learn.su - dns.ninja
learn.su
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a03:6f00:6:1::bce1:1797🇷🇺 TimeWeb-AS2a03:6f00:6::/48 | ||||||
| A | 188.225.23.151🇷🇺 TimeWeb-AS188.225.23.0/24 | ||||||
| NS | kolomna.ens.mail.ru ⭐ | ||||||
| A | 94.100.180.238🇷🇺 VK-AS94.100.176.0/20 Moscow region | ||||||
| PTR | ns1.ens.mail.ru | ||||||
| NS | taganrog.ens.mail.ru | ||||||
| A | 217.69.139.164🇷🇺 VK-AS217.69.128.0/20 Moscow region | ||||||
| PTR | ns2.ens.mail.ru | ||||||
| MX | emx.mail.ru ⭐ | ||||||
| A | 94.100.180.180🇷🇺 VK-AS94.100.176.0/20 Moscow region | ||||||
| PTR | emx.mail.ru | ||||||
| A | 217.69.139.180🇷🇺 VK-AS217.69.128.0/20 Moscow region | ||||||
| PTR | emx.mail.ru | ||||||
| TXT | v=spf1 redirect=_spf.mail.ru | ||||||
| TXT | v=spf1 include:_spf.timeweb.ru ~all | ||||||
| SOA | kolomna.ens.mail.rusupport@biz.mail.ru 2026-05-18 #2 | ||||||
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=650209608 | ||||||
Same first word
Similar names
DNS History
9 records (5 active, 4 former)
●NSkolomna.ens.mail.ru2026-04-10 → 2026-06-25 · 3 obs
● 2026-04-10 08:36:02
● 2026-06-25 19:29:32
○NSns1.timeweb.ru2026-02-17 → 2026-04-05 · 4 obs
● 2026-04-05 18:16:14
○ 2026-04-10 08:36:02
○ 2026-06-25 19:29:32
○NSns2.timeweb.ru2026-02-17 → 2026-04-05 · 4 obs
● 2026-04-05 18:16:14
○ 2026-04-10 08:36:02
○ 2026-06-25 19:29:32
○NSns3.timeweb.org2026-02-17 → 2026-04-05 · 4 obs
● 2026-04-05 18:16:14
○ 2026-04-10 08:36:02
○ 2026-06-25 19:29:32
○NSns4.timeweb.org2026-02-17 → 2026-04-05 · 4 obs
● 2026-04-05 18:16:14
○ 2026-04-10 08:36:02
○ 2026-06-25 19:29:32
●NStaganrog.ens.mail.ru2026-04-10 → 2026-06-25 · 3 obs
● 2026-04-10 08:36:02
● 2026-06-25 19:29:32
●A188.225.23.1512026-02-17 → 2026-06-25 · 2 obs
● 2026-06-25 19:29:32
●A2a03:6f00:6:1::bce1:17972026-02-17 → 2026-06-25 · 2 obs
● 2026-06-25 19:29:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net... | - |
| learn.su | kolomna.ens.mail.ru, taganrog.ens.mail.ru | - |
✅ Authoritative Response
Server:94.100.180.238
NS records: kolomna.ens.mail.ru, taganrog.ens.mail.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for learn.su (unsigned zone)
⏱️ Timing
Total: 2867ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 188.225.23.151 |
| AAAA | 1 | 2a03:6f00:6:1::bce1:1797 |
| NS | 2 | kolomna.ens.mail.ru, taganrog.ens.mail.ru |
| MX | 1 | emx.mail.ru (pri: 10) |
| TXT | 2 | v=spf1 redirect=_spf.mail.ru, v=spf1 include:_spf.timeweb.ru ~all |
| SOA | 1 | kolomna.ens.mail.ru support.biz.mail.ru |
Analysis
IP Addresses
learn.su directs to two IP numbers, 188.225.23.151 and 2a03:6f00:6:1::bce1:1797
Additional host names — dapox.ru, 1of1.ru, www.pre-obraz.ru and two others — share IP numbers with learn.su.
Name Servers
Two name servers handle the delegation for learn.su: kolomna.ens.mail.ru and taganrog.ens.mail.ru.
learn.su shares its name server configuration with other domains, including ammity.ru, fins.ru and eospods.ru.
learn.su shares at least some of its name servers with other domains, including kovcheg-sp.ru, geotx.ru, geo-s.org and two others.
These name servers are frequently seen alongside pskov.ens.mail.ru, angarsk.ens.mail.ru, bataysk.ens.mail.ru and 7 other name servers.
kolomna.ens.mail.ru and taganrog.ens.mail.ru each resolve to one IP number: kolomna.ens.mail.ru points to 94.100.180.238 and taganrog.ens.mail.ru points to 217.69.139.164.
Mail Servers
learn.su has one mail server: emx.mail.ru.
learn.su shares the same mail server setup as other domains, including armstroiexport.ru, milayamia.ru, reply-accenture.us and two others.
learn.su shares at least some of its mail servers with other domains, such as all-solutions.ru and vsesem.ru.
emx.mail.ru points to two IP addresses: 94.100.180.180 and 217.69.139.180.