`devstudio.io.vn`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:b6c8^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:12ad^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.18.173^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.182.200^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`melissa.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ac7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melissa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0c7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`melissa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20c7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`melissa.ns.cloudflare.com`
		A	108.162.192.199^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melissa.ns.cloudflare.com`
		A	172.64.32.199^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melissa.ns.cloudflare.com`
		A	173.245.58.199^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melissa.ns.cloudflare.com`
NS	`vick.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bf4^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vick.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1f4^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vick.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21f4^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vick.ns.cloudflare.com`
		A	108.162.193.244^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vick.ns.cloudflare.com`
		A	172.64.33.244^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vick.ns.cloudflare.com`
		A	173.245.59.244^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vick.ns.cloudflare.com`
MX	`route2.mx.cloudflare.net` ⭐
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
MX	`route3.mx.cloudflare.net`⁽⁸⁴⁾
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
MX	`route1.mx.cloudflare.net`⁽¹⁰⁰⁾
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
TXT	`google-site-verification=5Jm7BJ0gTS73oSHydec5jWyVAqcf7BkyO1G17huMd4s`
TXT	`google-site-verification=6R3v80p-WO_Xll_pOkhQCB41k9MhxLOwk_uANqyMJDg`
TXT	`google-site-verification=wCE93FLpCGPdOflHEbFwZX3f3pFztK1DC8h3jJCTGNo`
TXT	`tino-platform-site-verification=ffe4ea2bcfb8125c4ff3c37b2bc9d82d0cac079bd6830...`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.18.173, 172.67.182.200
		IPv6 hints	2606:4700:3032::ac43:b6c8, 2606:4700:3033::6815:12ad
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=120, name=cloudflare-ech.com
SOA	`melissa.ns.cloudflare.com`dns@cloudflare.com serial=2408388434

`io.vn`

	DNSSEC	⚠️ Not signed
	NS	`dns-master.vnnic.vn` ⭐
	NS	`a.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`b.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`c.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`d.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`e.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`f.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`g.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`h.dns-servers.vn` ⚠️ Not in parent delegation
	SOA	`dns-master.vnnic.vn`postmaster@vnnic.vn serial=2023659280

rank #12147 globally
rank #15 in the tld

io.vn

Theio.vndomain is a second-level country code domain extension for Vietnam. It is administered by the Vietnam Internet Network Information Center (VNNIC) and is designed for digital technology applications, platforms, and online services.

Key facts

Owner / operator: Vietnam Internet Network Information Center (VNNIC)
TLD:.vn— Vietnam
Primary purpose: Domain extension for digital technology applications, platforms, and online services
Status: active

History

Year	Event
2021	The Ministry of Information and Communications issued Circular 21/2021/TT-BTTTT, establishing the new`.io.vn`domain extension.
2022	Circular 21/2021/TT-BTTTT took effect, officially adding`.io.vn`to the national domain name plan.
2023	VNNIC officially opened public registration for`.io.vn`domain names.

Subdomains

njoe.devstudio.io.vn

Same first word

devstudio.ro

devstudio.online

devstudio.lt

devstudio.com.ve

devstudio.de

devstudio.ai

devstudio.eu

devstudio.it

devstudio.net

devstudio.nl

devstudio.org

devstudio.io.vn

devstudio.co.uk

devstudio.kz

Similar names

studvideo.com

studiodev.co

studiodev.pl

stvdiodue.com

edvstudio.org

studiodev.net

studiodev.com

estudiodv.com.ar

stvdiodue.com.cn

studiodev.com.br

studiodev.xyz

DNS History

14 records (9 active, 5 former)

●NSmelissa.ns.cloudflare.com2026-06-02 → 2026-07-25 · 2 obs

● 2026-06-02 08:40:06
● 2026-07-25 12:08:04

●NSvick.ns.cloudflare.com2026-06-02 → 2026-07-25 · 2 obs

● 2026-06-02 08:40:06
● 2026-07-25 12:08:04

●MXroute1.mx.cloudflare.net2026-06-02 → 2026-07-25 · 2 obs

● 2026-06-02 08:40:06
● 2026-07-25 12:08:04

●MXroute2.mx.cloudflare.net2026-06-02 → 2026-07-25 · 2 obs

● 2026-06-02 08:40:06
● 2026-07-25 12:08:04

●MXroute3.mx.cloudflare.net2026-06-02 → 2026-07-25 · 2 obs

● 2026-06-02 08:40:06
● 2026-07-25 12:08:04

●A104.21.18.1732026-06-02 → 2026-07-25 · 6 obs

● 2026-06-02 08:40:06
● 2026-06-17 07:44:30
○ 2026-06-20 09:42:44
● 2026-06-27 13:35:32
○ 2026-07-25 05:07:00
● 2026-07-25 12:08:04

●A172.67.182.2002026-06-02 → 2026-07-25 · 6 obs

● 2026-06-02 08:40:06
● 2026-06-17 07:44:30
○ 2026-06-20 09:42:44
● 2026-06-27 13:35:32
○ 2026-07-25 05:07:00
● 2026-07-25 12:08:04

