stdj.scienceandtechnology.com.vn - robtex.com

stdj.scienceandtechnology.com.vn

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:9128🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:477c🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.71.124Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.145.40🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.71.124, 172.67.145.40
IPv6 hints2606:4700:3030::ac43:9128, 2606:4700:3035::6815:477c
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=169, name=cloudflare-ech.com

scienceandtechnology.com.vn

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:9128🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:477c🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.71.124Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.145.40🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSapollo.ns.cloudflare.com ⭐
NSlady.ns.cloudflare.com
TXTgoogle-site-verification=02p802hJN_d00-lkQxgR2PYZEne6zMb9Qahn4TWMJ6w
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.71.124, 172.67.145.40
IPv6 hints2606:4700:3030::ac43:9128, 2606:4700:3035::6815:477c
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=169, name=cloudflare-ech.com
SOAapollo.ns.cloudflare.comdns@cloudflare.com serial=2402289356

Same first word

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DNS History

5 records (4 active, 1 former)

A104.21.71.124172.67.145.402606:4700:3030::ac43:91282606:4700:3035::6815:477cCNAMEsci.proxies.scienceandtechnology.com.vn
●A104.21.71.1242026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 08:06:20
● 2026-05-13 01:16:40
●A172.67.145.402026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 08:06:20
● 2026-05-13 01:16:40
●A2606:4700:3030::ac43:91282026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 08:06:20
● 2026-05-13 01:16:40
●A2606:4700:3035::6815:477c2026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 08:06:20
● 2026-05-13 01:16:40
○CNAMEsci.proxies.scienceandtechnology.com.vn2026-02-18 → 2026-02-19 · 4 obs
● 2026-02-18 11:44:32
● 2026-02-19 15:30:38
○ 2026-05-01 08:06:20
○ 2026-05-13 01:16:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vnc.dns-servers.vn, a.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn...-
scienceandtechnology.com.vnlady.ns.cloudflare.com, apollo.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.127

NS records: lady.ns.cloudflare.com, apollo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for scienceandtechnology.com.vn (unsigned zone)

⏱️ Timing

Total: 1212ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.145.40, 104.21.71.124
AAAA22606:4700:3035::6815:477c, 2606:4700:3030::ac43:9128
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

Four IP numbers are pointed to by stdj.scienceandtechnology.com.vn: 2606:4700:3030::ac43:9128, 2606:4700:3035::6815:477c, 104.21.71.124 and 172.67.145.40.

other host names including nn88.work, www.evopmncakdrrg.site, scienceandtechnology.com.vn, pouynmbt.click and ancianatosanmiguel.com share IP numbers with stdj.scienceandtechnology.com.vn.