21st4you.org - robtex.com
21st4you.org
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dbru.br.ns.els-gms.att.net ⚠️ Not in zone NS records | ||||||
| A | 2001:1890:1ff:9f0:68:94:156:134🇺🇸 AS70182001:1890::/29 AT&T Enterprises, LLC | ||||||
| PTR | dbru.br.ns.els-gms.att.net | ||||||
| A | 68.94.156.134🇺🇸 AS701868.88.0.0/13 ARIN Allocation SBC Internet Services | ||||||
| PTR | dbru.br.ns.els-gms.att.net | ||||||
| NS | dmtu.mt.ns.els-gms.att.net ⚠️ Not in zone NS records | ||||||
| A | 2001:1890:1ff:9f1:99:99:99:134🇺🇸 AS70182001:1890::/29 AT&T Enterprises, LLC | ||||||
| PTR | dmtu.mt.ns.els-gms.att.net | ||||||
| A | 99.99.99.134🇺🇸 AS701899.96.0.0/13 AT&T Enterprises, LLC | ||||||
| PTR | dmtu.mt.ns.els-gms.att.net | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1784497148 | ||||||
Same first word
DNS History
5 records (2 active, 3 former)
●NSdbru.br.ns.els-gms.att.net2015-05-23 → 2026-07-19 · 2 obs
● 2026-07-19 22:05:10
●NSdmtu.mt.ns.els-gms.att.net2015-05-23 → 2026-07-19 · 2 obs
● 2026-07-19 22:05:10
○NSns1.21st.com2015-05-23 → 2017-07-04 · 4 obs
● 2017-07-04 18:48:08
○ 2026-06-30 09:08:58
○ 2026-07-19 22:05:10
○MXsmtp3.farmersinsurance.com2015-05-23 → 2017-07-04 · 4 obs
● 2017-07-04 18:48:08
○ 2026-06-30 09:08:58
○ 2026-07-19 22:05:10
○A12.177.226.712015-05-23 → 2017-07-04 · 4 obs
● 2017-07-04 18:48:08
○ 2026-06-30 09:08:58
○ 2026-07-19 22:05:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| 21st4you.org | dbru.br.ns.els-gms.att.net, dmtu.mt.ns.els-gms.att.net | - |
✅ Authoritative Response
Server:68.94.156.134
NS records: dbru.br.ns.els-gms.att.net, dmtu.mt.ns.els-gms.att.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21st4you.org (unsigned zone)
⏱️ Timing
Total: 1481ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Name Servers
21st4you.org has two authoritative name servers — dbru.br.ns.els-gms.att.net and dmtu.mt.ns.els-gms.att.net.
The name server configuration of 21st4you.org is shared with other domains, for instance personsholdingco.com, legacybank.info, p72turion.com and two others.
The name servers of 21st4you.org overlap at least partially with those of other domains — among them rodellekitchen.com, 151.12.in-addr.arpa, decipherjobs.com and two more.
These name servers commonly appear in delegations together with cmtu.mt.ns.els-gms.att.net, cbru.br.ns.els-gms.att.net, dns3.carnival.com and 7 other.
Both dbru.br.ns.els-gms.att.net and dmtu.mt.ns.els-gms.att.net have two IP addresses each. dbru.br.ns.els-gms.att.net resolves to 68.94.156.134 and 2001:1890:1ff:9f0:68:94:156:134; dmtu.mt.ns.els-gms.att.net resolves to 99.99.99.134 and 2001:1890:1ff:9f1:99:99:99:134.