○A188.114.96.02026-06-20 → 2026-07-25 · 5 obs

○ 2026-06-17 07:44:30
● 2026-06-20 09:42:44
○ 2026-06-27 13:35:32
● 2026-07-25 05:07:00
○ 2026-07-25 12:08:04

○A188.114.97.02026-06-20 → 2026-07-25 · 5 obs

○ 2026-06-17 07:44:30
● 2026-06-20 09:42:44
○ 2026-06-27 13:35:32
● 2026-07-25 05:07:00
○ 2026-07-25 12:08:04

●A2606:4700:3032::ac43:b6c82026-06-02 → 2026-07-25 · 6 obs

● 2026-06-02 08:40:06
● 2026-06-17 07:44:30
○ 2026-06-20 09:42:44
● 2026-06-27 13:35:32
○ 2026-07-25 05:07:00
● 2026-07-25 12:08:04

●A2606:4700:3033::6815:12ad2026-07-25 → 2026-07-25 · 2 obs

○ 2026-07-25 05:07:00
● 2026-07-25 12:08:04

○A2606:4700:3036::6815:12ad2026-06-02 → 2026-06-27 · 6 obs

● 2026-06-02 08:40:06
● 2026-06-17 07:44:30
○ 2026-06-20 09:42:44
● 2026-06-27 13:35:32
○ 2026-07-25 05:07:00
○ 2026-07-25 12:08:04

○A2a06:98c1:3120::2026-06-20 → 2026-07-25 · 5 obs

○ 2026-06-17 07:44:30
● 2026-06-20 09:42:44
○ 2026-06-27 13:35:32
● 2026-07-25 05:07:00
○ 2026-07-25 12:08:04

○A2a06:98c1:3121::2026-06-20 → 2026-07-25 · 5 obs

○ 2026-06-17 07:44:30
● 2026-06-20 09:42:44
○ 2026-06-27 13:35:32
● 2026-07-25 05:07:00
○ 2026-07-25 12:08:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	h.dns-servers.vn, a.dns-servers.vn, f.dns-servers.vn, c.dns-servers.vn...	-
devstudio.io.vn	melissa.ns.cloudflare.com, vick.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.199

NS records: melissa.ns.cloudflare.com, vick.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for devstudio.io.vn (unsigned zone)

⏱️ Timing

Total: 1256ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.182.200, 104.21.18.173`
AAAA	2	`2606:4700:3032::ac43:b6c8, 2606:4700:3033::6815:12ad`
NS	2	`melissa.ns.cloudflare.com, vick.ns.cloudflare.com`
MX	3	`route1.mx.cloudflare.net (pri: 100), route2.mx.cloudflare.net (pri: 64)...`
TXT	5	`google-site-verification=5Jm7BJ0gTS73oSH, google-site-verification=6R3v80p-WO_Xll_...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`melissa.ns.cloudflare.com dns.cloudflare`

Analysis

Hierarchy

devstudio.io.vn is the parent zone for njoe.devstudio.io.vn.

IP Addresses

devstudio.io.vn has four IP addresses: 104.21.18.173, 172.67.182.200, 2606:4700:3032::ac43:b6c8 and 2606:4700:3033::6815:12ad.

Additional host names — aleksmarket.ru, u888inc.com, southeasternpath.com and two others — share IP numbers with devstudio.io.vn.

Name Servers

devstudio.io.vn uses two name servers for its delegation: melissa.ns.cloudflare.com and vick.ns.cloudflare.com.

devstudio.io.vn shares its name server setup with other domains, including jepl.in, oregoncitizens.com, braumandl.com and two others.

devstudio.io.vn partially shares its NS delegation with several other domains, including diamond7.buzz, irishhealthoils.ie, workee.net and two others.

The name servers devin.ns.cloudflare.com, laura.ns.cloudflare.com, harmony.ns.cloudflare.com and marty.ns.cloudflare.com are often found in use alongside these name servers.

Host names with 6 IP numbers:

Hostname melissa.ns.cloudflare.com directs to 108.162.192.199, 172.64.32.199 and 173.245.58.199 along with 3 other IP addresses.

Hostname vick.ns.cloudflare.com directs to 108.162.193.244, 172.64.33.244 and 173.245.59.244 along with 3 other IP addresses.

Mail Servers

devstudio.io.vn uses three mail servers — route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

devstudio.io.vn shares mail servers — at least in part — with other domains, including novnc.cc, 4qw.de, onestopshophomerepairs.com and two others.

Host names with 6 IP numbers:

Hostname route1.mx.cloudflare.net directs to 162.159.205.11, 162.159.205.12 and 162.159.205.13 along with 3 other IP addresses.

Hostname route2.mx.cloudflare.net directs to 162.159.205.17, 162.159.205.18 and 162.159.205.19 along with 3 other IP addresses.

Hostname route3.mx.cloudflare.net directs to 162.159.205.23, 162.159.205.24 and 162.159.205.25 along with 3 other IP addresses.

devstudio.io.vn - robtex.com

devstudio.io.vn

io.vn

io.vn

Key facts

History

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`devstudio.io.vn`

`io.vn`