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Scanned
2026-04-21 22:54 UTC
Worker
🇳🇱 Amsterdam
Duration
2.4m
Vs prev

Audit overview

3 categories need attention: Security, and 2 others.

Fix Priority Matrix

5 findings

Quick Wins

3

High impact, low effort — start here.

Strategic

2

High impact, requires investment.

Easy Improvements

0

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

0

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →

Screenshots

DESKTOP + MOBILE
Desktop
Desktop screenshot
Mobile
Mobile screenshot

Top Priorities (5)

Sorted by impact
Critical: 1

Content-Security-Policy header is missing

Without a CSP, a single XSS bug can exfiltrate everything your users type — including credentials.

Security › Security Headers
Critical: 2

HSTS header is missing

Without HSTS, a network attacker can downgrade the very first connection to HTTP and steal the user's session.

Security › Security Headers
Critical: 3

No Content-Security-Policy header found

Without a CSP, a single XSS bug can exfiltrate everything users type — credentials, payment data, session tokens.

Security › Content Security Policy
Critical: 4

Page weighs 25.6 MB (15.1 MB transferred)

Informational: total page weight (uncompressed) and bytes actually transferred over the wire.

Performance › Page Weight Budget
Critical: 5

14 image-only link(s) without alt text

Image-only links with no alt are unidentifiable to screen-reader users — link's destination is invisible.

Accessibility › Link & Button Quality
What fixing these means. Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Your LCP of 40.1s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. Addressing the critical issues below would have the most immediate impact on your user trust.
3 security gaps detected — browsers may warn visitors about your site.
Your LCP is 40.1s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.
1 accessibility issue excludes users who rely on assistive technology.

Business case

What fixing the audit's findings is worth -- and what ignoring them keeps costing.

Return on investment

$675 investment → $7,136/month returns + USD 157,500 risk avoided

Investment
$675
6.8 h · 4 findings
Monthly returns
$7,136
$85,628/yr
Payback
0.1 mo
+12586% Y1
Regulatory risk avoided USD 157,500
Or — fix only the top 3 findings
$6250.1 mo payback · +13600% Y1
Optimistic scenario assuming the top 3 capture most of the upside. Real-world recovery typically falls between this projection and the full-fix ROI above.
$75 — 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.

Conversion barriers

6 barrier(s) likely increasing bounce by ~27%.

Barriers
6
2 crit 4 warn
Bounce delta
+27pp
added vs baseline
Score
68
C
Speed
2
Trust
2
Usability
0
Content
1
Nav
1
  • Page takes 40.1s to load
    Users abandon at ~3s — you're 37.6s over the 2.5s threshold
    → Optimize render-blocking resources, preload the hero image, and compress images
  • Page feels frozen for 2.1s
    Clicks on the primary CTA are ignored while JavaScript runs
    → Break up long tasks; defer non-critical JavaScript to post-hydration
  • No HSTS header
    Returning visitors are briefly exposed to downgrade attacks on first request
    → Set Strict-Transport-Security: max-age=31536000; includeSubDomains
  • No Content-Security-Policy header
    Higher XSS blast radius — one compromised script can exfiltrate the checkout form
    → Ship a reporting-only CSP first, then enforce once violations are clean
  • No structured data
    No rich-result eligibility in Google — lower SERP CTR vs competitors with stars and prices
    → Add JSON-LD for your page type (Product, Article, FAQPage, LocalBusiness, …)

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

Remediation cost

$675 6.8 developer hours at $100/hr
Quick wins
$75 2 fixes in ~45 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions

Team composition

Multiplier applied to dev hours to reflect QA, design, and PM overhead. Use Dev only for solo work; Full team for projects with formal review processes.

$ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

Warning:Cost of inaction

$7,136 / month at risk ~$85,628 / year if left unfixed
Default is 10,000. Use your own number for accurate $-figures.

Compliance Risk

$157,500

ADA Title IIICCPA/CPRA
  • No privacy policy link detected
    CCPA/CPRA: USD 2,500 – USD 7,500
  • 1 advertising/retargeting trackers detected
    CCPA/CPRA: USD 2,500 – USD 7,500
  • Trackers detected but no cookie policy found
    CCPA/CPRA: USD 2,500 – USD 7,500

Bounce-Rate Cost

$7,132 /mo

+26.5pp bounce · ~2,651 lost visitors/mo

CPC: USD 2.69

Bandwidth Waste

$3.80 /mo

47541.2 MB/mo × 0.080 USD/GB

  • Optimize transfer: save ~4.8 MB per page load
    Saves $3.80/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

Unique monthly visitors from your analytics

Purchases, signups, or key actions

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

Lighthouse

Mobile

28
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

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

4.89 s

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

40.05 s

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

2.12 s

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

0.000

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

13.54 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.

