Global Performance
6/6 locations ✓Acceptable global latency — average 487ms across 6 locations, fastest from Amsterdam (162ms), slowest from Santa Clara (893ms). Cloudflare edge cache (DYNAMIC). Cache-Control header is missing. 2 locations above the 500ms target.
Audit overview
Compliance needs attention; the rest of the categories are in good shape.
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
Top Priorities (5)
Cookie '_shopify_s' 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 '_shopify_y' 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 'localization' 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.
Page weighs 12.8 MB (4.8 MB transferred)
Informational: total page weight (uncompressed) and bytes actually transferred over the wire.
5 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
£169 investment → £7,729/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
5 barrier(s) likely increasing bounce by ~28%.
- Page takes 9.4s to loadUsers abandon at ~3s — you're 6.9s over the 2.5s threshold→ Optimize render-blocking resources, preload the hero image, and compress images
- Page feels frozen for 3.5sClicks on the primary CTA are ignored while JavaScript runs→ Break up long tasks; defer non-critical JavaScript to post-hydration
- 13 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
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
- 5 non-essential cookie(s) set without consent bannerUK GDPR: GBP 10,000 – GBP 17,500,000
- 5 non-essential cookie(s) set without consent bannerPECR: GBP 1,000 – GBP 500,000
- 2 tracking cookie(s) set before consent interactionUK GDPR: GBP 10,000 – GBP 17,500,000
Bounce-Rate Cost
£2,891 /mo
+27.5pp bounce · ~2,753 lost visitors/mo
CPC: GBP 1.05
Bandwidth Waste
£0.94 /mo
14943.2 MB/mo × 0.063 GBP/GB
- Optimize transfer: save ~1.5 MB per page loadSaves £0.94/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.
3.47 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
9.40 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
3.51 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.005
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
9.43 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.
32.01 s
Desktop
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.10 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.30 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
161 ms
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.
2.97 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.
4.84 s
Categories
8Performance
Page weighs 12.8 MB (4.8 MB transferred)
Security
Cookie '_shopify_s' is missing the Secure flag
Accessibility
5 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 86+ on Compliance; you're at 65 — closing this gap is the highest-leverage improvement.
Technology stack
Facebook SDK, hosted on Amazon Web Services, with Amazon S3 CDN
Stack Architecture
American Express 
Apple Pay 
Automizely 
Facebook Pixel 2.9.380
Google Analytics 
Google Pay 
Google Tag Manager 
Klaviyo 
Mastercard 
PayPal 
Visa 
Cart Functionality 
Shopify 
Font Awesome 6.5.1HSTS 
HTTP/3 
Judge.me 
LazySizes 
Open Graph 
Priority Hints 
Splide 
Swiper 
Three.js 128
Underscore.js 4.5.1
core-js 3.37.0
jQuery 3.7.1
lit-html 1.4.1
Amazon S3 
Cloudflare 
cdnjs 
jsDelivr jsDelivr CDN 
Amazon Web Services All Detected Technologies (34)
Amazon S3 or Amazon Simple Storage Service is a service offered by Amazon Web Services (AWS) that provides object storage through a web service interface.
Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
cdnjs is a free distributed JS library delivery service.
JSDelivr is a free public CDN for open-source projects. It can serve web files directly from the npm registry and GitHub repositories without any configuration.
Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality.
Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Shopify is a subscription-based software that allows anyone to set up an online store and sell their products. Shopify store owners can also sell in physical locations using Shopify POS, a point-of-sale app and accompanying hardware.
Font Awesome is a font and icon toolkit based on CSS and Less.
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.
Judge.me is a reviews app that helps you collect and display product reviews and site reviews with photos, videos and Q&A.
LazySizes is a JavaScript library used to delay the loading of images (iframes, scripts, etc) until they come into view.
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.
Splide.js is a lightweight, responsive, and customizable slider and carousel library for JavaScript.
Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.
Three.js is a cross-browser JavaScript library and application programming interface used to create and display animated 3D computer graphics in a web browser using WebGL.
Underscore.js is a JavaScript library which provides utility functions for common programming tasks. It is comparable to features provided by Prototype.js and the Ruby language, but opts for a functional programming design instead of extending object prototypes.
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.
lit-html is a simple, modern, safe, small and fast HTML templating library for JavaScript.
American Express, also known as Amex, facilitates electronic funds transfers throughout the world, most commonly through branded credit cards, debit cards and prepaid cards.
Apple Pay is a mobile payment and digital wallet service by Apple that allows users to make payments in person, in iOS apps, and on the web.
Automizely creates and manages enterprise-level marketing automation systems including contact and CRM mappings, lead funnels, email nurture, lead-generating pages, and blog posts, and website integrations.
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 Pay is a digital wallet platform and online payment system developed by Google to power in-app and tap-to-pay purchases on mobile devices, enabling users to make payments with Android phones, tablets or watches.
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.
Klaviyo is an email marketing platform for online businesses.
MasterCard facilitates electronic funds transfers throughout the world, most commonly through branded credit cards, debit cards and prepaid cards.
PayPal is an online payments system that supports online money transfers and serves as an electronic alternative to traditional paper methods like checks and money orders.
Observations (3)
Shopify storefront detected
Shopify handles hosting, SSL, and CDN automatically. Performance optimizations focus on theme code, app scripts, and image optimization. Check the Performance tab for third-party script impact.
No build tool detected
A framework (Facebook SDK) 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
34 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 · 2h total → projected B (89)
Sprint 1: Quick Wins
+7Highest ROI — low effort, high impact
- · Page weighs 12.8 MB (4.8 MB transferred)
- · Cookie '_shopify_s' is missing the Secure flag
- · Cookie '_shopify_y' is missing the Secure flag
- · Cookie 'localization' is missing the Secure flag
Sprint 2: Core Fixes
+2Medium effort, high structural impact
- · 5 image(s) missing alt attribute