`calendars.su`

DNSSEC	⚠️ Not signed
A	2a00:15f8:a000:5:1:11:2:5fe9^{🇷🇺 MASTERHOST-AS2a00:15f8:a000::/48}
A	2a00:15f8:a000:5:1:12:2:5fe9^{🇷🇺 MASTERHOST-AS2a00:15f8:a000::/48}
A	2a00:15f8:a000:5:1:13:2:5fe9^{🇷🇺 MASTERHOST-AS2a00:15f8:a000::/48}
A	2a00:15f8:a000:5:1:14:2:5fe9^{🇷🇺 MASTERHOST-AS2a00:15f8:a000::/48}
A	90.156.201.26^{🇷🇺 MASTERHOST-AS90.156.201.0/24}
A	90.156.201.62^{🇷🇺 MASTERHOST-AS90.156.201.0/24}
A	90.156.201.74^{🇷🇺 MASTERHOST-AS90.156.201.0/24}
A	90.156.201.76^{🇷🇺 MASTERHOST-AS90.156.201.0/24}
NS	`ns2.masterhost.ru` ⭐
		A	2a00:15f8:a000:12:1:1:2:53^{🇷🇺 MASTERHOST-AS2a00:15f8:a000::/48}
			PTR	`ns2.masterhost.ru`
		A	90.156.133.161^{🇷🇺 MASTERHOST-AS90.156.128.0/20}
			PTR	`ns2.masterhost.ru`
NS	`ns.masterhost.ru`
		A	2a00:15f8:a000:10:1:1:0:53^{🇷🇺 MASTERHOST-AS2a00:15f8:a000::/48}
			PTR	`ns.masterhost.ru`
		A	90.156.136.116^{🇷🇺 MASTERHOST-AS90.156.128.0/20}
			PTR	`ns.masterhost.ru`
NS	`ns1.masterhost.ru`
		A	2a00:15f8:a000:11:1:1:1:53^{🇷🇺 MASTERHOST-AS2a00:15f8:a000::/48}
			PTR	`ns1.masterhost.ru`
		A	90.156.137.50^{🇷🇺 MASTERHOST-AS90.156.128.0/20}
			PTR	`ns1.masterhost.ru`
MX	`mx1.masterhost.ru` ⭐
		A	90.156.132.120^{🇷🇺 MASTERHOST-AS90.156.132.0/24}
			PTR	`mx1.masterhost.ru`
SOA	`ns1.masterhost.ru`hostmaster@masterhost.ru serial=1772631915

`su`

	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=650208059

Same first word

Similar names

DNS History

19 records (12 active, 7 former)

●NSns.masterhost.ru2015-08-05 → 2026-03-19 · 2 obs

● 2015-08-05 02:55:06
● 2026-03-19 11:57:52

●NSns1.masterhost.ru2015-08-05 → 2026-03-19 · 2 obs

● 2015-08-05 02:55:06
● 2026-03-19 11:57:52

●NSns2.masterhost.ru2015-08-05 → 2026-03-19 · 2 obs

● 2015-08-05 02:55:06
● 2026-03-19 11:57:52

●MXmx1.masterhost.ru2015-08-05 → 2026-03-19 · 2 obs

● 2015-08-05 02:55:06
● 2026-03-19 11:57:52

●A2a00:15f8:a000:5:1:11:2:5fe92015-08-05 → 2026-03-19 · 2 obs

● 2015-08-05 02:55:06
● 2026-03-19 11:57:52

●A2a00:15f8:a000:5:1:12:2:5fe92015-08-05 → 2026-03-19 · 2 obs

● 2015-08-05 02:55:06
● 2026-03-19 11:57:52

●A2a00:15f8:a000:5:1:13:2:5fe92015-08-05 → 2026-03-19 · 2 obs

● 2015-08-05 02:55:06
● 2026-03-19 11:57:52

●A2a00:15f8:a000:5:1:14:2:5fe92015-08-05 → 2026-03-19 · 2 obs

● 2015-08-05 02:55:06
● 2026-03-19 11:57:52

○A90.156.201.1102017-06-22 → 2017-06-22 · 4 obs

○ 2016-08-11 20:57:28
● 2017-06-22 21:33:24
○ 2026-03-19 11:57:50
○ 2026-03-19 11:57:52

○A90.156.201.152015-08-05 → 2016-08-11 · 4 obs

● 2015-08-05 02:55:06
● 2016-08-11 20:57:28
○ 2017-06-22 21:33:24
○ 2026-03-19 11:57:52

