21-03.com - robtex.com
21-03.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns1.yandex.net ⭐ | ||||||
| A | 2a02:6b8::213🇷🇺 TELETECH2a02:6b8::/32 Yandex network | ||||||
| PTR | dns1.yandex.net | ||||||
| A | 213.180.204.213🇷🇺 TELETECH213.180.192.0/19 Yandex network | ||||||
| PTR | dns1.yandex.net | ||||||
| NS | dns2.yandex.net | ||||||
| A | 2a02:6b8:0:1::213🇷🇺 TELETECH2a02:6b8::/32 Yandex network | ||||||
| PTR | dns2.yandex.net | ||||||
| A | 93.158.134.213🇷🇺 TELETECH93.158.128.0/18 Yandex enterprise network | ||||||
| PTR | dns2.yandex.net | ||||||
| MX | mx.yandex.net ⭐ | ||||||
| A | 2a02:6b8::311🇷🇺 TELETECH2a02:6b8::/32 Yandex network | ||||||
| PTR | mxfront.stable.qloud-b.yandex.net | ||||||
| A | 77.88.21.249🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network | ||||||
| PTR | mxfront.stable.qloud-b.yandex.net | ||||||
| TXT | v=spf1 redirect=_spf.yandex.net | ||||||
| SOA | dns1.yandex.netdns-hosting@yandex.ru serial=5 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1771291435 | ||||||
Same first word
21-03.com |
Similar names
DNS History
11 records (3 active, 8 former)
●NSdns1.yandex.net2026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 20:38:42
●NSdns2.yandex.net2026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 20:38:42
○NSns1.hc.ru2015-05-27 → 2017-09-16 · 3 obs
● 2017-09-16 11:57:36
○ 2026-03-23 20:38:42
○NSns2.hc.ru2015-05-27 → 2017-09-16 · 3 obs
● 2017-09-16 11:57:36
○ 2026-03-23 20:38:42
○MXalt1.aspmx.l.google.com2015-05-27 → 2017-09-16 · 3 obs
● 2017-09-16 11:57:36
○ 2026-03-23 20:38:42
○MXalt2.aspmx.l.google.com2015-05-27 → 2017-09-16 · 3 obs
● 2017-09-16 11:57:36
○ 2026-03-23 20:38:42
○MXaspmx.l.google.com2015-05-27 → 2017-09-16 · 3 obs
● 2017-09-16 11:57:36
○ 2026-03-23 20:38:42
○MXaspmx2.googlemail.com2015-05-27 → 2017-09-16 · 3 obs
● 2017-09-16 11:57:36
○ 2026-03-23 20:38:42
○MXaspmx3.googlemail.com2015-05-27 → 2017-09-16 · 3 obs
● 2017-09-16 11:57:36
○ 2026-03-23 20:38:42
●MXmx.yandex.net2026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 20:38:42
○A89.111.176.222015-05-27 → 2017-09-16 · 3 obs
● 2017-09-16 11:57:36
○ 2026-03-23 20:38:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 21-03.com | dns1.yandex.net, dns2.yandex.net | - |
✅ Authoritative Response
Server:213.180.204.213
NS records: dns1.yandex.net, dns2.yandex.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21-03.com (unsigned zone)
⏱️ Timing
Total: 671ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns2.yandex.net, dns1.yandex.net |
| MX | 1 | mx.yandex.net (pri: 10) |
| TXT | 1 | v=spf1 redirect=_spf.yandex.net |
| SOA | 1 | dns1.yandex.net dns-hosting.yandex.ru |
Analysis
Name Servers
21-03.com is delegated to two name servers: dns1.yandex.net and dns2.yandex.net.
21-03.com uses the same name server setup as other domains, for instance idl-c.com, intermashstroy.ru, symvol.su, whatsms.com and 4river.ru.
21-03.com shares name servers with other domains at least partially; for example beldolina.ru, activation.su, 3450.ru and kmapjs.ru.
these name servers are commonly used together with dns1.yandex.ru and dns2.yandex.ru.
Host names with two IP numbers:
The host dns1.yandex.net points to 2a02:6b8::213 and 213.180.204.213.
The host dns2.yandex.net points to 2a02:6b8:0:1::213 and 93.158.134.213.
Mail Servers
The mail server for 21-03.com is mx.yandex.net.
21-03.com shares the same mail server setup as other domains, including dirit.ru, xn--80acd6bfvlv2d.xn--p1ai, na-volge.ru, p-t.by and aurumlabs.co.
Host name mx.yandex.net resolves to two IPs: 2a02:6b8::311 and 77.88.21.249.