What powers calcus.ru?
Last seen Aug 2026 · 7 technologies across 6 categories
Advertising
Analytics
JavaScript Frameworks
Operating Systems
Programming languages
Web Servers
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| 40000/100 | #70 | 1 |
| calculator imt | #35 | 0 |
| calcol | #62 | 0 |
| 7/9-5/9 | #94 | 0 |
| 7/9-5/9 | #58 | 0 |
| 5/3-7/3 | #96 | 0 |
| 100/30000 | #58 | 0 |
| 169000 eur to usd | #48 | 0 |
| 1001/11 | #55 | 0 |
| 187 x 2 | #98 | 0 |
| 34/1000 | #33 | 0 |
| 3.5 of 169000 | #80 | 0 |
| 275/25 28 | #56 | 0 |
| 35000/100 | #73 | 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
- 78% phone
- 22% desktop
Russia
Germany
Belarus
Kazakhstan
Netherlands
Poland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.06 / 10 · ranked #240,641 of all domains
196 referring domains · OpenPageRank
Search traffic
1 est. monthly organic visits (US)
14 keywords in Google's top 30
Core Web Vitals
| LCP | 1.6 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Russian
- Weight: 0.4 MB · 22 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on EUROBYTE (130.49.173.84)
- Email: no MX record returned, SPF names Yandex 360
- Email security: SPF (soft fail)
- SSL: GlobalSign, RSA 2048, expires Mar 2027
- Common Crawl link graph: rank 2,108,377, 2 hosts
- Verified with: GlobalSign
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.calcus.ru | 6 |
| calcus.ru | 4 |
Full technology history →
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Recent changes
- detected Google Analytics Jul 2026
- dropped ADFOX Jan 2026