mail.selfhow.com - robtex.com

mail.selfhow.com

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:acf3🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:1e86🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.30.134Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.172.243🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.30.134, 172.67.172.243
IPv6 hints2606:4700:3033::ac43:acf3, 2606:4700:3036::6815:1e86
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=35, name=cloudflare-ech.com

selfhow.com

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:acf3🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:1e86🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.30.134Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.172.243🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSfelipe.ns.cloudflare.com ⭐
NSnancy.ns.cloudflare.com
TXTgoogle-site-verification=bn2kGpyjFN837vhvExxfTp6yEkQqFGiUeID6upwQpOA
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.30.134, 172.67.172.243
IPv6 hints2606:4700:3033::ac43:acf3, 2606:4700:3036::6815:1e86
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=35, name=cloudflare-ech.com
SOAfelipe.ns.cloudflare.comdns@cloudflare.com serial=2409646891

Previously MX for

selfhow.com

Same first word

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mail.ie
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mail.uy
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DNS History

6 records (4 active, 2 former)

A104.21.30.134172.67.172.2432606:4700:3033::ac43:acf32606:4700:3036::6815:1e862606:4700:3030::6815:1e862606:4700:3034::ac43:acf3
●A104.21.30.1342026-06-30 → 2026-07-26 · 2 obs
● 2026-06-30 02:41:54
● 2026-07-26 03:25:10
●A172.67.172.2432026-06-30 → 2026-07-26 · 2 obs
● 2026-06-30 02:41:54
● 2026-07-26 03:25:10
○A2606:4700:3030::6815:1e862026-06-30 → 2026-06-30 · 3 obs
● 2026-06-30 02:41:54
○ 2026-07-12 12:26:40
○ 2026-07-26 03:25:10
●A2606:4700:3033::ac43:acf32026-07-12 → 2026-07-26 · 3 obs
○ 2026-06-30 02:41:54
● 2026-07-12 12:26:40
● 2026-07-26 03:25:10
○A2606:4700:3034::ac43:acf32026-06-30 → 2026-06-30 · 3 obs
● 2026-06-30 02:41:54
○ 2026-07-12 12:26:40
○ 2026-07-26 03:25:10
●A2606:4700:3036::6815:1e862026-07-12 → 2026-07-26 · 3 obs
○ 2026-06-30 02:41:54
● 2026-07-12 12:26:40
● 2026-07-26 03:25:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comm.gtld-servers.net, h.gtld-servers.net, j.gtld-servers.net, b.gtld-servers.net...-
selfhow.comnancy.ns.cloudflare.com, felipe.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.84

NS records: nancy.ns.cloudflare.com, felipe.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for selfhow.com (unsigned zone)

⏱️ Timing

Total: 123ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.30.134, 172.67.172.243
AAAA22606:4700:3033::ac43:acf3, 2606:4700:3036::6815:1e86
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.selfhow.com points to the four IP addresses 104.21.30.134, 172.67.172.243, 2606:4700:3033::ac43:acf3 and 2606:4700:3036::6815:1e86.

www.globus2.com, xueer.net, bellinoportland.com and two other host names share IP numbers with mail.selfhow.com.