undo.at - dns.ninja
undo.at
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.19.145.94🇦🇹 IONOS-AS81.19.144.0/20 World4You.com | ||||||
| PTR | www74.world4you.com | ||||||
| NS | ns1.world4you.at ⭐ | ||||||
| A | 2607:f1c0:fe:53:185:132:32:253🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US | ||||||
| PTR | ns1.world4you.at | ||||||
| A | 185.132.32.253🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS) | ||||||
| PTR | ns1.world4you.at | ||||||
| NS | ns2.world4you.at | ||||||
| A | 2001:8d8:fe:53:217:160:82:253🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific | ||||||
| PTR | ns2.world4you.at | ||||||
| A | 217.160.82.253🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific | ||||||
| PTR | ns2.world4you.at | ||||||
| MX | mail.undo.at ⭐ | ||||||
| A | 81.19.149.38🇦🇹 IONOS-AS81.19.144.0/20 World4You.com | ||||||
| PTR | mail17.world4you.com | ||||||
| TXT | v=spf1 mx include:spf.w4ymail.at -all | ||||||
| SOA | ns1.world4you.athostmaster@world4you.com 2025-03-28 #2 | ||||||
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=1782648002 | ||||||
Subdomains
mail.undo.at |
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns1.world4you.at2026-02-22 → 2026-06-28 · 2 obs
● 2026-06-28 13:48:52
●NSns2.world4you.at2026-02-22 → 2026-06-28 · 2 obs
● 2026-06-28 13:48:52
●MXmail.undo.at2026-02-22 → 2026-06-28 · 2 obs
● 2026-06-28 13:48:52
●A81.19.145.942026-02-22 → 2026-06-28 · 2 obs
● 2026-06-28 13:48:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| at | d.ns.at, j.ns.at, n.ns.at, r.ns.at... | - |
| undo.at | ns1.world4you.at, ns2.world4you.at | - |
✅ Authoritative Response
Server:185.132.32.253
NS records: ns1.world4you.at, ns2.world4you.at
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for undo.at (unsigned zone)
⏱️ Timing
Total: 1581ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.19.145.94 |
| NS | 2 | ns2.world4you.at, ns1.world4you.at |
| MX | 1 | mail.undo.at (pri: 10) |
| TXT | 1 | v=spf1 mx include:spf.w4ymail.at -all |
| SOA | 1 | ns1.world4you.at hostmaster.world4you.co |
Analysis
Hierarchy
undo.at is a parent domain of mail.undo.at.
IP Addresses
undo.at directs to one IP number, which is 81.19.145.94.
Among the host names that share IP numbers with undo.at are evamatic.de, chili-advertising.at, hmz.at and two others.
Name Servers
Two name servers handle the delegation for undo.at: ns1.world4you.at and ns2.world4you.at.
undo.at has the same name server delegation as a number of other domains, such as stopp(0x736578)kauf.at, mbasoft.at, abelundabel.at and two more.
ns1.world4you.at and ns2.world4you.at both carry two IP addresses. The A records for ns1.world4you.at are 185.132.32.253 and 2607:f1c0:fe:53:185:132:32:253; the A records for ns2.world4you.at are 217.160.82.253 and 2001:8d8:fe:53:217:160:82:253.
Mail Servers
undo.at routes its mail through a single mail server, mail.undo.at.
mail.undo.at carries a single IP number, which is 81.19.149.38.