`sieuthican.vn`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:b90a^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::6815:541a^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.84.26^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.185.10^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jakub.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c55^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jakub.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c355^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jakub.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2355^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jakub.ns.cloudflare.com`
		A	108.162.195.85^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jakub.ns.cloudflare.com`
		A	162.159.44.85^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jakub.ns.cloudflare.com`
		A	172.64.35.85^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jakub.ns.cloudflare.com`
NS	`kay.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a7d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kay.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c07d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kay.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:207d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kay.ns.cloudflare.com`
		A	108.162.192.125^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kay.ns.cloudflare.com`
		A	172.64.32.125^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kay.ns.cloudflare.com`
		A	173.245.58.125^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kay.ns.cloudflare.com`
MX	`mx.yandex.net` ⭐
		A	2a02:6b8::311^{🇷🇺 TELETECH2a02:6b8::/32 Yandex network}
			PTR	`mxfront.stable.qloud-b.yandex.net`
		A	77.88.21.249^{🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network}
			PTR	`mxfront.stable.qloud-b.yandex.net`
TXT	`v=spf1 redirect=_spf.yandex.net`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.84.26, 172.67.185.10
		IPv6 hints	2606:4700:3030::ac43:b90a, 2606:4700:3032::6815:541a
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=89, name=cloudflare-ech.com
SOA	`jakub.ns.cloudflare.com`dns@cloudflare.com serial=2406695050

`vn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`dns-master.vnnic.vn` ⭐
	NS	`a.dns-servers.vn`
	NS	`b.dns-servers.vn`
	NS	`c.dns-servers.vn`
	NS	`d.dns-servers.vn`
	NS	`e.dns-servers.vn`
	NS	`f.dns-servers.vn`
	NS	`g.dns-servers.vn`
	NS	`h.dns-servers.vn`
	SOA	`dns-master.vnnic.vn`postmaster@vnnic.vn serial=2031013424

Subdomains

pop.sieuthican.vn

ftp.sieuthican.vn

smtp.sieuthican.vn

Same first word

sieuthican.com

sieuthican.vn

Similar names

austinhice.com

chinasuite.com

DNS History

13 records (7 active, 6 former)

●NSjakub.ns.cloudflare.com2026-05-12 → 2026-07-19 · 2 obs

● 2026-05-12 13:00:06
● 2026-07-19 10:27:56

●NSkay.ns.cloudflare.com2026-05-12 → 2026-07-19 · 2 obs

● 2026-05-12 13:00:06
● 2026-07-19 10:27:56

●MXmx.yandex.net2026-05-12 → 2026-07-19 · 2 obs

● 2026-05-12 13:00:06
● 2026-07-19 10:27:56

●A104.21.84.262026-05-12 → 2026-07-19 · 5 obs

● 2026-05-12 13:00:06
● 2026-05-12 19:20:40
○ 2026-06-12 20:51:54
● 2026-07-02 09:50:32
● 2026-07-19 10:27:56

●A172.67.185.102026-05-12 → 2026-07-19 · 5 obs

● 2026-05-12 13:00:06
● 2026-05-12 19:20:40
○ 2026-06-12 20:51:54
● 2026-07-02 09:50:32
● 2026-07-19 10:27:56

○A188.114.96.02026-06-12 → 2026-06-12 · 4 obs

○ 2026-05-12 19:20:40
● 2026-06-12 20:51:54
○ 2026-07-02 09:50:32
○ 2026-07-19 10:27:56

○A188.114.97.02026-06-12 → 2026-06-12 · 4 obs

○ 2026-05-12 19:20:40
● 2026-06-12 20:51:54
○ 2026-07-02 09:50:32
○ 2026-07-19 10:27:56

