`schoolofhk.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:3281^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:a33b^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.50.129^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.163.59^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`elinore.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a99^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elinore.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c099^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elinore.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2099^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elinore.ns.cloudflare.com`
		A	108.162.192.153^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elinore.ns.cloudflare.com`
		A	172.64.32.153^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elinore.ns.cloudflare.com`
		A	173.245.58.153^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elinore.ns.cloudflare.com`
NS	`terin.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bec^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`terin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ec^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`terin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ec^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`terin.ns.cloudflare.com`
		A	108.162.193.236^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`terin.ns.cloudflare.com`
		A	172.64.33.236^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`terin.ns.cloudflare.com`
		A	173.245.59.236^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`terin.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.50.129, 172.67.163.59
		IPv6 hints	2606:4700:3032::6815:3281, 2606:4700:3035::ac43:a33b
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=161, name=cloudflare-ech.com
SOA	`elinore.ns.cloudflare.com`dns@cloudflare.com serial=2408230481

`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=1786516899

rank #824379 globally
rank #342948 in the tld

Same first word

schoolofhk.com

schoolofhk.org

DNS History

16 records (6 active, 10 former)

●NSelinore.ns.cloudflare.com2026-07-12 → 2026-08-12 · 3 obs

○ 2026-06-03 11:14:58
● 2026-07-12 13:11:06
● 2026-08-12 06:48:36

○NSns1.dns.com2026-05-22 → 2026-06-03 · 5 obs

○ 2018-01-27 23:46:48
● 2026-05-22 07:14:10
● 2026-06-03 11:14:58
○ 2026-07-12 13:11:06
○ 2026-08-12 06:48:36

○NSns15.domaincontrol.com2015-07-11 → 2016-12-25 · 4 obs

● 2015-07-11 08:01:42
● 2016-12-25 18:32:42
○ 2018-01-27 23:46:48
○ 2026-08-12 06:48:36

○NSns16.domaincontrol.com2015-07-11 → 2016-12-25 · 4 obs

● 2015-07-11 08:01:42
● 2016-12-25 18:32:42
○ 2018-01-27 23:46:48
○ 2026-08-12 06:48:36

○NSns2.dns.com2026-05-22 → 2026-06-03 · 5 obs

○ 2018-01-27 23:46:48
● 2026-05-22 07:14:10
● 2026-06-03 11:14:58
○ 2026-07-12 13:11:06
○ 2026-08-12 06:48:36

●NSterin.ns.cloudflare.com2026-07-12 → 2026-08-12 · 3 obs

○ 2026-06-03 11:14:58
● 2026-07-12 13:11:06
● 2026-08-12 06:48:36

○MXmailstore1.secureserver.net2015-07-11 → 2016-12-25 · 4 obs

● 2015-07-11 08:01:42
● 2016-12-25 18:32:42
○ 2018-01-27 23:46:48
○ 2026-08-12 06:48:36

○MXsmtp.secureserver.net2015-07-11 → 2016-12-25 · 4 obs

● 2015-07-11 08:01:42
● 2016-12-25 18:32:42
○ 2018-01-27 23:46:48
○ 2026-08-12 06:48:36

●A104.21.50.1292026-07-12 → 2026-08-12 · 3 obs

○ 2026-06-03 11:14:58
● 2026-07-12 13:11:06
● 2026-08-12 06:48:36

○A107.163.47.1802026-05-22 → 2026-06-03 · 5 obs

○ 2018-01-27 23:46:48
● 2026-05-22 07:14:10
● 2026-06-03 11:14:58
○ 2026-07-12 13:11:06
○ 2026-08-12 06:48:36

●A172.67.163.592026-07-12 → 2026-08-12 · 3 obs

○ 2026-06-03 11:14:58
● 2026-07-12 13:11:06
● 2026-08-12 06:48:36

○A2606:4700:3030::ac43:a33b2026-07-12 → 2026-07-12 · 4 obs

○ 2026-06-03 11:14:58
● 2026-07-12 13:11:06
○ 2026-07-27 18:20:42
○ 2026-08-12 06:48:36

●A2606:4700:3032::6815:32812026-07-27 → 2026-08-12 · 3 obs

○ 2026-07-12 13:11:06
● 2026-07-27 18:20:42
● 2026-08-12 06:48:36

○A2606:4700:3035::6815:32812026-07-12 → 2026-07-12 · 4 obs

○ 2026-06-03 11:14:58
● 2026-07-12 13:11:06
○ 2026-07-27 18:20:42
○ 2026-08-12 06:48:36

●A2606:4700:3035::ac43:a33b2026-07-27 → 2026-08-12 · 3 obs

○ 2026-07-12 13:11:06
● 2026-07-27 18:20:42
● 2026-08-12 06:48:36

○A50.63.202.442015-07-11 → 2016-12-25 · 4 obs

● 2015-07-11 08:01:42
● 2016-12-25 18:32:42
○ 2018-01-27 23:46:48
○ 2026-08-12 06:48:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
schoolofhk.com	elinore.ns.cloudflare.com, terin.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.153

NS records: elinore.ns.cloudflare.com, terin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for schoolofhk.com (unsigned zone)

⏱️ Timing

Total: 156ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.163.59, 104.21.50.129`
AAAA	2	`2606:4700:3032::6815:3281, 2606:4700:3035::ac43:a33b`
NS	2	`elinore.ns.cloudflare.com, terin.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`elinore.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

schoolofhk.com has four IP addresses: 104.21.50.129, 172.67.163.59, 2606:4700:3032::6815:3281 and 2606:4700:3035::ac43:a33b.

Two other host names, along with skynet-initiative.com, b.thptvothisau-tphcm.edu.vn and banjaluka.com, also share IP numbers with schoolofhk.com.

Name Servers

schoolofhk.com is delegated to two name servers: elinore.ns.cloudflare.com and terin.ns.cloudflare.com.

schoolofhk.com shares its NS records with other domains, for example romebx.com, videoeasysoft.com, tuanthuygroup.com and two others.

schoolofhk.com partially shares its NS delegation with several other domains, including csxex.com, avtaohua-l1289.vip, angelosrooms.gr and two others.

These name servers are regularly seen alongside julio.ns.cloudflare.com and rosa.ns.cloudflare.com as name servers.

DNS names with 6 IP addresses:

elinore.ns.cloudflare.com resolves to 108.162.192.153, 172.64.32.153, 173.245.58.153 and 3 other IP addresses.

terin.ns.cloudflare.com resolves to 108.162.193.236, 172.64.33.236, 173.245.59.236 and 3 other IP addresses.

schoolofhk.com - robtex.com

schoolofhk.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`schoolofhk.com`

`com`