DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
t21v.ru runs on AS197394, with email configured.
- Hosting network
- AS197394AS197394
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 19 other sites on AS197394. Stable here since we started watching (Jul 31, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to t21v.ru.
DNS Records for t21v.ru
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| t21v.ru | NS | 0 | ns1.t21v.ru | |
| t21v.ru | NS | 0 | ns2.t21v.ru | |
| t21v.ru | MX | 0 | 2 | mx2.t21v.ru |
| t21v.ru | MX | 0 | 57 | mx5.t21v.ru |
| t21v.ru | MX | 0 | 57 | mail.t21v.ru |
| t21v.ru | SOA | 86400 | ns1.t21v.ru mail.t21v.ru 2026042900 900 900 1209600 86400 | |
| t21v.ru | TXT | 0 | _globalsign-domain-verification=XHK1R7jSnlFFWx9UseCg7EgMKVOVMTWyFZ0Gxhzm-F | |
| t21v.ru | TXT | 0 | v=spf1 ip4:91.245.33.52 a:mail.t21v.ru +mx -all | |
| t21v.ru | TXT | 0 | _globalsign-domain-verification=bv31_v8kyhAwNQkBykt80GKmgNTlpJ2fxkz7jpzDsC | |
| t21v.ru | A | 0 | 91.245.35.24 | |
| www.t21v.ru | CNAME | 0 | t21v.ru | |
| www.t21v.ru | TXT | 0 | _globalsign-domain-verification=bv31_v8kyhAwNQkBykt80GKmgNTlpJ2fxkz7jpzDsC | |
| www.t21v.ru | TXT | 0 | _globalsign-domain-verification=XHK1R7jSnlFFWx9UseCg7EgMKVOVMTWyFZ0Gxhzm-F | |
| www.t21v.ru | TXT | 0 | v=spf1 ip4:91.245.33.52 a:mail.t21v.ru +mx -all | |
| www.t21v.ru | A | 0 | 91.245.35.24 | |
| www.t21v.ru | SOA | 86400 | ns1.t21v.ru mail.t21v.ru 2026042900 900 900 1209600 86400 | |
| www.t21v.ru | NS | 0 | ns1.t21v.ru | |
| www.t21v.ru | NS | 0 | ns2.t21v.ru | |
| www.t21v.ru | MX | 0 | 2 | mx2.t21v.ru |
| www.t21v.ru | MX | 0 | 57 | mx5.t21v.ru |
| www.t21v.ru | MX | 0 | 57 | mail.t21v.ru |
Get alerted the moment t21v.ru's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch t21v.ru continuously, notifying you the moment anything moves across all three signals:

Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
Free for your first domain: uptime, DNS, and certificate together. No credit card.
What's up with DNS →
Our daily roundup of the most interesting DNS changes across the web — hosting and CDN migrations, network moves, and security-config shifts.
Ask about t21v.ru
BetaAnswers use the live DNS records shown on this page. AI-generated — double-check anything important.
About DNS Records
DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:
- SOA (Start of Authority) - Contains administrative information about the zone
- NS (Nameserver) - Specifies authoritative nameservers for the domain
- A (Address) - Maps a domain to an IPv4 address
- AAAA - Maps a domain to an IPv6 address
- CNAME (Canonical Name) - Creates an alias pointing to another domain
- MX (Mail Exchange) - Specifies mail servers for the domain