits

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●User Timing marks and measures 15 user timings

●Avoid long main-thread tasks 20 long tasks found

●Avoid non-composited animations 3 animated elements found

●Image elements have explicit `width` and `height`

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 100 ms

●Server Backend Latencies 1,200 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 0 ms

●Avoid large layout shifts 4 layout shifts found

○INP breakdown

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Navigation

A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the `tabindex` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Skip to main content `body.path-frontpage > a.visually-hidden`

These are opportunities to improve keyboard navigation in your application.

○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]` values are valid

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

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

●Buttons have an accessible name

●Image elements have `[alt]` attributes

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

●`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

●Background and foreground colors have a sufficient contrast ratio

●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.

●Links have a discernible name

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

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

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●`<video>` elements contain a `<track>` element with `[kind="captions"]`

●Identical links have the same purpose.

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

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

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

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

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

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

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

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

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

○ARIA IDs are unique

○No form fields have multiple labels

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

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

○Input buttons have discernible text.

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

○Form elements have associated labels

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

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

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

○`[lang]` attributes have a valid value

○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.

○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
AttributionReporting	connect.facebook.net/en_US/fbevents.js line 279, col 769

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source Description

Source	Description
www.tufts.edu/core/misc/drupal.js?v=10.6.7 line 63, col 6	TypeError: Failed to execute 'observe' on 'MutationObserver': parameter 1 is not of type 'Node'. at Object.attach (https://www.tufts.edu/themes/custom/tuftsedu_theme/dist/js/forms.js?v=1.x:1:8884) at https://www.tufts.edu/core/misc/drupal.js?v=10.6.7:166:24 at Array.forEach (<anonymous>) at Drupal.attachBehaviors (https://www.tufts.edu/core/misc/drupal.js?v=10.6.7:162:34) at https://www.tufts.edu/core/misc/drupal.init.js?v=10.6.7:32:12 at HTMLDocument.listener (https://www.tufts.edu/core/misc/drupal.init.js?v=10.6.7:20:7)

www.tufts.edu/core/misc/drupal.js?v=10.6.7 line 63, col 6

TypeError: Failed to execute 'observe' on 'MutationObserver': parameter 1 is not of type 'Node'.
    at Object.attach (https://www.tufts.edu/themes/custom/tuftsedu_theme/dist/js/forms.js?v=1.x:1:8884)
    at https://www.tufts.edu/core/misc/drupal.js?v=10.6.7:166:24
    at Array.forEach (<anonymous>)
    at Drupal.attachBehaviors (https://www.tufts.edu/core/misc/drupal.js?v=10.6.7:162:34)
    at https://www.tufts.edu/core/misc/drupal.init.js?v=10.6.7:32:12
    at HTMLDocument.listener (https://www.tufts.edu/core/misc/drupal.init.js?v=10.6.7:20:7)

●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 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
www.tufts.edu/academics	Learn more
www.tufts.edu/research	Learn more
now.tufts.edu/2026/04/07/art-became-his-language	Read more
alumniandfriends.tufts.edu/giving-to-tufts	Learn 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
Menu `div.mm-panels > div#mm-1 > div.mm-navbar > a.mm-navbar__title`

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.

1.22 s

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

1.89 s

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

114 ms

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

0.061

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

2.83 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.

6.64 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.

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:0.824 source:map[column:200986 line:2 type:source-location url:https://cdn.curator.io/5.0/curator.embed.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:81.523 source:map[type:text value:[unattributed]]] map[reflowTime:0.455 source:map[column:86058 line:18 type:source-location url:https://js.hs-analytics.net/analytics/1776801300000/3860938.js urlProvider:network]] map[reflowTime:0.824 source:map[column:78715 line:1 type:source-location url:https://cdn.curator.io/5.0/curator.embed.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
div.home-hero__standard > div.home-hero__standard--outer > div.video--container > video.ambient-video `div.home-hero__standard > div.home-hero__standard--outer > div.video--container > video.ambient-video`	/sites/default/files/styles/large_feature_1140x619/public...	252.2 KiB	144.3 KiB
A professor and a student huddle over a Japanese textbook. `div.field > div.field__item > picture > img`	/sites/default/files/styles/overview_feature_842x922/publ...	65.1 KiB	23.9 KiB
Two students wearing lab coats and blue gloves discuss the contents of a Petri … `div.field > div.field__item > picture > img`	/sites/default/files/styles/overview_feature_842x922/publ...	52.3 KiB	19.2 KiB
Event image `div.events__stage > div.events__image--container > div.event__image > img`	/sites/default/files/styles/event_image_400x325/public/20...	33.6 KiB	12.4 KiB
A sign reading “Tufts University Founded 1852” next to a tree with pink flowers `div.field > div.field__item > picture > img`	/sites/default/files/styles/menu_image_486x378_/public/20...	41.2 KiB	11.3 KiB
A graduate student and faculty member in the sciences sit and talk, surrounded … `div.field > div.field__item > picture > img`	/sites/default/files/styles/menu_image_486x378_/public/20...	38.3 KiB	8.4 KiB
Two students sit at separate desks, working on laptops while facing a window. O… `div.field > div.field__item > picture > img`	/sites/default/files/styles/menu_image_486x378_/public/20...	36.4 KiB	6.5 KiB
An aerial view of the roof of Tisch Library and the Boston skyline under a clea… `div.field > div.field__item > picture > img`	/sites/default/files/styles/menu_image_486x378_/public/20...	36.3 KiB	6.4 KiB
Students walk through the hallways between classes at the Cummings Center durin… `div.field > div.field__item > picture > img`	/sites/default/files/styles/menu_image_486x378_/public/20...	36.2 KiB	6.3 KiB
Four students cluster around a laptop at a workbench. `div.field > div.field__item > picture > img`	/sites/default/files/styles/secondary_image_290x225/publi...	15.2 KiB	4.6 KiB
Three students examine a brown and white horse in a barn. `div.field > div.field__item > picture > img`	/sites/default/files/styles/secondary_image_290x225/publi...	15.0 KiB	4.3 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-VIDEO

