server.stmarks.ac.th - robtex.com

server.stmarks.ac.th

DNSSEC⚠️ Not signed
A2606:4700:3035::ac43:a3f5🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:fcb🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.15.203Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.163.245🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.15.203, 172.67.163.245
IPv6 hints2606:4700:3035::ac43:a3f5, 2606:4700:3037::6815:fcb
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=25, name=cloudflare-ech.com

stmarks.ac.th

DNSSEC⚠️ Not signed
A2606:4700:3035::ac43:a3f5🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:fcb🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.15.203Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.163.245🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSemma.ns.cloudflare.com ⭐
NSray.ns.cloudflare.com
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(5)
MXalt2.aspmx.l.google.com(5)
MXalt3.aspmx.l.google.com(10)
MXalt4.aspmx.l.google.com(10)
TXTMS=ms21477584
TXTgoogle-site-verification=6072egxI8hdlMnN-E85Mk4KE-9Ott7YeqJgZjh5OPdA
TXTgoogle-site-verification=JWySZ5PkPYvKZfAnDuJXuI-MUxs7eEIi7kFPd5t036U
TXTmailerlite-domain-verification=df58982ac16f842e0f017310e59a965f58528549
TXTv=spf1 include:spf.mailjet.com ip4:203.151.23.22 +a +mx +ip4:103.4.218.28 +ip...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.15.203, 172.67.163.245
IPv6 hints2606:4700:3035::ac43:a3f5, 2606:4700:3037::6815:fcb
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=248, name=cloudflare-ech.com
SOAemma.ns.cloudflare.comdns@cloudflare.com serial=2402039981
WOT: SAFE (50/100)
WOT: SAFE (27/100)

PTR for

22.23.151.203.in-addr.arpa

Same first word

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DNS History

4 records (4 active, 0 former)

A104.21.15.203172.67.163.2452606:4700:3035::ac43:a3f52606:4700:3037::6815:fcb
●A104.21.15.2032026-04-30 → 2026-05-12 · 2 obs
● 2026-04-30 00:24:50
● 2026-05-12 04:21:30
●A172.67.163.2452026-04-30 → 2026-05-12 · 2 obs
● 2026-04-30 00:24:50
● 2026-05-12 04:21:30
●A2606:4700:3035::ac43:a3f52026-04-30 → 2026-05-12 · 2 obs
● 2026-04-30 00:24:50
● 2026-05-12 04:21:30
●A2606:4700:3037::6815:fcb2026-04-30 → 2026-05-12 · 2 obs
● 2026-04-30 00:24:50
● 2026-05-12 04:21:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
thb.thains.co.th, a.thains.co.th, nn1.thains.co.th, ns.thnic.net...11 records
stmarks.ac.thray.ns.cloudflare.com, emma.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.138

NS records: ray.ns.cloudflare.com, emma.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stmarks.ac.th (unsigned zone)

⏱️ Timing

Total: 4428ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.15.203, 172.67.163.245
AAAA22606:4700:3037::6815:fcb, 2606:4700:3035::ac43:a3f5
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 11

In-bailiwick: 10 (nn1.thains.co.th, p.thains.co.th, c.thains.co.th...)

Out-of-bailiwick: 1 (ns.thnic.net)

Analysis

IP Addresses

server.stmarks.ac.th maps to four IP numbers: 2606:4700:3035::ac43:a3f5, 2606:4700:3037::6815:fcb, 104.21.15.203 and 172.67.163.245.

Other host names, for instance exedinstitute.com, www.bostontoastmasters.org.cdn.cloudflare.net, awup.net, challenge.ninja and thesafetyshow.com.au share IP numbers with server.stmarks.ac.th.