ultravailable.net - robtex.com
ultravailable.net
| 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 | ||||||
| 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 | ||||||
net
| 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=1774609367 | ||||||
Same first word
DNS History
7 records (4 active, 3 former)
●NSns0.attdns.net2015-06-10 → 2026-03-27 · 2 obs
● 2026-03-27 11:17:28
●NSns10a.attdns.net2015-06-10 → 2026-03-27 · 2 obs
● 2026-03-27 11:17:28
●NSns10b.attdns.net2015-06-10 → 2026-03-27 · 2 obs
● 2026-03-27 11:17:28
●NSns10d.attdns.net2026-02-18 → 2026-03-27 · 3 obs
● 2026-02-18 18:17:56
● 2026-03-27 11:17:28
○MX.2026-02-18 → 2026-03-27 · 2 obs
○ 2026-03-27 11:17:28
○A144.160.155.432015-06-10 → 2016-01-16 · 4 obs
● 2016-01-16 05:28:58
○ 2016-04-10 19:30:28
○ 2026-03-27 11:17:28
○A144.160.36.422015-06-10 → 2016-01-16 · 4 obs
● 2016-01-16 05:28:58
○ 2016-04-10 19:30:28
○ 2026-03-27 11:17:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | h.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net... | - |
| ultravailable.net | ns10a.attdns.net, ns10b.attdns.net, ns10d.attdns.net | 3 records |
✅ Authoritative Response
Server:144.160.128.159
NS records: ns10a.attdns.net, ns10b.attdns.net, ns10d.attdns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ultravailable.net (unsigned zone)
⏱️ Timing
Total: 293ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | ns10d.attdns.net, ns10b.attdns.net... |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns0.attdns.net eiss-dns.att.com |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns10a.attdns.net, ns10b.attdns.net, ns10d.attdns.net)
Analysis
Name Servers
ultravailable.net is delegated to four name servers: ns0.attdns.net, ns10a.attdns.net, ns10b.attdns.net and ns10d.attdns.net.
ultravailable.net at least partially shares name servers with other domains such as 142.93.108.in-addr.arpa, 221.226.162.in-addr.arpa, 84.213.68.in-addr.arpa, 176.128.107.in-addr.arpa and 99.102.99.in-addr.arpa.
these name servers are commonly used with the name servers ns0.attdns.com.
Host names with one IP number:
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