mail.col.do - robtex.com

mail.col.do

DNSSEC⚠️ Not signed
A2606:4700:3035::6815:1c1d🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:aa36🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.28.29Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.170.54🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.28.29, 172.67.170.54
IPv6 hints2606:4700:3035::6815:1c1d, 2606:4700:3035::ac43:aa36
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=40, name=cloudflare-ech.com

col.do

DNSSEC⚠️ Not signed
A2606:4700:3035::6815:1c1d🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:aa36🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.28.29Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.170.54🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSlana.ns.cloudflare.com ⭐
NSmarvin.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.28.29, 172.67.170.54
IPv6 hints2606:4700:3035::6815:1c1d, 2606:4700:3035::ac43:aa36
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=40, name=cloudflare-ech.com
SOAlana.ns.cloudflare.comdns@cloudflare.com serial=2404166919

MX for

col.do

Same first word

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DNS History

6 records (4 active, 2 former)

A104.21.28.29172.67.170.542606:4700:3035::6815:1c1d2606:4700:3035::ac43:aa3677.237.247.12484.46.249.73
●A104.21.28.292026-05-15 → 2026-05-15 · 2 obs
○ 2026-05-06 07:33:10
● 2026-05-15 02:54:44
●A172.67.170.542026-05-15 → 2026-05-15 · 2 obs
○ 2026-05-06 07:33:10
● 2026-05-15 02:54:44
●A2606:4700:3035::6815:1c1d2026-05-15 → 2026-05-15 · 2 obs
○ 2026-05-06 07:33:10
● 2026-05-15 02:54:44
●A2606:4700:3035::ac43:aa362026-05-15 → 2026-05-15 · 2 obs
○ 2026-05-06 07:33:10
● 2026-05-15 02:54:44
○A77.237.247.1242026-02-20 → 2026-05-06 · 3 obs
● 2026-02-20 19:48:46
● 2026-05-06 07:33:10
○ 2026-05-15 02:54:44
○A84.46.249.732026-02-20 → 2026-05-15 · 2 obs
○ 2026-02-20 19:48:46
○ 2026-05-15 02:54:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dons5.nic.do, a.lactld.org, ns1.nic.do, ns2.nic.do...14 records
col.dolana.ns.cloudflare.com, marvin.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.44.251

NS records: lana.ns.cloudflare.com, marvin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for do (unsigned zone)

⏱️ Timing

Total: 183ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.170.54, 104.21.28.29
AAAA22606:4700:3035::ac43:aa36, 2606:4700:3035::6815:1c1d
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 14

In-bailiwick: 10 (ns5.nic.do, ns5.nic.do, ns1.nic.do...)

Out-of-bailiwick: 4 (a.lactld.org, a.lactld.org, phloem.uoregon.edu...)

Analysis

Mail Server Role

mail.col.do is the mail server for col.do.

IP Addresses

mail.col.do resolves to four IP numbers: 2606:4700:3035::6815:1c1d, 2606:4700:3035::ac43:aa36, 104.21.28.29 and 172.67.170.54.

other host names for instance babka-kondiiter.top, pandacloud.com, anyfilms.net, rouletteoasisx.com and trazimuth.shop share IP numbers with mail.col.do.