Audit overview
All categories sit comfortably above the 70 threshold; this is a clean audit.
Fix Priority Matrix
5 findingsQuick Wins
4High impact, low effort — start here.
Strategic
1High 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
Your mail setup has problems.
lycamobile.co.uk fails 2 mail checks: No DMARC record found, No SPF record found. This is the kind of misconfiguration that sends your mail to spam.
Top Priorities (5)
10 publicly-accessible JavaScript source map(s)
Source maps reveal original source code (variable names, comments, file structure) and are shipped to production by mistake almost universally. The standard fix is a one-line build-tool config change.
Cookie 'NEXT_LOCALE' is missing the Secure flag
A cookie without the Secure flag can leak over HTTP — in HSTS-protected sites, this is still a defense-in-depth gap.
Cookie 'geo_country' is missing the Secure flag
A cookie without the Secure flag can leak over HTTP — in HSTS-protected sites, this is still a defense-in-depth gap.
1 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.
1 image-in-link without alt text
Image-only links with no alt create empty links — screen-reader users hear 'link' with no destination context.
Business case
What fixing the audit's findings is worth -- and what ignoring them keeps costing.
Return on investment
£225 investment → £10,187/month returns + GBP 50,000 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
3 barrier(s) likely increasing bounce by ~27%.
- Page takes 7.8s to loadUsers abandon at ~3s — you're 5.3s 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
- Severe layout shift during page loadUsers mis-click when content jumps — converting intent into frustration→ Reserve space for images, ads, and embeds with explicit width/height
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
£50,000
- 6 empty heading(s)Equality Act 2010: GBP 500 – GBP 50,000
- 1 image(s) missing alt attributeEquality Act 2010: GBP 500 – GBP 50,000
- 1 image-in-link without alt textEquality Act 2010: GBP 500 – GBP 50,000
Bounce-Rate Cost
£5,622 /mo
+26.8pp bounce · ~2,677 lost visitors/mo
CPC: GBP 2.10
Bandwidth Waste
£0.54 /mo
8519.7 MB/mo × 0.063 GBP/GB
- Optimize transfer: save ~852 KB per page loadSaves £0.54/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.
3.67 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
7.76 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.43 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.370
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
7.97 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.
17.77 s
Desktop
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
389 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.48 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
98 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.161
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.87 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.
3.55 s
Categories
8Performance
All checks pass
Security
10 publicly-accessible JavaScript source map(s)
Accessibility
1 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.
Technology stack
Adobe Client Data Layer 2.0.2, on Emotion, hosted on Next.js, with Cloudflare...
Stack Architecture
Adobe Experience Platform Launch 
Google Analytics 
Google Tag Manager 
Linkedin Insight Tag 
Microsoft Clarity 
Adobe Client Data Layer 2.0.2
Aklamio 
Cloudflare Bot Management HSTS 
HTTP/3 
MUI Material UI Material-UI 
Open Graph 
Priority Hints 
React 
Webpack 
Emotion Cloudflare 
Envoy 
Next.js All Detected Technologies (21)
Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
Envoy is an open-source edge and service proxy, designed for cloud-native applications.
Next.js is a React framework for developing single page Javascript applications.
Emotion is a library designed for writing CSS styles with JavaScript.
Adobe Client Data Layer is a framework of JavaScript objects on your site that contains all variable values used in your implementation.
Aklamio is a solution for enterprise level referral marketing and customer incentivisation.
Cloudflare bot management solution identifies and mitigates automated traffic to protect websites from bad bots.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
HTTP/3 is the third major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web.
MUI(formerly Material UI) is a simple and customisable component library to build faster, beautiful, and more accessible React applications.
Material UI is a simple and customisable component library to build faster, beautiful, and more accessible React applications.
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.
React is an open-source JavaScript library for building user interfaces or UI components.
Webpack is an open-source JavaScript module bundler.
Adobe Experience Cloud Launch is an extendable tag management solution for Adobe Experience Cloud, Adobe Experience Platform, and other applications.
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.
LinkedIn Insight Tag is a lightweight JavaScript tag that powers conversion tracking, website audiences, and website demographics.
Microsoft's Clarity is a analytics tool which provides website usage statistics, session recording, and heatmaps.
Observations (2)
No build tool detected
A framework (Adobe Client Data Layer) 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
21 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 · 3h total → projected A (90)
Sprint 1: Quick Wins
+6Highest ROI — low effort, high impact
- · Cookie 'NEXT_LOCALE' is missing the Secure flag
- · Cookie 'geo_country' is missing the Secure flag
- · 10 publicly-accessible JavaScript source map(s)
- · 1 image-in-link without alt text
Sprint 2: Core Fixes
+2Medium effort, high structural impact
- · 1 image(s) missing alt attribute