`rankcastle.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:1ec0^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:ad8c^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.30.192^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.173.140^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`may.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a87^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`may.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c087^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`may.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2087^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`may.ns.cloudflare.com`
		A	108.162.192.135^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`may.ns.cloudflare.com`
		A	172.64.32.135^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`may.ns.cloudflare.com`
		A	173.245.58.135^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`may.ns.cloudflare.com`
NS	`sam.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b8d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sam.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c18d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sam.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:218d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sam.ns.cloudflare.com`
		A	108.162.193.141^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sam.ns.cloudflare.com`
		A	172.64.33.141^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sam.ns.cloudflare.com`
		A	173.245.59.141^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sam.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4023:2801::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`lcausi-in-f27.1e100.net`
		A	192.178.128.27^{🇺🇸 Google192.178.128.0/24}
			PTR	`lcausi-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:4013:c1e::1a^{🇳🇱 Google2a00:1450:4013::/48}
			PTR	`yugrqzs-in-f26.1e100.net`
		A	192.178.213.26^{🇺🇸 Google192.178.213.0/24}
			PTR	`yugrqzs-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4001:c21::1b^{🇩🇪 Google2a00:1450:4001::/48}
			PTR	`lcfrai-in-f27.1e100.net`
		A	142.251.127.26^{🇺🇸 Google142.251.127.0/24}
			PTR	`lcfrai-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4025:c01::1a^{🇵🇱 Google2a00:1450:4025::/48}
			PTR	`rd-in-f26.1e100.net`
		A	142.250.147.26^{🇺🇸 Google142.250.147.0/24}
			PTR	`rd-in-f26.1e100.net`
MX	`7slfjiuttzovrlkwquvuphcsdsphbruokvc6anmz5syezriwmpfa.mx-verification.google.com`⁽¹⁵⁾
TXT	`ahrefs-site-verification_89c8739598738d4748243871ea213061b9fe376b7adb557710c6...`
TXT	`cryptomus=bba1375e`
TXT	`google-site-verification=_JZUopOeXVitVoUrR5xSHJ5wxo5VReA1meywTMUWY8o`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.30.192, 172.67.173.140
		IPv6 hints	2606:4700:3030::6815:1ec0, 2606:4700:3037::ac43:ad8c
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=216, name=cloudflare-ech.com
SOA	`may.ns.cloudflare.com`dns@cloudflare.com serial=2399239978

`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=1775166902

Same first word

rankcastle.com

Similar names

learnstack.co

cstalnaker.com

cleantraks.net

cleankstar.shop

kasterclan.com

askcentral.net

askcentral.com

learnstack.com

tasklancer.com

askcentral.co.uk

learnstack.in

DNS History

12 records (12 active, 0 former)

●NSmay.ns.cloudflare.com2026-02-22 → 2026-04-02 · 2 obs

● 2026-02-22 09:22:26
● 2026-04-02 22:10:48

●NSsam.ns.cloudflare.com2026-02-22 → 2026-04-02 · 2 obs

● 2026-02-22 09:22:26
● 2026-04-02 22:10:48

●MX7slfjiuttzovrlkwquvuphcsdsphbruokvc6anmz5syezriwmpfa.mx-verification.google.com2026-02-22 → 2026-04-02 · 2 obs

● 2026-02-22 09:22:26
● 2026-04-02 22:10:48

●MXalt1.aspmx.l.google.com2026-02-22 → 2026-04-02 · 2 obs

● 2026-02-22 09:22:26
● 2026-04-02 22:10:48

●MXalt2.aspmx.l.google.com2026-02-22 → 2026-04-02 · 2 obs

● 2026-02-22 09:22:26
● 2026-04-02 22:10:48

●MXalt3.aspmx.l.google.com2026-02-22 → 2026-04-02 · 2 obs

● 2026-02-22 09:22:26
● 2026-04-02 22:10:48

●MXalt4.aspmx.l.google.com2026-02-22 → 2026-04-02 · 2 obs

● 2026-02-22 09:22:26
● 2026-04-02 22:10:48

●MXaspmx.l.google.com2026-02-22 → 2026-04-02 · 2 obs

● 2026-02-22 09:22:26
● 2026-04-02 22:10:48

●A104.21.30.1922026-02-22 → 2026-04-02 · 2 obs

● 2026-02-22 09:22:26
● 2026-04-02 22:10:48

●A172.67.173.1402026-02-22 → 2026-04-02 · 2 obs

● 2026-02-22 09:22:26
● 2026-04-02 22:10:48

●A2606:4700:3030::6815:1ec02026-02-22 → 2026-04-02 · 2 obs

● 2026-02-22 09:22:26
● 2026-04-02 22:10:48

●A2606:4700:3037::ac43:ad8c2026-02-22 → 2026-04-02 · 2 obs

● 2026-02-22 09:22:26
● 2026-04-02 22:10:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, b.gtld-servers.net, g.gtld-servers.net, l.gtld-servers.net...	-
rankcastle.com	may.ns.cloudflare.com, sam.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.141

NS records: may.ns.cloudflare.com, sam.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rankcastle.com (unsigned zone)

⏱️ Timing

Total: 347ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.30.192, 172.67.173.140`
AAAA	2	`2606:4700:3037::ac43:ad8c, 2606:4700:3030::6815:1ec0`
NS	2	`may.ns.cloudflare.com, sam.ns.cloudflare.com`
MX	6	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	3	`ahrefs-site-verification_89c8739598738d4, cryptomus=bba1375e...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`may.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

rankcastle.com maps to four IP numbers: 2606:4700:3030::6815:1ec0, 2606:4700:3037::ac43:ad8c, 104.21.30.192 and 172.67.173.140.

Other host names such as xgschool.cn, menspeed.com, mail.dvsatu.biz, tick.com.au and mrpachocasino.cz share IPs with rankcastle.com.

Name Servers

Two name servers may.ns.cloudflare.com and sam.ns.cloudflare.com handle the delegation for rankcastle.com.

rankcastle.com shares the same name server setup as other domains, for example rooban.net, goto.my, topdreamer.com, jesdarmanin.com and e-creative.media.