nodeLabel: div.home-hero__standard > div.home-hero__standard--outer > div.video--container > video.ambient-video

path: 1,HTML,1,BODY,10,DIV,0,DIV,0,DIV,4,MAIN,0,DIV,0,DIV,1,DIV,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,DIV,0,VIDEO

selector: div.home-hero__standard > div.home-hero__standard--outer > div.video--container > video.ambient-video

snippet: <video class="ambient-video" src="/sites/default/files/video/250325_BannerTuftsedu.mp4" poster="https://www.tufts.edu/sites/default/files/styles/large_feature_1140x619/pu…" loop="" autoplay="" muted="" tabindex="-1" playsinline="">

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
fonts.googleapis.com/css?family=Roboto+Slab:300,400,700&display=swap	1.3 KiB
fonts.googleapis.com/css?family=Open+Sans:300i&display=swap	1.6 KiB
/css?family=Roboto:300,300i,400,400i,500,700,700i&display...	2.2 KiB	247 ms
/p.css?s=1&k=xfa2ead&ht=tk&f=4750.5022.5035.5178.5310.541...	172 B	221 ms
/p.css?s=1&k=qnx2aja&ht=tk&f=139.140.173.174.175.176.5474...	172 B
use.typekit.net/qnx2aja.css	1.2 KiB
use.typekit.net/xfa2ead.css	1.1 KiB	209 ms
/sites/default/files/css/css_HCfp-gYOwPUvp_waPAXa8_vPjvMp...	15.3 KiB
/sites/default/files/css/css_eItqtlOTr74Ueu8lAQdiKOdQwOW1...	68.2 KiB

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
/signals/config/1232637663948177?v=2.9.303&r=stable&domai...	1200.0 s	126.5 KiB
cdn.curator.io/5.0/curator.embed.js	0.0 ms	103.1 KiB
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.6 KiB
connect.facebook.net/en_US/bundle/sdk.js/	1200.0 s	77.8 KiB
js.hs-analytics.net/analytics/1776801300000/3860938.js	300.0 s	42.3 KiB
js.hubspot.com/web-interactives-embed.js	600.0 s	28.2 KiB
www.redditstatic.com/ads/pixel.js	60.0 s	19.0 KiB
js.hs-banner.com/3860938.js	300.0 s	18.8 KiB
cdn.curator.io/5.0/curator.embed.css	0.0 ms	14.8 KiB
pixel.byspotify.com/ping.min.js	3600.0 s	10.2 KiB
player.vimeo.com/api/player.js	1800.0 s	9.0 KiB
siteimproveanalytics.com/js/siteanalyze_66356018.js	86400.0 s	19.3 KiB
snap.licdn.com/li.lms-analytics/insight.min.js	86400.0 s	18.7 KiB
connect.facebook.net/en_US/sdk.js	1200.0 s	5.1 KiB
js.ipredictive.com/viant_universal_pixel.js	0.0 ms	3.5 KiB
jumbobeacon.tufts.edu/jumbobeacon-www.min.js	600.0 s	1.9 KiB
cdn.curator.io/published/18ad1038-716d-431d-9038-122f0a69b4aa.js	0.0 ms	1.5 KiB
js.hs-scripts.com/3860938.js	90.0 s	1.0 KiB
/collect?v=2&fmt=js&pid=8038201&time=1776801343338&url=ht...	0.0 ms	697 B
/rp.gif?ts=1776801343286&id=a2_h1akiuktr5gi&event=PageVis...	0.0 ms	666 B
cdn.curator.io/published-css/18ad1038-716d-431d-9038-122f0a69b4aa.css	0.0 ms	473 B
/pixel/?ad_log=referer&action=misc&pixid=849dcd4e-5cfc-4a...	0.0 ms	131 B
/p.css?s=1&k=xfa2ead&ht=tk&f=4750.5022.5035.5178.5310.541...	604800.0 s	172 B
/p.css?s=1&k=qnx2aja&ht=tk&f=139.140.173.174.175.176.5474...	604800.0 s	172 B
/tr/?id=1232637663948177&ev=PageView&dl=https%3A%2F%2Fwww...	0.0 ms	16 B

