stud.su - robtex.com
stud.su
| DNSSEC | ⚠️ Not signed | ||||||
| A | 158.220.103.241🇩🇪 CONTABO158.220.96.0/20 | ||||||
| PTR | vmi1513402.contaboserver.net | ||||||
| NS | ns1.contabo.net ⭐ | ||||||
| A | 2a02:c207:ff00:1200::1🇩🇪 CONTABO2a02:c207::/32 | ||||||
| A | 5.180.150.13🇺🇸 CONTABO5.180.150.0/24 | ||||||
| PTR | ns1.contabo.net | ||||||
| NS | ns2.contabo.net | ||||||
| A | 2a02:c202:5028:1200::1🇩🇪 CONTABO2a02:c202::/32 | ||||||
| A | 195.179.224.10🇩🇪 CONTABO195.179.224.0/21 | ||||||
| PTR | ns2.contabo.net | ||||||
| NS | ns3.contabo.net | ||||||
| A | 2605:a140:5028:1200::1🇺🇸 CONTABO-USA2605:a140::/32 710 N Tucker Blvd. STE 400A St. Louis MO 63101 United States | ||||||
| A | 209.126.15.15🇺🇸 CONTABO-USA209.126.0.0/20 710 N Tucker Blvd. STE 400A St. Louis MO 63101 United States | ||||||
| PTR | ns3.contabo.net | ||||||
| MX | mail.stud.su ⭐ | ||||||
| A | 158.220.103.241🇩🇪 CONTABO158.220.96.0/20 | ||||||
| PTR | vmi1513402.contaboserver.net | ||||||
| SOA | ns1.contabo.nethostmaster@contabo.de serial=1778638832 | ||||||
su
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.ripn.net ⭐ | ||||||
| NS | b.dns.ripn.net | ||||||
| NS | d.dns.ripn.net | ||||||
| NS | e.dns.ripn.net | ||||||
| NS | f.dns.ripn.net | ||||||
| SOA | a.dns.ripn.nethostmaster@ripn.net serial=650209079 | ||||||
Subdomains
mail.stud.su |
Same first word
Similar names
DNS History
19 records (5 active, 14 former)
●NSns1.contabo.net2026-02-15 → 2026-05-13 · 3 obs
● 2026-02-15 11:47:16
● 2026-05-13 02:20:36
○NSns1.digitalocean.com2015-08-06 → 2015-12-05 · 4 obs
● 2015-12-05 15:55:24
○ 2016-02-29 09:30:50
○ 2026-05-13 02:20:36
○NSns1.eurobyte.ru2016-02-29 → 2019-09-04 · 5 obs
● 2016-02-29 09:30:50
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-05-13 02:20:36
●NSns2.contabo.net2026-02-15 → 2026-05-13 · 3 obs
● 2026-02-15 11:47:16
● 2026-05-13 02:20:36
○NSns2.digitalocean.com2015-08-06 → 2015-12-05 · 4 obs
● 2015-12-05 15:55:24
○ 2016-02-29 09:30:50
○ 2026-05-13 02:20:36
○NSns2.eurobyte.ru2016-02-29 → 2019-09-04 · 5 obs
● 2016-02-29 09:30:50
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-05-13 02:20:36
●NSns3.contabo.net2026-02-15 → 2026-05-13 · 3 obs
● 2026-02-15 11:47:16
● 2026-05-13 02:20:36
○NSns3.digitalocean.com2015-08-06 → 2015-12-05 · 4 obs
● 2015-12-05 15:55:24
○ 2016-02-29 09:30:50
○ 2026-05-13 02:20:36
○NSns3.eurobyte.ru2016-02-29 → 2019-09-04 · 5 obs
● 2016-02-29 09:30:50
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-05-13 02:20:36
○NSns4.eurobyte.ru2016-02-29 → 2019-09-04 · 5 obs
● 2016-02-29 09:30:50
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-05-13 02:20:36
○MXalt1.aspmx.l.google.com2016-02-29 → 2019-09-04 · 4 obs
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-05-13 02:20:36
○MXalt2.aspmx.l.google.com2016-02-29 → 2019-09-04 · 4 obs
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-05-13 02:20:36
○MXaspmx.l.google.com2016-02-29 → 2019-09-04 · 4 obs
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-05-13 02:20:36
○MXaspmx2.googlemail.com2016-02-29 → 2019-09-04 · 4 obs
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-05-13 02:20:36
○MXaspmx3.googlemail.com2016-02-29 → 2019-09-04 · 4 obs
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-05-13 02:20:36
●MXmail.stud.su2026-02-15 → 2026-05-13 · 3 obs
● 2026-02-15 11:47:16
● 2026-05-13 02:20:36
●A158.220.103.2412026-02-15 → 2026-05-13 · 3 obs
● 2026-02-15 11:47:16
● 2026-05-13 02:20:36
○A188.226.180.1152015-08-06 → 2015-12-05 · 4 obs
● 2015-12-05 15:55:24
○ 2016-02-29 09:30:50
○ 2026-05-13 02:20:36
○A46.30.42.2372016-02-29 → 2019-09-04 · 5 obs
● 2016-02-29 09:30:50
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-05-13 02:20:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | e.dns.ripn.net, a.dns.ripn.net, d.dns.ripn.net, b.dns.ripn.net... | 10 records |
| stud.su | ns3.contabo.net, ns1.contabo.net, ns2.contabo.net | - |
✅ Authoritative Response
Server:209.126.15.15
NS records: ns3.contabo.net, ns1.contabo.net, ns2.contabo.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for stud.su (unsigned zone)
⏱️ Timing
Total: 1100ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 158.220.103.241 |
| NS | 3 | ns1.contabo.net, ns2.contabo.net... |
| MX | 1 | mail.stud.su (pri: 10) |
| SOA | 1 | ns1.contabo.net hostmaster.contabo.de |
📌 Glue Records Collected
Total: 10
Out-of-bailiwick: 10 (f.dns.ripn.net, e.dns.ripn.net, d.dns.ripn.net...)
Analysis
Hierarchy
The parent of mail.stud.su is stud.su.
IP Addresses
stud.su points to a single IP number: 158.220.103.241.
Other host names, for example mail.sitestatus.co.za, vmi1513402.contaboserver.net, sitestatus.co.za and mail.stud.su share IP numbers with stud.su.
Name Servers
The domain stud.su is delegated to three name servers: ns1.contabo.net, ns2.contabo.net and ns3.contabo.net.
stud.su shares name servers with other domains at least partially, for instance 177.146.62.in-addr.arpa, dearsplanet.com, vegatestsliven.bg, 2.48.86.in-addr.arpa and clientes-smarttrack.com.
Host names with two IP numbers:
ns1.contabo.net points to 2a02:c207:ff00:1200::1 and 5.180.150.13
ns2.contabo.net points to 2a02:c202:5028:1200::1 and 195.179.224.10
ns3.contabo.net points to 2605:a140:5028:1200::1 and 209.126.15.15
Mail Servers
The mail server for stud.su is mail.stud.su.
Host name mail.stud.su resolves to IP 158.220.103.241.