What powers 
a-tom.cz?
Last seen Aug 2026 · 25 technologies across 16 categories
Analytics
Google Analytics
since Jan 2019
Authentication
Facebook Login
since Jul 2021
CDN
Google Hosted Libraries
since Feb 2022
CMS
Databases
MySQL
since Mar 2022
Font scripts
JavaScript libraries
Maps
Google Maps
since Jan 2019
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Performance
Priority Hints
since Feb 2024
Programming languages
PHP
since Jan 2019
UI frameworks
Bootstrap
since Jan 2019
Web servers
Apache HTTP Server
since Sep 2021
Webmail
Google Workspace
since Aug 2022
Widgets
WordPress themes
Twenty Sixteen
since Mar 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 76% phone
- 24% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.42 / 10 · ranked #414,560 of all domains
58 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 7.0 MB · 114 requests
- Structured data: Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- A-TOM
- Founded: 1991
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on INTERNET-CZ Ktis 2, 384 03 Ktis (80.211.208.215, IPv6)
- DNS: blueboard.cz
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 3,036,940, 15 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.a-tom.cz | 12 |
| chalupy.a-tom.cz | 11 |
| rezervace.a-tom.cz | 11 |
| trikralovaokor.a-tom.cz | 10 |
| evidence.a-tom.cz | 5 |
Full technology history →
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Recent changes
- detected Slick Dec 2025