ultravailable.com - robtex.com
ultravailable.com
| 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 | ||||||
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=1774613327 | ||||||
Same first word
DNS History
6 records (4 active, 2 former)
●NSns0.attdns.net2015-06-11 → 2026-03-27 · 2 obs
● 2026-03-27 12:19:38
●NSns10a.attdns.net2015-06-11 → 2026-03-27 · 2 obs
● 2026-03-27 12:19:38
●NSns10b.attdns.net2015-06-11 → 2026-03-27 · 2 obs
● 2026-03-27 12:19:38
●NSns10d.attdns.net2026-02-18 → 2026-03-27 · 3 obs
● 2026-02-18 18:16:56
● 2026-03-27 12:19:38
○A144.160.155.432015-06-11 → 2016-01-17 · 4 obs
● 2016-01-17 04:51:44
○ 2016-04-10 09:36:16
○ 2026-03-27 12:19:38
○A144.160.36.422015-06-11 → 2016-01-17 · 4 obs
● 2016-01-17 04:51:44
○ 2016-04-10 09:36:16
○ 2026-03-27 12:19:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | g.gtld-servers.net, m.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net... | - |
| ultravailable.com | 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.com (unsigned zone)
⏱️ Timing
Total: 542ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | ns10b.attdns.net, ns10a.attdns.net... |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns0.attdns.net eiss-dns.att.com |
Analysis
Name Servers
ultravailable.com is delegated to four name servers: ns0.attdns.net, ns10a.attdns.net, ns10b.attdns.net and ns10d.attdns.net.
At least part of the name servers for ultravailable.com are shared with other domains, for instance 37.68.108.in-addr.arpa, indianabell.org, 126.10.99.in-addr.arpa, 159.83.108.in-addr.arpa and attwireless4less.com.
These name servers are commonly used alongside the name servers ns0.attdns.com.
Host names with one 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.