simen.co - robtex.com

simen.co

DNSSEC🔒 Signed (DS record present)
A2606:4700:3034::ac43:8364🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:3fb🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.3.251Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.131.100🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSapollo.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b42🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRapollo.ns.cloudflare.com
A2803:f800:50::6ca2:c142🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRapollo.ns.cloudflare.com
A2a06:98c1:50::ac40:2142🇺🇸 Cloudflare2a06:98c1:50::/45
PTRapollo.ns.cloudflare.com
A108.162.193.66🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRapollo.ns.cloudflare.com
A172.64.33.66🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRapollo.ns.cloudflare.com
A173.245.59.66🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRapollo.ns.cloudflare.com
NSheather.ns.cloudflare.com
A2606:4700:50::adf5:3aa1🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRheather.ns.cloudflare.com
A2803:f800:50::6ca2:c0a1🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRheather.ns.cloudflare.com
A2a06:98c1:50::ac40:20a1🇺🇸 Cloudflare2a06:98c1:50::/45
PTRheather.ns.cloudflare.com
A108.162.192.161🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRheather.ns.cloudflare.com
A172.64.32.161🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRheather.ns.cloudflare.com
A173.245.58.161🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRheather.ns.cloudflare.com
MXin1-smtp.messagingengine.com ⭐
A103.168.172.216🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-01.messagingengine.com
A103.168.172.217🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-02.messagingengine.com
A103.168.172.218🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-03.messagingengine.com
A103.168.172.219🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-04.messagingengine.com
A103.168.172.220🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-05.messagingengine.com
A103.168.172.221🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-06.messagingengine.com
A103.168.172.222🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-07.messagingengine.com
A103.168.172.223🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-08.messagingengine.com
MXin2-smtp.messagingengine.com(20)
A202.12.124.216TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-01.messagingengine.com
A202.12.124.217TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-02.messagingengine.com
A202.12.124.218TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-03.messagingengine.com
A202.12.124.219TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-04.messagingengine.com
TXTv=spf1 include:spf.messagingengine.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.3.251, 172.67.131.100
IPv6 hints2606:4700:3034::ac43:8364, 2606:4700:3035::6815:3fb
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=12, name=cloudflare-ech.com
SOAapollo.ns.cloudflare.comdns@cloudflare.com serial=2410313903

co

DNSSEC🔒 Signed (DS record present)
NSns0.centralnic.net ⭐
NSa.registrydns.co
NSb.registrydns.co
NSc.registrydns.co
NSd.registrydns.co
SOAns0.centralnic.nethostmaster@centralnic.net serial=1759718481
🔒 HSTS Preload (+subdomains)

Same first word

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ismen.com
misen.co

DNS History

18 records (8 active, 10 former)

