Audit overview
3 categories need attention: Performance, and 2 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.
HSTS header is missing
Without HSTS, a network attacker can downgrade the very first connection to HTTP and steal the user's session.
No Content-Security-Policy header found
Without a CSP, a single XSS bug can exfiltrate everything users type — credentials, payment data, session tokens.
Page weighs 26.5 MB (8.4 MB transferred)
Informational: total page weight (uncompressed) and bytes actually transferred over the wire.
1 control(s) without accessible label
Form controls without labels — assistive tech announces 'edit text' with no context; users can't complete forms.
Business case
What fixing the audit's findings is worth -- and what ignoring them keeps costing.
Return on investment
£544 investment → £5,458/month returns + GBP 18,050,000 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 ~26%.
- Page takes 27.3s to loadUsers abandon at ~3s — you're 24.8s over the 2.5s threshold→ Optimize render-blocking resources, preload the hero image, and compress images
- Page feels frozen for 16.4sClicks on the primary CTA are ignored while JavaScript runs→ Break up long tasks; defer non-critical JavaScript to post-hydration
- 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
- 1 form field(s) without a labelScreen readers skip unlabeled fields; autofill can't identify them; checkout abandonment spikes→ Associate every input with a visible <label for="…">; add autocomplete attributes
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
£18,050,000
- No privacy policy link detectedUK GDPR: GBP 10,000 – GBP 17,500,000
- 6 advertising/retargeting trackers detectedUK GDPR: GBP 10,000 – GBP 17,500,000
- Trackers detected but no cookie policy foundUK GDPR: GBP 10,000 – GBP 17,500,000
Bounce-Rate Cost
£5,457 /mo
+26.0pp bounce · ~2,598 lost visitors/mo
CPC: GBP 2.10
Bandwidth Waste
£1.67 /mo
26508.2 MB/mo × 0.063 GBP/GB
- Optimize transfer: save ~2.7 MB per page loadSaves £1.67/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 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
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.
2.12 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
27.27 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
16.43 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.012
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
14.39 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.
49.95 s
Desktop
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
588 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
5.62 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.92 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.001
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
7.31 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.
15.43 s
Categories
8Performance
Page weighs 26.5 MB (8.4 MB transferred)
Security
Content-Security-Policy header is missing
Accessibility
1 control(s) without accessible label
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 core-js sites score 75+ on Security; you're at 58 — closing this gap is the highest-leverage improvement.
Technology stack
Astro, with Bunny CDN
Stack Architecture
AdThrive 
Amazon Advertising 
DoubleClick Floodlight 
Google Analytics 
Google Publisher Tag 
Google Tag Manager 
Plausible 
Prebid 10.23.0
Raptive 
Astro 
Funding Choices Google Search Console Google Workspace 
Lucide 
Open Graph Plausible Analytics 
Tailwind CSS 
core-js 3.49.0
Bunny 
Stay22 6284All Detected Technologies (20)
Stay22 is a travel tech company that offers affiliate revenue generation opportunities for events, ticketing and travel media publications.
Astro is a new JavaScript-based static site builder.
Funding Choices is a messaging tool that can help you comply with the EU General Data Protection Regulation (GDPR), and recover lost revenue from ad blocking users.
Lucide is an open-source icon library that provides 1000+ vector (svg) files for displaying icons and symbols in digital and non-digital projects.
Open Graph is a protocol that is used to integrate any web page into the social graph.
core-js is a modular standard library for JavaScript, with polyfills for cutting-edge ECMAScript features.
AdThrive is an online advertising network aka ad provider for bloggers for blog monetisation.
Amazon Advertising (formerly AMS or Amazon Marketing Services) is a service that works in a similar way to pay-per-click ads on Google.
Google Analytics is a free web analytics service that tracks and reports website traffic.
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.
Plausible is an open-source alternative to Google Analytics.
Prebid is an open-source header bidding wrapper. It forms the core of our Nucleus ad platform, helping maximize revenue and performance for publishers.
Raptive is a company formed from the merger of CafeMedia, AdThrive, and CafeMedia Ad Management, focusing on supporting digital creators and publishers.
Observations (2)
No build tool detected
A framework (Astro) 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
20 technologies identified. A complex stack increases maintenance burden and attack surface. Consider whether all components are actively needed.
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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 (81)
Sprint 1: Quick Wins
+5Highest ROI — low effort, high impact
- · Page weighs 26.5 MB (8.4 MB transferred)
- · HSTS header is missing
Sprint 2: Core Fixes
+5Medium effort, high structural impact
- · 1 control(s) without accessible label
- · Content-Security-Policy header is missing
- · No Content-Security-Policy header found