What powers school21nv.ru?
Last seen Sep 2026 · 18 technologies across 12 categories
Advertising
Analytics
Yandex.Metrika
since Jan 2022
Caching
WP Rocket
since Aug 2022
CMS
WordPress
since Apr 2019
Databases
MySQL
since Apr 2019
Font scripts
Google Font API
since Apr 2019
JavaScript libraries
Page builders
WordPress Block Editor
since Jul 2025
Performance
Priority Hints
since Jul 2025
Programming languages
PHP
since Apr 2019
Security
reCAPTCHA
since Apr 2022
Web servers
Apache HTTP Server
since Aug 2024
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
Russia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.99 / 10 · ranked #12,697,184 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.9 s |
| INP | 100 ms |
| CLS | 0.25 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Russian (Russia)
- Weight: 2.1 MB · 83 requests
- WordPress theme: reboot · all themes
- Structured data: Microdata
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- DNS: 1cloud.ru
- Email: no MX record returned
- Common Crawl link graph: rank 7,802,678, 2 hosts
DNS records as swept Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| arhi.school21nv.ru | 15 |
| lada.school21nv.ru | 14 |
| avto.school21nv.ru | 13 |
| po-svetu-na-kolesax.school21nv.ru | 12 |
| siderat.school21nv.ru | 12 |
| umaxline.school21nv.ru | 12 |
| umelye.school21nv.ru | 12 |
| elektrik.school21nv.ru | 11 |
| podbor.school21nv.ru | 11 |
| pricep.school21nv.ru | 11 |
| school21nv.ru | 11 |
| stroi.school21nv.ru | 11 |
| dacha.school21nv.ru | 10 |
Full technology history →
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Recent changes
- dropped Cloudflare Apr 2026
- dropped Cloudflare Bot Management Apr 2026
- dropped Snowplow Analytics Dec 2025