21back.com - robtex.com
21back.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.213.45🇺🇸 Amazon13.248.208.0/20 | ||||||
| PTR | a67c48129651a0940.awsglobalaccelerator.com | ||||||
| A | 76.223.67.189🇺🇸 Amazon76.223.64.0/20 | ||||||
| NS | ns49.domaincontrol.com ⭐ | ||||||
| A | 2603:5:2182::19🇺🇸 GODADDY-DNS2603:5:2180::/44 | ||||||
| PTR | ns49.domaincontrol.com | ||||||
| A | 97.74.104.25🇺🇸 GODADDY-DNS97.74.104.0/23 | ||||||
| PTR | ns49.domaincontrol.com | ||||||
| NS | ns50.domaincontrol.com | ||||||
| A | 2603:5:2282::19🇺🇸 GODADDY-DNS2603:5:2280::/44 | ||||||
| PTR | ns50.domaincontrol.com | ||||||
| A | 173.201.72.25🇺🇸 GODADDY-DNS173.201.72.0/23 | ||||||
| PTR | ns50.domaincontrol.com | ||||||
| SOA | ns49.domaincontrol.comdns@jomax.net 2026-01-25 #1 | ||||||
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
21back.com |
Similar names
DNS History
11 records (4 active, 7 former)
○NSns09.domaincontrol.com2015-11-13 → 2016-04-23 · 4 obs
● 2016-04-23 04:25:32
○ 2017-12-24 06:05:34
○ 2026-03-24 07:32:24
○NSns10.domaincontrol.com2015-11-13 → 2016-04-23 · 4 obs
● 2016-04-23 04:25:32
○ 2017-12-24 06:05:34
○ 2026-03-24 07:32:24
●NSns49.domaincontrol.com2026-03-02 → 2026-03-24 · 3 obs
● 2026-03-02 17:42:00
● 2026-03-24 07:32:24
●NSns50.domaincontrol.com2026-03-02 → 2026-03-24 · 3 obs
● 2026-03-02 17:42:00
● 2026-03-24 07:32:24
○MXmailstore1.secureserver.net2015-11-13 → 2016-04-23 · 4 obs
● 2016-04-23 04:25:32
○ 2017-12-24 06:05:34
○ 2026-03-24 07:32:24
○MXsmtp.secureserver.net2015-11-13 → 2016-04-23 · 4 obs
● 2016-04-23 04:25:32
○ 2017-12-24 06:05:34
○ 2026-03-24 07:32:24
●A13.248.213.452026-03-02 → 2026-03-24 · 3 obs
● 2026-03-02 17:42:00
● 2026-03-24 07:32:24
○A184.168.221.392015-11-13 → 2016-04-23 · 4 obs
● 2016-04-23 04:25:32
○ 2016-12-11 06:28:26
○ 2026-03-24 07:32:24
○A47.90.14.2322016-12-11 → 2016-12-11 · 4 obs
● 2016-12-11 06:28:26
○ 2017-12-24 06:05:34
○ 2026-03-24 07:32:24
●A76.223.67.1892026-03-02 → 2026-03-24 · 3 obs
● 2026-03-02 17:42:00
● 2026-03-24 07:32:24
○CNAME1075.dragonparking.com2017-12-24 → 2017-12-24 · 3 obs
○ 2026-03-02 17:42:00
○ 2026-03-24 07:32:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 21back.com | ns49.domaincontrol.com, ns50.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.72.25
NS records: ns49.domaincontrol.com, ns50.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21back.com (unsigned zone)
⏱️ Timing
Total: 145ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 76.223.67.189, 13.248.213.45 |
| NS | 2 | ns49.domaincontrol.com, ns50.domaincontrol.com |
| SOA | 1 | ns49.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns49.domaincontrol.com, ns49.domaincontrol.com, ns50.domaincontrol.com...)
Analysis
IP Addresses
21back.com resolves to two IP numbers: 13.248.213.45 and 76.223.67.189.
other host names including lindentreemusic.com, aimcertrouting.com, 1461bd.com, hairsalonssheffield.co.uk and sdzhiwensuo.com share IP numbers with 21back.com.
Name Servers
21back.com is delegated to two name servers ns49.domaincontrol.com and ns50.domaincontrol.com.
21back.com shares the same name server setup as other domains, for instance below90.com, b-ins.com, snbtu.org, follybeachluxury.com and adultsfeed.com.
Host names with two IP numbers:
The host name ns49.domaincontrol.com points to 2603:5:2182::19 and 97.74.104.25; the host name ns50.domaincontrol.com points to 2603:5:2282::19 and 173.201.72.25.