Audit overview
3 categories need attention: Performance, and 2 others.
Fix Priority Matrix
5 findingsQuick Wins
1High impact, low effort — start here.
Strategic
4High 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.
Page weighs 12.7 MB (5.2 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.
3 image(s) missing alt attribute
Each image without alt text is a WCAG 1.1.1 failure — invisible to screen-reader users, lost from Google Image Search.
Business case
What fixing the audit's findings is worth -- and what ignoring them keeps costing.
Return on investment
£638 investment → £9,174/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
8 barrier(s) likely increasing bounce by ~32%.
- Page takes 12.2s to loadUsers abandon at ~3s — you're 9.7s over the 2.5s threshold→ Optimize render-blocking resources, preload the hero image, and compress images
- Page feels frozen for 4.2sClicks 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
- 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
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
- 4 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
£6,764 /mo
+32.2pp bounce · ~3,221 lost visitors/mo
CPC: GBP 2.10
Bandwidth Waste
£1.04 /mo
16484.9 MB/mo × 0.063 GBP/GB
- Optimize transfer: save ~1.6 MB per page loadSaves £1.04/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.
3.02 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
12.15 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
4.19 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.220
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.19 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.
28.48 s
Desktop
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
835 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.22 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
457 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.456
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.21 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.
5.76 s
Categories
8Performance
Page weighs 12.7 MB (5.2 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 Apple sites score 84+ on Performance; you're at 66 — closing this gap is the highest-leverage improvement.
Technology stack
Wagtail, on Python, with Fastly CDN
Stack Architecture
AB Tasty 
AppNexus 
DoubleClick Floodlight 
Emarsys 
Facebook Pixel 2.9.303
Google Analytics 
Google Tag Manager 
Pinterest Conversion Tag 
Quantcast Measure 
StackAdapt 
TikTok Pixel 
Twitter Ads 
Wagtail 
Webpack 
Didomi 
Django Facebook SDK Google Search Console HSTS Hotjar 
Open Graph 
Priority Hints 
Queue-it 2.0.61
Slick 
Varnish 
core-js 3.48.0
jQuery 3.7.1
reCAPTCHA 
Python 
Fastly jsDelivr CDN All Detected Technologies (32)
Python is an interpreted and general-purpose programming language.
Wagtail is a Django content management system (CMS) focused on flexibility and user experience.
Didomi is a consent management platform helping brands and businesses collect, store and leverage their customer consents.
Django is a Python-based free and open-source web application framework.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
Queue-it is a virtual waiting room platform designed to protect your website and mobile app from slowdowns or crashes during end-user peaks.
Varnish is a reverse caching proxy.
core-js is a modular standard library for JavaScript, with polyfills for cutting-edge ECMAScript features.
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.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.
AB Tasty is a customer experience optimisation company. AB Tasty offers AI-driven experimentation, personalisation, and product optimisation platforms for user testing.
AppNexus is a cloud-based software platform that enables and optimizes programmatic online advertising.
Emarsys is a cloud-based B2C marketing platform.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
Google Analytics is a free web analytics service that tracks and reports website traffic.
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.
Pinterest Conversion Tag allows you to track actions people take on your website after viewing your Promoted Pin.
Quantcast Measure is an audience insights and analytics tool.
StackAdapt is a platform that provides a content advertising strategy solution for planning, executing, and optimizing digital campaigns.
Twitter Ads is an advertising platform for Twitter 'microblogging' system.
Observations (1)
Complex technology stack detected
32 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 · 8h total → projected B (82)
Sprint 1: Quick Wins
+3Highest ROI — low effort, high impact
- · Page weighs 12.7 MB (5.2 MB transferred)
Sprint 2: Core Fixes
+8Medium effort, high structural impact
- · 1 control(s) without accessible label
- · 3 image(s) missing alt attribute
- · Content-Security-Policy header is missing
- · No Content-Security-Policy header found