madcows.io - robtex.com

madcows.io

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:4768🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:9064🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.71.104Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.144.100🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSleonidas.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c65🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleonidas.ns.cloudflare.com
A2803:f800:50::6ca2:c365🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRleonidas.ns.cloudflare.com
A2a06:98c1:50::ac40:2365🇺🇸 Cloudflare2a06:98c1:50::/45
PTRleonidas.ns.cloudflare.com
A108.162.195.101🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleonidas.ns.cloudflare.com
A162.159.44.101Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleonidas.ns.cloudflare.com
A172.64.35.101🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleonidas.ns.cloudflare.com
NSromina.ns.cloudflare.com
A2606:4700:50::a29f:269f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRromina.ns.cloudflare.com
A2803:f800:50::6ca2:c29f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRromina.ns.cloudflare.com
A2a06:98c1:50::ac40:229f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRromina.ns.cloudflare.com
A108.162.194.159🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRromina.ns.cloudflare.com
A162.159.38.159Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRromina.ns.cloudflare.com
A172.64.34.159🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRromina.ns.cloudflare.com
MXin1-smtp.messagingengine.com ⭐
A103.168.172.216🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-01.messagingengine.com
A103.168.172.217🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-02.messagingengine.com
A103.168.172.218🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-03.messagingengine.com
A103.168.172.219🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-04.messagingengine.com
A103.168.172.220🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-05.messagingengine.com
A103.168.172.221🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-06.messagingengine.com
A103.168.172.222🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-07.messagingengine.com
A103.168.172.223🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-08.messagingengine.com
MXin2-smtp.messagingengine.com(20)
A202.12.124.216FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-01.messagingengine.com
A202.12.124.217FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-02.messagingengine.com
A202.12.124.218FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-03.messagingengine.com
A202.12.124.219FASTMAILPTYLTD-AS-AP202.12.124.0/24 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
IPv4104.21.71.104, 172.67.144.100
IPv62606:4700:3033::6815:4768, 2606:4700:3034::ac43:9064
SOAleonidas.ns.cloudflare.comdns@cloudflare.com serial=2398495802

io

DNSSEC🔒 Signed (DS record present)
NSa0.nic.io ⭐
NSa2.nic.io
NSb0.nic.io
NSc0.nic.io
SOAa0.nic.iohostmaster@donuts.email serial=1774580385

Same first word

madcows.io

Similar names

awsdcom.kasserver.com

DNS History

10 records (8 active, 2 former)

NSleonidas.ns.cloudflare.comromina.ns.cloudflare.comMXin1-smtp.messagingengine.comin2-smtp.messagingengine.comA104.21.71.104172.67.144.1002606:4700:3033::6815:47682606:4700:3034::ac43:9064172.64.80.12606:4700:130:436c:6f75:6466:6c61:7265
●NSleonidas.ns.cloudflare.com2026-02-27 → 2026-03-27 · 2 obs
● 2026-02-27 05:35:36
● 2026-03-27 03:05:04
●NSromina.ns.cloudflare.com2026-02-27 → 2026-03-27 · 2 obs
● 2026-02-27 05:35:36
● 2026-03-27 03:05:04
●MXin1-smtp.messagingengine.com2026-02-27 → 2026-03-27 · 2 obs
● 2026-02-27 05:35:36
● 2026-03-27 03:05:04
●MXin2-smtp.messagingengine.com2026-02-27 → 2026-03-27 · 2 obs
● 2026-02-27 05:35:36
● 2026-03-27 03:05:04
●A104.21.71.1042026-02-27 → 2026-03-27 · 5 obs
● 2026-02-27 05:35:36
● 2026-02-27 06:26:38
○ 2026-02-27 16:55:14
● 2026-02-28 08:21:04
● 2026-03-27 03:05:04
○A172.64.80.12026-02-27 → 2026-02-27 · 4 obs
○ 2026-02-27 06:26:38
● 2026-02-27 16:55:14
○ 2026-02-28 08:21:04
○ 2026-03-27 03:05:04
●A172.67.144.1002026-02-27 → 2026-03-27 · 5 obs
● 2026-02-27 05:35:36
● 2026-02-27 06:26:38
○ 2026-02-27 16:55:14
● 2026-02-28 08:21:04
● 2026-03-27 03:05:04
○A2606:4700:130:436c:6f75:6466:6c61:72652026-02-27 → 2026-02-27 · 4 obs
○ 2026-02-27 05:35:36
● 2026-02-27 06:26:38
○ 2026-02-27 16:55:14
○ 2026-03-27 03:05:04
●A2606:4700:3033::6815:47682026-02-27 → 2026-03-27 · 4 obs
● 2026-02-27 05:35:36
○ 2026-02-27 06:26:38
● 2026-02-27 16:55:14
● 2026-03-27 03:05:04
●A2606:4700:3034::ac43:90642026-02-27 → 2026-03-27 · 4 obs
● 2026-02-27 05:35:36
○ 2026-02-27 06:26:38
● 2026-02-27 16:55:14
● 2026-03-27 03:05:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
ioc0.nic.io, b0.nic.io, a0.nic.io, a2.nic.io-
madcows.ioromina.ns.cloudflare.com, leonidas.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.38.159

NS records: romina.ns.cloudflare.com, leonidas.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for madcows.io (unsigned zone)

⏱️ Timing

Total: 421ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.144.100, 104.21.71.104
AAAA22606:4700:3033::6815:4768, 2606:4700:3034::ac43:9064
NS2leonidas.ns.cloudflare.com, romina.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",
SOA1leonidas.ns.cloudflare.com dns.cloudflar

Analysis

IP Addresses

Four IP numbers are pointed to by madcows.io: 2606:4700:3033::6815:4768, 2606:4700:3034::ac43:9064, 104.21.71.104 and 172.67.144.100.

other host names including pagakecbuer.org, mattiekellyartscenter.org, dabq.cc, vbs3.com and jxvua.com share IP numbers with madcows.io.

Name Servers

madcows.io is delegated to two name servers leonidas.ns.cloudflare.com and romina.ns.cloudflare.com.

madcows.io shares the same name server setup as other domains, for instance livixbd.com, tellorc.com, introspectator.com, tasmanbd.com and sereingainetrasystem.com.

madcows.io at least partially shares name servers with other domains, for instance rushws.top, driversassociation.net, dawtit.com, zsbooks.com and confileo.com.

these name servers are commonly used alongside rafe.ns.cloudflare.com.

Host names with six IP numbers:

Host name leonidas.ns.cloudflare.com points to: 2606:4700:58::a29f:2c65, 2803:f800:50::6ca2:c365, 2a06:98c1:50::ac40:2365, 108.162.195.101, 162.159.44.101 and 172.64.35.101.

Host name romina.ns.cloudflare.com points to: 2606:4700:50::a29f:269f, 2803:f800:50::6ca2:c29f, 2a06:98c1:50::ac40:229f, 108.162.194.159, 162.159.38.159 and 172.64.34.159.

Mail Servers

Two mail servers handle madcows.io: in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

madcows.io shares the same mail server setup as other domains, for instance chai.ml, dane.im, cinemagic.com, eray.co.uk and verity.dereferenced.net.

madcows.io shares mail servers with other domains to some extent, for instance spanisheasy.com.au.

Host names with eight IPs:

in1-smtp.messagingengine.com points to 103.168.172.216103.168.172.217103.168.172.218103.168.172.219103.168.172.220103.168.172.221103.168.172.222 and 103.168.172.223.

Host names with four IPs:

in2-smtp.messagingengine.com points to 202.12.124.216202.12.124.217202.12.124.218 and 202.12.124.219.