`fc4square.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:5f^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:96d0^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.0.95^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.150.208^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`archer.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c88^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`archer.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c388^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`archer.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2388^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`archer.ns.cloudflare.com`
		A	108.162.195.136^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`archer.ns.cloudflare.com`
		A	162.159.44.136^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`archer.ns.cloudflare.com`
		A	172.64.35.136^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`archer.ns.cloudflare.com`
NS	`paislee.ns.cloudflare.com`
		A	2606:4700:50::a29f:26b7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paislee.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2b7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`paislee.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22b7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`paislee.ns.cloudflare.com`
		A	108.162.194.183^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paislee.ns.cloudflare.com`
		A	162.159.38.183^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paislee.ns.cloudflare.com`
		A	172.64.34.183^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paislee.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.0.95, 172.67.150.208
		IPv6 hints	2606:4700:3033::6815:5f, 2606:4700:3033::ac43:96d0
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=168, name=cloudflare-ech.com
SOA	`archer.ns.cloudflare.com`dns@cloudflare.com serial=2403575043

`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=1778320147

rank #960448 globally
rank #78510 in the tld

Same first word

fc4square.org

DNS History

19 records (6 active, 13 former)

●NSarcher.ns.cloudflare.com2026-04-21 → 2026-05-09 · 3 obs

○ 2018-05-18 08:25:32
● 2026-04-21 02:28:10
● 2026-05-09 10:05:36

○NSdns1.p04.nsone.net2018-05-18 → 2018-05-18 · 3 obs

● 2018-05-18 08:25:32
○ 2026-04-21 02:28:10
○ 2026-05-09 10:05:36

○NSdns2.p04.nsone.net2018-05-18 → 2018-05-18 · 3 obs

● 2018-05-18 08:25:32
○ 2026-04-21 02:28:10
○ 2026-05-09 10:05:36

○NSdns3.p04.nsone.net2018-05-18 → 2018-05-18 · 3 obs

● 2018-05-18 08:25:32
○ 2026-04-21 02:28:10
○ 2026-05-09 10:05:36

○NSdns4.p04.nsone.net2018-05-18 → 2018-05-18 · 3 obs

● 2018-05-18 08:25:32
○ 2026-04-21 02:28:10
○ 2026-05-09 10:05:36

●NSpaislee.ns.cloudflare.com2026-04-21 → 2026-05-09 · 3 obs

○ 2018-05-18 08:25:32
● 2026-04-21 02:28:10
● 2026-05-09 10:05:36

○MXalt1.aspmx.l.google.com2018-05-18 → 2018-05-18 · 3 obs

● 2018-05-18 08:25:32
○ 2026-04-21 02:28:10
○ 2026-05-09 10:05:36

○MXalt2.aspmx.l.google.com2018-05-18 → 2018-05-18 · 3 obs

● 2018-05-18 08:25:32
○ 2026-04-21 02:28:10
○ 2026-05-09 10:05:36

○MXalt3.aspmx.l.google.com2018-05-18 → 2018-05-18 · 3 obs

● 2018-05-18 08:25:32
○ 2026-04-21 02:28:10
○ 2026-05-09 10:05:36

○MXalt4.aspmx.l.google.com2018-05-18 → 2018-05-18 · 3 obs

● 2018-05-18 08:25:32
○ 2026-04-21 02:28:10
○ 2026-05-09 10:05:36

○MXaspmx.l.google.com2018-05-18 → 2018-05-18 · 3 obs

● 2018-05-18 08:25:32
○ 2026-04-21 02:28:10
○ 2026-05-09 10:05:36

●A104.21.0.952026-04-21 → 2026-05-09 · 3 obs

○ 2018-05-18 08:25:32
● 2026-04-21 02:28:10
● 2026-05-09 10:05:36

●A172.67.150.2082026-04-21 → 2026-05-09 · 3 obs

○ 2018-05-18 08:25:32
● 2026-04-21 02:28:10
● 2026-05-09 10:05:36

○A198.185.159.1442018-05-18 → 2018-05-18 · 3 obs

● 2018-05-18 08:25:32
○ 2026-04-21 02:28:10
○ 2026-05-09 10:05:36

○A198.185.159.1452018-05-18 → 2018-05-18 · 3 obs

● 2018-05-18 08:25:32
○ 2026-04-21 02:28:10
○ 2026-05-09 10:05:36

○A198.49.23.1442018-05-18 → 2018-05-18 · 3 obs

● 2018-05-18 08:25:32
○ 2026-04-21 02:28:10
○ 2026-05-09 10:05:36

○A198.49.23.1452018-05-18 → 2018-05-18 · 3 obs

● 2018-05-18 08:25:32
○ 2026-04-21 02:28:10
○ 2026-05-09 10:05:36

●A2606:4700:3033::6815:5f2026-04-21 → 2026-05-09 · 3 obs

○ 2018-05-18 08:25:32
● 2026-04-21 02:28:10
● 2026-05-09 10:05:36

●A2606:4700:3033::ac43:96d02026-04-21 → 2026-05-09 · 3 obs

○ 2018-05-18 08:25:32
● 2026-04-21 02:28:10
● 2026-05-09 10:05:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org	-
fc4square.org	archer.ns.cloudflare.com, paislee.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.183

NS records: archer.ns.cloudflare.com, paislee.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fc4square.org (unsigned zone)

⏱️ Timing

Total: 962ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.150.208, 104.21.0.95`
AAAA	2	`2606:4700:3033::ac43:96d0, 2606:4700:3033::6815:5f`
NS	2	`archer.ns.cloudflare.com, paislee.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`archer.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

fc4square.org points to four IP numbers: 2606:4700:3033::6815:5f, 2606:4700:3033::ac43:96d0, 104.21.0.95 and 172.67.150.208.

Other host names, for instance mothhelah-store.com, tramasoli.com, wooddaleacademy.org, weemo.jp and prime-automation.com share IP numbers with fc4square.org.

Name Servers

Delegation for fc4square.org rests with two name servers, archer.ns.cloudflare.com and paislee.ns.cloudflare.com.

fc4square.org shares the same name server setup as other domains, including 4carma.com, whatsonoldham.org, theaccelerator.tech, ndesign.at and kidslab.dev.

fc4square.org at least partially shares name servers with other domains, for instance robin-w.de, qat.qld.edu.au, lazurlake.ru, wlmmcn.com and ogloszenie-33g22eg46fppmsty66qxy5.com.

These name servers are commonly used alongside tosana.ns.cloudflare.com, jobs.ns.cloudflare.com, vick.ns.cloudflare.com and liz.ns.cloudflare.com.

Host names with six IP numbers: archer.ns.cloudflare.com points to: 2606:4700:58::a29f:2c88, 2803:f800:50::6ca2:c388, 2a06:98c1:50::ac40:2388, 108.162.195.136, 162.159.44.136 and 172.64.35.136. paislee.ns.cloudflare.com points to: 2606:4700:50::a29f:26b7, 2803:f800:50::6ca2:c2b7, 2a06:98c1:50::ac40:22b7, 108.162.194.183, 162.159.38.183 and 172.64.34.183.

fc4square.org - robtex.com

fc4square.org

org

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`fc4square.org`

`org`