mathcourse.ru - dns.ninja
mathcourse.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=4069448 | ||||||
Same first word
mathcourse.net |
mathcourse.com |
mathcourse.ru |
Similar names
mathsource.com |
muchosarte.blogspot.mx |
chumastore.com |
coursemath.com |
tourschema.nl |
marcusteoh.com |
austchrome.com.au |
austrochem.at |
austrochem.si |
DNS History
12 records (9 active, 3 former)
●NSns1.beget.com2016-12-07 → 2026-06-30 · 3 obs
● 2016-12-07 16:41:00
● 2026-06-30 23:27:34
●NSns1.beget.pro2015-10-12 → 2026-06-30 · 3 obs
● 2015-10-12 17:09:12
● 2026-06-30 23:27:34
●NSns1.beget.ru2015-05-26 → 2026-06-30 · 5 obs
● 2016-04-21 14:00:02
○ 2016-12-07 16:41:00
● 2019-12-24 02:59:00
● 2026-06-30 23:27:34
●NSns2.beget.com2016-12-07 → 2026-06-30 · 3 obs
● 2016-12-07 16:41:00
● 2026-06-30 23:27:34
●NSns2.beget.pro2015-10-12 → 2026-06-30 · 3 obs
● 2015-10-12 17:09:12
● 2026-06-30 23:27:34
●A45.130.41.132026-02-17 → 2026-06-30 · 3 obs
● 2026-02-17 12:08:58
● 2026-06-30 23:27:34
○A5.101.153.142015-10-12 → 2016-12-07 · 5 obs
● 2015-10-12 17:09:12
● 2016-12-07 16:41:00
○ 2019-12-24 02:59:00
○ 2026-06-30 23:27:34
○A5.101.153.632015-05-26 → 2015-05-26 · 3 obs
○ 2015-10-12 17:09:12
○ 2026-06-30 23:27:34
○A87.236.16.762019-12-24 → 2019-12-24 · 4 obs
● 2019-12-24 02:59:00
○ 2026-02-17 12:08:58
○ 2026-06-30 23:27:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | b.dns.ripn.net, f.dns.ripn.net, a.dns.ripn.net, d.dns.ripn.net... | - |
| mathcourse.ru | ns1.beget.ru, ns1.beget.com, ns1.beget.pro, ns2.beget.ru... | 3 records |
✅ Authoritative Response
Server:185.50.27.12
NS records: ns1.beget.ru, ns1.beget.com, ns1.beget.pro, ns2.beget.ru, ns2.beget.com, ns2.beget.pro
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathcourse.ru (unsigned zone)
⏱️ Timing
Total: 1751ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 45.130.41.13 |
| NS | 6 | ns2.beget.ru, ns1.beget.ru... |
| MX | 2 | mx1.beget.ru (pri: 10), mx2.beget.ru (pri: 20) |
| TXT | 2 | yandex-verification:dfc4fad6966789d4, v=spf1 redirect=beget.ru |
| SOA | 1 | ns1.beget.com hostmaster.beget.com |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns1.beget.ru, ns1.beget.ru, ns2.beget.ru)
Analysis
IP Addresses
mathcourse.ru resolves to one IP address: 45.130.41.13.
rostservice.com, expertsmeta.ru, sirox.ru and two other host names share IP numbers with mathcourse.ru.
Name Servers
mathcourse.ru is served by 6 authoritative name servers — among them ns1.beget.com, ns2.beget.com, ns1.beget.pro and 3 others.
At least some of mathcourse.ru's name servers are shared with other domains, for example chantimele.ru, sbidh.ru, skaz-gor.ru and two more.
It is common for these name servers to be used in conjunction with the name servers ns2.beget.pro, ns1.beget.ru and ns2.beget.ru.
Hosts with just one IP address:
The hostname ns1.beget.com resolves to 93.92.81.0.
The hostname ns2.beget.com resolves to 185.50.27.12.
The hostname ns1.beget.pro resolves to 93.92.81.0.
The hostname ns2.beget.pro resolves to 185.50.27.12.
The hostname ns1.beget.ru resolves to 5.101.159.11.
The hostname ns2.beget.ru resolves to 185.50.27.12.
ns1.beget.com along with ns1.beget.pro each resolve to 93.92.81.0 IP addresses.
The host names ns2.beget.com, ns2.beget.pro and ns2.beget.ru each resolve to 185.50.27.12.
Mail Servers
Mail for mathcourse.ru is handled by two mail servers — mx1.beget.ru and mx2.beget.ru.
mathcourse.ru uses an identical mail server configuration to several other domains — among them tonshalovo35.ru, svoe.guru, raduga-ul.ru and two more.
mathcourse.ru overlaps on mail servers with certain other domains, project-home.ru among them.
Both mx1.beget.ru and mx2.beget.ru resolve to four IP addresses: mx1.beget.ru points to 5.101.158.67, 5.101.158.68, 185.78.30.48 and 185.78.30.71 while mx2.beget.ru resolves to 5.101.158.67, 5.101.158.68, 185.78.30.48 and 185.78.30.71.
mx1.beget.ru along with mx2.beget.ru each resolve to 5.101.158.67 IP addresses.
mx1.beget.ru along with mx2.beget.ru each resolve to 5.101.158.68 IP addresses.
mx1.beget.ru along with mx2.beget.ru each resolve to 185.78.30.48 IP addresses.
mx1.beget.ru along with mx2.beget.ru each resolve to 185.78.30.71 IP addresses.