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
/af/1c7153/0000000000000000773599d9/30/l?primer=7cdcb44be...	20 ms
/af/3058a4/0000000000000000773599a9/30/l?primer=7cdcb44be...	15 ms
/af/23e139/00000000000000007735e605/30/l?primer=7cdcb44be...	15 ms
/af/2555e1/00000000000000007735e603/30/l?primer=7cdcb44be...	5.0 ms

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: 212 ms

URL	Time Spent
tufts.edu/	212 ms
www.tufts.edu/	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

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: 120 ms 80.5 KiB

URL	Transfer Size	Est Savings
/sites/default/files/css/css_eItqtlOTr74Ueu8lAQdiKOdQwOW1...	67.8 KiB	52.3 KiB
/sites/default/files/css/css_HCfp-gYOwPUvp_waPAXa8_vPjvMp...	15.1 KiB	14.5 KiB
cdn.curator.io/5.0/curator.embed.css	14.4 KiB	13.8 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	1.0 s
Other	592 ms
Style & Layout	293 ms
Script Parsing & Compilation	165 ms
Rendering	115 ms
Parse HTML & CSS	39 ms
Garbage Collection	27 ms

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: 0.0 ms 27.6 KiB

URL	Transfer Size	Est Savings
www.tufts.edu/core/misc/ajax.js?v=10.6.7	20.2 KiB	14.2 KiB
www.tufts.edu/core/misc/drupal.js?v=10.6.7	7.1 KiB	5.6 KiB
www.tufts.edu/core/misc/position.js?v=10.6.7	6.6 KiB	3.6 KiB
www.tufts.edu/core/misc/displace.js?v=10.6.7	2.9 KiB	2.1 KiB
www.tufts.edu/core/misc/dialog/dialog.ajax.js?v=10.6.7	3.4 KiB	2.0 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: 0.0 ms 685.1 KiB

URL	Transfer Size	Est Savings
fast.wistia.net/assets/external/E-v1.js	122.1 KiB	91.9 KiB
cdn.curator.io/5.0/curator.embed.js	102.1 KiB	64.8 KiB
www.googletagmanager.com/gtag/js?id=G-3DDNK3T75D&cx=c&gtm=4e64h1	154.0 KiB	64.8 KiB
www.googletagmanager.com/gtag/js?id=G-7QHZNYE3J3&cx=c&gtm=4e64h1	155.9 KiB	64.7 KiB
www.googletagmanager.com/gtag/js?id=AW-666834536&cx=c&gtm=4e64h1	143.7 KiB	64.6 KiB
www.googletagmanager.com/gtag/js?id=AW-780980239	144.5 KiB	63.7 KiB
www.googletagmanager.com/gtag/js?id=DC-14631269&cx=c&gtm=4e64h1	131.1 KiB	57.9 KiB
connect.facebook.net/en_US/bundle/sdk.js/	77.6 KiB	51.8 KiB
www.googletagmanager.com/gtm.js?id=GTM-TLX9SWC	196.5 KiB	48.9 KiB
/signals/config/1232637663948177?v=2.9.303&r=stable&domai...	126.4 KiB	35.5 KiB
connect.facebook.net/en_US/fbevents.js	96.5 KiB	33.4 KiB
www.tufts.edu/core/assets/vendor/jquery/jquery.min.js?v=3.7.1	34.6 KiB	22.1 KiB
browser.sentry-cdn.com/9.6.1/bundle.min.js	24.6 KiB	21.1 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
www.tufts.edu/sites/default/files/video/250325_BannerTuftsedu.mp4	27.6 MiB
pbs.twimg.com/media/HGDg_EuWcAAk_n4.jpg:medium	934.5 KiB
/themes/custom/tuftsedu_theme/src/images/texture_03__flit...	798.5 KiB
pbs.twimg.com/media/HGYholxWIAANbYF.jpg:medium	543.0 KiB
www.tufts.edu/	258.0 KiB
/sites/default/files/styles/large_feature_1140x619/public...	252.8 KiB
/sites/default/files/styles/large_feature_1250x726/public...	245.5 KiB
www.googletagmanager.com/gtm.js?id=GTM-TLX9SWC	196.8 KiB
fast.wistia.net/assets/external/E-v1.js	162.1 KiB
www.googletagmanager.com/gtag/js?id=G-7QHZNYE3J3&cx=c&gtm=4e64h1	156.0 KiB

