mail.co2k.com - robtex.com

mail.co2k.com

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:fb0🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:a395🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.15.176Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.163.149🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.15.176, 172.67.163.149
IPv6 hints2606:4700:3032::6815:fb0, 2606:4700:3035::ac43:a395
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=85, name=cloudflare-ech.com

co2k.com

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:fb0🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:a395🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.15.176Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.163.149🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSgraham.ns.cloudflare.com ⭐
NSnena.ns.cloudflare.com
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(20)
MXalt2.aspmx.l.google.com(20)
MXaspmx2.googlemail.com(40)
MXaspmx3.googlemail.com(50)
TXTgoogle-site-verification=XLmqpe9jqEzy2J6uQ3e1uZCwj6eS608Tjz79s6lWg0E
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.15.176, 172.67.163.149
IPv6 hints2606:4700:3032::6815:fb0, 2606:4700:3035::ac43:a395
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=85, name=cloudflare-ech.com
SOAgraham.ns.cloudflare.comdns@cloudflare.com serial=2402709185

Same first word

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DNS History

11 records (4 active, 7 former)

20162017201820192020202120222023202420252026A104.21.15.176172.67.163.1492606:4700:3032::6815:fb02606:4700:3035::ac43:a395173.201.192.199173.201.193.19972.167.218.19297.74.135.11197.74.135.218CNAMEpop.secureserver.netpop.where.secureserver.net
●A104.21.15.1762026-02-15 → 2026-05-13 · 3 obs
○ 2016-04-08 01:08:48
● 2026-02-15 13:19:02
● 2026-05-13 21:29:40
●A172.67.163.1492026-02-15 → 2026-05-13 · 3 obs
○ 2016-04-08 01:08:48
● 2026-02-15 13:19:02
● 2026-05-13 21:29:40
○A173.201.192.1992015-06-18 → 2016-04-08 · 4 obs
● 2015-06-18 15:57:46
● 2016-04-08 01:08:48
○ 2026-02-15 13:19:02
○ 2026-05-13 21:29:40
○A173.201.193.1992015-06-18 → 2015-06-18 · 3 obs
● 2015-06-18 15:57:46
○ 2026-02-15 13:19:02
○ 2026-05-13 21:29:40
●A2606:4700:3032::6815:fb02026-02-15 → 2026-05-13 · 3 obs
○ 2016-04-08 01:08:48
● 2026-02-15 13:19:02
● 2026-05-13 21:29:40
●A2606:4700:3035::ac43:a3952026-02-15 → 2026-05-13 · 3 obs
○ 2016-04-08 01:08:48
● 2026-02-15 13:19:02
● 2026-05-13 21:29:40
○A72.167.218.1922015-06-18 → 2015-10-31 · 4 obs
● 2015-06-18 15:57:46
● 2015-10-31 08:27:02
○ 2016-01-18 07:11:00
○ 2026-05-13 21:29:40
○A97.74.135.1112015-06-18 → 2016-01-18 · 4 obs
● 2015-06-18 15:57:46
● 2016-01-18 07:11:00
○ 2016-04-08 01:08:48
○ 2026-05-13 21:29:40
○A97.74.135.2182015-06-18 → 2015-06-18 · 3 obs
● 2015-06-18 15:57:46
○ 2026-02-15 13:19:02
○ 2026-05-13 21:29:40
○CNAMEpop.secureserver.net2015-06-18 → 2026-02-15 · 4 obs
● 2015-06-18 15:57:46
● 2026-02-15 20:46:42
○ 2026-02-19 11:27:30
○ 2026-05-13 21:29:40
○CNAMEpop.where.secureserver.net2015-10-31 → 2026-02-15 · 5 obs
○ 2015-06-18 15:57:46
● 2015-10-31 08:27:02
● 2026-02-15 20:46:42
○ 2026-02-19 11:27:30
○ 2026-05-13 21:29:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
co2k.comgraham.ns.cloudflare.com, nena.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.171

NS records: graham.ns.cloudflare.com, nena.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for co2k.com (unsigned zone)

⏱️ Timing

Total: 265ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.163.149, 104.21.15.176
AAAA22606:4700:3035::ac43:a395, 2606:4700:3032::6815:fb0
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (graham.ns.cloudflare.com, graham.ns.cloudflare.com, graham.ns.cloudflare.com...)

Analysis

IP Addresses

mail.co2k.com resolves to four IPs: 2606:4700:3032::6815:fb0, 2606:4700:3035::ac43:a395, 104.21.15.176 and 172.67.163.149.

Other host names such as images.tuscany-villas.it, rempelbros.com, descenders.techylist.com, citebiotech.com and poblano.com.mx share IP numbers with mail.co2k.com.