What powers helloskola.cz?
Last seen Aug 2026 · 23 technologies across 13 categories
CMS
Databases
MySQL
since Aug 2022
Hosting
WordPress Multisite
since Jul 2023
JavaScript frameworks
JavaScript libraries
Miscellaneous
Performance
Priority Hints
since Oct 2023
Programming languages
PHP
since Aug 2022
Security
HSTS
since Apr 2026
Web servers
Webmail
Microsoft 365
since Aug 2022
WordPress plugins
Smash Balloon Instagram Feed
since Aug 2022
WP Rocket
since Aug 2022
WordPress themes
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 60% phone
- 40% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.56 / 10 · ranked #2,395,749 of all domains
16 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 0.2 MB · 54 requests
- WordPress theme: hello-elementor (child: hello-theme-child-master) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- HELLO školy
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Websupport (37.9.175.165, IPv6)
- DNS: forpsi.cz
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record, DNSSEC signed
- Common Crawl link graph: rank 11,437,284, 2 hosts
DNS records as swept Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped jQuery UI Aug 2026
- detected Elementor Jul 2026
- detected GSAP Jul 2026
- detected Hello Elementor Jul 2026
- detected HSTS Jul 2026
- detected HTTP/3 Jul 2026
- detected jQuery Jul 2026
- detected jQuery Migrate Jul 2026
- detected Microsoft 365 Jul 2026
- detected MySQL Jul 2026
- detected Nginx Jul 2026
- detected Open Graph Jul 2026
- detected OpenResty Jul 2026
- detected PHP Jul 2026
- detected Priority Hints Jul 2026
- detected RSS Jul 2026
- detected Smash Balloon Instagram Feed Jul 2026
- detected WordPress Jul 2026
- detected WordPress Multisite Jul 2026
- detected WP Rocket Jul 2026
- detected Yoast SEO Jul 2026
- detected HSTS Apr 2026
- detected GSAP Mar 2026