40.97 s

Desktop

50
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

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

1.60 s

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

8.37 s

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

277 ms

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

0.000

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

4.84 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.

8.55 s

Categories

8
Avg score 74.4

How you compare

Where this site stands against peers running the same stack.

Apple · 1267 peers
You 72
·
Avg 73
At average
0 50 100
Security P3Sustainability P8SEO P70Performance P36Infrastructure P62Content P59Accessibility P56Compliance P52

Top 10% of Apple sites score 76+ on Security; you're at 60 — closing this gap is the highest-leverage improvement.

Better than 32% of Apple sites See full Apple benchmark →
core-js · 1582 peers
You 72
·
Avg 72
At average
0 50 100
Sustainability P10Security P11SEO P62Performance P39Infrastructure P59Accessibility P57Compliance P55Content P47

Top 10% of core-js sites score 84+ on Sustainability; you're at 56 — closing this gap is the highest-leverage improvement.

Better than 35% of core-js sites See full core-js benchmark →

Technology stack

Apple, with F5 BigIP CDN

18 technologies detected 3 stack layers 2 with CPE identifier Enterprise

Stack Architecture

Analytics
Facebook Pixel 2.9.303 Google Analytics Google Tag Manager Microsoft Clarity theTradeDesk
Framework
Apple Facebook SDK GSAP Google Search Console Matter.js Microsoft Microsoft 365 Open Graph YouTube ZURB Foundation 6.7.4 core-js 3.20.3 jQuery 3.6.0
CDN
F5 BigIP

All Detected Technologies (18)

F5's BIG-IP is a family of products covering software and hardware designed around application availability, access control, and security solutions.

Categories Reverse proxies Website https://www.f5.com/products/big-ip-services Detected by BeaverCheck
This technology has a CPE identifier — check for known vulnerabilities Search NVD →
Categories Analytics Detected by BeaverCheck · Low Evidence TXT record: apple-domain-verification=JavcMPNMoxgzUjfi
Categories Analytics Detected by BeaverCheck Evidence Script URL contains connect.facebook.net: https://connect.facebook.net/signals/config/433300432045021?v=2.9.303&r=stable&domain=www.clemson.edu&hme=97937018cefade17726f0472876fc101316b2ce9008a35a6a5a7977d7436151a&ex_m=104%2C205%2C154%2C22%2C72%2C73%2C145%2C68%2C67%2C11%2C162%2C90%2C16%2C138%2C127%2C39%2C75%2C78%2C134%2C159%2C164%2C8%2C4%2C5%2C7%2C6%2C3%2C91%2C101%2C165%2C170%2C219%2C62%2C186%2C187%2C55%2C276%2C30%2C74%2C231%2C230%2C229%2C23%2C33%2C103%2C61%2C10%2C63%2C97%2C98%2C99%2C105%2C130%2C31%2C29%2C132%2C133%2C129%2C128%2C155%2C76%2C158%2C156%2C157%2C50%2C60%2C123%2C15%2C161%2C45%2C263%2C264%2C262%2C26%2C27%2C28%2C48%2C146%2C77%2C112%2C18%2C20%2C44%2C40%2C42%2C41%2C83%2C92%2C96%2C110%2C144%2C147%2C46%2C111%2C24%2C21%2C119%2C69%2C36%2C149%2C148%2C150%2C141%2C139%2C25%2C35%2C59%2C109%2C160%2C70%2C17%2C152%2C114%2C81%2C66%2C19%2C85%2C86%2C116%2C84%2C136%2C135%2C34%2C278%2C293%2C212%2C201%2C202%2C200%2C296%2C288%2C52%2C213%2C107%2C131%2C80%2C121%2C54%2C47%2C49%2C113%2C120%2C126%2C58%2C64%2C151%2C115%2C37%2C32%2C53%2C56%2C100%2C163%2C1%2C124%2C14%2C122%2C12%2C2%2C57%2C93%2C65%2C118%2C89%2C88%2C166%2C167%2C94%2C95%2C9%2C125%2C102%2C51%2C142%2C87%2C79%2C71%2C117%2C106%2C43%2C143%2C0%2C82%2C137%2C140%2C153%2C38%2C108%2C13%2C168

GSAP is an animation library that allows you to create animations with JavaScript.

