Global Performance
6/6 locations ✓High global latency — average 1070ms across 6 locations, fastest from New York (624ms), slowest from Madrid (1448ms). No CDN detected. Cache-Control disables caching (no-store). 6 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
Your mail setup has problems.
sazimebudoucnost.cz 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)
Cookie 'ASP.NET_SessionId' 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.
HSTS header is missing
Without HSTS, a network attacker can downgrade the very first connection to HTTP and steal the user's session.
6 link(s) with no accessible text
Links with no accessible text (empty <a></a>, image-only no alt, icon-only no aria-label) are unidentifiable to screen readers.
7 image-in-link without alt text
Image-only links with no alt create empty links — screen-reader users hear 'link' with no destination context.
9 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
CZK 3,300 investment → CZK 113,312/month returns + EUR 120,500,000 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
9 barrier(s) likely increasing bounce by ~32%.
- Page takes 4.9s to loadUsers abandon at ~3s — you're 2.4s over the 2.5s threshold→ Optimize render-blocking resources, preload the hero image, and compress images
- Page feels frozen for 793msClicks on the primary CTA are ignored while JavaScript runs→ Break up long tasks; defer non-critical JavaScript to post-hydration
- 6 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
€120.500.000
- No privacy policy link detectedGDPR: EUR 10.000 – EUR 20.000.000
- Trackers detected but no cookie policy foundGDPR: EUR 5.000 – EUR 10.000.000
- Trackers detected but no cookie policy foundGDPR: EUR 10.000 – EUR 20.000.000
Bounce-Rate Cost
CZK 79.015 /mo
+31.6pp bounce · ~3,161 lost visitors/mo
CPC: CZK 25.00
Bandwidth Waste
CZK 10 /mo
5486.4 MB/mo × 1.860 CZK/GB
- Optimize transfer: save ~549 KB per page loadSaves CZK 10/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.
2.82 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.90 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
793 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.
4.75 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.
12.80 s
Desktop
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
970 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.68 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
4 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.
1.55 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.
2.71 s
Categories
8Performance
All checks pass
Security
Cookie 'ASP.NET_SessionId' is missing the Secure flag
Accessibility
6 link(s) with no accessible text
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
Kentico CMS, on IIS/ASP.NET, hosted on Microsoft IIS
Stack Architecture
Google Analytics 
Google Tag Manager 
Kentico CMS 
Angular 
AngularJS 1.5.8
Bootstrap 4.3.1
Google Font API 
LazySizes 
Microsoft ASP.NET 4.0.30319
Open Graph 
Slick 
Tailwind CSS 
Underscore.js 1.8.3
Windows Server 
core-js 3.50.0
jQuery 1.12.0 ASP.NET 
IIS 10.0 Microsoft IIS 10.0All Detected Technologies (19)
Internet Information Services (IIS) is an extensible web server software created by Microsoft for use with the Windows NT family.
Kentico CMS is a web content management system for building websites, online stores, intranets, and Web 2.0 community sites.
AngularJS is a JavaScript-based open-source web application framework led by the Angular Team at Google.
Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
Google Font API is a web service that supports open-source font files that can be used on your web designs.
LazySizes is a JavaScript library used to delay the loading of images (iframes, scripts, etc) until they come into view.
ASP.NET is an open-source, server-side web-application framework designed for web development to produce dynamic web pages.
Open Graph is a protocol that is used to integrate any web page into the social graph.
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.
Windows Server is a brand name for a group of server operating systems.
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.
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.
Observations (6)
Server version exposed in headers
The Server header reveals 'IIS 10.0'. Exposing exact server versions helps attackers target known vulnerabilities. Consider configuring your server to hide version information.
jQuery loaded alongside a modern framework
Both jQuery and Angular 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 (Angular) 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.
Bootstrap version may be outdated
Detected Bootstrap 4.3.1. The current major version is 5. Consider updating for security patches and new features.
jQuery version may be outdated
Detected jQuery 1.12.0. The current major version is 3. Consider updating for security patches and new features.
Complex technology stack detected
19 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 B (88)
Sprint 1: Quick Wins
+8Highest ROI — low effort, high impact
- · Cookie 'ASP.NET_SessionId' is missing the Secure flag
- · HSTS header is missing
- · 6 link(s) with no accessible text
- · 7 image-in-link without alt text
Sprint 2: Core Fixes
Medium effort, high structural impact
- · 9 image(s) missing alt attribute