studyprof.ru - robtex.com
studyprof.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 87.249.43.137🇷🇺 TimeWeb-AS87.249.43.0/24 | ||||||
| PTR | vh430.timeweb.ru | ||||||
| NS | ns1.timeweb.ru ⭐ | ||||||
| A | 2a03:6f04:dead:bee::1🇷🇺 TimeWeb-AS2a03:6f00::/29 | ||||||
| A | 85.193.93.93🇵🇱 TimeWeb-AS85.193.93.0/24 | ||||||
| PTR | ns1.timeweb.ru | ||||||
| NS | ns2.timeweb.ru | ||||||
| A | 2a03:6f04:dead:bee::2🇷🇺 TimeWeb-AS2a03:6f00::/29 | ||||||
| A | 85.193.93.85🇵🇱 TimeWeb-AS85.193.93.0/24 | ||||||
| PTR | ns2.timeweb.ru | ||||||
| NS | ns3.timeweb.org | ||||||
| A | 2a03:6f07:4::2🇷🇺 TimeWeb-AS2a03:6f00::/29 | ||||||
| A | 217.78.234.130🇷🇺 TimeWeb-AS217.78.234.0/24 | ||||||
| NS | ns4.timeweb.org | ||||||
| A | 2a00:65e0:6:5:232a::2🇷🇺 RETNRU-SPB-AS2a00:65e0::/32 CJSC "RetnNet" | ||||||
| A | 139.45.249.139🇷🇺 RETNRU-SPB-AS139.45.248.0/21 RETN-SPB | ||||||
| PTR | gw-139.45.249.139-rt1.km.spb.retn.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 | mailru-domain: 5zWcdxacaMBQCU5D | ||||||
| TXT | v=spf1 redirect=_spf.mail.ru | ||||||
| SOA | ns1.timeweb.rudns@timeweb.ru 2026-01-20 #0 | ||||||
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=4068286 | ||||||
Subdomains
www.studyprof.ru |
Same first word
studyprof.ru |
Similar names
DNS History
12 records (6 active, 6 former)
○NSns.megagroup.ru2020-03-05 → 2020-03-05 · 3 obs
○ 2026-02-23 04:22:16
○ 2026-03-26 20:57:32
○NSns1.megagroup.ru2020-03-05 → 2020-03-05 · 3 obs
○ 2026-02-23 04:22:16
○ 2026-03-26 20:57:32
●NSns1.timeweb.ru2026-02-23 → 2026-03-26 · 3 obs
● 2026-02-23 04:22:16
● 2026-03-26 20:57:32
○NSns2.megagroup.ru2020-03-05 → 2020-03-05 · 3 obs
○ 2026-02-23 04:22:16
○ 2026-03-26 20:57:32
●NSns2.timeweb.ru2026-02-23 → 2026-03-26 · 3 obs
● 2026-02-23 04:22:16
● 2026-03-26 20:57:32
●NSns3.timeweb.org2026-02-23 → 2026-03-26 · 3 obs
● 2026-02-23 04:22:16
● 2026-03-26 20:57:32
●NSns4.timeweb.org2026-02-23 → 2026-03-26 · 3 obs
● 2026-02-23 04:22:16
● 2026-03-26 20:57:32
●MXemx.mail.ru2026-02-23 → 2026-03-26 · 3 obs
● 2026-02-23 04:22:16
● 2026-03-26 20:57:32
○MXmx1.spaceweb.ru2020-03-05 → 2020-03-05 · 3 obs
○ 2026-02-23 04:22:16
○ 2026-03-26 20:57:32
○MXmx2.spaceweb.ru2020-03-05 → 2020-03-05 · 3 obs
○ 2026-02-23 04:22:16
○ 2026-03-26 20:57:32
○A185.32.57.2252020-03-05 → 2020-03-05 · 3 obs
○ 2026-02-23 04:22:16
○ 2026-03-26 20:57:32
●A87.249.43.1372026-02-23 → 2026-03-26 · 3 obs
● 2026-02-23 04:22:16
● 2026-03-26 20:57:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | b.dns.ripn.net, e.dns.ripn.net, a.dns.ripn.net, d.dns.ripn.net... | - |
| studyprof.ru | ns1.timeweb.ru, ns2.timeweb.ru, ns3.timeweb.org, ns4.timeweb.org | 2 records |
✅ Authoritative Response
Server:85.193.93.93
NS records: ns1.timeweb.ru, ns2.timeweb.ru, ns3.timeweb.org, ns4.timeweb.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for studyprof.ru (unsigned zone)
⏱️ Timing
Total: 1297ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 87.249.43.137 |
| NS | 4 | ns4.timeweb.org, ns2.timeweb.ru... |
| MX | 1 | emx.mail.ru (pri: 10) |
| TXT | 2 | v=spf1 redirect=_spf.mail.ru, mailru-domain: 5zWcdxacaMBQCU5D |
| SOA | 1 | ns1.timeweb.ru dns.timeweb.ru |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.timeweb.ru, ns2.timeweb.ru)
Analysis
Hierarchy
studyprof.ru is a parent of www.studyprof.ru.
IP Addresses
studyprof.ru points to a single IP address: 87.249.43.137.
Other host names, for instance www.studyprof.ru, share IP numbers with studyprof.ru.
Name Servers
studyprof.ru is delegated to four name servers: ns3.timeweb.org, ns4.timeweb.org, ns1.timeweb.ru and ns2.timeweb.ru.
At least part of the name servers for studyprof.ru are shared with other domains, for instance 181.66.19.46.in-addr.arpa, c.d.d.2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.0.0.0.0.0.f.6.3.0.a.2.ip6.arpa, 2.f.8.1.0.0.0.0.0.0.0.0.0.0.0.0.1.0.0.0.5.0.0.0.0.0.f.6.3.0.a.2.ip6.arpa, penetron-don.ru and miretno.ru.
Host names with two IP numbers:
ns3.timeweb.org points to: 2a03:6f07:4::2 and 217.78.234.130
ns4.timeweb.org points to: 2a00:65e0:6:5:232a::2 and 139.45.249.139
ns1.timeweb.ru points to: 2a03:6f04:dead:bee::1 and 85.193.93.93
ns2.timeweb.ru points to: 2a03:6f04:dead:bee::2 and 85.193.93.85
Mail Servers
The mail server for studyprof.ru is emx.mail.ru.
studyprof.ru uses the same mail server setup as other domains, for instance vast.ru, krem.ru, technoexport.ru, 8pc.ru and germesplus.com.
studyprof.ru shares mail servers with other domains to some extent, for instance ooosts.ru, rombspares.ru, merem.ru and morizo.ru.
Hostname emx.mail.ru resolves to two IPs: 94.100.180.180 and 217.69.139.180.