What powers 
apha.cz?
Last seen Aug 2026 · 43 technologies across 23 categories
Advertising
Analytics
Authentication
CDN
CMS
Databases
Font Scripts
JavaScript Frameworks
JavaScript libraries
Miscellaneous
Mobile frameworks
Operating systems
Page builders
Performance
Programming languages
Security
Tag Managers
Web Frameworks
Web Servers
Webmail
Widgets
WordPress plugins
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 not found
- ai.txt not found
- Sep 2026 *: Allowed (was Blocked)
- Sep 2026 *: Blocked (was Restricted)
- Aug 2026 * added to robots.txt
- Aug 2026 * removed from robots.txt
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| katedrla | #39 | 0 |
| katedrala sv vita | #28 | 0 |
| kostel svatho vta | #15 | 0 |
| hradcany | #97 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Audience
- 67% phone
- 33% desktop
Czechia
Slovakia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.92 / 10 · ranked #115,765 of all domains
220 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech (Czechia)
- Weight: 0.9 MB · 76 requests
- WordPress theme: ds-prime · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Arcibiskupství pražské (Roman Catholic Archdiocese of Prague on Wikidata)
- Founded: 973
- Industry: Arts and entertainment (declares
Event) - Country: Czech Republic
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on SUPERNETWORK _ (185.247.28.80)
- DNS: ignum.com
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 606,374, 25 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| apha.cz | 24 |
| in.apha.cz | 21 |
| pastorace.apha.cz | 18 |
| jubileum.apha.cz | 12 |
| bohosluzby.apha.cz | 11 |
| videa.apha.cz | 11 |
| www.apha.cz | 10 |
| katechete.apha.cz | 8 |
| katalog.apha.cz | 7 |
Full technology history →
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Recent changes
- dropped Plesk Jun 2026
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025