Audit overview
4 categories need attention: Security, and 3 others.
Fix Priority Matrix
5 findingsQuick Wins
2High impact, low effort — start here.
Strategic
3High impact, requires investment.
Easy Improvements
0Small gains, minimal effort.
Nothing in this quadrant — good news.
Deprioritize
0Low impact, high effort — do last.
Nothing in this quadrant — good news.
Screenshots
Top Priorities (5)
Content-Security-Policy header is missing
Without a CSP, a single XSS bug can exfiltrate everything your users type — including credentials.
No Content-Security-Policy header found
Without a CSP, a single XSS bug can exfiltrate everything users type — credentials, payment data, session tokens.
2 link(s) with no accessible text
Links with no accessible text (empty <a></a>, image-only no alt, icon-only no aria-label) are unidentifiable to screen readers.
61 third-party resources (100% of weight)
Informational: third-party resource count and their share of page weight. High share caps perf gains from frontend optimization.
Cross-Origin-Embedder-Policy header is missing
COEP enforces that all embedded resources opt-in to cross-origin embedding — required for cross-origin isolation features.
Business case
What fixing the audit's findings is worth -- and what ignoring them keeps costing.
Return on investment
$750 investment → $10,562/month returns + USD 157,500 risk avoided
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 ~23%.
- Page feels frozen for 1.8sClicks on the primary CTA are ignored while JavaScript runs→ Break up long tasks; defer non-critical JavaScript to post-hydration
- 5 broken link(s) on the pageClicks land on 404s — trust drops and the session often ends→ Fix or remove the broken destinations surfaced on the Content tab
- Page loads in 3.7sEvery additional 100ms above 2.5s costs conversions — you're 1.2s over→ Target <2.5s LCP: defer non-critical scripts and optimize the hero image
- No HSTS headerReturning visitors are briefly exposed to downgrade attacks on first request→ Set Strict-Transport-Security: max-age=31536000; includeSubDomains
- No Content-Security-Policy headerHigher XSS blast radius — one compromised script can exfiltrate the checkout form→ Ship a reporting-only CSP first, then enforce once violations are clean
Preliminary CRO audit — each barrier links to the tab with detailed analysis.
Remediation cost
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.
Rates reflect fully-loaded developer cost including overhead
Warning:Cost of inaction
Compliance Risk
$157,500
- 2 advertising/retargeting trackers detectedCCPA/CPRA: USD 2,500 – USD 7,500
- 1 empty heading(s)ADA Title III: USD 25,000 – USD 150,000
Bounce-Rate Cost
$8,211 /mo
+23.5pp bounce · ~2,346 lost visitors/mo
CPC: USD 3.50
Bandwidth Waste
$0.55 /mo
6820.5 MB/mo × 0.080 USD/GB
- Optimize transfer: save ~682 KB per page loadSaves $0.55/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.
Unique monthly visitors from your analytics
Purchases, signups, or key actions
Optional — for revenue estimation
more engaged visitors from reduced bounce
Fix 3 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
Your data stays in your browser — nothing is sent to our servers
Lighthouse
Mobile
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
3.12 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.75 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.75 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.
6.26 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.
17.22 s
Desktop
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.58 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.
234 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.037
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.97 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.
4.37 s
Categories
8Performance
61 third-party resources (100% of weight)
Security
Content-Security-Policy header is missing
Accessibility
2 link(s) with no accessible text
SEO
All checks pass
Infrastructure
All checks pass
Compliance
All checks pass
Content
All checks pass
Sustainability
All checks pass
How you compare
Where this site stands against peers running the same stack.
Top 10% of Bootstrap sites score 95+ on Content; you're at 67 — closing this gap is the highest-leverage improvement.
Top 10% of Cloudflare sites score 96+ on Content; you're at 67 — closing this gap is the highest-leverage improvement.
Technology stack
Bootstrap 5, hosted on AWS, with AWS CloudFront CDN
Stack Architecture
All Detected Technologies (24)
Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds.
Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality.
Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
GetFeedback (formerly Usabilla) is a user feedback solution for collecting qualitative and quantitative user feedback across digital channels including websites, apps and emails.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Loadable-Components is a library to solve the React code-splitting client-side and server-side.
React is an open-source JavaScript library for building user interfaces or UI components.
Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.
Trustpilot is a Danish consumer review website which provide embed stand-alone applications in your website to show your most recent reviews, TrustScore, and star ratings.
core-js is a modular standard library for JavaScript, with polyfills for cutting-edge ECMAScript features.
Branch is a mobile deep linking system to increase engagement and retention.
Google Publisher Tag (GPT) is an ad tagging library for Google Ad Manager which is used to dynamically build ad requests.
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.
New Relic is a SaaS offering that focuses on performance and availability monitoring.
Statsig is a modern product experimentation platform that helps product teams continuously measure impact of every single feature they launch.
Observations (2)
No build tool detected
A framework (Bootstrap) 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
24 technologies identified. A complex stack increases maintenance burden and attack surface. Consider whether all components are actively needed.
Show your score
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[](https://beavercheck.com/results/bcd2a622-4ec8-4b36-9dcb-bb450cfdda54)<a href="https://beavercheck.com/results/bcd2a622-4ec8-4b36-9dcb-bb450cfdda54"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fthetrainline.com" alt="BeaverCheck Score"></a>https://beavercheck.com/badge?url=https%3A%2F%2Fthetrainline.comFix Plan
Three-week roadmap to ship the audit's findings, with one-click copy targets for your tracker.
Three-week fix plan
2 sprints · 8h total → projected B (81)
Sprint 1: Quick Wins
+2Highest ROI — low effort, high impact
- · 2 link(s) with no accessible text
- · 61 third-party resources (100% of weight)
Sprint 2: Core Fixes
+5Medium effort, high structural impact
- · Content-Security-Policy header is missing
- · No Content-Security-Policy header found
- · Cross-Origin-Embedder-Policy header is missing


