cs543100.userapi.com - robtex.com
cs543100.userapi.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 87.240.129.187🇷🇺 VKONTAKTE-SPB-AS87.240.128.0/18 Saint Petersburg region | ||||||
| PTR | srv187-129-240-87.vk.com | ||||||
| A | 87.240.190.64🇷🇺 VKONTAKTE-SPB-AS87.240.128.0/18 Saint Petersburg region | ||||||
userapi.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 87.240.129.187🇷🇺 VKONTAKTE-SPB-AS87.240.128.0/18 Saint Petersburg region | ||||||
| A | 87.240.190.64🇷🇺 VKONTAKTE-SPB-AS87.240.128.0/18 Saint Petersburg region | ||||||
| NS | ns1.vkontakte.ru ⭐ | ||||||
| NS | ns2.vkontakte.ru | ||||||
| NS | ns3.vkontakte.ru | ||||||
| NS | ns4.vkontakte.ru | ||||||
| MX | mx.vk.com ⭐ | ||||||
| TXT | HARICA-1ObFuIyyYSvGS21lPSl | ||||||
| TXT | _globalsign-domain-verification=6gPgwhJkX4uBuKXUE5O7y9oUmtXB-CAJv9xnFqikEy | ||||||
| TXT | HARICA-7rMvGABnKMnABT4yIpZ | ||||||
| TXT | v=spf1 -all | ||||||
| TXT | _globalsign-domain-verification=O0Pt8zhXN9vdBLKTxOu4bCXzcpDWeAUl7l3Ar9XFUH | ||||||
| TXT | atJ1QQ0fGXlJSD9DKrPatRQAB83O7mfrJvGeRBNgitM= | ||||||
| TXT | _globalsign-domain-verification=MTlPckbrbufqf1JnpHMmOmwzo8YGGLlvWrcq6GWzyT | ||||||
| TXT | _globalsign-domain-verification=7yYVJvdrWz05cbzkQl-l0yVYWsP6gDO5u194Ic8KA8 | ||||||
| TXT | _globalsign-domain-verification=Ldp0yHWVZFPvYhD5fv1Cc9Z6N1qveliT6uzxwdrr9C | ||||||
| SOA | ns1.vkontakte.runcc@vk.com serial=3565215511 | ||||||
rank #(0x37313735) globally
rank #3549 in the tld
WOT: SAFE (90/100)
📈 Tranco rank: #180
userapi.com
userapi.com is a domain owned and operated by VK (formerly VKontakte), the largest social media platform in Russia and the CIS region.
Purpose
The domain serves as part of VK's API infrastructure:
- API Endpoints: Used for VK's developer API services
- Content Delivery: Hosts user-uploaded content (images, videos, audio files) served through VK's CDN
- Authentication: Handles OAuth and authentication flows for third-party applications
About VK
VK (VKontakte) is a Russian social networking service founded in 2006 by Pavel Durov. Key facts:
- Largest social network in Russia with over 100 million monthly active users
- Offers features similar to Facebook: profiles, messaging, groups, news feeds, music, and video sharing
- Owned by VK Company (formerly Mail.ru Group)
- Provides extensive APIs for developers to build applications and integrations
Technical Notes
- The domain redirects (301) to
vk.comwhen accessed directly in a browser - Subdomains like
pp.userapi.comandsun*.userapi.comserve media content - Commonly seen in network traffic from VK mobile and web applications
DNS History
3 records (2 active, 1 former)
●A87.240.129.1872026-04-03 → 2026-04-03 · 2 obs
● 2026-04-03 19:13:28
●A87.240.190.642026-04-03 → 2026-04-03 · 2 obs
● 2026-04-03 19:13:28
○A95.213.4.512018-05-11 → 2018-05-11 · 2 obs
○ 2026-04-03 19:13:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| userapi.com | ns1.vkontakte.ru, ns2.vkontakte.ru, ns3.vkontakte.ru, ns4.vkontakte.ru | - |
✅ Authoritative Response
Server:93.186.238.238
NS records: ns1.vkontakte.ru, ns2.vkontakte.ru, ns3.vkontakte.ru, ns4.vkontakte.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for userapi.com (unsigned zone)
⏱️ Timing
Total: 809ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 87.240.190.64, 87.240.129.187 |
Analysis
IP Addresses
cs543100.userapi.com resolves to two IPs: 87.240.129.187 and 87.240.190.64.
other host names for instance cs635601.vkuservideo.net, 634306.userapi.com, cs319124.userapi.com, cs564616.vkuservideo.net and cs623800.userapi.com share IP numbers with cs543100.userapi.com.