Categories JavaScript frameworks Website https://greensock.com/gsap Detected by BeaverCheck
Categories Analytics Detected by BeaverCheck · Medium Evidence TXT record: google-site-verification=8QBFHdecJLrDer2g8wB5tHpA9NWYSsg5byDquqZR0IE

Matter.js is a JavaScript 2D rigid body physics engine for the web.

Categories JavaScript libraries Website https://brm.io/matter-js Detected by BeaverCheck
Categories Analytics Detected by BeaverCheck · Low Evidence TXT record: MS=ms25870385
Categories Email Detected by BeaverCheck Evidence MX record: clemson-edu.mail.protection.outlook.com

Open Graph is a protocol that is used to integrate any web page into the social graph.

Categories Miscellaneous Website https://ogp.me Detected by BeaverCheck

YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.

Categories Video players Website https://www.youtube.com Detected by BeaverCheck

Zurb Foundation is used to prototype in the browser. Allows rapid creation of websites or applications while leveraging mobile and responsive technology. The front end framework is the collection of HTML, CSS, and Javascript containing design patterns.

Categories UI frameworks Website https://foundation.zurb.com Detected by BeaverCheck

core-js is a modular standard library for JavaScript, with polyfills for cutting-edge ECMAScript features.

Categories JavaScript libraries Website https://github.com/zloirock/core-js Detected by BeaverCheck

jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.

Categories JavaScript libraries Website https://jquery.com Detected by BeaverCheck
This technology has a CPE identifier — check for known vulnerabilities Search NVD →

Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.

Categories Analytics Website https://facebook.com Detected by BeaverCheck

Google Analytics is a free web analytics service that tracks and reports website traffic.

Categories Analytics Website https://google.com/analytics Detected by BeaverCheck

Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.

Categories Tag managers Website https://www.google.com/tagmanager Detected by BeaverCheck Evidence Script URL contains www.googletagmanager.com: https://www.googletagmanager.com/gtag/destination?id=AW-991948946&cx=c&gtm=4e64h1

Microsoft's Clarity is a analytics tool which provides website usage statistics, session recording, and heatmaps.

Categories Analytics Website https://clarity.microsoft.com Detected by BeaverCheck

theTradeDesk is an technology company that markets a software platform used by digital ad buyers to purchase data-driven digital advertising campaigns across various ad formats and devices.

Categories Advertising Website https://www.thetradedesk.com Detected by BeaverCheck

Observations (2)

No build tool detected

A framework (Apple) was detected but no bundler was identified. The build tool may not be detectable from output patterns, or the site may use the framework's built-in bundler.

Complex technology stack detected

18 technologies identified. A complex stack increases maintenance burden and attack surface. Consider whether all components are actively needed.

Show your score

Drop this badge on your README, marketing site, or status page. It auto-updates every time the audit re-runs and links back to this report.

BeaverCheck badge

This badge auto-updates with your latest scan result.

[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fclemson.edu)](https://beavercheck.com/results/d175e52e-702a-40f7-a606-3caef9cdcbf2)
<a href="https://beavercheck.com/results/d175e52e-702a-40f7-a606-3caef9cdcbf2"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fclemson.edu" alt="BeaverCheck Score"></a>
https://beavercheck.com/badge?url=https%3A%2F%2Fclemson.edu

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Fix Plan

Three-week roadmap to ship the audit's findings, with one-click copy targets for your tracker.

Three-week fix plan

2 sprints · 7h total → projected B (82)

Sprint 1: Quick Wins

+6

Highest ROI — low effort, high impact

3 findings 1h → C (78)
  • · Page weighs 25.6 MB (15.1 MB transferred)
  • · HSTS header is missing
  • · 14 image-only link(s) without alt text

Sprint 2: Core Fixes

+4

Medium effort, high structural impact

2 findings 6h → B (82)
  • · Content-Security-Policy header is missing
  • · No Content-Security-Policy header found

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