What powers joincert.eu?
Last seen Aug 2026 · 17 technologies across 10 categories
Comment systems
Font scripts
Font Awesome
since Dec 2022
Ionicons
since Dec 2022
JavaScript graphics
Chart.js
since Dec 2024
JavaScript libraries
Clipboard.js
since Dec 2022
Select2
since Dec 2022
Maps
Miscellaneous
Open Graph
since Nov 2022
Programming languages
UI frameworks
Web frameworks
Microsoft ASP.NET
since Dec 2022
Web servers
Apache HTTP Server
since Nov 2022
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 robots.txt appeared
- Sep 2026 * added to robots.txt
AI Crawlers
All crawlers blocked
Audience
- 61% desktop
- 39% phone
India
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.17 / 10 · ranked #1,307,477 of all domains
18 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 0.6 MB · 25 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on HLKOMM 04107 Leipzig (80.64.191.99)
- Email: no MX record returned
- Email security: SPF (hard fail)
- SSL: DigiCert, RSA 8192, wildcard, expires Sep 2026
- Common Crawl link graph: rank 19,460,360, 9 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| zws.joincert.eu | 13 |
| en15085.joincert.eu | 6 |
| iso3834.joincert.eu | 5 |
| en1090.joincert.eu | 3 |
| joincert.eu | 3 |