`cerulean.ch`

DNSSEC	⚠️ Not signed
A	103.168.172.37^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
		PTR	`userweb.fastmail.com`
A	103.168.172.52^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
NS	`dns2.home.pl` ⭐
		A	2001:8d8:fe:53:6870::2^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`dns2.home.pl`
		A	217.160.81.248^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`dns2.home.pl`
NS	`dns.home.pl`
		A	2001:8d8:fe:53:6870::1^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`dns.home.pl`
		A	217.160.80.244^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`dns.home.pl`
NS	`dns3.home.pl`
		A	2607:f1c0:fe:53:185:132:34:251^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`dns3.home.pl`
		A	185.132.34.251^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`dns3.home.pl`
NS	`ns1.messagingengine.com` ⚠️ Not in parent delegation
		A	162.159.24.178^{Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.messagingengine.com`
NS	`ns2.messagingengine.com` ⚠️ Not in parent delegation
		A	162.159.25.191^{Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.messagingengine.com`
MX	`in1-smtp.messagingengine.com` ⭐
		A	103.168.172.216^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-01.messagingengine.com`
		A	103.168.172.217^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-02.messagingengine.com`
		A	103.168.172.218^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-03.messagingengine.com`
		A	103.168.172.219^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-04.messagingengine.com`
		A	103.168.172.220^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-05.messagingengine.com`
		A	103.168.172.221^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-06.messagingengine.com`
		A	103.168.172.222^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-07.messagingengine.com`
		A	103.168.172.223^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-08.messagingengine.com`
MX	`in2-smtp.messagingengine.com`⁽²⁰⁾
		A	202.12.124.216^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-01.messagingengine.com`
		A	202.12.124.217^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-02.messagingengine.com`
		A	202.12.124.218^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-03.messagingengine.com`
		A	202.12.124.219^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-04.messagingengine.com`
TXT	`v=spf1 include:spf.messagingengine.com ?all`
SOA	`dns.home.pl`admin@home.pl serial=1710712206

`ch`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.ch` ⭐
	NS	`b.nic.ch`
	NS	`d.nic.ch`
	NS	`e.nic.ch`
	NS	`f.nic.ch`
	SOA	`a.nic.ch`dns-operation@switch.ch 2026-03-27 #30

Same first word

cerulean.co.nz

cerulean.systems

cerulean.com.au

cerulean.ch

cerulean.in

cerulean.us

cerulean.com

cerulean.rocks

cerulean.cn

cerulean.me

cerulean.se

cerulean.co

cerulean.co.uk

cerulean.st

cerulean.org

cerulean.net

cerulean.work

cerulean.ca

Similar names

DNS History

18 records (9 active, 9 former)

●NSdns.home.pl2026-03-26 → 2026-03-27 · 3 obs

○ 2017-05-25 18:01:38
● 2026-03-26 09:41:26
● 2026-03-27 14:47:24

●NSdns2.home.pl2026-03-26 → 2026-03-27 · 3 obs

○ 2017-05-25 18:01:38
● 2026-03-26 09:41:26
● 2026-03-27 14:47:24

●NSdns3.home.pl2026-03-26 → 2026-03-27 · 3 obs

○ 2017-05-25 18:01:38
● 2026-03-26 09:41:26
● 2026-03-27 14:47:24

○NSns05.domaincontrol.com2017-05-25 → 2017-05-25 · 4 obs

○ 2015-11-07 14:37:20
● 2017-05-25 18:01:38
○ 2026-03-26 09:41:26
○ 2026-03-27 14:47:24

○NSns06.domaincontrol.com2017-05-25 → 2017-05-25 · 4 obs

○ 2015-11-07 14:37:20
● 2017-05-25 18:01:38
○ 2026-03-26 09:41:26
○ 2026-03-27 14:47:24

○NSns1.infomaniak.ch2015-07-01 → 2015-07-01 · 3 obs

● 2015-07-01 08:58:08
○ 2015-11-07 14:37:20
○ 2026-03-27 14:47:24

●NSns1.messagingengine.com2026-03-26 → 2026-03-27 · 3 obs

○ 2017-05-25 18:01:38
● 2026-03-26 09:41:26
● 2026-03-27 14:47:24

○NSns2.infomaniak.ch2015-07-01 → 2015-07-01 · 3 obs

● 2015-07-01 08:58:08
○ 2015-11-07 14:37:20
○ 2026-03-27 14:47:24

●NSns2.messagingengine.com2026-03-26 → 2026-03-27 · 3 obs

○ 2017-05-25 18:01:38
● 2026-03-26 09:41:26
● 2026-03-27 14:47:24

●MXin1-smtp.messagingengine.com2026-03-26 → 2026-03-27 · 3 obs

○ 2017-05-25 18:01:38
● 2026-03-26 09:41:26
● 2026-03-27 14:47:24

●MXin2-smtp.messagingengine.com2026-03-26 → 2026-03-27 · 3 obs

○ 2017-05-25 18:01:38
● 2026-03-26 09:41:26
● 2026-03-27 14:47:24

○MXmailstore1.secureserver.net2017-05-25 → 2017-05-25 · 4 obs

○ 2015-11-07 14:37:20
● 2017-05-25 18:01:38
○ 2026-03-26 09:41:26
○ 2026-03-27 14:47:24

