What powers gls-czech.cz?
Last seen Aug 2026 · 33 technologies across 20 categories
Analytics
Google Analytics
since May 2021
CMS
Comment systems
Cookie compliance
Databases
MySQL
since May 2023
Microsoft 365
since Aug 2022
SparkPost
since Aug 2022
Font scripts
Font Awesome
since Dec 2020
Google Font API
since Apr 2019
JavaScript frameworks
JavaScript libraries
Maps
Google Maps
since Apr 2019
Miscellaneous
Page builders
Performance
Priority Hints
since Feb 2024
Programming languages
PHP
since Apr 2019
Tag managers
Google Tag Manager
since May 2023
UI frameworks
Web frameworks
Nette Framework
since Apr 2019
Web servers
Apache HTTP Server
since Apr 2019
Nginx
since Jun 2021
Widgets
WordPress plugins
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
- 80% phone
- 20% desktop
Czechia
Slovakia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.00 / 10 · ranked #566,451 of all domains
31 referring domains · OpenPageRank
Core Web Vitals
| LCP | 5.5 s |
| INP | 325 ms |
| CLS | 0.15 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 4.2 MB · 42 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on O2-CZECH-REPUBLIC (194.228.175.140)
- DNS: websupport.cz
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record, DNSSEC signed
- SSL: DigiCert, RSA 4096, expires Nov 2026
- Common Crawl link graph: rank 12,146,398, 10 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| blog.gls-czech.cz | 21 |
| doc.gls-czech.cz | 10 |
| maps.gls-czech.cz | 10 |
| ps-maps.gls-czech.cz | 10 |
| welcome.gls-czech.cz | 9 |
| help.gls-czech.cz | 4 |