`ac21.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:4fea^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:95ed^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.79.234^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.149.237^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`keira.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26ce^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keira.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2ce^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`keira.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22ce^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`keira.ns.cloudflare.com`
		A	108.162.194.206^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keira.ns.cloudflare.com`
		A	162.159.38.206^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keira.ns.cloudflare.com`
		A	172.64.34.206^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keira.ns.cloudflare.com`
NS	`kyree.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ccf^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kyree.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3cf^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kyree.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23cf^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kyree.ns.cloudflare.com`
		A	108.162.195.207^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kyree.ns.cloudflare.com`
		A	162.159.44.207^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kyree.ns.cloudflare.com`
		A	172.64.35.207^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kyree.ns.cloudflare.com`
MX	`route3.mx.cloudflare.net` ⭐
		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	`route2.mx.cloudflare.net`⁽⁷⁷⁾
		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	`route1.mx.cloudflare.net`⁽⁸³⁾
		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	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.79.234, 172.67.149.237
		IPv6 hints	2606:4700:3030::6815:4fea, 2606:4700:3034::ac43:95ed
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=239, name=cloudflare-ech.com
SOA	`keira.ns.cloudflare.com`dns@cloudflare.com serial=2399580154

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1775958596

WOT: SAFE (60/100)

Same first word

ac21.ru

ac21.org

ac21.com

ac21.net

Similar names

ac12.com

21ac.com

ca21.es

ac12.de

1a2c.com

21ca.com

12ac.com

ac12.top

c12a.com

ca21.co.uk

ca21.com

12ca.com

12ac.cc

21ca.com.cn

ca12.com

a2c1.com

a21c.net

c1a2.com

21ca.ac

21ca.cn

21ca.eu

a21c.com

21ca.net

DNS History

15 records (9 active, 6 former)

●NSkeira.ns.cloudflare.com2026-03-28 → 2026-04-12 · 3 obs

○ 2020-02-24 09:59:38
● 2026-03-28 04:45:58
● 2026-04-12 02:14:32

●NSkyree.ns.cloudflare.com2026-03-28 → 2026-04-12 · 3 obs

○ 2020-02-24 09:59:38
● 2026-03-28 04:45:58
● 2026-04-12 02:14:32

○NSns1.ac21.org2015-08-15 → 2020-02-24 · 4 obs

● 2015-08-15 11:48:10
● 2020-02-24 09:59:38
○ 2026-03-28 04:45:58
○ 2026-04-12 02:14:32

○NSns2.ac21.org2015-08-15 → 2020-02-24 · 4 obs

● 2015-08-15 11:48:10
● 2020-02-24 09:59:38
○ 2026-03-28 04:45:58
○ 2026-04-12 02:14:32

○MXmail.ac21.org2015-08-15 → 2020-02-24 · 4 obs

● 2015-08-15 11:48:10
● 2020-02-24 09:59:38
○ 2026-03-28 04:45:58
○ 2026-04-12 02:14:32

●MXroute1.mx.cloudflare.net2026-03-28 → 2026-04-12 · 3 obs

○ 2020-02-24 09:59:38
● 2026-03-28 04:45:58
● 2026-04-12 02:14:32

●MXroute2.mx.cloudflare.net2026-03-28 → 2026-04-12 · 3 obs

○ 2020-02-24 09:59:38
● 2026-03-28 04:45:58
● 2026-04-12 02:14:32

●MXroute3.mx.cloudflare.net2026-03-28 → 2026-04-12 · 3 obs

○ 2020-02-24 09:59:38
● 2026-03-28 04:45:58
● 2026-04-12 02:14:32

●A104.21.79.2342026-03-28 → 2026-04-12 · 3 obs

○ 2020-02-24 09:59:38
● 2026-03-28 04:45:58
● 2026-04-12 02:14:32

○A133.6.53.2002015-08-15 → 2020-02-24 · 4 obs

● 2015-08-15 11:48:10
● 2020-02-24 09:59:38
○ 2026-03-28 04:45:58
○ 2026-04-12 02:14:32

