21studios.com - dns.ninja

`21studios.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:51ae^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3030::ac43:a329^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.81.174^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.163.41^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`amy.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a65^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c065^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`amy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2065^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`amy.ns.cloudflare.com`
		A	108.162.192.101^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amy.ns.cloudflare.com`
		A	172.64.32.101^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amy.ns.cloudflare.com`
		A	173.245.58.101^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amy.ns.cloudflare.com`
NS	`pranab.ns.cloudflare.com`
		A	2606:4700:58::a29f:2cc7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pranab.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3c7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`pranab.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23c7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`pranab.ns.cloudflare.com`
		A	108.162.195.199^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pranab.ns.cloudflare.com`
		A	162.159.44.199^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pranab.ns.cloudflare.com`
		A	172.64.35.199^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pranab.ns.cloudflare.com`
MX	`mx1.us.opalstack.com` ⭐
		A	108.62.123.121^{🇺🇸 LEASEWEB-US108.62.120.0/22 Leaseweb USA, Inc.}
MX	`mx2.us.opalstack.com` ⭐
		A	2605:fe80:2100:bf03:7::2^{🇺🇸 AS72032605:fe80::/32 Leaseweb USA, Inc. SFO-12 US}
			PTR	`mx2.us.opalstack.com`
		A	23.82.16.244^{🇺🇸 AS720323.82.16.0/21 Leaseweb USA, Inc.}
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.81.174, 172.67.163.41
		IPv6 hints	2606:4700:3030::6815:51ae, 2606:4700:3030::ac43:a329
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=123, name=cloudflare-ech.com
SOA	`amy.ns.cloudflare.com`dns@cloudflare.com serial=2407656388

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1785299222

Same first word

21studios.com

21studios.de

Similar names

12studios.com

DNS History

19 records (8 active, 11 former)

●NSamy.ns.cloudflare.com2026-07-12 → 2026-07-29 · 3 obs

○ 2017-03-27 17:31:50
● 2026-07-12 23:08:56
● 2026-07-29 04:56:56

○NSns01.cashparking.com2015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 09:55:00
○ 2015-12-08 13:06:54
○ 2026-07-29 04:56:56

○NSns1.wiredtree.com2016-07-15 → 2017-03-27 · 5 obs

○ 2016-03-18 07:32:36
● 2016-07-15 12:53:00
● 2017-03-27 17:31:50
○ 2026-07-12 23:08:56
○ 2026-07-29 04:56:56

○NSns2.wiredtree.com2016-07-15 → 2017-03-27 · 5 obs

○ 2016-03-18 07:32:36
● 2016-07-15 12:53:00
● 2017-03-27 17:31:50
○ 2026-07-12 23:08:56
○ 2026-07-29 04:56:56

○NSns45.domaincontrol.com2015-12-08 → 2016-03-18 · 5 obs

○ 2015-08-18 09:55:00
● 2015-12-08 13:06:54
● 2016-03-18 07:32:36
○ 2016-07-15 12:53:00
○ 2026-07-29 04:56:56

○NSns46.domaincontrol.com2015-12-08 → 2016-03-18 · 5 obs

○ 2015-08-18 09:55:00
● 2015-12-08 13:06:54
● 2016-03-18 07:32:36
○ 2016-07-15 12:53:00
○ 2026-07-29 04:56:56

●NSpranab.ns.cloudflare.com2026-07-12 → 2026-07-29 · 3 obs

○ 2017-03-27 17:31:50
● 2026-07-12 23:08:56
● 2026-07-29 04:56:56

○MXmail.21studios.com2016-07-15 → 2017-03-27 · 5 obs

○ 2016-03-18 07:32:36
● 2016-07-15 12:53:00
● 2017-03-27 17:31:50
○ 2026-07-12 23:08:56
○ 2026-07-29 04:56:56

○MXmailstore1.secureserver.net2015-08-18 → 2016-03-18 · 4 obs

● 2015-08-18 09:55:00
● 2016-03-18 07:32:36
○ 2016-07-15 12:53:00
○ 2026-07-29 04:56:56

●MXmx1.us.opalstack.com2026-07-12 → 2026-07-29 · 3 obs

○ 2017-03-27 17:31:50
● 2026-07-12 23:08:56
● 2026-07-29 04:56:56

●MXmx2.us.opalstack.com2026-07-12 → 2026-07-29 · 3 obs

○ 2017-03-27 17:31:50
● 2026-07-12 23:08:56
● 2026-07-29 04:56:56

○MXsmtp.secureserver.net2015-08-18 → 2016-03-18 · 4 obs

● 2015-08-18 09:55:00
● 2016-03-18 07:32:36
○ 2016-07-15 12:53:00
○ 2026-07-29 04:56:56

