sci4u.ru - robtex.com
sci4u.ru
ru
| 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=4068265 | ||||||
Previously MX for
sci4u.ru |
Same first word
Similar names
DNS History
10 records (6 active, 4 former)
○NSns1.webhostinghub.com2015-06-26 → 2020-04-02 · 4 obs
● 2020-04-02 09:48:16
○ 2026-02-20 14:06:50
○ 2026-03-25 03:10:08
○NSns2.webhostinghub.com2015-06-26 → 2020-04-02 · 4 obs
● 2020-04-02 09:48:16
○ 2026-02-20 14:06:50
○ 2026-03-25 03:10:08
●NSns3.nic.ru2026-02-20 → 2026-03-25 · 3 obs
● 2026-02-20 14:06:50
● 2026-03-25 03:10:08
●NSns4.nic.ru2026-02-20 → 2026-03-25 · 3 obs
● 2026-02-20 14:06:50
● 2026-03-25 03:10:08
●NSns8.nic.ru2026-02-20 → 2026-03-25 · 3 obs
● 2026-02-20 14:06:50
● 2026-03-25 03:10:08
●MXmx01.nicmail.ru2026-02-20 → 2026-03-25 · 3 obs
● 2026-02-20 14:06:50
● 2026-03-25 03:10:08
●MXmx02.nicmail.ru2026-02-20 → 2026-03-25 · 3 obs
● 2026-02-20 14:06:50
● 2026-03-25 03:10:08
●MXmx03.nicmail.ru2026-02-20 → 2026-03-25 · 3 obs
● 2026-02-20 14:06:50
● 2026-03-25 03:10:08
○MXsci4u.ru2015-06-26 → 2020-04-02 · 4 obs
● 2020-04-02 09:48:16
○ 2026-02-20 14:06:50
○ 2026-03-25 03:10:08
○A192.145.238.1452015-06-26 → 2020-04-02 · 4 obs
● 2020-04-02 09:48:16
○ 2026-02-20 14:06:50
○ 2026-03-25 03:10:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | d.dns.ripn.net, b.dns.ripn.net, f.dns.ripn.net, e.dns.ripn.net... | - |
| sci4u.ru | ns3.nic.ru, ns4.nic.ru, ns8.nic.ru | - |
✅ Authoritative Response
Server:194.226.96.8
NS records: ns3.nic.ru, ns4.nic.ru, ns8.nic.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sci4u.ru (unsigned zone)
⏱️ Timing
Total: 1531ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | ns4.nic.ru, ns8.nic.ru... |
| MX | 3 | mx01.nicmail.ru (pri: 10), mx03.nicmail.ru (pri: 20)... |
| TXT | 1 | v=spf1 redirect=nicmail.ru |
| SOA | 1 | ns3.nic.ru admin.sci4u.ru |
Analysis
Name Servers
sci4u.ru is delegated to name servers ns3.nic.ru, ns4.nic.ru and ns8.nic.ru.
sci4u.ru at least partially shares name servers with other domains such as dobro-mir.ru, izdatelstvo.ru, hustledym.nichost.ru, nkvart.ru and sts-trans.ru.
These name servers are often used together with statuspage1.nic.ru, statuspage2.nic.ru, ns1.hc.ru, ns2.hc.ru, ns3-l2.nic.ru, ns4-cloud.nic.ru, ns4-l2.nic.ru, ns8-cloud.nic.ru and ns8-l2.nic.ru.
Host names with a single IP:
ns3.nic.ru points to 194.85.61.20
ns4.nic.ru points to 194.226.96.8
ns8.nic.ru points to 193.232.130.14
Mail Servers
sci4u.ru is handled by three mail servers: mx01.nicmail.ru, mx02.nicmail.ru and mx03.nicmail.ru.
sci4u.ru shares mail servers with other domains at least in part, for instance agatov.com, mail.krandetal.ru, varisco-parts.ru, ispt.nichost.ru and burvod54.ru.
Host names with four IP numbers:
mx01.nicmail.ru points to: 91.189.116.13, 91.189.116.14, 91.189.116.15 and 91.189.116.16.
mx02.nicmail.ru points to: 91.189.116.13, 91.189.116.14, 91.189.116.15 and 91.189.116.16.
Host names with one IP number:
mx03.nicmail.ru points to: 91.189.116.16.
Host names that point to 91.189.116.13: mx01.nicmail.ru and mx02.nicmail.ru.
Host names that point to 91.189.116.14: mx01.nicmail.ru and mx02.nicmail.ru.
Host names that point to 91.189.116.15: mx01.nicmail.ru and mx02.nicmail.ru.
Host names that point to 91.189.116.16: mx01.nicmail.ru, mx02.nicmail.ru and mx03.nicmail.ru.