mail.sterlingmark.com - robtex.com

mail.sterlingmark.com

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:1e8a🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:acf7🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.30.138Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.172.247🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.30.138, 172.67.172.247
IPv6 hints2606:4700:3034::6815:1e8a, 2606:4700:3034::ac43:acf7
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=184, name=cloudflare-ech.com

sterlingmark.com

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:1e8a🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:acf7🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.30.138Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.172.247🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSkelly.ns.cloudflare.com ⭐
NStrace.ns.cloudflare.com
MXsterlingmark-com.mail.protection.outlook.com ⭐
TXTMS=ms15800273
TXTMS=ms43375309
TXTbrevo-code:71c58bafe695ae7d00988310e3659a30
TXTv=spf1 include:spf.protection.outlook.com include:spf.brevo.com -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.30.138, 172.67.172.247
IPv6 hints2606:4700:3034::6815:1e8a, 2606:4700:3034::ac43:acf7
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=184, name=cloudflare-ech.com
SOAkelly.ns.cloudflare.comdns@cloudflare.com serial=2401029060

Previously MX for

sterlingmark.com

Same first word

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DNS History

8 records (4 active, 4 former)

20162017201820192020202120222023202420252026NSns100.webnic.ccns101.webnic.ccA104.21.30.138172.67.172.2472606:4700:3034::6815:1e8a2606:4700:3034::ac43:acf714.102.147.7398.126.6.83
○NSns100.webnic.cc2016-08-07 → 2016-08-07 · 2 obs
● 2016-08-07 20:55:10
○ 2026-04-11 23:07:48
○NSns101.webnic.cc2016-08-07 → 2016-08-07 · 2 obs
● 2016-08-07 20:55:10
○ 2026-04-11 23:07:48
●A104.21.30.1382026-04-11 → 2026-04-11 · 2 obs
○ 2016-08-07 20:55:10
● 2026-04-11 23:07:48
○A14.102.147.732015-08-19 → 2016-03-22 · 4 obs
● 2015-08-19 02:15:30
● 2016-03-22 01:58:56
○ 2016-08-07 20:55:10
○ 2026-04-11 23:07:48
●A172.67.172.2472026-04-11 → 2026-04-11 · 2 obs
○ 2016-08-07 20:55:10
● 2026-04-11 23:07:48
●A2606:4700:3034::6815:1e8a2026-04-11 → 2026-04-11 · 2 obs
○ 2016-08-07 20:55:10
● 2026-04-11 23:07:48
●A2606:4700:3034::ac43:acf72026-04-11 → 2026-04-11 · 2 obs
○ 2016-08-07 20:55:10
● 2026-04-11 23:07:48
○A98.126.6.832016-08-07 → 2016-08-07 · 3 obs
○ 2016-03-22 01:58:56
● 2016-08-07 20:55:10
○ 2026-04-11 23:07:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
sterlingmark.comkelly.ns.cloudflare.com, trace.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.91

NS records: kelly.ns.cloudflare.com, trace.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sterlingmark.com (unsigned zone)

⏱️ Timing

Total: 76ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.172.247, 104.21.30.138
AAAA22606:4700:3034::6815:1e8a, 2606:4700:3034::ac43:acf7
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.sterlingmark.com points to four IP numbers: 2606:4700:3034::6815:1e8a, 2606:4700:3034::ac43:acf7, 104.21.30.138 and 172.67.172.247.

Other host names, for instance redshutter.ca, arlingtonheightsdepressionbipolarsupport.com, 264b1456bb1a.dungeonmaster.blog, clouddigitalvault.sbs and restaurantracer.net share IP numbers with mail.sterlingmark.com.