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

●Max Potential First Input Delay 90 ms

●Layout shift culprits

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●User Timing marks and measures 15 user timings

●JavaScript execution time 1.0 s

●Avoid long main-thread tasks 7 long tasks found

●Avoid non-composited animations 3 animated elements found

●Image elements have explicit `width` and `height`

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 100 ms

●Server Backend Latencies 1,220 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 0 ms

●Avoid large layout shifts 3 layout shifts found

○INP breakdown

Accessibility

ARIA

Focusable descendents within an `[aria-hidden="true"]` element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how `aria-hidden` affects focusable elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Resources For `nav#block-resourcesfor > ul.menu > li.menu-item > button#btn-resources-for`
Current Students Faculty & Staff Parents Neighbors Alumni & Friends `nav#block-resourcesfor > ul.menu > li.menu-item > ul.menu`
Schools and Colleges School of Arts and Sciences Graduate School of Arts and Sc… `div.container > ul.menu > li.menu-item > div#dm_5792.186232699563`
Undergraduate Admissions Graduate Admissions Pre-College Admissions Financial A… `div.container > ul.menu > li.menu-item > div#dm_5645.290876240323`
Tufts Solutions Centers and Institutes Libraries and Collections Opportunities … `div.container > ul.menu > li.menu-item > div#dm_3041.191296736316`
Athletics Civic Engagement Creativity and the Arts Undergraduate Student Life I… `div.container > ul.menu > li.menu-item > div#dm_22.05956243474531`
Mission and Vision University Leadership Office of the President Commitment to … `div.container > ul.menu > li.menu-item > div#dm_7078.86709656205`

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.

Navigation

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Skip to main content `body.path-frontpage > a.visually-hidden`

These are opportunities to improve keyboard navigation in your application.

○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]` values are valid

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

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

●Buttons have an accessible name

●Image elements have `[alt]` attributes

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

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

●ARIA attributes are used as specified for the element's role

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●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.

●Links have a discernible name

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

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

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●`<video>` elements contain a `<track>` element with `[kind="captions"]`

●Uses ARIA roles only on compatible elements

●Identical links have the same purpose.

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

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

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

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

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

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

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

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

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

○ARIA IDs are unique

○No form fields have multiple labels

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

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

○Input buttons have discernible text.

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

○Form elements have associated labels

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

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

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

○`[lang]` attributes have a valid value

○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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source Description

Source	Description
www.tufts.edu/core/misc/drupal.js?v=10.6.7 line 63, col 6	TypeError: Failed to execute 'observe' on 'MutationObserver': parameter 1 is not of type 'Node'. at Object.attach (https://www.tufts.edu/themes/custom/tuftsedu_theme/dist/js/forms.js?v=1.x:1:8884) at https://www.tufts.edu/core/misc/drupal.js?v=10.6.7:166:24 at Array.forEach (<anonymous>) at Drupal.attachBehaviors (https://www.tufts.edu/core/misc/drupal.js?v=10.6.7:162:34) at https://www.tufts.edu/core/misc/drupal.init.js?v=10.6.7:32:12 at HTMLDocument.listener (https://www.tufts.edu/core/misc/drupal.init.js?v=10.6.7:20:7)

www.tufts.edu/core/misc/drupal.js?v=10.6.7 line 63, col 6

TypeError: Failed to execute 'observe' on 'MutationObserver': parameter 1 is not of type 'Node'.
    at Object.attach (https://www.tufts.edu/themes/custom/tuftsedu_theme/dist/js/forms.js?v=1.x:1:8884)
    at https://www.tufts.edu/core/misc/drupal.js?v=10.6.7:166:24
    at Array.forEach (<anonymous>)
    at Drupal.attachBehaviors (https://www.tufts.edu/core/misc/drupal.js?v=10.6.7:162:34)
    at https://www.tufts.edu/core/misc/drupal.init.js?v=10.6.7:32:12
    at HTMLDocument.listener (https://www.tufts.edu/core/misc/drupal.init.js?v=10.6.7:20:7)

●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 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
www.tufts.edu/academics	Learn more
www.tufts.edu/research	Learn more
now.tufts.edu/2026/04/07/art-became-his-language	Read more
alumniandfriends.tufts.edu/giving-to-tufts	Learn 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
Menu `div.mm-panels > div#mm-1 > div.mm-navbar > a.mm-navbar__title`

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://tufts.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

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

Navigation

Best Practices

General

SEO

Content Best Practices

Crawling and Indexing

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

ARIA

Navigation

Best Practices

General

SEO

Content Best Practices

Crawling and Indexing

Keyboard Shortcuts