What powers optica-expo.ru?
Last seen Sep 2026 · 18 technologies across 11 categories
Analytics
Google Analytics
since Apr 2019
Yandex.Metrika
since Mar 2020
CDN
jsDelivr
since Oct 2020
CMS
1C-Bitrix
since Apr 2019
JavaScript graphics
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Operating systems
CentOS
since Apr 2019
Programming languages
PHP
since Apr 2019
Tag managers
Google Tag Manager
since Apr 2019
UI frameworks
Web servers
Nginx
since Apr 2019
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
Russia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.74 / 10 · ranked #2,096,726 of all domains
35 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 250 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 0.5 MB · 21 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Industry: Arts and entertainment (declares
Event)
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on FLEXLINE-AS (185.30.195.69)
- DNS: nic.ru
- Email: optica-expo.ru
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 14,207,440, 5 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| gse.optica-expo.ru | 13 |
| www.optica-expo.ru | 12 |
| reg.optica-expo.ru | 5 |
Full technology history →
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Recent changes
- dropped Ubuntu Feb 2026