What powers indrc.cz?
Last seen Mar 2026 · 26 technologies across 18 categories
Analytics
Google Analytics
since Nov 2022
CMS
Databases
MySQL
since Nov 2022
Font scripts
Google Font API
since Nov 2022
Twitter Emoji (Twemoji)
since Nov 2022
JavaScript frameworks
GSAP
since Nov 2022
JavaScript libraries
Miscellaneous
Operating systems
Ubuntu
since Mar 2026
PaaS
WP Engine
since Nov 2022
Programming languages
Security
Cloudflare Turnstile
since Mar 2026
HSTS
since Mar 2026
SEO
Tag managers
Google Tag Manager
since Nov 2022
UI frameworks
Video players
Vimeo
since Nov 2022
Web servers
Webmail
Microsoft 365
since Mar 2026
Widgets
AI Crawlers
Blocks 13 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- cohere-training-data-crawler Blocked
- Diffbot Blocked
- FacebookBot Blocked
- Google-Extended Blocked
- GPTBot Blocked
- ImagesiftBot Blocked
- Webzio-Extended Blocked
Search and AI assistants
- PerplexityBot Blocked
User-request fetchers
- ChatGPT-User Blocked
The other 20 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
13 of 33 AI crawlers blocked
Open Page Rank
3.31 / 10 · ranked #1,116,280 of all domains
25 referring domains · OpenPageRank
Infrastructure
- Hosted on SECURITYNET-AS (46.36.41.174)
- Email: Microsoft 365
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 2,432,706, 2 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| indrc.cz | 18 |
| www.indrc.cz | 14 |