●A104.21.81.1742026-07-12 → 2026-07-29 · 3 obs

○ 2017-03-27 17:31:50
● 2026-07-12 23:08:56
● 2026-07-29 04:56:56

●A172.67.163.412026-07-12 → 2026-07-29 · 3 obs

○ 2017-03-27 17:31:50
● 2026-07-12 23:08:56
● 2026-07-29 04:56:56

○A184.168.221.962015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 09:55:00
○ 2015-12-08 13:06:54
○ 2026-07-29 04:56:56

○A208.79.236.1202016-07-15 → 2017-03-27 · 5 obs

○ 2016-03-18 07:32:36
● 2016-07-15 12:53:00
● 2017-03-27 17:31:50
○ 2026-07-12 23:08:56
○ 2026-07-29 04:56:56

●A2606:4700:3030::6815:51ae2026-07-12 → 2026-07-29 · 3 obs

○ 2017-03-27 17:31:50
● 2026-07-12 23:08:56
● 2026-07-29 04:56:56

●A2606:4700:3030::ac43:a3292026-07-12 → 2026-07-29 · 3 obs

○ 2017-03-27 17:31:50
● 2026-07-12 23:08:56
● 2026-07-29 04:56:56

○A50.63.202.52015-12-08 → 2016-03-18 · 5 obs

○ 2015-08-18 09:55:00
● 2015-12-08 13:06:54
● 2016-03-18 07:32:36
○ 2016-07-15 12:53:00
○ 2026-07-29 04:56:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, f.gtld-servers.net, e.gtld-servers.net, d.gtld-servers.net...	-
21studios.com	amy.ns.cloudflare.com, pranab.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.199

NS records: amy.ns.cloudflare.com, pranab.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21studios.com (unsigned zone)

⏱️ Timing

Total: 209ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.163.41, 104.21.81.174`
AAAA	2	`2606:4700:3030::ac43:a329, 2606:4700:3030::6815:51ae`
NS	2	`amy.ns.cloudflare.com, pranab.ns.cloudflare.com`
MX	2	`mx1.us.opalstack.com (pri: 10), mx2.us.opalstack.com (pri: 10)`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`amy.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (amy.ns.cloudflare.com, amy.ns.cloudflare.com, amy.ns.cloudflare.com...)

Analysis

IP Addresses

21studios.com points to the four IP addresses 104.21.81.174, 172.67.163.41, 2606:4700:3030::6815:51ae and 2606:4700:3030::ac43:a329.

thedeveloper.page, www.cervejariacolonus.com.br, ne6n5d.lol plus two other host names have IP numbers in common with 21studios.com.

Name Servers

21studios.com uses two name servers for its delegation: amy.ns.cloudflare.com and pranab.ns.cloudflare.com.

The name server configuration of 21studios.com is shared with other domains, for instance wstewartgreen.digital, vextatrans.com, fastotv.com and two others.

There is at least partial name server overlap between 21studios.com and other domains — fbox.gd, receitassupreme.com.br, pneusmobiles.be and two more among them.

These name servers frequently co-occur with the name servers byron.ns.cloudflare.com and linda.ns.cloudflare.com.

Hosts with 6 IP addresses each:

Hostname amy.ns.cloudflare.com directs to 108.162.192.101, 172.64.32.101 and 173.245.58.101 along with 3 other IP addresses.

Hostname pranab.ns.cloudflare.com directs to 108.162.195.199, 162.159.44.199 and 172.64.35.199 along with 3 other IP addresses.

Mail Servers

21studios.com uses two mail servers, mx1.us.opalstack.com and mx2.us.opalstack.com.

The mail server setup of 21studios.com matches that of other domains such as rollerskatedetroit.com, next.zinstall.com, ucpco.com and two others.

21studios.com and other domains — fullcirclebioconversion.com for instance — share at least some mail servers.

Host names pointing to two IP addresses:

mx2.us.opalstack.com directs traffic to 23.82.16.244 and 2605:fe80:2100:bf03:7::2.

Host names resolving to a single IP address:

mx1.us.opalstack.com has the IP address 108.62.123.121.