ultravailable.info - robtex.com
ultravailable.info
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns0.attdns.net ⭐ | ||||||
| A | 172.29.0.1UNSPECIFIED160.0.0.0/3 | ||||||
| NS | ns10a.attdns.net | ||||||
| A | 144.160.229.221🇺🇸 AS797144.160.0.0/15 AT&T Services, Inc. | ||||||
| PTR | ns10a.attdns.net | ||||||
| NS | ns10b.attdns.net | ||||||
| A | 144.160.128.177🇺🇸 AS797144.160.0.0/15 AT&T Services, Inc. | ||||||
| PTR | ns10b.attdns.net | ||||||
| NS | ns10d.attdns.net ⚠️ Not in parent delegation | ||||||
| A | 144.160.128.159🇺🇸 AS797144.160.0.0/15 AT&T Services, Inc. | ||||||
| PTR | ns10d.attdns.net | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns0.attdns.neteiss-dns@att.com 2025-09-10 #1 | ||||||
info
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.info.afilias-nst.info ⭐ | ||||||
| NS | a2.info.afilias-nst.info | ||||||
| NS | b0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | b2.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | c0.info.afilias-nst.info | ||||||
| NS | d0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| SOA | a0.info.afilias-nst.infohostmaster@donuts.email serial=1774589873 | ||||||
Same first word
DNS History
6 records (4 active, 2 former)
●NSns0.attdns.net2015-07-02 → 2026-03-27 · 2 obs
● 2026-03-27 05:53:58
●NSns10a.attdns.net2015-07-02 → 2026-03-27 · 2 obs
● 2026-03-27 05:53:58
●NSns10b.attdns.net2015-07-02 → 2026-03-27 · 2 obs
● 2026-03-27 05:53:58
●NSns10d.attdns.net2026-02-18 → 2026-03-27 · 3 obs
● 2026-02-18 18:17:26
● 2026-03-27 05:53:58
○A144.160.155.432015-07-02 → 2016-02-07 · 4 obs
● 2016-02-07 17:45:22
○ 2016-04-24 07:32:46
○ 2026-03-27 05:53:58
○A144.160.36.422015-07-02 → 2016-02-07 · 4 obs
● 2016-02-07 17:45:22
○ 2016-04-24 07:32:46
○ 2026-03-27 05:53:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| info | a0.info.afilias-nst.info, a2.info.afilias-nst.info, c0.info.afilias-nst.info | - |
| ultravailable.info | ns10a.attdns.net, ns10b.attdns.net | - |
✅ Authoritative Response
Server:144.160.128.177
NS records: ns10a.attdns.net, ns10b.attdns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ultravailable.info (unsigned zone)
⏱️ Timing
Total: 886ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | ns10a.attdns.net, ns10d.attdns.net... |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns0.attdns.net eiss-dns.att.com |
Analysis
Name Servers
ultravailable.info is delegated to four name servers: ns0.attdns.net, ns10a.attdns.net, ns10b.attdns.net and ns10d.attdns.net.
ultravailable.info at least partially shares name servers with other domains, including 182.49.104.in-addr.arpa, 55.51.75.in-addr.arpa, 83.172.74.in-addr.arpa, 138.20.99.in-addr.arpa and 202.148.70.in-addr.arpa.
These name servers are often used together with ns0.attdns.com.
Hostnames with a single IP:
ns0.attdns.net points to 172.29.0.1
ns10a.attdns.net points to 144.160.229.221
ns10b.attdns.net points to 144.160.128.177
ns10d.attdns.net points to 144.160.128.159