cs506405.userapi.com - robtex.com
cs506405.userapi.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 87.240.141.129🇷🇺 VKONTAKTE-SPB-AS87.240.128.0/18 Saint Petersburg region | ||||||
| PTR | srv129-141-240-87.vk.com | ||||||
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 | _globalsign-domain-verification=6gPgwhJkX4uBuKXUE5O7y9oUmtXB-CAJv9xnFqikEy | ||||||
| TXT | HARICA-7rMvGABnKMnABT4yIpZ | ||||||
| TXT | _globalsign-domain-verification=7yYVJvdrWz05cbzkQl-l0yVYWsP6gDO5u194Ic8KA8 | ||||||
| TXT | v=spf1 -all | ||||||
| TXT | _globalsign-domain-verification=O0Pt8zhXN9vdBLKTxOu4bCXzcpDWeAUl7l3Ar9XFUH | ||||||
| TXT | _globalsign-domain-verification=Ldp0yHWVZFPvYhD5fv1Cc9Z6N1qveliT6uzxwdrr9C | ||||||
| TXT | _globalsign-domain-verification=MTlPckbrbufqf1JnpHMmOmwzo8YGGLlvWrcq6GWzyT | ||||||
| TXT | atJ1QQ0fGXlJSD9DKrPatRQAB83O7mfrJvGeRBNgitM= | ||||||
| TXT | HARICA-1ObFuIyyYSvGS21lPSl | ||||||
| SOA | ns1.vkontakte.runcc@vk.com serial=3565215511 | ||||||
rank #7126 globally
rank #3527 in the tld
WOT: SAFE (90/100)
📈 Tranco rank: #181
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
2 records (1 active, 1 former)
●A87.240.141.1292026-04-03 → 2026-04-03 · 2 obs
○ 2017-06-06 03:35:30
● 2026-04-03 10:12:00
● 2026-04-03 10:12:00
○A87.240.162.782017-06-06 → 2017-06-06 · 2 obs
● 2017-06-06 03:35:30
○ 2026-04-03 10:12:00
○ 2026-04-03 10:12:00
🔍 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:87.240.136.136
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: 1329ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 87.240.141.129 |
Analysis
IP Addresses
cs506405.userapi.com points to a single IP: 87.240.141.129.
Other host names, for instance cs506117.userapi.com, cs507520.userapi.com, cs529223.userapi.com, cs506410.userapi.com and cs12740.vk.me share IP numbers with cs506405.userapi.com.