`st21.ru`

DNSSEC	⚠️ Not signed
A	81.177.139.234^{🇷🇺 RTCOMM-AS81.177.128.0/19 RTCOMM-RU}
		PTR	`srv24-h-st.jino.ru`
NS	`ns1.jino.ru` ⭐
		A	217.107.34.200^{🇷🇺 RTCOMM-AS217.107.0.0/18 RTCOMM-RU}
			PTR	`ns1.jino.ru`
NS	`ns2.jino.ru`
		A	2001:1bb0:e000:1e::917^{🇷🇺 RTCOMM-AS2001:1bb0::/32 RTCOMM-RU}
		A	195.161.62.86^{🇷🇺 RTCOMM-AS195.161.0.0/16 RTCOMM-RU}
			PTR	`ns2.jino.ru`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c19::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bk-in-f27.1e100.net`
		A	172.253.62.27^{🇺🇸 Google172.253.62.0/24}
			PTR	`bc-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4003:c30::1b^{🇺🇸 Google2607:f8b0:4003::/48}
			PTR	`yutulis-in-f27.1e100.net`
		A	74.125.27.26^{🇺🇸 Google74.125.27.0/24}
			PTR	`yutulis-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4001:c70::1a^{🇺🇸 Google2607:f8b0:4001::/48}
			PTR	`yucbful-in-f26.1e100.net`
		A	192.178.209.26^{🇺🇸 Google192.178.209.0/24}
			PTR	`yucbful-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4024:c0d::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`mj-in-f27.1e100.net`
		A	192.178.152.26^{🇺🇸 Google192.178.152.0/24}
			PTR	`mj-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4023:403::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`gg-in-f26.1e100.net`
		A	142.250.96.27^{🇺🇸 Google142.250.96.0/24}
			PTR	`gg-in-f27.1e100.net`
TXT	`google-site-verification=jIgiKd7CnzSI5Zp_m7rOpckbgRvO1f4GV_0p0dWJHIc`
SOA	`ns1.jino.ru`hostmaster@jino@ru 2010-06-28 #3

`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.net`hostmaster@ripn.net serial=4068147

Subdomains

www.st21.ru

mail.st21.ru

my.st21.ru

Same first word

st21.eu

st21.biz

st21.com

st21.jp

st21.ru

st21.cn

st21.de

st21.info

st21.dk

st21.com.br

st21.co.uk

Similar names

21st.digital

21st.org

21st.de

12st.com

21st.ru

21st.at

s1t2.com.au

21st.info

s21t.xyz

s12t.com

21st.net

s1t2.com

21st.biz

21ts.com

21st.solutions

12ts.com

t21s.jp

21st.cc

21st.ai

st12.co.uk

21st.dk

21st.gold

21st.us

ts21.org

21st.cl

st12.com

st12.ca

21st.ca

21st.dev

21st.jp

st12.net

21st.careers

ts12.net

21st.wpmudev.host

21st.eu

12st.de

21st.click

12st.su

21st.com

ts21.ru

st12.ru

st12.org

ts12.com

21st.mobi

ts12.de

12st.cn

1st2.com

st12.de

1st2.net

21st.se

t2s1.com

ts21.com

12st.net

DNS History

13 records (8 active, 5 former)

●NSns1.jino.ru2008-11-23 → 2026-03-20 · 2 obs

● 2008-11-23 18:25:46
● 2026-03-20 20:32:50

●NSns2.jino.ru2008-11-23 → 2026-03-20 · 2 obs

● 2008-11-23 18:25:46
● 2026-03-20 20:32:50

●MXalt1.aspmx.l.google.com2026-02-15 → 2026-03-20 · 3 obs

○ 2017-10-09 03:05:18
● 2026-02-15 05:51:26
● 2026-03-20 20:32:50

●MXalt2.aspmx.l.google.com2026-02-15 → 2026-03-20 · 3 obs

○ 2017-10-09 03:05:18
● 2026-02-15 05:51:26
● 2026-03-20 20:32:50

●MXalt3.aspmx.l.google.com2026-02-15 → 2026-03-20 · 3 obs

○ 2017-10-09 03:05:18
● 2026-02-15 05:51:26
● 2026-03-20 20:32:50

●MXalt4.aspmx.l.google.com2026-02-15 → 2026-03-20 · 3 obs

○ 2017-10-09 03:05:18
● 2026-02-15 05:51:26
● 2026-03-20 20:32:50

●MXaspmx.l.google.com2026-02-15 → 2026-03-20 · 3 obs

○ 2017-10-09 03:05:18
● 2026-02-15 05:51:26
● 2026-03-20 20:32:50

○MXmail.st21.ru2008-11-23 → 2017-10-09 · 4 obs

● 2008-11-23 18:25:46
● 2017-10-09 03:05:18
○ 2026-02-15 05:51:26
○ 2026-03-20 20:32:50

○A217.107.219.832016-09-26 → 2017-10-09 · 5 obs

○ 2016-07-19 13:30:10
● 2016-09-26 14:07:30
● 2017-10-09 03:05:18
○ 2026-02-15 05:51:26
○ 2026-03-20 20:32:50

○A217.107.34.492008-11-23 → 2008-11-23 · 3 obs

● 2008-11-23 18:25:46
○ 2015-09-02 10:42:58
○ 2026-03-20 20:32:50

○A81.177.139.122015-09-02 → 2015-12-01 · 5 obs

○ 2008-11-23 18:25:46
● 2015-09-02 10:42:58
● 2015-12-01 12:09:28
○ 2015-12-26 16:41:08
○ 2026-03-20 20:32:50

●A81.177.139.2342026-02-15 → 2026-03-20 · 3 obs

○ 2017-10-09 03:05:18
● 2026-02-15 05:51:26
● 2026-03-20 20:32:50

○A81.177.139.922015-12-26 → 2016-07-19 · 5 obs

○ 2015-12-01 12:09:28
● 2015-12-26 16:41:08
● 2016-07-19 13:30:10
○ 2016-09-26 14:07:30
○ 2026-03-20 20:32:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...	-
st21.ru	ns1.jino.ru, ns2.jino.ru	3 records

✅ Authoritative Response

Server: 195.161.62.86

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for st21.ru (unsigned zone)

⏱️ Timing

Total: 877ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.177.139.234`
NS	2	`ns1.jino.ru, ns2.jino.ru`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	1	`google-site-verification=jIgiKd7CnzSI5Zp`
SOA	1	`ns1.jino.ru hostmaster@jino.ru`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns2.jino.ru, ns1.jino.ru, ns2.jino.ru)

Analysis

Hierarchy

st21.ru has children www.st21.ru, mail.st21.ru and my.st21.ru.

IP Addresses

st21.ru resolves to a single IP: 81.177.139.234.

Other host names, for instance aa-nikishin.ru, xn----ctbhczuecps.xn--p1ai, ao72.ru, imbian.ru and yebanko.ru share IP numbers with st21.ru.

Name Servers

st21.ru has two name servers: ns1.jino.ru and ns2.jino.ru.

st21.ru shares the same name server setup as other domains, for example remeks.ru, buran21.ru, praktika-s.ru, elena-yakovleva.ru and mos-med.su.