Audit overview
4 categories need attention: Performance, 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.
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 11.7 MB (6.3 MB transferred)
Informational: total page weight (uncompressed) and bytes actually transferred over the wire.
13 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
£581 investment → £3,254/month returns + GBP 17,550,000 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 ~31%.
- Page takes 36.1s to loadUsers abandon at ~3s — you're 33.6s over the 2.5s threshold→ Optimize render-blocking resources, preload the hero image, and compress images
- Page feels frozen for 1.4sClicks on the primary CTA are ignored while JavaScript runs→ Break up long tasks; defer non-critical JavaScript to post-hydration
- 5 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
- 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
£17,550,000
- 2 advertising/retargeting trackers detectedUK GDPR: GBP 10,000 – GBP 17,500,000
- 2 of 2 <nav> elements are unlabeledEquality Act 2010: GBP 500 – GBP 50,000
- Skip navigation link is missing (WCAG 2.4.1)Equality Act 2010: GBP 500 – GBP 50,000
Bounce-Rate Cost
£3,253 /mo
+31.0pp bounce · ~3,098 lost visitors/mo
CPC: GBP 1.05
Bandwidth Waste
£1.24 /mo
19688.8 MB/mo × 0.063 GBP/GB
- Optimize transfer: save ~2.0 MB per page loadSaves £1.24/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.
7.25 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
36.11 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.44 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.
11.57 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.
36.50 s
Desktop
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.21 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.17 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
28 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.004
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.62 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.
5.42 s
Categories
8Performance
Page weighs 11.7 MB (6.3 MB transferred)
Security
Content-Security-Policy header is missing
Accessibility
13 image(s) missing alt attribute
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 Cart Functionality sites score 73+ on Accessibility; you're at 39 — closing this gap is the highest-leverage improvement.
Technology stack
Optimizely Content Management, hosted on Azure, with Cloudflare CDN
Stack Architecture
Azure Monitor 
DoubleClick Floodlight 
Google Analytics 
Google Tag Manager 
Microsoft Advertising 
Microsoft Clarity 
Cart Functionality 
Optimizely Content Management 
Cookie Script Facebook 
FancyBox 2.1.5
Getsitecontrol 
HTTP/3 
Issuu Masonry Microsoft Microsoft 365 
Microsoft ASP.NET 
Modernizr 2.8.3
Moment.js 2.18.1
Open Graph 
Sentry 
Svelte 
Ventrata 3.105.0
ZURB Foundation 5.4.7
jQuery 3.7.0 jQuery Migrate 1.4.1
jQuery UI 1.12.1
Cloudflare Azure All Detected Technologies (31)
Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
Azure is a cloud computing service for building, testing, deploying, and managing applications and services through Microsoft-managed data centers.
Optimizely Content Management (formerly EPiServer) is digital content, ecommerce, and marketing management solution designed for editors and marketers.
Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Cookie-Script automatically scans, categorizes and adds description to all cookies found on your website.
FancyBox is a tool for displaying images, html content and multi-media in a Mac-style 'lightbox' that floats overtop of web page.
Getsitecontrol is a form and popup builder.
HTTP/3 is the third major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web.
Issuu is a digital discovery and publishing platform.
Masonry is a JavaScript library that enables a cascading grid layout, positioning elements based on available vertical space for an optimized, gap-free arrangement.
ASP.NET is an open-source, server-side web-application framework designed for web development to produce dynamic web pages.
Modernizr is a JavaScript library that detects the features available in a user's browser.
Moment.js is a free and open-source JavaScript library that removes the need to use the native JavaScript Date object directly.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Sentry is an open-source platform for workflow productivity, aggregating errors from across the stack in real time.
Svelte is a free and open-source front end compiler created by Rich Harris and maintained by the Svelte core team members.
Ventrata is a booking platform designed for high volume tours and attractions, offering all-in-one ticketing systems.
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.
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.
Query Migrate is a javascript library that allows you to preserve the compatibility of your jQuery code developed for versions of jQuery older than 1.9.
jQuery UI is a collection of GUI widgets, animated visual effects, and themes implemented with jQuery, Cascading Style Sheets, and HTML.
Azure Monitor collects monitoring telemetry from a variety of on-premises and Azure sources. Azure Monitor helps you maximise the availability and performance of your applications and services.
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.
Microsoft Advertising is an online advertising platform developed by Microsoft.
Microsoft's Clarity is a analytics tool which provides website usage statistics, session recording, and heatmaps.
Observations (3)
jQuery loaded alongside a modern framework
Both jQuery and Svelte are loaded. Modern frameworks handle DOM manipulation natively. jQuery may be unnecessary and adds ~30KB to the page weight. Check the Performance tab for bundle analysis.
No build tool detected
A framework (Azure DNS) 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
31 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 C (78)
Sprint 1: Quick Wins
+5Highest ROI — low effort, high impact
- · Page weighs 11.7 MB (6.3 MB transferred)
- · HSTS header is missing
Sprint 2: Core Fixes
+5Medium effort, high structural impact
- · 13 image(s) missing alt attribute
- · Content-Security-Policy header is missing
- · No Content-Security-Policy header found