21.ru.com - robtex.com
21.ru.com
ru.com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns0.centralnic.net ⭐ | ||||||
| NS | ns1.centralnic.net | ||||||
| NS | ns2.centralnic.net | ||||||
| NS | ns3.centralnic.net | ||||||
| NS | ns4.centralnic.net | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns0.centralnic.nethostmaster@centralnic.net serial=3000678284 | ||||||
rank #739 in the tld
WOT: SAFE (50/100)
📈 Tranco rank: #4,381
Same first word
Similar names
Previous names
Next names
DNS History
9 records (3 active, 6 former)
○NSabby.ns.cloudflare.com2026-09-13 → 2026-09-13 · 3 obs
○ 2026-10-10 05:44:54
○ 2026-10-19 08:43:30
○NSajay.ns.cloudflare.com2026-09-13 → 2026-09-13 · 3 obs
○ 2026-10-10 05:44:54
○ 2026-10-19 08:43:30
●NSns1-expired.sav.com2026-10-10 → 2026-10-19 · 3 obs
● 2026-10-10 05:44:54
● 2026-10-19 08:43:30
●NSns2-expired.sav.com2026-10-10 → 2026-10-19 · 3 obs
● 2026-10-10 05:44:54
● 2026-10-19 08:43:30
○A104.21.3.972026-09-13 → 2026-09-13 · 3 obs
○ 2026-10-10 05:44:54
○ 2026-10-19 08:43:30
○A172.67.153.1252026-09-13 → 2026-09-13 · 3 obs
○ 2026-10-10 05:44:54
○ 2026-10-19 08:43:30
○A2606:4700:3032::ac43:997d2026-09-13 → 2026-09-13 · 3 obs
○ 2026-10-10 05:44:54
○ 2026-10-19 08:43:30
○A2606:4700:3033::6815:3612026-09-13 → 2026-09-13 · 3 obs
○ 2026-10-10 05:44:54
○ 2026-10-19 08:43:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, h.gtld-servers.net, m.gtld-servers.net, l.gtld-servers.net... | - |
| ru.com | ns1.centralnic.net, ns2.centralnic.net, ns3.centralnic.net, ns4.centralnic.net | - |
| 21.ru.com | ns1-expired.sav.com, ns2-expired.sav.com | - |
✅ Authoritative Response
Server:172.236.108.177
NS records: ns1-expired.sav.com, ns2-expired.sav.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21.ru.com (unsigned zone)
⏱️ Timing
Total: 1516ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| CNAME | 1 | ru.com |
Analysis
Name Servers
The authoritative name servers for 21.ru.com are ns0.centralnic.net, ns1.centralnic.net, ns2.centralnic.net and two others.
21.ru.com shares at least some of its name servers with other domains, including co.no, se.net, br.com and two others.
These name servers are frequently seen alongside ns3.centralnic.net, ns4.centralnic.net, a.nic.fm and 5 other name servers.
Hosts pointing to four IP addresses:
ns0.centralnic.net points to 54.217.78.230, 63.34.52.177, 2a05:d018:4a2:c101::150 and 2a05:d018:4a2:c102::150.
Hosts with two IP numbers each:
ns1.centralnic.net has two IP addresses: 194.169.218.24 and 2001:67c:13cc::1:24.
ns2.centralnic.net has two IP addresses: 185.24.64.10 and 2a04:2b00:13cc::1:10.
ns3.centralnic.net has two IP addresses: 212.18.248.10 and 2a04:2b00:13ee::10.
ns4.centralnic.net has two IP addresses: 212.18.249.24 and 2a04:2b00:13ff::24.