castlelearning.com - dns.ninja

`castlelearning.com`

DNSSEC	⚠️ Not signed
A	2606:4700:440d::6812:29cc^{🇺🇸 Cloudflare2606:4700:440d::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2a06:98c1:3107::ac40:9234^{🇺🇸 Cloudflare2a06:98c1:3107::/48} ✓ In HTTPS hints
A	104.18.41.204^{Cloudflare104.18.41.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.64.146.52^{🇺🇸 Cloudflare172.64.146.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`paul.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b87^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paul.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c187^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`paul.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2187^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`paul.ns.cloudflare.com`
		A	108.162.193.135^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paul.ns.cloudflare.com`
		A	172.64.33.135^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paul.ns.cloudflare.com`
		A	173.245.59.135^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paul.ns.cloudflare.com`
NS	`zara.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a94^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zara.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c094^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`zara.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2094^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`zara.ns.cloudflare.com`
		A	108.162.192.148^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zara.ns.cloudflare.com`
		A	172.64.32.148^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zara.ns.cloudflare.com`
		A	173.245.58.148^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zara.ns.cloudflare.com`
MX	`castlelearning-com.mail.protection.outlook.com` ⭐
		A	52.101.190.0^{🇨🇦 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-yt5pr01cu00100.inbound.protection.outlook.com`
		A	52.101.190.1^{🇨🇦 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-yt3pr01cu00701.inbound.protection.outlook.com`
		A	52.101.190.2^{🇨🇦 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-yt3pr01cu00602.inbound.protection.outlook.com`
		A	52.101.192.0^{🇨🇦 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-yqzpr01cu00900.inbound.protection.outlook.com`
TXT	`MS=ms84207764`
TXT	`_globalsign-domain-verification=khGdSYcz0e7HSh_VCotULooapIkvUvB1u8Lfttze9d`
TXT	`anthropic-domain-verification-55gtm0=5Rz2AWLhqV0XvGbK0ppHO1pqx`
TXT	`dropbox-domain-verification=se3h0hv781zb`
TXT	`google-site-verification=d5dwvMi8hVnuZy1uggRxzQ19oaiOczidQzdg0VqRTkU`
TXT	`status-page-domain-verification=vrdzcbjq9jdl`
TXT	`v=spf1 redirect=_srb6l6xyk.sdmarc.net`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.18.41.204, 172.64.146.52
		IPv6 hints	2606:4700:440d::6812:29cc, 2a06:98c1:3107::ac40:9234
SOA	`paul.ns.cloudflare.com`dns@cloudflare.com serial=2410555204

`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=1786587324

rank #940134 globally
rank #402473 in the tld
WOT: SAFE (93/100)
📈 Tranco rank: #99,306

Subdomains

blog.castlelearning.com

corp.castlelearning.com

qa.castlelearning.com

cl.castlelearning.com

www.castlelearning.com

Same first word

castlelearning.com

castlelearning.org

castlelearning.info

Similar names

DNS History

24 records (7 active, 17 former)

○NSns.rackspace.com2015-06-25 → 2017-02-13 · 4 obs

● 2015-06-25 05:04:06
● 2017-02-13 04:23:34
○ 2019-06-05 22:49:54
○ 2026-08-13 02:26:32

○NSns2.rackspace.com2015-06-25 → 2017-02-13 · 4 obs

● 2015-06-25 05:04:06
● 2017-02-13 04:23:34
○ 2019-06-05 22:49:54
○ 2026-08-13 02:26:32

●NSpaul.ns.cloudflare.com2019-06-05 → 2026-08-13 · 3 obs

○ 2017-02-13 04:23:34
● 2019-06-05 22:49:54
● 2026-08-13 02:26:32

●NSzara.ns.cloudflare.com2019-06-05 → 2026-08-13 · 3 obs

○ 2017-02-13 04:23:34
● 2019-06-05 22:49:54
● 2026-08-13 02:26:32

○MXalt1.aspmx.l.google.com2015-06-25 → 2019-06-05 · 4 obs

● 2015-06-25 05:04:06
● 2019-06-05 22:49:54
○ 2026-02-16 02:20:20
○ 2026-08-13 02:26:32

○MXalt2.aspmx.l.google.com2015-06-25 → 2019-06-05 · 4 obs

● 2015-06-25 05:04:06
● 2019-06-05 22:49:54
○ 2026-02-16 02:20:20
○ 2026-08-13 02:26:32

○MXaspmx.l.google.com2015-06-25 → 2019-06-05 · 4 obs

● 2015-06-25 05:04:06
● 2019-06-05 22:49:54
○ 2026-02-16 02:20:20
○ 2026-08-13 02:26:32

○MXaspmx2.googlemail.com2015-06-25 → 2019-06-05 · 4 obs

● 2015-06-25 05:04:06
● 2019-06-05 22:49:54
○ 2026-02-16 02:20:20
○ 2026-08-13 02:26:32

○MXaspmx3.googleemail.com2015-06-25 → 2019-06-05 · 4 obs

● 2015-06-25 05:04:06
● 2019-06-05 22:49:54
○ 2026-02-16 02:20:20
○ 2026-08-13 02:26:32

●MXcastlelearning-com.mail.protection.outlook.com2026-02-16 → 2026-08-13 · 3 obs

○ 2019-06-05 22:49:54
● 2026-02-16 02:20:20
● 2026-08-13 02:26:32

●A104.18.41.2042026-02-16 → 2026-08-13 · 3 obs

○ 2019-06-05 22:49:54
● 2026-02-16 02:20:20
● 2026-08-13 02:26:32

○A104.20.98.342019-06-05 → 2019-06-05 · 4 obs

○ 2017-02-13 04:23:34
● 2019-06-05 22:49:54
○ 2026-02-16 02:20:20
○ 2026-08-13 02:26:32

