api.dth.edu.vn - robtex.com
api.dth.edu.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::6815:241f🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3032::ac43:b855🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.36.31Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.184.85🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.36.31, 172.67.184.85 | ||||||
| IPv6 hints | 2606:4700:3031::6815:241f, 2606:4700:3032::ac43:b855 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=184, name=cloudflare-ech.com | ||||||
dth.edu.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::6815:241f🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3032::ac43:b855🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.36.31Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.184.85🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | cullen.ns.cloudflare.com ⭐ | ||||||
| NS | karsyn.ns.cloudflare.com | ||||||
| MX | _dc-mx.327072f794f4.dth.edu.vn ⭐ | ||||||
| TXT | v=spf1 a mx ~all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.36.31, 172.67.184.85 | ||||||
| IPv6 hints | 2606:4700:3031::6815:241f, 2606:4700:3032::ac43:b855 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=184, name=cloudflare-ech.com | ||||||
| SOA | cullen.ns.cloudflare.comdns@cloudflare.com serial=2410521646 | ||||||
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
●A104.21.36.312026-05-01 → 2026-08-06 · 2 obs
● 2026-05-01 01:06:08
● 2026-08-06 21:12:58
● 2026-08-06 21:12:58
●A172.67.184.852026-05-01 → 2026-08-06 · 2 obs
● 2026-05-01 01:06:08
● 2026-08-06 21:12:58
● 2026-08-06 21:12:58
●A2606:4700:3031::6815:241f2026-06-26 → 2026-08-06 · 3 obs
○ 2026-06-01 13:28:20
● 2026-06-26 23:39:18
● 2026-08-06 21:12:58
● 2026-06-26 23:39:18
● 2026-08-06 21:12:58
●A2606:4700:3032::ac43:b8552026-05-01 → 2026-08-06 · 2 obs
● 2026-05-01 01:06:08
● 2026-08-06 21:12:58
● 2026-08-06 21:12:58
○A2606:4700:3037::6815:241f2026-05-01 → 2026-06-01 · 4 obs
● 2026-05-01 01:06:08
● 2026-06-01 13:28:20
○ 2026-06-26 23:39:18
○ 2026-08-06 21:12:58
● 2026-06-01 13:28:20
○ 2026-06-26 23:39:18
○ 2026-08-06 21:12:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| dth.edu.vn | karsyn.ns.cloudflare.com, cullen.ns.cloudflare.com | - |
✅ Authoritative Response
Server:162.159.38.194
NS records: karsyn.ns.cloudflare.com, cullen.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dth.edu.vn (unsigned zone)
⏱️ Timing
Total: 601ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.36.31, 172.67.184.85 |
| AAAA | 2 | 2606:4700:3031::6815:241f, 2606:4700:3032::ac43:b855 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
Analysis
IP Addresses
api.dth.edu.vn resolves to four IP addresses: 104.21.36.31, 172.67.184.85, 2606:4700:3031::6815:241f and 2606:4700:3032::ac43:b855.
Two other host names, along with bos.arabdecision.org, gaul208slot.club and spincoregaming.co.uk, also share IP numbers with api.dth.edu.vn.