academonline.ru - dns.ninja
academonline.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 89.169.180.121🇷🇺 YandexCloud89.169.128.0/18 | ||||||
| NS | ns3.yandex.ru ⭐ | ||||||
| A | 2a02:6b8::1001🇷🇺 TELETECH2a02:6b8::/32 Yandex network | ||||||
| PTR | ns3.yandex.ru | ||||||
| A | 87.250.250.1🇷🇺 TELETECH87.250.224.0/19 Yandex network | ||||||
| PTR | ns3.yandex.ru | ||||||
| NS | ns4.yandex.ru | ||||||
| A | 2a02:6b8:0:1::1:1🇷🇺 TELETECH2a02:6b8::/32 Yandex network | ||||||
| PTR | ns4.yandex.ru | ||||||
| A | 77.88.21.1🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network | ||||||
| PTR | ns4.yandex.ru | ||||||
| TXT | _globalsign-domain-verification=W9ran4wYUCVv5ESdSJk38AGeSUsRU_gLBcac4e09os | ||||||
| SOA | ns3.yandex.rusysadmin@yandex.ru serial=1785627277 | ||||||
ru
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.ripn.net ⭐ | ||||||
| NS | b.dns.ripn.net | ||||||
| NS | c.tld-servers.ru | ||||||
| NS | d.dns.ripn.net | ||||||
| NS | e.dns.ripn.net | ||||||
| NS | f.dns.ripn.net | ||||||
| SOA | a.dns.ripn.nethostmaster@ripn.net serial=4069832 | ||||||
PTR for
Same first word
academonline.ru |
Similar names
DNS History
13 records (3 active, 10 former)
○NSns1.acase.ru2015-08-14 → 2026-02-24 · 4 obs
● 2026-02-24 02:35:42
○ 2026-04-12 02:28:26
○ 2026-08-01 23:34:38
●NSns3.yandex.ru2026-04-12 → 2026-08-01 · 3 obs
● 2026-04-12 02:28:26
● 2026-08-01 23:34:38
○NSns4-cloud.nic.ru2015-08-14 → 2016-08-18 · 4 obs
● 2016-08-18 04:35:44
○ 2026-02-24 02:35:42
○ 2026-08-01 23:34:38
○NSns4-l2.nic.ru2015-08-14 → 2016-08-18 · 4 obs
● 2016-08-18 04:35:44
○ 2026-02-24 02:35:42
○ 2026-08-01 23:34:38
○NSns4.nic.ru2026-02-24 → 2026-02-24 · 4 obs
● 2026-02-24 02:35:42
○ 2026-04-12 02:28:26
○ 2026-08-01 23:34:38
●NSns4.yandex.ru2026-04-12 → 2026-08-01 · 3 obs
● 2026-04-12 02:28:26
● 2026-08-01 23:34:38
○NSns8-cloud.nic.ru2015-08-14 → 2016-08-18 · 4 obs
● 2016-08-18 04:35:44
○ 2026-02-24 02:35:42
○ 2026-08-01 23:34:38
○NSns8-l2.nic.ru2015-08-14 → 2016-08-18 · 4 obs
● 2016-08-18 04:35:44
○ 2026-02-24 02:35:42
○ 2026-08-01 23:34:38
○NSns8.nic.ru2026-02-24 → 2026-02-24 · 4 obs
● 2026-02-24 02:35:42
○ 2026-04-12 02:28:26
○ 2026-08-01 23:34:38
○MXnew-mail-1.acase.ru2015-08-14 → 2016-08-18 · 4 obs
● 2016-08-18 04:35:44
○ 2026-02-24 02:35:42
○ 2026-08-01 23:34:38
○MXnew-mail.acase.ru2015-08-14 → 2016-08-18 · 4 obs
● 2016-08-18 04:35:44
○ 2026-02-24 02:35:42
○ 2026-08-01 23:34:38
○A194.186.75.742015-08-14 → 2016-08-18 · 4 obs
● 2016-08-18 04:35:44
○ 2026-02-24 02:35:42
○ 2026-08-01 23:34:38
●A89.169.180.1212026-04-12 → 2026-08-01 · 3 obs
● 2026-04-12 02:28:26
● 2026-08-01 23:34:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net... | - |
| academonline.ru | ns3.yandex.ru, ns4.yandex.ru | 4 records |
✅ Authoritative Response
Server:77.88.21.1
NS records: ns3.yandex.ru, ns4.yandex.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for academonline.ru (unsigned zone)
⏱️ Timing
Total: 784ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 89.169.180.121 |
| NS | 2 | ns4.yandex.ru, ns3.yandex.ru |
| TXT | 1 | _globalsign-domain-verification=W9ran4wY |
| SOA | 1 | ns3.yandex.ru sysadmin.yandex.ru |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns4.yandex.ru, ns3.yandex.ru, ns4.yandex.ru...)
Analysis
IP Addresses
academonline.ru has exactly one IP address — 89.169.180.121.
Further host names like www.acase.ru and acase.ru overlap in IP numbers with academonline.ru.
Name Servers
The NS records for academonline.ru delegate to ns3.yandex.ru and ns4.yandex.ru.
The name server configuration of academonline.ru is shared with other domains, for instance disk.yandex.kz, telephony.yandex.net, metrika.yandex.com.tr and two others.
ns3.yandex.ru resolves to 87.250.250.1 and 2a02:6b8::1001. Likewise, ns4.yandex.ru resolves to 77.88.21.1 and 2a02:6b8:0:1::1:1 — two IP addresses apiece.