certainly.at - robtex.com
certainly.at
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:4f8:d0a:20d9::2🇩🇪 Hetzner | ||||||
| PTR | dedi4813.your-server.de | ||||||
| A | 213.133.105.143🇩🇪 Hetzner | ||||||
| NS | ns1.your-server.de ⭐ | ||||||
| A | 2a01:4f8:0:1::5ddc:1🇩🇪 Hetzner | ||||||
| PTR | ns1.your-server.de | ||||||
| A | 213.133.100.102🇩🇪 Hetzner | ||||||
| PTR | ns1.your-server.de | ||||||
| NS | ns.second-ns.com | ||||||
| A | 2a01:4f8:0:a101::b:1🇩🇪 Hetzner | ||||||
| PTR | ns.second-ns.com | ||||||
| A | 213.239.204.242🇩🇪 Hetzner | ||||||
| PTR | ns.second-ns.com | ||||||
| NS | ns3.second-ns.de | ||||||
| A | 2001:67c:192c::add:b3🇩🇪 NORIS-NETWORK | ||||||
| PTR | ns3.second-ns.de | ||||||
| A | 193.47.99.4🇩🇪 NORIS-NETWORK | ||||||
| PTR | ns3.second-ns.de | ||||||
| MX | mail.certainly.at ⭐ | ||||||
| A | 2a01:4f8:d0a:20d9::2🇩🇪 Hetzner | ||||||
| PTR | dedi4813.your-server.de | ||||||
| A | 213.133.105.143🇩🇪 Hetzner | ||||||
| PTR | dedi4813.your-server.de | ||||||
| TXT | v=spf1 +a +mx ?all | ||||||
| SOA | ns1.your-server.depostmaster@your-server.de 2026-01-14 #0 | ||||||
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=1771290002 | ||||||
Up
mail.certainly.at |
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSns.second-ns.com2026-02-23 → 2026-02-23 · 2 obs
● 2026-02-23 10:07:50
●NSns1.your-server.de2026-02-23 → 2026-02-23 · 2 obs
● 2026-02-23 10:07:50
●NSns3.second-ns.de2026-02-23 → 2026-02-23 · 2 obs
● 2026-02-23 10:07:50
●MXmail.certainly.at2026-02-23 → 2026-02-23 · 2 obs
● 2026-02-23 10:07:50
●A213.133.105.1432026-02-23 → 2026-02-23 · 2 obs
● 2026-02-23 10:07:50
●A2a01:4f8:d0a:20d9::22026-02-23 → 2026-02-23 · 2 obs
● 2026-02-23 10:07:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| at | d.ns.at, j.ns.at, n.ns.at, r.ns.at... | 14 records |
| certainly.at | ns3.second-ns.de, ns1.your-server.de, ns.second-ns.com | - |
✅ Authoritative Response
Server: 193.47.99.4
NS records: ns3.second-ns.de, ns1.your-server.de, ns.second-ns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for certainly.at (unsigned zone)
⏱️ Timing
Total: 1329ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 213.133.105.143 |
| AAAA | 1 | 2a01:4f8:d0a:20d9::2 |
| NS | 3 | ns3.second-ns.de, ns.second-ns.com... |
| MX | 1 | mail.certainly.at (pri: 10) |
| TXT | 1 | v=spf1 +a +mx ?all |
| SOA | 1 | ns1.your-server.de postmaster.your-serve |
📌 Glue Records Collected
Total: 14
In-bailiwick: 14 (d.ns.at, j.ns.at, n.ns.at...)
AI analysis
The parent of mail.certainly.at is certainly.at.
certainly.at points to two IP numbers: 2a01:4f8:d0a:20d9::2 and 213.133.105.143.
Other host names such as fabrik.at, immobilien-consulting.at, dan-trendstore.at, kk-einrichtung.at and ferlin.at share IPs with certainly.at.
certainly.at is delegated to three name servers: ns.second-ns.com, ns3.second-ns.de and ns1.your-server.de.
certainly.at at least partially shares name servers with other domains, for instance danielmayr.com, 22.99.91.clients.your-server.de, ivf-mh.de, xn--marktplatzosnabrck-16b.de and outletherrieden.com.
Host ns.second-ns.com points to 2a01:4f8:0:a101::b:1 and 213.239.204.242; Host ns3.second-ns.de points to 2001:67c:192c::add:b3 and 193.47.99.4; Host ns1.your-server.de points to 2a01:4f8:0:1::5ddc:1 and 213.133.100.102.
certainly.at is handled by a single mail server, mail.certainly.at.
mail.certainly.at points to two IPs: 2a01:4f8:d0a:20d9::2 and 213.133.105.143.