mail.sm4.com - robtex.com

mail.sm4.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:c6b5🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:3209🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.50.9Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.198.181🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.50.9, 172.67.198.181
IPv6 hints2606:4700:3032::ac43:c6b5, 2606:4700:3034::6815:3209
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=97, name=cloudflare-ech.com

sm4.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:c6b5🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:3209🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.50.9Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.198.181🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjack.ns.cloudflare.com ⭐
NSwally.ns.cloudflare.com
MXsm4-com.mail.protection.outlook.com ⭐
TXTv=spf1 ip4:50.207.83.194 ip4:71.172.32.44 include:spf.protection.outlook.com ...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.50.9, 172.67.198.181
IPv6 hints2606:4700:3032::ac43:c6b5, 2606:4700:3034::6815:3209
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=97, name=cloudflare-ech.com
SOAjack.ns.cloudflare.comdns@cloudflare.com serial=2401836543

PTR for

73.232.73.50.in-addr.arpa

Same first word

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DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026A104.21.50.9172.67.198.1812606:4700:3032::ac43:c6b52606:4700:3034::6815:320950.73.232.73
●A104.21.50.92026-02-16 → 2026-05-15 · 3 obs
○ 2016-05-02 10:48:14
● 2026-02-16 15:20:34
● 2026-05-15 11:47:00
●A172.67.198.1812026-02-16 → 2026-05-15 · 3 obs
○ 2016-05-02 10:48:14
● 2026-02-16 15:20:34
● 2026-05-15 11:47:00
●A2606:4700:3032::ac43:c6b52026-02-16 → 2026-05-15 · 3 obs
○ 2016-05-02 10:48:14
● 2026-02-16 15:20:34
● 2026-05-15 11:47:00
●A2606:4700:3034::6815:32092026-02-16 → 2026-05-15 · 3 obs
○ 2016-05-02 10:48:14
● 2026-02-16 15:20:34
● 2026-05-15 11:47:00
○A50.73.232.732015-08-13 → 2016-05-02 · 4 obs
● 2015-08-13 15:32:54
● 2016-05-02 10:48:14
○ 2026-02-16 15:20:34
○ 2026-05-15 11:47:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
sm4.comjack.ns.cloudflare.com, wally.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.239

NS records: jack.ns.cloudflare.com, wally.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sm4.com (unsigned zone)

⏱️ Timing

Total: 107ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.50.9, 172.67.198.181
AAAA22606:4700:3032::ac43:c6b5, 2606:4700:3034::6815:3209
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.sm4.com resolves to four IPs: 2606:4700:3032::ac43:c6b5, 2606:4700:3034::6815:3209, 104.21.50.9 and 172.67.198.181.

Other host names such as unisthub.digital, kj445.com, iyujili.top, zolininkas.lt and mellos-restaurant.com share IP numbers with mail.sm4.com.