○MXmta-gw.infomaniak.ch2015-07-01 → 2015-07-01 · 3 obs

● 2015-07-01 08:58:08
○ 2015-11-07 14:37:20
○ 2026-03-27 14:47:24

○MXsmtp.secureserver.net2017-05-25 → 2017-05-25 · 4 obs

○ 2015-11-07 14:37:20
● 2017-05-25 18:01:38
○ 2026-03-26 09:41:26
○ 2026-03-27 14:47:24

●A103.168.172.372026-03-26 → 2026-03-27 · 3 obs

○ 2017-05-25 18:01:38
● 2026-03-26 09:41:26
● 2026-03-27 14:47:24

●A103.168.172.522026-03-26 → 2026-03-27 · 3 obs

○ 2017-05-25 18:01:38
● 2026-03-26 09:41:26
● 2026-03-27 14:47:24

○A50.63.202.632017-05-25 → 2017-05-25 · 4 obs

○ 2015-11-07 14:37:20
● 2017-05-25 18:01:38
○ 2026-03-26 09:41:26
○ 2026-03-27 14:47:24

○A93.88.241.1302015-07-01 → 2015-07-01 · 3 obs

● 2015-07-01 08:58:08
○ 2015-11-07 14:37:20
○ 2026-03-27 14:47:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch...	-
cerulean.ch	dns2.home.pl, dns.home.pl, dns3.home.pl	-

✅ Authoritative Response

Server:185.132.34.251

NS records: dns2.home.pl, dns.home.pl, dns3.home.pl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cerulean.ch (unsigned zone)

⏱️ Timing

Total: 2148ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`103.168.172.37, 103.168.172.52`
NS	5	`ns2.messagingengine.com, dns.home.pl...`
MX	2	`in1-smtp.messagingengine.com (pri: 10), in2-smtp.messagingengine.com (pri: 20)`
TXT	1	`v=spf1 include:spf.messagingengine.com ?`
SOA	1	`dns.home.pl admin.home.pl`

Analysis

IP Addresses

cerulean.ch resolves to two IP numbers: 103.168.172.37 and 103.168.172.52.

other host names including gavagai.owmyneck.com, abdurraheem.com, www.hyrman.com, saita.lt and basarab.ca share IP numbers with cerulean.ch.

Name Servers

cerulean.ch is delegated to five name servers: ns1.messagingengine.com, ns2.messagingengine.com, dns2.home.pl, dns3.home.pl and dns.home.pl.

cerulean.ch at least partially shares name servers with other domains, for instance cloudserver027782.home.pl, cloudserver3303161-3303192.home.pl, cloudserver3124067.home.pl, przyplazy.org and yes.com.pl.

Host names with two IP numbers

dns2.home.pl points to 2001:8d8:fe:53:6870::2 and 217.160.81.248

dns3.home.pl points to 2607:f1c0:fe:53:185:132:34:251 and 185.132.34.251

dns.home.pl points to 2001:8d8:fe:53:6870::1 and 217.160.80.244

Host names with one IP number

ns1.messagingengine.com points to 162.159.24.178

ns2.messagingengine.com points to 162.159.25.191

Mail Servers

Two mail servers handle cerulean.ch: in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

cerulean.ch shares the same mail server setup as other domains, for instance the-p.net, cameronmonagle.com, streetball.name, kir.by and chrisrowley.net.

cerulean.ch shares at least partially some mail servers with other domains, including jansiv.com, apc1.desk.nl and bone.id.au.

Host names with eight IPs:

in1-smtp.messagingengine.com points to 103.168.172.216 103.168.172.217 103.168.172.218 103.168.172.219 103.168.172.220 103.168.172.221 103.168.172.222 and 103.168.172.223.

Host names with four IPs:

in2-smtp.messagingengine.com points to 202.12.124.216 202.12.124.217 202.12.124.218 and 202.12.124.219.

cerulean.ch - robtex.com

cerulean.ch

ch

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`cerulean.ch`

`ch`