●A90.156.201.262026-03-19 → 2026-03-19 · 3 obs

○ 2017-06-22 21:33:24
● 2026-03-19 11:57:50
● 2026-03-19 11:57:52

○A90.156.201.292017-06-22 → 2017-06-22 · 4 obs

○ 2016-08-11 20:57:28
● 2017-06-22 21:33:24
○ 2026-03-19 11:57:50
○ 2026-03-19 11:57:52

○A90.156.201.482015-08-05 → 2017-06-22 · 4 obs

● 2015-08-05 02:55:06
● 2017-06-22 21:33:24
○ 2026-03-19 11:57:50
○ 2026-03-19 11:57:52

●A90.156.201.622026-03-19 → 2026-03-19 · 3 obs

○ 2017-06-22 21:33:24
● 2026-03-19 11:57:50
● 2026-03-19 11:57:52

○A90.156.201.672015-08-05 → 2016-08-11 · 4 obs

● 2015-08-05 02:55:06
● 2016-08-11 20:57:28
○ 2017-06-22 21:33:24
○ 2026-03-19 11:57:52

●A90.156.201.742026-03-19 → 2026-03-19 · 3 obs

○ 2017-06-22 21:33:24
● 2026-03-19 11:57:50
● 2026-03-19 11:57:52

●A90.156.201.762026-03-19 → 2026-03-19 · 3 obs

○ 2017-06-22 21:33:24
● 2026-03-19 11:57:50
● 2026-03-19 11:57:52

○A90.156.201.942015-08-05 → 2016-08-11 · 4 obs

● 2015-08-05 02:55:06
● 2016-08-11 20:57:28
○ 2017-06-22 21:33:24
○ 2026-03-19 11:57:52

○A90.156.201.972017-06-22 → 2017-06-22 · 4 obs

○ 2016-08-11 20:57:28
● 2017-06-22 21:33:24
○ 2026-03-19 11:57:50
○ 2026-03-19 11:57:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
su	a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...	-
calendars.su	ns.masterhost.ru, ns1.masterhost.ru, ns2.masterhost.ru	-

✅ Authoritative Response

Server: 90.156.136.116

NS records: ns.masterhost.ru, ns1.masterhost.ru, ns2.masterhost.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for calendars.su (unsigned zone)

⏱️ Timing

Total: 1696ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`90.156.201.76, 90.156.201.74...`
AAAA	4	`2a00:15f8:a000:5:1:11:2:5fe9, 2a00:15f8:a000:5:1:12:2:5fe9...`
NS	3	`ns2.masterhost.ru, ns1.masterhost.ru...`
MX	1	`mx1.masterhost.ru (pri: 10)`
SOA	1	`ns1.masterhost.ru hostmaster.masterhost.`

Analysis

IP Addresses

calendars.su resolves to eight IP numbers: 2a00:15f8:a000:5:1:11:2:5fe9, 2a00:15f8:a000:5:1:12:2:5fe9, 2a00:15f8:a000:5:1:13:2:5fe9, 2a00:15f8:a000:5:1:14:2:5fe9, 90.156.201.26, 90.156.201.62, 90.156.201.74 and 90.156.201.76.

Other host names, for instance pizzanik.ru, kin-dza-dza.ru, aphy.ru, www.a-buro.com and consultant-mg.ru share IP numbers with calendars.su.

Name Servers

calendars.su is delegated to three name servers: ns1.masterhost.ru, ns2.masterhost.ru and ns.masterhost.ru.

calendars.su at least partially shares name servers with other domains, including pr1.ru, xmagicx.ru, nocorruption.biz, tropicarium.ru and ms-store.ru.

Host names with two IP numbers:

ns1.masterhost.ru: 2a00:15f8:a000:11:1:1:1:53 and 90.156.137.50

ns2.masterhost.ru: 2a00:15f8:a000:12:1:1:2:53 and 90.156.133.161

ns.masterhost.ru: 2a00:15f8:a000:10:1:1:0:53 and 90.156.136.116

Mail Servers

A single mail server handles calendars.su, mx1.masterhost.ru.

calendars.su shares the same mail server setup as other domains, for instance e-sci.ru, teplo-comfort.ru, igrylegocity.ru, foodranking.org and bikecenter-elki.ru.

calendars.su shares some mail servers with other domains, at least in part, for example www.elitesochi.com.

Host name mx1.masterhost.ru resolves to a single IP: 90.156.132.120.

calendars.su - robtex.com

calendars.su

su

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`calendars.su`

`su`