mailserver.bighuw.com - robtex.com

mailserver.bighuw.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:c406🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:151d🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.21.29Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.196.6🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.21.29, 172.67.196.6
IPv6 hints2606:4700:3032::ac43:c406, 2606:4700:3036::6815:151d
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=102, name=cloudflare-ech.com

bighuw.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:c406🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:151d🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.21.29Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.196.6🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSchloe.ns.cloudflare.com ⭐
NSdonald.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.21.29, 172.67.196.6
IPv6 hints2606:4700:3032::ac43:c406, 2606:4700:3036::6815:151d
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=51, name=cloudflare-ech.com
SOAchloe.ns.cloudflare.comdns@cloudflare.com serial=2408931436

Previously MX for

bighuw.com

Same first word

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servermail.workers.dev
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servmailer.com
servermail.sakura.ne.jp
servermail.de
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DNS History

7 records (4 active, 3 former)

20162017201820192020202120222023202420252026A104.21.21.29172.67.196.62606:4700:3032::ac43:c4062606:4700:3036::6815:151d213.171.216.1142606:4700:3034::6815:151d2606:4700:3037::ac43:c406
●A104.21.21.292026-03-26 → 2026-07-31 · 3 obs
○ 2016-06-19 20:57:24
● 2026-03-26 23:52:16
● 2026-07-31 09:13:36
●A172.67.196.62026-03-26 → 2026-07-31 · 3 obs
○ 2016-06-19 20:57:24
● 2026-03-26 23:52:16
● 2026-07-31 09:13:36
○A213.171.216.1142015-07-11 → 2016-06-19 · 4 obs
● 2015-07-11 04:41:06
● 2016-06-19 20:57:24
○ 2026-03-26 23:52:16
○ 2026-07-31 09:13:36
●A2606:4700:3032::ac43:c4062026-06-24 → 2026-07-31 · 3 obs
○ 2026-06-10 02:42:50
● 2026-06-24 22:37:12
● 2026-07-31 09:13:36
○A2606:4700:3034::6815:151d2026-03-26 → 2026-06-10 · 5 obs
○ 2016-06-19 20:57:24
● 2026-03-26 23:52:16
● 2026-06-10 02:42:50
○ 2026-06-24 22:37:12
○ 2026-07-31 09:13:36
●A2606:4700:3036::6815:151d2026-06-24 → 2026-07-31 · 3 obs
○ 2026-06-10 02:42:50
● 2026-06-24 22:37:12
● 2026-07-31 09:13:36
○A2606:4700:3037::ac43:c4062026-03-26 → 2026-06-10 · 5 obs
○ 2016-06-19 20:57:24
● 2026-03-26 23:52:16
● 2026-06-10 02:42:50
○ 2026-06-24 22:37:12
○ 2026-07-31 09:13:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
bighuw.comchloe.ns.cloudflare.com, donald.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.85

NS records: chloe.ns.cloudflare.com, donald.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bighuw.com (unsigned zone)

⏱️ Timing

Total: 162ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.21.29, 172.67.196.6
AAAA22606:4700:3032::ac43:c406, 2606:4700:3036::6815:151d
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mailserver.bighuw.com points to the four IP addresses 104.21.21.29, 172.67.196.6, 2606:4700:3032::ac43:c406 and 2606:4700:3036::6815:151d.

Two other host names, along with effipersonal.com, campanhas.tecweb21.com and ucjav.com, also share IP numbers with mailserver.bighuw.com.