mail.simku.com - dns.ninja

`mail.simku.com`

CNAME	`simku.com`
DNSSEC	⚠️ Not signed
A	93.185.104.27^{🇨🇿 VSHOSTING93.185.96.0/20 II.}
		PTR	`www17.pipni.cz`
NS	`ns1.ignum.com` ⭐
		A	2a00:1e40:a:53::5^{🇸🇰 IGNUM-AS2a00:1e40:a::/48}
			PTR	`ns1-bra.core.webglobe.com`
		A	185.65.223.35^{🇸🇰 IGNUM-AS185.65.223.0/24}
			PTR	`ns1-bra.core.webglobe.com`
NS	`ns2.ignum.cz`
		A	2001:1ab0:7e1e:2::5^{🇨🇿 IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`ns2-prg.core.webglobe.com`
		A	217.31.48.201^{🇨🇿 IGNUM-AS217.31.48.0/20 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`ns2-prg.core.webglobe.com`
MX	`2e28215b25ee423f.mx2.emailprofi.seznam.cz` ⭐
		A	2a02:598:2::1146^{🇨🇿 SEZNAM-CZ2a02:598:2::/48}
			PTR	`wildcard.mx2.emailprofi.seznam.cz`
		A	77.75.77.146^{🇨🇿 SEZNAM-CZ77.75.76.0/23 SEZNAM - III}
			PTR	`wildcard.mx2.emailprofi.seznam.cz`
MX	`2e28215b25ee423f.mx1.emailprofi.seznam.cz`⁽²⁰⁾
		A	2a02:598:2::1056^{🇨🇿 SEZNAM-CZ2a02:598:2::/48}
			PTR	`wildcard.mx1.emailprofi.seznam.cz`
		A	77.75.77.56^{🇨🇿 SEZNAM-CZ77.75.76.0/23 SEZNAM - III}
			PTR	`wildcard.mx1.emailprofi.seznam.cz`
TXT	`v=spf1 include:spf.seznam.cz ~all`
SOA	`ns1.ignum.com`hostmaster@ignum.cz 2026-05-02 #4

`simku.com`

	DNSSEC	⚠️ Not signed
	A	93.185.104.27^{🇨🇿 VSHOSTING93.185.96.0/20 II.}
	NS	`ns1.ignum.com` ⭐
	NS	`ns2.ignum.cz`
	MX	`2e28215b25ee423f.mx2.emailprofi.seznam.cz` ⭐
	MX	`2e28215b25ee423f.mx1.emailprofi.seznam.cz`⁽²⁰⁾
	TXT	`v=spf1 include:spf.seznam.cz ~all`
	SOA	`ns1.ignum.com`hostmaster@ignum.cz 2026-05-02 #4

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DNS History

24 records (1 active, 23 former)

○A173.194.206.1212015-07-19 → 2015-07-19 · 3 obs

● 2015-07-19 19:28:56
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○A173.194.67.1212015-11-22 → 2015-11-22 · 4 obs

○ 2015-07-19 19:28:56
● 2015-11-22 18:19:36
○ 2016-03-15 11:13:48
○ 2026-08-04 10:10:50

○A2404:6800:4003:c01::792015-07-19 → 2015-07-19 · 3 obs

● 2015-07-19 19:28:56
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○A2404:6800:4008:c06::792015-07-19 → 2015-07-19 · 3 obs

● 2015-07-19 19:28:56
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○A2607:f8b0:400d:c08::792015-07-19 → 2015-07-19 · 3 obs

● 2015-07-19 19:28:56
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○A2607:f8b0:400e:c02::792015-07-19 → 2015-07-19 · 3 obs

● 2015-07-19 19:28:56
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○A2607:f8b0:400e:c04::792015-07-19 → 2015-07-19 · 3 obs

● 2015-07-19 19:28:56
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○A2800:3f0:4003:c00::792015-07-19 → 2015-07-19 · 3 obs

● 2015-07-19 19:28:56
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○A2a00:1450:400b:c02::792015-07-19 → 2015-07-19 · 3 obs

● 2015-07-19 19:28:56
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○A2a00:1450:400c:c01::792016-03-15 → 2016-03-15 · 4 obs

○ 2015-11-22 18:19:36
● 2016-03-15 11:13:48
○ 2016-07-12 13:54:34
○ 2026-08-04 10:10:50