○A104.20.99.342019-06-05 → 2019-06-05 · 4 obs

○ 2017-02-13 04:23:34
● 2019-06-05 22:49:54
○ 2026-02-16 02:20:20
○ 2026-08-13 02:26:32

○A107.154.146.1622017-02-13 → 2017-02-13 · 4 obs

○ 2016-04-18 13:30:46
● 2017-02-13 04:23:34
○ 2019-06-05 22:49:54
○ 2026-08-13 02:26:32

○A107.154.148.1622017-02-13 → 2017-02-13 · 4 obs

○ 2016-04-18 13:30:46
● 2017-02-13 04:23:34
○ 2019-06-05 22:49:54
○ 2026-08-13 02:26:32

●A172.64.146.522026-02-16 → 2026-08-13 · 3 obs

○ 2019-06-05 22:49:54
● 2026-02-16 02:20:20
● 2026-08-13 02:26:32

○A199.83.128.2002015-06-25 → 2016-04-18 · 4 obs

● 2015-06-25 05:04:06
● 2016-04-18 13:30:46
○ 2017-02-13 04:23:34
○ 2026-08-13 02:26:32

○A199.83.132.2002015-06-25 → 2016-04-18 · 4 obs

● 2015-06-25 05:04:06
● 2016-04-18 13:30:46
○ 2017-02-13 04:23:34
○ 2026-08-13 02:26:32

○A2606:4700:10::6814:62222019-06-05 → 2019-06-05 · 4 obs

○ 2017-02-13 04:23:34
● 2019-06-05 22:49:54
○ 2026-02-16 02:20:20
○ 2026-08-13 02:26:32

○A2606:4700:10::6814:63222019-06-05 → 2019-06-05 · 4 obs

○ 2017-02-13 04:23:34
● 2019-06-05 22:49:54
○ 2026-02-16 02:20:20
○ 2026-08-13 02:26:32

●A2606:4700:440d::6812:29cc2026-07-08 → 2026-08-13 · 3 obs

○ 2026-02-16 02:20:20
● 2026-07-08 05:11:14
● 2026-08-13 02:26:32

○A2a06:98c1:3103::ac40:92342026-02-16 → 2026-02-16 · 4 obs

○ 2019-06-05 22:49:54
● 2026-02-16 02:20:20
○ 2026-07-08 05:11:14
○ 2026-08-13 02:26:32

●A2a06:98c1:3107::ac40:92342026-07-08 → 2026-08-13 · 3 obs

○ 2026-02-16 02:20:20
● 2026-07-08 05:11:14
● 2026-08-13 02:26:32

○A2a06:98c1:310c::6812:29cc2026-02-16 → 2026-02-16 · 4 obs

○ 2019-06-05 22:49:54
● 2026-02-16 02:20:20
○ 2026-07-08 05:11:14
○ 2026-08-13 02:26:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
castlelearning.com	paul.ns.cloudflare.com, zara.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.148

NS records: paul.ns.cloudflare.com, zara.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for castlelearning.com (unsigned zone)

⏱️ Timing

Total: 982ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.64.146.52, 104.18.41.204`
AAAA	2	`2606:4700:440d::6812:29cc, 2a06:98c1:3107::ac40:9234`
NS	2	`paul.ns.cloudflare.com, zara.ns.cloudflare.com`
MX	1	`castlelearning-com.mail.protection.outlo`
TXT	7	`MS=ms84207764, _globalsign-domain-verification=khGdSYcz...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`paul.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The domain castlelearning.com serves as parent to blog.castlelearning.com, corp.castlelearning.com, qa.castlelearning.com, cl.castlelearning.com and www.castlelearning.com.

IP Addresses

castlelearning.com directs to four IP numbers, which are 104.18.41.204, 172.64.146.52, 2606:4700:440d::6812:29cc and 2a06:98c1:3107::ac40:9234.

sales300-wd99.myworkdaycdn.net, crd.lbl.gov.cdn.cloudflare.net, www.bain.es.cdn.cloudflare.net and two other host names share IP numbers with castlelearning.com.

Name Servers

Two name servers handle the delegation for castlelearning.com: paul.ns.cloudflare.com and zara.ns.cloudflare.com.

castlelearning.com uses the same name servers as several other domains — among them glasscasesentiment.com, austinzencenter.org, hostaweb.be and two more.

At least some of castlelearning.com's name servers are shared with other domains, for example buma-soft.com, sig.pl, elevateyourwork.com and two more.

These name servers are often deployed together with the name servers stan.ns.cloudflare.com, arya.ns.cloudflare.com, dina.ns.cloudflare.com and edna.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

paul.ns.cloudflare.com resolves to 108.162.193.135, 172.64.33.135 and 173.245.59.135 among others, with 3 other IP addresses in total.

zara.ns.cloudflare.com resolves to 108.162.192.148, 172.64.32.148 and 173.245.58.148 among others, with 3 other IP addresses in total.

Mail Servers

Mail for castlelearning.com is handled by a single mail server, castlelearning-com.mail.protection.outlook.com.

castlelearning-com.mail.protection.outlook.com has four IP addresses: 52.101.190.0, 52.101.190.1, 52.101.190.2 and 52.101.192.0.