201820192020202120222023202420252026NSapollo.ns.cloudflare.comheather.ns.cloudflare.comns10.wixdns.netns11.wixdns.netMXin1-smtp.messagingengine.comin2-smtp.messagingengine.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comA104.21.3.251172.67.131.1002606:4700:3034::ac43:83642606:4700:3035::6815:3fb23.236.62.1472606:4700:3031::6815:3fb2606:4700:3036::ac43:8364
●NSapollo.ns.cloudflare.com2026-04-13 → 2026-07-28 · 3 obs
○ 2017-01-01 18:47:26
● 2026-04-13 18:34:38
● 2026-07-28 13:14:34
●NSheather.ns.cloudflare.com2026-04-13 → 2026-07-28 · 3 obs
○ 2017-01-01 18:47:26
● 2026-04-13 18:34:38
● 2026-07-28 13:14:34
○NSns10.wixdns.net2017-01-01 → 2017-01-01 · 3 obs
● 2017-01-01 18:47:26
○ 2026-04-13 18:34:38
○ 2026-07-28 13:14:34
○NSns11.wixdns.net2017-01-01 → 2017-01-01 · 3 obs
● 2017-01-01 18:47:26
○ 2026-04-13 18:34:38
○ 2026-07-28 13:14:34
○MXalt1.aspmx.l.google.com2017-01-01 → 2017-01-01 · 3 obs
● 2017-01-01 18:47:26
○ 2026-04-13 18:34:38
○ 2026-07-28 13:14:34
○MXalt2.aspmx.l.google.com2017-01-01 → 2017-01-01 · 3 obs
● 2017-01-01 18:47:26
○ 2026-04-13 18:34:38
○ 2026-07-28 13:14:34
○MXaspmx.l.google.com2017-01-01 → 2017-01-01 · 3 obs
● 2017-01-01 18:47:26
○ 2026-04-13 18:34:38
○ 2026-07-28 13:14:34
○MXaspmx2.googlemail.com2017-01-01 → 2017-01-01 · 3 obs
● 2017-01-01 18:47:26
○ 2026-04-13 18:34:38
○ 2026-07-28 13:14:34
○MXaspmx3.googlemail.com2017-01-01 → 2017-01-01 · 3 obs
● 2017-01-01 18:47:26
○ 2026-04-13 18:34:38
○ 2026-07-28 13:14:34
●MXin1-smtp.messagingengine.com2026-04-13 → 2026-07-28 · 3 obs
○ 2017-01-01 18:47:26
● 2026-04-13 18:34:38
● 2026-07-28 13:14:34
●MXin2-smtp.messagingengine.com2026-04-13 → 2026-07-28 · 3 obs
○ 2017-01-01 18:47:26
● 2026-04-13 18:34:38
● 2026-07-28 13:14:34
●A104.21.3.2512026-04-13 → 2026-07-28 · 3 obs
○ 2017-01-01 18:47:26
● 2026-04-13 18:34:38
● 2026-07-28 13:14:34
●A172.67.131.1002026-04-13 → 2026-07-28 · 3 obs
○ 2017-01-01 18:47:26
● 2026-04-13 18:34:38
● 2026-07-28 13:14:34
○A23.236.62.1472017-01-01 → 2017-01-01 · 3 obs
● 2017-01-01 18:47:26
○ 2026-04-13 18:34:38
○ 2026-07-28 13:14:34
○A2606:4700:3031::6815:3fb2026-04-13 → 2026-06-17 · 5 obs
○ 2017-01-01 18:47:26
● 2026-04-13 18:34:38
● 2026-06-17 22:41:16
○ 2026-07-08 11:52:58
○ 2026-07-28 13:14:34
●A2606:4700:3034::ac43:83642026-07-08 → 2026-07-28 · 3 obs
○ 2026-06-17 22:41:16
● 2026-07-08 11:52:58
● 2026-07-28 13:14:34
●A2606:4700:3035::6815:3fb2026-07-08 → 2026-07-28 · 3 obs
○ 2026-06-17 22:41:16
● 2026-07-08 11:52:58
● 2026-07-28 13:14:34
○A2606:4700:3036::ac43:83642026-04-13 → 2026-06-17 · 5 obs
○ 2017-01-01 18:47:26
● 2026-04-13 18:34:38
● 2026-06-17 22:41:16
○ 2026-07-08 11:52:58
○ 2026-07-28 13:14:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coa.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co-
simen.coapollo.ns.cloudflare.com, heather.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.59.66

NS records: apollo.ns.cloudflare.com, heather.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 623ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.131.100, 104.21.3.251
AAAA22606:4700:3034::ac43:8364, 2606:4700:3035::6815:3fb
NS2apollo.ns.cloudflare.com, heather.ns.cloudflare.com
MX2in1-smtp.messagingengine.com (pri: 10), in2-smtp.messagingengine.com (pri: 20)
TXT1v=spf1 include:spf.messagingengine.com ~
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1apollo.ns.cloudflare.com dns.cloudflare.

Analysis

IP Addresses

simen.co has four IP addresses: 104.21.3.251, 172.67.131.100, 2606:4700:3034::ac43:8364 and 2606:4700:3035::6815:3fb.

utvgunracks.com, www.cyberplexus.com, mortgage-makeovers.com and two other host names share IP numbers with simen.co.

Name Servers

simen.co is served by two delegated name servers, apollo.ns.cloudflare.com and heather.ns.cloudflare.com.

simen.co uses the same name servers as several other domains — among them gwq.co.uk, simenask.com, wibo.online and two more.

simen.co partially shares its NS delegation with several other domains, including suroso88.me, asppi.org, byutiful.net and two others.

These name servers regularly co-occur with the name servers crystal.ns.cloudflare.com, rex.ns.cloudflare.com and lucy.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

apollo.ns.cloudflare.com carries IP addresses 108.162.193.66, 172.64.33.66 and 173.245.59.66, with 3 other addresses beyond those.

heather.ns.cloudflare.com carries IP addresses 108.162.192.161, 172.64.32.161 and 173.245.58.161, with 3 other addresses beyond those.

Mail Servers

Mail for simen.co is handled by two mail servers — in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

simen.co uses an identical mail server configuration to several other domains — among them thebloors.co.uk, flyingpenguins.co.nz, cutting.io and two more.

simen.co partially shares its mail servers with other domains, ferra.fi and chi1.swiftnode.net being examples.

Hostnames that resolve to 8 IP addresses:

in1-smtp.messagingengine.com carries IP addresses 103.168.172.216, 103.168.172.217 and 103.168.172.218, with 5 other addresses beyond those.

Hosts that point to four IP numbers:

in2-smtp.messagingengine.com maps to the following IP addresses: 202.12.124.216, 202.12.124.217, 202.12.124.218 and 202.12.124.219.