What powers optimail.cz?
Last seen Oct 2026 · 12 technologies across 7 categories
Font scripts
Font Awesome
since Feb 2019
JavaScript libraries
Programming languages
PHP
since Feb 2019
Rich text editors
UI frameworks
Bootstrap
since Feb 2019
Web frameworks
Nette Framework
since Feb 2019
Web servers
Nginx
since Feb 2019
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Oct 2026 robots.txt appeared
- Oct 2026 * added to robots.txt
AI Crawlers
No AI crawlers blocked
Open Page Rank
1.66 / 10 · ranked #5,214,350 of all domains
3 referring domains · OpenPageRank
Page
- Weight: 0.4 MB · 40 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on ACTIVE24-AS www.active24.cz (81.95.110.8, IPv6)
- DNS: Active 24
- Email: active24.com
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 28,935,538, 4 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| novy.optimail.cz | 10 |
| app.optimail.cz | 8 |