21-learn.com - robtex.com
21-learn.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 74.208.73.181🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc. | ||||||
| PTR | ip74-208-73-181.pbiaas.com | ||||||
| NS | ns43.domaincontrol.com ⭐ | ||||||
| A | 2603:5:2152::16🇺🇸 GODADDY-DNS2603:5:2150::/44 | ||||||
| PTR | ns43.domaincontrol.com | ||||||
| A | 97.74.101.22🇺🇸 GODADDY-DNS97.74.100.0/23 | ||||||
| PTR | ns43.domaincontrol.com | ||||||
| NS | ns44.domaincontrol.com | ||||||
| A | 2603:5:2252::16🇺🇸 GODADDY-DNS2603:5:2250::/44 | ||||||
| PTR | ns44.domaincontrol.com | ||||||
| A | 173.201.69.22🇺🇸 GODADDY-DNS173.201.68.0/23 | ||||||
| PTR | ns44.domaincontrol.com | ||||||
| MX | mx1.emailsrvr.com ⭐ | ||||||
| A | 146.20.161.1🇺🇸 RACKSPACE-IAD146.20.0.0/16 Rackspace US Inc | ||||||
| PTR | mx1.emailsrvr.com | ||||||
| MX | mx2.emailsrvr.com(20) | ||||||
| A | 184.106.54.2🇺🇸 RACKSPACE-ORD184.106.54.0/24 Rackspace ORD | ||||||
| PTR | mx2.emailsrvr.com | ||||||
| SOA | ns43.domaincontrol.comdns@jomax.net 2016-05-03 #0 | ||||||
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-learn.com |
DNS History
5 records (5 active, 0 former)
●NSns43.domaincontrol.com2015-07-10 → 2026-03-24 · 2 obs
● 2026-03-24 12:52:30
●NSns44.domaincontrol.com2015-07-10 → 2026-03-24 · 2 obs
● 2026-03-24 12:52:30
●MXmx1.emailsrvr.com2015-07-10 → 2026-03-24 · 2 obs
● 2026-03-24 12:52:30
●MXmx2.emailsrvr.com2015-07-10 → 2026-03-24 · 2 obs
● 2026-03-24 12:52:30
●A74.208.73.1812015-07-10 → 2026-03-24 · 2 obs
● 2026-03-24 12:52:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| 21-learn.com | ns43.domaincontrol.com, ns44.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:97.74.101.22
NS records: ns43.domaincontrol.com, ns44.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21-learn.com (unsigned zone)
⏱️ Timing
Total: 122ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 74.208.73.181 |
| NS | 2 | ns43.domaincontrol.com, ns44.domaincontrol.com |
| MX | 2 | mx1.emailsrvr.com (pri: 10), mx2.emailsrvr.com (pri: 20) |
| SOA | 1 | ns43.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns43.domaincontrol.com, ns43.domaincontrol.com, ns44.domaincontrol.com...)
Analysis
IP Addresses
21-learn.com points to a single IP address: 74.208.73.181.
Name Servers
21-learn.com is delegated to two name servers: ns43.domaincontrol.com and ns44.domaincontrol.com.
21-learn.com uses the same name server setup as other domains, including vermont-spa.com, brainer-ti.com, seopt.ch, midwaytowncenter.com and revolutionary-socialism.com.
21-learn.com at least partially shares name servers with other domains; for instance carlson-eng.com, leapoffaithtech.com and zigimail.com.
Host names with two IP numbers:
ns43.domaincontrol.com points to 2603:5:2152::16 and 97.74.101.22.
ns44.domaincontrol.com points to 2603:5:2252::16 and 173.201.69.22.
Mail Servers
21-learn.com is handled by two mail servers: mx1.emailsrvr.com and mx2.emailsrvr.com.
21-learn.com uses the same mail server setup as other domains, for instance gaynz.com, amg-gi.com, klamm.biz, riverhills-hoa.com and peseckis.net.
21-learn.com shares at least some mail servers with other domains, for example euroagro.co, theperfectbrownie.com, milestoneinternet.com.cdn.cloudflare.net, clashofsteel.org and outsmartmagazine.com.
Hostnames with a single IP
mx1.emailsrvr.com resolves to: 146.20.161.1.
mx2.emailsrvr.com resolves to: 184.106.54.2.