Global Performance
6/6 locations ✓High global latency — average 847ms across 6 locations, fastest from Amsterdam (215ms), slowest from Sao Paulo (1441ms). Assets on Cloudflare (host cdn.vidstack.io, 4 assets); document served directly from origin (Linode). Cache-Control disables caching (no-store). 4 locations above the 500ms target.
Audit overview
Content and Sustainability need attention; the other 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 '.AspNetCore.Antiforgery.VyLW6ORzMgk' 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.
Page weighs 16.6 MB (6.7 MB transferred)
Informational: total page weight (uncompressed) and bytes actually transferred over the wire.
1 button(s) with no accessible text
Buttons with no accessible text (icon-only, no aria-label) can't be activated by voice control or understood by screen readers.
128 inline style attribute(s) detected
Inline style attributes force `style-src 'unsafe-inline'` in any CSP -- effectively negating CSP's XSS-mitigation value for stylesheets.
Business case
What fixing the audit's findings is worth -- and what ignoring them keeps costing.
Return on investment
CZK 5,500 investment → CZK 84,795/month returns + EUR 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
7 barrier(s) likely increasing bounce by ~34%.
- Page takes 34.6s to loadUsers abandon at ~3s — you're 32.1s over the 2.5s threshold→ Optimize render-blocking resources, preload the hero image, and compress images
- Page feels frozen for 5.1sClicks on the primary CTA are ignored while JavaScript runs→ Break up long tasks; defer non-critical JavaScript to post-hydration
- Mixed content on HTTPS pageBrowsers block insecure subresources — broken images, missing scripts, warning badge→ Change http:// URLs inside the page to https:// (or protocol-relative)
- 21 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
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
€500.000
- 2 of 2 <nav> elements are unlabeledEAA: EUR 1.000 – EUR 500.000
- Skip navigation link is missing (WCAG 2.4.1)EAA: EUR 1.000 – EUR 500.000
- Heading level skipped: H2 → H5 (missing H3)EAA: EUR 1.000 – EUR 500.000
Bounce-Rate Cost
CZK 84.755 /mo
+33.9pp bounce · ~3,390 lost visitors/mo
CPC: CZK 25.00
Bandwidth Waste
CZK 39 /mo
21165.9 MB/mo × 1.860 CZK/GB
- Optimize transfer: save ~2.1 MB per page loadSaves CZK 39/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 4 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.
9.82 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
34.59 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
5.09 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.
10.68 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.
34.95 s
Desktop
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
513 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
754 ms
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.75 s
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.
686 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
5.99 s
Categories
8Performance
Page weighs 16.6 MB (6.7 MB transferred)
Security
Cookie '.AspNetCore.Antiforgery.VyLW6ORzMgk' is missing the Secure flag
Accessibility
1 button(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.
Top 10% of Bootstrap sites score 95+ on Content; you're at 68 — closing this gap is the highest-leverage improvement.
Technology stack
Blazor, hosted on Snowplow Analytics, with Nginx CDN
Stack Architecture
Facebook Pixel 
Google Tag Manager 
Blazor 
Bootstrap 5.3.5Google Search Console 
Microsoft ASP.NET 
Open Graph 
Priority Hints 
Tailwind CSS 
Ubuntu 
Nginx 1.18.0
Snowplow Analytics All Detected Technologies (12)
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Snowplow is an open-source behavioral data management platform for businesses.
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.
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.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
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 (2)
No build tool detected
A framework (Blazor) 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
12 technologies identified. A complex stack increases maintenance burden and attack surface. Consider whether all components are actively needed.
Show your score
Drop this badge on your README, marketing site, or status page. It auto-updates every time the audit re-runs and links back to this report.
This badge auto-updates with your latest scan result.
[](https://beavercheck.com/sites/psichologie.cz)<a href="https://beavercheck.com/sites/psichologie.cz"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fpsichologie.cz" alt="BeaverCheck Score"></a>https://beavercheck.com/badge?url=https%3A%2F%2Fpsichologie.czExport & share
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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 · 5h total → projected A (90)
Sprint 1: Quick Wins
+9Highest ROI — low effort, high impact
- · Page weighs 16.6 MB (6.7 MB transferred)
- · Cookie '.AspNetCore.Antiforgery.VyLW6ORzMgk' is missing the Secure flag
- · HSTS header is missing
- · 1 button(s) with no accessible text
Sprint 2: Core Fixes
Medium effort, high structural impact
- · 128 inline style attribute(s) detected