What powers 
cool-captcha.de?
Last seen Aug 2026 · 34 technologies across 19 categories
Analytics
Google Analytics
since Dec 2024
CDN
Cloudflare
since Feb 2026
CMS
Databases
MySQL
since Jan 2024
Font scripts
Font Awesome
since Jan 2024
Twitter Emoji (Twemoji)
since Feb 2026
Hosting panels
Plesk
since Jan 2024
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Miscellaneous
Open Graph
since Jan 2024
RSS
since Nov 2025
Page builders
WordPress Block Editor
since Sep 2024
Payment processors
PayPal
since Sep 2024
Programming languages
Security
Cloudflare Bot Management
since Feb 2026
Tag managers
Google Tag Manager
since Dec 2024
Web servers
Nginx
since Jan 2024
Widgets
WordPress plugins
WooCommerce Subscriptions
since Oct 2024
WordPress themes
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 100% desktop
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.94 / 10 · ranked #614,342 of all domains
27 referring domains · OpenPageRank
Core Web Vitals
| LCP | 6.5 s |
| CLS | 0 |
| TTFB | 4900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Infrastructure
- Hosted on ALPHACRON-AS AlphaCron Datensysteme (134.97.35.153)
- DNS: antagus.de
- Email: polarismedia.de
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 25,375,054, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Borlabs Cookie Aug 2026
- dropped Priority Hints Aug 2026
- dropped Vue.js Aug 2026
- detected Cloudflare Jun 2026
- detected Cloudflare Bot Management Jun 2026
- detected Complianz Jun 2026
- dropped Cloudflare May 2026
- dropped Cloudflare Bot Management May 2026
- detected Priority Hints May 2026
- dropped Google Analytics Feb 2026
- dropped Google Tag Manager Feb 2026
- dropped Pinterest Conversion Tag Feb 2026
- dropped WooCommerce Subscriptions Feb 2026
- dropped PayPal Marketing Solutions Nov 2025