null.at - robtex.com
null.at
at
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns.nic.at ⭐ | ||||||
| NS | d.ns.at | ||||||
| NS | j.ns.at | ||||||
| NS | n.ns.at | ||||||
| NS | ns1.univie.ac.at | ||||||
| NS | ns2.univie.ac.at | ||||||
| NS | r.ns.at | ||||||
| NS | u.ns.at | ||||||
| SOA | dns.nic.atdomain-admin@univie.ac.at serial=1778310002 | ||||||
Same first word
Similar names
DNS History
12 records (6 active, 6 former)
●NSns.udag.de2026-02-14 → 2026-05-09 · 3 obs
● 2026-02-14 22:16:34
● 2026-05-09 07:24:40
●NSns.udag.net2026-02-14 → 2026-05-09 · 3 obs
● 2026-02-14 22:16:34
● 2026-05-09 07:24:40
●NSns.udag.org2026-02-14 → 2026-05-09 · 3 obs
● 2026-02-14 22:16:34
● 2026-05-09 07:24:40
○NSns1.system.at2019-09-27 → 2021-11-25 · 5 obs
● 2019-09-27 11:30:48
● 2021-11-25 08:33:02
○ 2026-02-14 22:16:34
○ 2026-05-09 07:24:40
○NSns1.upserver.at2015-04-14 → 2016-10-24 · 4 obs
● 2016-10-24 14:00:52
○ 2019-09-27 11:30:48
○ 2026-05-09 07:24:40
○NSns2.system.at2019-09-27 → 2021-11-25 · 5 obs
● 2019-09-27 11:30:48
● 2021-11-25 08:33:02
○ 2026-02-14 22:16:34
○ 2026-05-09 07:24:40
○NSns2.upserver.at2015-04-14 → 2016-10-24 · 4 obs
● 2016-10-24 14:00:52
○ 2019-09-27 11:30:48
○ 2026-05-09 07:24:40
●MXmail.protonmail.ch2026-02-14 → 2026-05-09 · 3 obs
● 2026-02-14 22:16:34
● 2026-05-09 07:24:40
○MXmail.system.at2019-09-27 → 2021-11-25 · 5 obs
● 2019-09-27 11:30:48
● 2021-11-25 08:33:02
○ 2026-02-14 22:16:34
○ 2026-05-09 07:24:40
○MXmail.upserver.at2015-04-14 → 2016-10-24 · 4 obs
● 2016-10-24 14:00:52
○ 2019-09-27 11:30:48
○ 2026-05-09 07:24:40
●MXmailsec.protonmail.ch2026-02-14 → 2026-05-09 · 3 obs
● 2026-02-14 22:16:34
● 2026-05-09 07:24:40
●A89.31.143.902026-02-14 → 2026-05-09 · 2 obs
● 2026-05-09 07:24:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| at | ns1.univie.ac.at, n.ns.at, ns2.univie.ac.at, j.ns.at... | - |
| null.at | ns.udag.de, ns.udag.net, ns.udag.org | - |
✅ Authoritative Response
Server:185.132.34.253
NS records: ns.udag.de, ns.udag.net, ns.udag.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for null.at (unsigned zone)
⏱️ Timing
Total: 1504ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 89.31.143.90 |
| NS | 3 | ns.udag.net, ns.udag.org... |
| MX | 2 | mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20) |
| TXT | 2 | protonmail-verification=5c7707f44fff4046, v=spf1 include:_spf.protonmail.ch ~all |
| SOA | 1 | ns.udag.de hostmaster.united-domains.de |
Analysis
IP Addresses
null.at points to a single IP number: 89.31.143.90.
Other host names, for instance apm-nrw.de, mail.dold-werbung.de, powerservice.mobi, mail.evergabe-esender.de and jobrobot.dk share IP numbers with null.at.
Name Servers
The domain null.at is delegated to three name servers: ns.udag.de, ns.udag.net and ns.udag.org.
null.at shares name servers with other domains at least partially, for instance ampius.cl, massivmoebel.at, bofarull.de, prostrom.net and xn--efsane-dner-yfb.de.
Host names with two IP numbers:
ns.udag.de points to 2001:8d8:fe:53:217:160:80:253 and 217.160.80.253
ns.udag.net points to 2607:f1c0:fe:53:185:132:33:253 and 185.132.33.253
ns.udag.org points to 2607:f1c0:fe:53:185:132:34:253 and 185.132.34.253
Mail Servers
null.at is handled by two mail servers: mail.protonmail.ch and mailsec.protonmail.ch.
null.at shares the same mail server setup as other domains, including knal.es, havlick.net, zueri.city, logal.dev and d-e-u-s.art.
null.at shares some mail servers with other domains, including theaaacompany.com, sigaba.net, dhoye.com, orlando.la and globalmeddirect.com.
Host names with three IP numbers: mail.protonmail.ch points to 176.119.200.128, 185.70.42.128 and 185.205.70.128; mailsec.protonmail.ch points to 176.119.200.129, 185.70.42.129 and 185.205.70.129.