21sixgroup.com - robtex.com
21sixgroup.com
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=1774546022 | ||||||
Same first word
21sixgroup.com |
DNS History
8 records (4 active, 4 former)
●NSns07.domaincontrol.com2017-05-07 → 2026-03-26 · 2 obs
● 2026-03-26 17:29:56
●NSns08.domaincontrol.com2017-05-07 → 2026-03-26 · 2 obs
● 2026-03-26 17:29:56
○MX21sixgroup-com.mail.protection.outlook.com2026-02-27 → 2026-03-26 · 2 obs
○ 2026-03-26 17:29:56
○MXmailstore1.secureserver.net2017-05-07 → 2017-05-07 · 3 obs
○ 2026-02-27 14:59:00
○ 2026-03-26 17:29:56
●MXsmtp.google.com2026-02-27 → 2026-03-26 · 3 obs
● 2026-02-27 14:59:00
● 2026-03-26 17:29:56
○MXsmtp.secureserver.net2017-05-07 → 2017-05-07 · 3 obs
○ 2026-02-27 14:59:00
○ 2026-03-26 17:29:56
●A178.128.166.572026-02-27 → 2026-03-26 · 3 obs
● 2026-02-27 14:59:00
● 2026-03-26 17:29:56
○A50.63.202.392017-05-07 → 2017-05-07 · 3 obs
○ 2026-02-27 14:59:00
○ 2026-03-26 17:29:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 21sixgroup.com | ns07.domaincontrol.com, ns08.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.71.4
NS records: ns07.domaincontrol.com, ns08.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21sixgroup.com (unsigned zone)
⏱️ Timing
Total: 111ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 178.128.166.57 |
| NS | 2 | ns08.domaincontrol.com, ns07.domaincontrol.com |
| MX | 1 | smtp.google.com (pri: 1) |
| TXT | 7 | google-site-verification=iughoqrNU3sAkaY, v=spf1 include:_spf.google.com include:s... |
| SOA | 1 | ns07.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns07.domaincontrol.com, ns07.domaincontrol.com, ns08.domaincontrol.com...)
Analysis
IP Addresses
21sixgroup.com points to a single IP address: 178.128.166.57.
Other host names such as leukaemiabusters.org.uk, vitamex.se, testlinkusa.com, gopai.com and mail.cardiac-rehab.co.uk share IPs with 21sixgroup.com.
Name Servers
Two name servers ns07.domaincontrol.com and ns08.domaincontrol.com handle the delegation for 21sixgroup.com.
21sixgroup.com shares the same name server setup as other domains, for example k7a.com, skyvalleyechoes.info, relationshiptherapy.net, pinnaclehomeimprovement.biz and usca.tv.
21sixgroup.com partially shares name servers with other domains, for example kamalenfab.co.in and vaultz.net.
Host names with two IP numbers:
ns07.domaincontrol.com points to 2603:5:2170::4 and 97.74.103.4.
ns08.domaincontrol.com points to 2603:5:2270::4 and 173.201.71.4.
Mail Servers
The smtp.google.com mail server handles 21sixgroup.com.
21sixgroup.com shares the same mail server setup as other domains, including greatvaluerealty.com, jontangerine.com, skyplan.info, seekapp.info and nuticol.com.
21sixgroup.com shares at least partially some mail servers with other domains, for instance tatch.ai, xcreatorhub.com, fostersuccess.org, bensplumbingventura.com and alcooliques-anonymes.fr.
These mail servers commonly pair with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
The host name smtp.google.com maps to nine IP numbers: 2607:f8b0:4023:c06::1a, 2607:f8b0:4023:c06::1b, 2607:f8b0:4023:c0b::1a, 2607:f8b0:4023:c0b::1b, 142.250.101.26, 142.250.101.27, 142.250.141.26, 142.250.141.27 and 142.251.2.27.