`extremezero.vn`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:9b34^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:5902^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.89.2^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.155.52^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`nora.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ad5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nora.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nora.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nora.ns.cloudflare.com`
		A	108.162.192.213^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nora.ns.cloudflare.com`
		A	172.64.32.213^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nora.ns.cloudflare.com`
		A	173.245.58.213^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nora.ns.cloudflare.com`
NS	`sage.ns.cloudflare.com`
		A	2606:4700:58::a29f:2cec^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sage.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3ec^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sage.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23ec^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sage.ns.cloudflare.com`
		A	108.162.195.236^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sage.ns.cloudflare.com`
		A	162.159.44.236^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sage.ns.cloudflare.com`
		A	172.64.35.236^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sage.ns.cloudflare.com`
MX	`mail.extremezero.vn` ⭐
		A	2606:4700:3032::ac43:9b34^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	2606:4700:3037::6815:5902^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	104.21.89.2^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.67.155.52^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
TXT	`v=spf1 a mx ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.89.2, 172.67.155.52
		IPv6 hints	2606:4700:3032::ac43:9b34, 2606:4700:3037::6815:5902
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=108, name=cloudflare-ech.com
SOA	`nora.ns.cloudflare.com`dns@cloudflare.com serial=2402993696

`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=2030768012

Subdomains

mail.extremezero.vn

main.extremezero.vn

Same first word

extremezero.vn

DNS History

13 records (7 active, 6 former)

●NSnora.ns.cloudflare.com2026-05-12 → 2026-05-13 · 3 obs

○ 2019-12-25 19:36:40
● 2026-05-12 08:29:14
● 2026-05-13 10:32:16

○NSns1.dotvndns.vn2019-12-25 → 2019-12-25 · 3 obs

● 2019-12-25 19:36:40
○ 2026-05-12 08:29:14
○ 2026-05-13 10:32:16

○NSns1.pavietnam.vn2019-12-25 → 2019-12-25 · 3 obs

● 2019-12-25 19:36:40
○ 2026-05-12 08:29:14
○ 2026-05-13 10:32:16

○NSns2.pavietnam.vn2019-12-25 → 2019-12-25 · 3 obs

● 2019-12-25 19:36:40
○ 2026-05-12 08:29:14
○ 2026-05-13 10:32:16

○NSnsbak.pavietnam.net2019-12-25 → 2019-12-25 · 3 obs

● 2019-12-25 19:36:40
○ 2026-05-12 08:29:14
○ 2026-05-13 10:32:16

●NSsage.ns.cloudflare.com2026-05-12 → 2026-05-13 · 3 obs

○ 2019-12-25 19:36:40
● 2026-05-12 08:29:14
● 2026-05-13 10:32:16

●MXmail.extremezero.vn2026-05-12 → 2026-05-13 · 3 obs

○ 2019-12-25 19:36:40
● 2026-05-12 08:29:14
● 2026-05-13 10:32:16

○MXmx.yandex.net2019-12-25 → 2019-12-25 · 3 obs

● 2019-12-25 19:36:40
○ 2026-05-12 08:29:14
○ 2026-05-13 10:32:16

●A104.21.89.22026-05-12 → 2026-05-13 · 3 obs

○ 2019-12-25 19:36:40
● 2026-05-12 08:29:14
● 2026-05-13 10:32:16

○A112.213.89.1052019-12-25 → 2019-12-25 · 3 obs

● 2019-12-25 19:36:40
○ 2026-05-12 08:29:14
○ 2026-05-13 10:32:16

●A172.67.155.522026-05-12 → 2026-05-13 · 3 obs

○ 2019-12-25 19:36:40
● 2026-05-12 08:29:14
● 2026-05-13 10:32:16

●A2606:4700:3032::ac43:9b342026-05-12 → 2026-05-13 · 3 obs

○ 2019-12-25 19:36:40
● 2026-05-12 08:29:14
● 2026-05-13 10:32:16

●A2606:4700:3037::6815:59022026-05-12 → 2026-05-13 · 3 obs

○ 2019-12-25 19:36:40
● 2026-05-12 08:29:14
● 2026-05-13 10:32:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
extremezero.vn	sage.ns.cloudflare.com, nora.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.213

NS records: sage.ns.cloudflare.com, nora.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for extremezero.vn (unsigned zone)

⏱️ Timing

Total: 1215ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.155.52, 104.21.89.2`
AAAA	2	`2606:4700:3037::6815:5902, 2606:4700:3032::ac43:9b34`
NS	2	`nora.ns.cloudflare.com, sage.ns.cloudflare.com`
MX	1	`mail.extremezero.vn (pri: 360)`
TXT	1	`v=spf1 a mx ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`nora.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

extremezero.vn is parent of mail.extremezero.vn and main.extremezero.vn.

IP Addresses

extremezero.vn points to four IP numbers: 2606:4700:3032::ac43:9b34, 2606:4700:3037::6815:5902, 104.21.89.2 and 172.67.155.52.

Other host names including sso.funcode.live, bravevoicesmagazine.org, tech2success.com, ranpurafarmcattery.co.uk and hzpc6.com share IP numbers with extremezero.vn.

Name Servers

extremezero.vn's delegation uses two name servers, nora.ns.cloudflare.com and sage.ns.cloudflare.com.

extremezero.vn shares the same name server setup as other domains, for example jdautoparts.com, dv6l1qsd.workers.dev, ridble.com, app-gala-games-play-1fnw3.com and frame-it.be.

extremezero.vn at least partially shares name servers with other domains, including 0577sy.cn, hamdardglobal.com, hionofrai.com.co, axiomhc.com and ucanintern.com.

these name servers are commonly used with blakely.ns.cloudflare.com, alexandra.ns.cloudflare.com, sima.ns.cloudflare.com and macy.ns.cloudflare.com.

Host names with six IP numbers:

nora.ns.cloudflare.com points to: 2606:4700:50::adf5:3ad5, 2803:f800:50::6ca2:c0d5, 2a06:98c1:50::ac40:20d5, 108.162.192.213, 172.64.32.213 and 173.245.58.213.

sage.ns.cloudflare.com points to: 2606:4700:58::a29f:2cec, 2803:f800:50::6ca2:c3ec, 2a06:98c1:50::ac40:23ec, 108.162.195.236, 162.159.44.236 and 172.64.35.236.

Mail Servers

extremezero.vn is handled by a single mail server, mail.extremezero.vn.

Host mail.extremezero.vn resolves to four IPs: 2606:4700:3032::ac43:9b34, 2606:4700:3037::6815:5902, 104.21.89.2 and 172.67.155.52.

extremezero.vn - robtex.com

extremezero.vn

vn

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`extremezero.vn`

`vn`