osf.su - dns.ninja

osf.su

DNSSEC⚠️ Not signed
A91.226.92.10🇷🇺 ROSTELECOM-AS91.226.92.0/22
PTRv1.sibhoster.ru
NSns1.sibhoster.ru ⭐
A91.226.92.68🇷🇺 ROSTELECOM-AS91.226.92.0/22
PTRns1.sibhoster.ru
NSns2.sibhoster.ru
A91.226.93.65🇷🇺 ROSTELECOM-AS91.226.92.0/22
PTR65.93.226.91.sibhoster.ru
MXosf.su ⭐
A91.226.92.10🇷🇺 ROSTELECOM-AS91.226.92.0/22
PTRv1.sibhoster.ru
TXTv=spf1 +a +mx +ip4:91.226.92.67 +ip4:185.4.73.18 ?all
SOAns1.sibhoster.rusupport@sibhoster.ru 2026-07-23 #11

su

DNSSEC🔒 Signed (DS record present)
NSa.dns.ripn.net ⭐
NSb.dns.ripn.net
NSc.tld-servers.ru
NSd.dns.ripn.net
NSe.dns.ripn.net
NSf.dns.ripn.net
SOAa.dns.ripn.nethostmaster@ripn.net serial=650210165
⚠️ On DNS blocklist: spam-tlds

MX for

osf.su

Subdomains

www.osf.su

Same first word

osf.to
osf.no
osf.nu
osf.care
osf.ie
osf.se
osf.cz
osf.or.jp
osf.lt
osf.jobs
osf.org.za
osf.ink
osf.pt
osf.org.ua
osf.ch
osf.hu
osf.net.au
osf.at
osf.co.nz
osf.biz
osf.io
osf.fr
osf.ca
osf.ru
osf.careers
osf.de
osf.co.uk
osf.nic.in
osf.su
osf.org
osf.be
osf.com
osf.sk
osf.it
osf.dev
osf.pl
osf.bg
osf.co
osf.fi
osf.jp
osf.cc
osf.cn
osf.eu
osf.co.kr
osf.pe
osf.am
osf.digital
osf.nl
osf.ro
osf.kr
osf.es

Similar names

ofs.ch
fso.com
fso.cz
fos.fr
ofs.org
fos.edu.gr
ofs.me
fos.nu
fso.ch
sfo.ie
sof.in
sof.info
fos.dental
fso.ro
fos.kr
fos.to
sof.sg
sof.tokyo
fos.pt
fos.ru
fos.io
ofs.com.pt
fso.gov.hk
sof.rs
sfo.com
fso.fo
sof.ca
fos.se
fso.nyc
sfo.nu
ofs.solutions
fos.center
fos.vn
sof.mx
sof.com.vn
fso.co
sof.dance
fos.no
sof.edu
fos.ch
sof.ch
sfo.fr
fso.at
ofs.lu
ofs.lt
sof.sk
sfo.dk
fso.com.pt
sfo.limo
sfo.jp
fso.info
fso.net
ofs.se
sof.ru
fos.support
fos.co.th
sfo.com.ua
sfo.fi
fos.or.kr
sfo.govt.nz
ofs.by
fos.consulting
fso.cn
fos.co.kr
fos.ai
sof.az
fso.gov
sof.cl
sfo.ca
sof.news
fso.de
sfo.pl
sof.to
fso.co.nz
sof.one
ofs.edu.sg
fso.me
sof.de
sof.su
sof.org.in
fso.nu
fso.gov.ru
ofs.ru

DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026NSns1.sibhoster.runs2.sibhoster.ruMXosf.suA91.226.92.1091.226.92.27
●NSns1.sibhoster.ru2015-08-04 → 2026-08-11 · 2 obs
● 2015-08-04 22:35:54
● 2026-08-11 03:51:06
●NSns2.sibhoster.ru2015-08-04 → 2026-08-11 · 2 obs
● 2015-08-04 22:35:54
● 2026-08-11 03:51:06
●MXosf.su2015-08-04 → 2026-08-11 · 2 obs
● 2015-08-04 22:35:54
● 2026-08-11 03:51:06
●A91.226.92.102020-11-21 → 2026-08-11 · 3 obs
○ 2017-09-23 04:18:56
● 2020-11-21 08:43:50
● 2026-08-11 03:51:06
○A91.226.92.272015-08-04 → 2017-09-23 · 4 obs
● 2015-08-04 22:35:54
● 2017-09-23 04:18:56
○ 2020-11-21 08:43:50
○ 2026-08-11 03:51:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
sua.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...-
osf.suns1.sibhoster.ru, ns2.sibhoster.ru-

✅ Authoritative Response

Server:91.226.92.68

NS records: ns1.sibhoster.ru, ns2.sibhoster.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for osf.su (unsigned zone)

⏱️ Timing

Total: 4726ms | Queries: -

📄 Records

TypeCountSample Data
A191.226.92.10
NS2ns1.sibhoster.ru, ns2.sibhoster.ru
MX1osf.su (pri: 0)
TXT1v=spf1 +a +mx +ip4:91.226.92.67 +ip4:185
SOA1ns1.sibhoster.ru support.sibhoster.ru

Analysis

Hierarchy

osf.su serves as the parent of www.osf.su.

Mail Server Role

osf.su handles its own mail, functioning as its own mail server.

IP Addresses

osf.su resolves to just one IP address, 91.226.92.10.

Two other host names, along with sh.ru, russian-vuz.ru and webdisk.snn.ru, also share IP numbers with osf.su.

Name Servers

osf.su has two authoritative name servers — ns1.sibhoster.ru and ns2.sibhoster.ru.

osf.su shares its NS records with other domains, for example v1.sibhoster.ru, rusmaster.com, archipool.ru and two others.

The name servers for osf.su overlap at least partially with those of other domains — for example xn----8sbkqpbfleeee5b.xn--p1ai.

ns1.sibhoster.ru directs to 91.226.92.68 and ns2.sibhoster.ru directs to 91.226.93.65; each host name points to exactly one IP number.

Mail Servers

osf.su is served by just one mail server: osf.su.

osf.su points to one IP number — 91.226.92.10.