●A172.67.149.2372026-03-28 → 2026-04-12 · 3 obs

○ 2020-02-24 09:59:38
● 2026-03-28 04:45:58
● 2026-04-12 02:14:32

●A2606:4700:3030::6815:4fea2026-03-28 → 2026-04-12 · 5 obs

○ 2020-02-24 09:59:38
● 2026-03-28 04:45:58
○ 2026-03-29 08:48:32
● 2026-04-05 08:53:26
● 2026-04-12 02:14:32

●A2606:4700:3034::ac43:95ed2026-03-28 → 2026-04-12 · 5 obs

○ 2020-02-24 09:59:38
● 2026-03-28 04:45:58
○ 2026-03-29 08:48:32
● 2026-04-05 08:53:26
● 2026-04-12 02:14:32

○A2a06:98c1:3120::2026-03-29 → 2026-03-29 · 4 obs

○ 2026-03-28 04:45:58
● 2026-03-29 08:48:32
○ 2026-04-05 08:53:26
○ 2026-04-12 02:14:32

○A2a06:98c1:3121::2026-03-29 → 2026-03-29 · 4 obs

○ 2026-03-28 04:45:58
● 2026-03-29 08:48:32
○ 2026-04-05 08:53:26
○ 2026-04-12 02:14:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
ac21.org	keira.ns.cloudflare.com, kyree.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.206

NS records: keira.ns.cloudflare.com, kyree.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ac21.org (unsigned zone)

⏱️ Timing

Total: 539ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.149.237, 104.21.79.234`
AAAA	2	`2606:4700:3030::6815:4fea, 2606:4700:3034::ac43:95ed`
NS	2	`keira.ns.cloudflare.com, kyree.ns.cloudflare.com`
MX	3	`route3.mx.cloudflare.net (pri: 4), route2.mx.cloudflare.net (pri: 77)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`keira.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

ac21.org points to four IP numbers: 2606:4700:3030::6815:4fea, 2606:4700:3034::ac43:95ed, 104.21.79.234 and 172.67.149.237.

Other host names including freshpetfood.com, americanfranchiseacademy.com, azsounds.cloud, wienrp.at and zh-cni-lanjing.com share IP numbers with ac21.org.

Name Servers

ac21.org's delegation uses two name servers, keira.ns.cloudflare.com and kyree.ns.cloudflare.com.

ac21.org shares the same name server setup as other domains, for example g8online.org, fireplace.gg, futureofscience.org, bike-total.at and agfrag.com.

ac21.org at least partially shares name servers with other domains, including annekemp.com, plnkapkan.com, altotieteonline.com.br, theenergysummit.org and frontline-security.org.

these name servers are commonly used together with ram.ns.cloudflare.com, weston.ns.cloudflare.com and sky.ns.cloudflare.com.

Host names with six IP numbers:

keira.ns.cloudflare.com points to: 2606:4700:50::a29f:26ce, 2803:f800:50::6ca2:c2ce, 2a06:98c1:50::ac40:22ce, 108.162.194.206, 162.159.38.206 and 172.64.34.206.

kyree.ns.cloudflare.com points to: 2606:4700:58::a29f:2ccf, 2803:f800:50::6ca2:c3cf, 2a06:98c1:50::ac40:23cf, 108.162.195.207, 162.159.44.207 and 172.64.35.207.

Mail Servers

ac21.org is handled by three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

The mail servers for ac21.org are shared with other domains, for instance ckding.com, bitkit.dk, go-kinogo.com, currar.com and fastreplacementglass.com.

Host names with six IP numbers:

route1.mx.cloudflare.net points to 2606:4700:f5::b, 2606:4700:f5::c, 2606:4700:f5::d, 162.159.205.11, 162.159.205.12 and 162.159.205.13.

route2.mx.cloudflare.net points to 2606:4700:f5::e, 2606:4700:f5::f, 2606:4700:f5::10, 162.159.205.17, 162.159.205.18 and 162.159.205.19.

route3.mx.cloudflare.net points to 2606:4700:f5::11, 2606:4700:f5::12, 2606:4700:f5::13, 162.159.205.23, 162.159.205.24 and 162.159.205.25.

ac21.org - robtex.com

ac21.org

org

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`ac21.org`

`org`