●A2606:4700:3030::ac43:b90a2026-07-02 → 2026-07-19 · 3 obs

○ 2026-06-12 20:51:54
● 2026-07-02 09:50:32
● 2026-07-19 10:27:56

○A2606:4700:3031::ac43:b90a2026-05-12 → 2026-05-12 · 4 obs

● 2026-05-12 13:00:06
● 2026-05-12 19:20:40
○ 2026-06-12 20:51:54
○ 2026-07-19 10:27:56

●A2606:4700:3032::6815:541a2026-07-02 → 2026-07-19 · 3 obs

○ 2026-06-12 20:51:54
● 2026-07-02 09:50:32
● 2026-07-19 10:27:56

○A2606:4700:3037::6815:541a2026-05-12 → 2026-05-12 · 4 obs

● 2026-05-12 13:00:06
● 2026-05-12 19:20:40
○ 2026-06-12 20:51:54
○ 2026-07-19 10:27:56

○A2a06:98c1:3120::2026-06-12 → 2026-06-12 · 4 obs

○ 2026-05-12 19:20:40
● 2026-06-12 20:51:54
○ 2026-07-02 09:50:32
○ 2026-07-19 10:27:56

○A2a06:98c1:3121::2026-06-12 → 2026-06-12 · 4 obs

○ 2026-05-12 19:20:40
● 2026-06-12 20:51:54
○ 2026-07-02 09:50:32
○ 2026-07-19 10:27:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	16 records
sieuthican.vn	kay.ns.cloudflare.com, jakub.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.44.85

NS records: kay.ns.cloudflare.com, jakub.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sieuthican.vn (unsigned zone)

⏱️ Timing

Total: 964ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.185.10, 104.21.84.26`
AAAA	2	`2606:4700:3032::6815:541a, 2606:4700:3030::ac43:b90a`
NS	2	`jakub.ns.cloudflare.com, kay.ns.cloudflare.com`
MX	1	`mx.yandex.net (pri: 10)`
TXT	1	`v=spf1 redirect=_spf.yandex.net`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jakub.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 16

In-bailiwick: 16 (a.dns-servers.vn, a.dns-servers.vn, b.dns-servers.vn...)

Analysis

Hierarchy

sieuthican.vn is the parent domain of pop.sieuthican.vn, ftp.sieuthican.vn and smtp.sieuthican.vn.

IP Addresses

sieuthican.vn resolves to four IP addresses: 104.21.84.26, 172.67.185.10, 2606:4700:3030::ac43:b90a and 2606:4700:3032::6815:541a.

Additional host names — knust-alumni.org, www.theforumsa.co.za, mail.sentralhost.com and two others — share IP numbers with sieuthican.vn.

Name Servers

DNS delegation for sieuthican.vn points to two name servers: jakub.ns.cloudflare.com and kay.ns.cloudflare.com.

sieuthican.vn shares its name server setup with other domains, including gobitgame.net, tiendatsolar.com, aicuce.ro and two others.

sieuthican.vn shares at least some of its name servers with other domains, including sonversiyon.com, trackri.com, diaoshi.org and two others.

These name servers are frequently paired with the name servers hattie.ns.cloudflare.com and trevor.ns.cloudflare.com.

Host names with 6 IP numbers:

jakub.ns.cloudflare.com has IP addresses 108.162.195.85, 162.159.44.85 and 172.64.35.85, plus 3 other.

kay.ns.cloudflare.com has IP addresses 108.162.192.125, 172.64.32.125 and 173.245.58.125, plus 3 other.

Mail Servers

sieuthican.vn has one mail server: mx.yandex.net.

sieuthican.vn shares the same mail server setup as other domains, including teambe.ru, xn----jtbajcvccgefrefdqku.xn--p1ai, mikhey.ru and two others.

sieuthican.vn shares mail servers — at least in part — with other domains, including spetrov.ru, 7v8.ru, sahilrai.in and two others.

mx.yandex.net points to two IP addresses: 77.88.21.249 and 2a02:6b8::311.

sieuthican.vn - robtex.com

sieuthican.vn

vn

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`sieuthican.vn`

`vn`