○A2a00:1450:400c:c05::792015-11-22 → 2015-11-22 · 4 obs

○ 2015-07-19 19:28:56
● 2015-11-22 18:19:36
○ 2016-03-15 11:13:48
○ 2026-08-04 10:10:50

○A2a00:1450:400c:c07::792016-07-12 → 2016-07-12 · 4 obs

○ 2016-03-15 11:13:48
● 2016-07-12 13:54:34
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○A64.233.186.1212015-07-19 → 2015-07-19 · 3 obs

● 2015-07-19 19:28:56
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○A64.233.188.1212015-07-19 → 2015-07-19 · 3 obs

● 2015-07-19 19:28:56
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○A74.125.129.1212015-07-19 → 2015-07-19 · 3 obs

● 2015-07-19 19:28:56
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○A74.125.130.1212015-07-19 → 2015-07-19 · 3 obs

● 2015-07-19 19:28:56
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○A74.125.133.1212016-07-12 → 2016-07-12 · 4 obs

○ 2016-03-15 11:13:48
● 2016-07-12 13:54:34
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○A74.125.195.1212016-03-15 → 2016-03-15 · 4 obs

○ 2015-11-22 18:19:36
● 2016-03-15 11:13:48
○ 2016-07-12 13:54:34
○ 2026-08-04 10:10:50

○A74.125.204.1212015-07-19 → 2015-07-19 · 3 obs

● 2015-07-19 19:28:56
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○A74.125.24.1212015-07-19 → 2015-07-19 · 3 obs

● 2015-07-19 19:28:56
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○A74.125.28.1212015-07-19 → 2015-07-19 · 3 obs

● 2015-07-19 19:28:56
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○CNAMEghs.google.com2015-07-19 → 2016-07-12 · 4 obs

● 2015-07-19 19:28:56
● 2016-07-12 13:54:34
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

○CNAMEghs.l.google.com2015-11-22 → 2016-07-12 · 5 obs

○ 2015-07-19 19:28:56
● 2015-11-22 18:19:36
● 2016-07-12 13:54:34
○ 2026-03-27 07:25:58
○ 2026-08-04 10:10:50

●CNAMEsimku.com2026-03-27 → 2026-08-04 · 3 obs

○ 2016-07-12 13:54:34
● 2026-03-27 07:25:58
● 2026-08-04 10:10:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
simku.com	ns2.ignum.cz, ns1.ignum.com	2 records

✅ Authoritative Response

Server:217.31.48.201

NS records: ns2.ignum.cz, ns1.ignum.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for simku.com (unsigned zone)

⏱️ Timing

Total: 1478ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`simku.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.ignum.com, ns1.ignum.com)

Analysis

IP Addresses

mail.simku.com points to a single IP number: 93.185.104.27.

Additional host names — popelnice.net, todorent.cz, jukeboxpronajem.cz and two others — share IP numbers with mail.simku.com.

Name Servers

mail.simku.com has two authoritative name servers — ns1.ignum.com and ns2.ignum.cz.

mail.simku.com shares its name server setup with other domains, including mypillow.sk, pragl.net, netkabel.cz and two others.

There is at least partial name server overlap between mail.simku.com and other domains — inova-gmbh.com, emersion.cz, homerlive.cz and two more among them.

Both ns1.ignum.com and ns2.ignum.cz have two IP addresses each. ns1.ignum.com resolves to 185.65.223.35 and 2a00:1e40:a:53::5; ns2.ignum.cz resolves to 217.31.48.201 and 2001:1ab0:7e1e:2::5.

Mail Servers

mail.simku.com has two mail servers: 2e28215b25ee423f.mx1.emailprofi.seznam.cz and 2e28215b25ee423f.mx2.emailprofi.seznam.cz.

mail.simku.com shares its mail server setup with other domains, such as simku.com.

Both 2e28215b25ee423f.mx1.emailprofi.seznam.cz and 2e28215b25ee423f.mx2.emailprofi.seznam.cz have two IP addresses each. 2e28215b25ee423f.mx1.emailprofi.seznam.cz resolves to 77.75.77.56 and 2a02:598:2::1056; 2e28215b25ee423f.mx2.emailprofi.seznam.cz resolves to 77.75.77.146 and 2a02:598:2::1146.