Global Performance
6/6 locations ✓Acceptable global latency — average 236ms across 6 locations, fastest from Amsterdam (14ms), slowest from Singapore (796ms). AWS CloudFront edge cache (FunctionGeneratedResponse from cloudfront). Cache-Control header is missing. 1 location above the 500ms target.
Audit overview
5 categories need attention: Performance, and 4 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.
113 third-party resources (100% of weight)
Informational: third-party resource count and their share of page weight. High share caps perf gains from frontend optimization.
114 HTTP requests — consider bundling or reducing
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Business case
What fixing the audit's findings is worth -- and what ignoring them keeps costing.
Return on investment
$1,025 investment → $9,120/month returns + USD 7,500 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 ~34%.
- Page takes 20.0s to loadUsers abandon at ~3s — you're 17.5s over the 2.5s threshold→ Optimize render-blocking resources, preload the hero image, and compress images
- Page feels frozen for 1.8sClicks on the primary CTA are ignored while JavaScript runs→ Break up long tasks; defer non-critical JavaScript to post-hydration
- No viewport meta tagMobile browsers render at desktop width and shrink — text unreadable, tap targets miniature→ Add <meta name="viewport" content="width=device-width, initial-scale=1">
- 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
$7,500
- No privacy policy link detectedCCPA/CPRA: USD 2,500 – USD 7,500
- Trackers detected but no cookie policy foundCCPA/CPRA: USD 2,500 – USD 7,500
- Trackers detected but no privacy policy foundCCPA/CPRA: USD 2,500 – USD 7,500
Bounce-Rate Cost
$9,120 /mo
+33.9pp bounce · ~3,390 lost visitors/mo
CPC: USD 2.69
Bandwidth Waste
$0.70 /mo
8788.8 MB/mo × 0.080 USD/GB
- Optimize transfer: save ~879 KB per page loadSaves $0.70/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 3 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.
7.28 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
20.00 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.84 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.002
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
8.83 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.
20.37 s
Desktop
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.32 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.
30 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.007
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.72 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
6Performance
113 third-party resources (100% of weight)
Security
Content-Security-Policy header is missing
Accessibility
All checks pass
Infrastructure
All checks pass
Compliance
All checks pass
Sustainability
All checks pass
How you compare
Where this site stands against peers running the same stack.
Top 10% of Amazon Route 53 sites score 85+ on Performance; you're at 66 — closing this gap is the highest-leverage improvement.
Top 10% of Facebook sites score 82+ on Performance; you're at 66 — closing this gap is the highest-leverage improvement.
Technology stack
Amazon Route 53, hosted on AWS, with AWS CloudFront CDN
Stack Architecture
All Detected Technologies (9)
Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds.
Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality.
Observations (2)
No build tool detected
A framework (Amazon Route 53) 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
9 technologies identified. A complex stack increases maintenance burden and attack surface. Consider whether all components are actively needed.
Show your score
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[](https://beavercheck.com/results/04cc33e1-d4ae-4a48-ab95-a1272ff1ea3a)<a href="https://beavercheck.com/results/04cc33e1-d4ae-4a48-ab95-a1272ff1ea3a"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fzalando.com" alt="BeaverCheck Score"></a>https://beavercheck.com/badge?url=https%3A%2F%2Fzalando.comFix Plan
Three-week roadmap to ship the audit's findings, with one-click copy targets for your tracker.
Three-week fix plan
2 sprints · 10h total → projected C (74)
Sprint 1: Quick Wins
+4Highest ROI — low effort, high impact
- · HSTS header is missing
- · 113 third-party resources (100% of weight)
Sprint 2: Core Fixes
+6Medium effort, high structural impact
- · Content-Security-Policy header is missing
- · No Content-Security-Policy header found
- · 114 HTTP requests — consider bundling or reducing


