`calfedu.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:880f^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:2e45^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.46.69^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.136.15^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`amos.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c78^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amos.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c378^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`amos.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2378^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`amos.ns.cloudflare.com`
		A	108.162.195.120^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amos.ns.cloudflare.com`
		A	162.159.44.120^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amos.ns.cloudflare.com`
		A	172.64.35.120^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amos.ns.cloudflare.com`
NS	`brit.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a4e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brit.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c04e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`brit.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:204e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`brit.ns.cloudflare.com`
		A	108.162.192.78^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brit.ns.cloudflare.com`
		A	172.64.32.78^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brit.ns.cloudflare.com`
		A	173.245.58.78^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brit.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.46.69, 172.67.136.15
		IPv6 hints	2606:4700:3030::ac43:880f, 2606:4700:3034::6815:2e45
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=165, name=cloudflare-ech.com
SOA	`amos.ns.cloudflare.com`dns@cloudflare.com serial=2401837919

`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=1777246701

Same first word

calfedu.com

Similar names

cadfule.hatenablog.com

fclaude.workers.dev

claudef.ch

fclaude.me

DNS History

16 records (6 active, 10 former)

●NSamos.ns.cloudflare.com2026-04-26 → 2026-04-26 · 3 obs

○ 2020-01-21 23:13:30
● 2026-04-26 23:42:18
● 2026-04-26 23:42:20

●NSbrit.ns.cloudflare.com2026-04-26 → 2026-04-26 · 3 obs

○ 2020-01-21 23:13:30
● 2026-04-26 23:42:18
● 2026-04-26 23:42:20

○NSf1g1ns1.dnspod.net2015-07-05 → 2015-07-05 · 3 obs

● 2015-07-05 22:50:18
○ 2015-11-19 07:07:40
○ 2026-04-26 23:42:20

○NSf1g1ns2.dnspod.net2015-07-05 → 2015-07-05 · 3 obs

● 2015-07-05 22:50:18
○ 2015-11-19 07:07:40
○ 2026-04-26 23:42:20

○NSns1.51dns.com2016-05-07 → 2017-02-03 · 5 obs

○ 2015-11-19 07:07:40
● 2016-05-07 11:38:04
● 2017-02-03 07:51:58
○ 2020-01-21 23:13:30
○ 2026-04-26 23:42:20

○NSv1s1.xundns.com2020-01-21 → 2020-01-21 · 4 obs

○ 2017-02-03 07:51:58
● 2020-01-21 23:13:30
○ 2026-04-26 23:42:18
○ 2026-04-26 23:42:20

●A104.21.46.692026-04-26 → 2026-04-26 · 3 obs

○ 2020-01-21 23:13:30
● 2026-04-26 23:42:18
● 2026-04-26 23:42:20

○A156.249.230.1812020-01-21 → 2020-01-21 · 4 obs

○ 2017-02-03 07:51:58
● 2020-01-21 23:13:30
○ 2026-04-26 23:42:18
○ 2026-04-26 23:42:20

●A172.67.136.152026-04-26 → 2026-04-26 · 3 obs

○ 2020-01-21 23:13:30
● 2026-04-26 23:42:18
● 2026-04-26 23:42:20

○A188.114.96.02026-04-26 → 2026-04-26 · 2 obs

○ 2026-04-26 23:42:18
○ 2026-04-26 23:42:20

○A188.114.97.02026-04-26 → 2026-04-26 · 2 obs

○ 2026-04-26 23:42:18
○ 2026-04-26 23:42:20

●A2606:4700:3030::ac43:880f2026-04-26 → 2026-04-26 · 3 obs

○ 2020-01-21 23:13:30
● 2026-04-26 23:42:18
● 2026-04-26 23:42:20

●A2606:4700:3034::6815:2e452026-04-26 → 2026-04-26 · 3 obs

○ 2020-01-21 23:13:30
● 2026-04-26 23:42:18
● 2026-04-26 23:42:20

○A2a06:98c1:3120::2026-04-26 → 2026-04-26 · 2 obs

○ 2026-04-26 23:42:18
○ 2026-04-26 23:42:20

○A2a06:98c1:3121::2026-04-26 → 2026-04-26 · 2 obs

○ 2026-04-26 23:42:18
○ 2026-04-26 23:42:20

○A45.43.233.542016-02-12 → 2017-02-03 · 4 obs

● 2016-02-12 02:54:02
● 2017-02-03 07:51:58
○ 2020-01-21 23:13:30
○ 2026-04-26 23:42:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
calfedu.com	brit.ns.cloudflare.com, amos.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.78

NS records: brit.ns.cloudflare.com, amos.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for calfedu.com (unsigned zone)

⏱️ Timing

Total: 575ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.46.69, 172.67.136.15`
AAAA	2	`2606:4700:3030::ac43:880f, 2606:4700:3034::6815:2e45`
NS	2	`amos.ns.cloudflare.com, brit.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`amos.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

calfedu.com resolves to four IP numbers: 2606:4700:3030::ac43:880f, 2606:4700:3034::6815:2e45, 104.21.46.69 and 172.67.136.15.

other host names for instance a6b42127ee84.artont.com, www.laboratorio(0x616e616c)isinuorese.it.cdn.cloudflare.net, karisma.biz, www.voipsmash.com and alwine-4.cfd share IP numbers with calfedu.com.

Name Servers

calfedu.com is delegated to two name servers: amos.ns.cloudflare.com and brit.ns.cloudflare.com.

calfedu.com shares the same name server setup as other domains, for example hbrjwj.com, tysmjj.com, szsenga.com, xcsp17.com and softdown8.com.

calfedu.com at least partially shares name servers with other domains, for instance mea5ms.com, campnows.com, t4tsa.cc, infodivio.com and thonell.com.

These name servers are commonly used with the name servers teagan.ns.cloudflare.com.

Host names with six IP numbers:

amos.ns.cloudflare.com points to: 2606:4700:58::a29f:2c78, 2803:f800:50::6ca2:c378, 2a06:98c1:50::ac40:2378, 108.162.195.120, 162.159.44.120 and 172.64.35.120; brit.ns.cloudflare.com points to: 2606:4700:50::adf5:3a4e, 2803:f800:50::6ca2:c04e, 2a06:98c1:50::ac40:204e, 108.162.192.78, 172.64.32.78 and 173.245.58.78.

calfedu.com - robtex.com

calfedu.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`calfedu.com`

`com`