`hdszedu.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:85db^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::6815:5d4^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.5.212^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.133.219^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`damon.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b60^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`damon.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c160^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`damon.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2160^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`damon.ns.cloudflare.com`
		A	108.162.193.96^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`damon.ns.cloudflare.com`
		A	172.64.33.96^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`damon.ns.cloudflare.com`
		A	173.245.59.96^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`damon.ns.cloudflare.com`
NS	`ines.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aa4^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ines.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0a4^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ines.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20a4^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ines.ns.cloudflare.com`
		A	108.162.192.164^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ines.ns.cloudflare.com`
		A	172.64.32.164^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ines.ns.cloudflare.com`
		A	173.245.58.164^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ines.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.5.212, 172.67.133.219
		IPv6 hints	2606:4700:3030::ac43:85db, 2606:4700:3031::6815:5d4
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=20, name=cloudflare-ech.com
SOA	`damon.ns.cloudflare.com`dns@cloudflare.com serial=2400178712

`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=1776983296

Same first word

hdszedu.cn

hdszedu.com

Similar names

dudshez.net

shzdedu.com

sdzhedu.com

duzheds.com

DNS History

15 records (6 active, 9 former)

●NSdamon.ns.cloudflare.com2026-03-26 → 2026-04-23 · 3 obs

○ 2017-04-09 03:25:04
● 2026-03-26 09:34:08
● 2026-04-23 22:37:54

○NSf1g1ns1.dnspod.net2016-09-19 → 2017-04-09 · 5 obs

○ 2015-12-15 00:51:00
● 2016-09-19 01:30:00
● 2017-04-09 03:25:04
○ 2026-03-26 09:34:08
○ 2026-04-23 22:37:54

○NSf1g1ns2.dnspod.net2016-09-19 → 2017-04-09 · 5 obs

○ 2015-12-15 00:51:00
● 2016-09-19 01:30:00
● 2017-04-09 03:25:04
○ 2026-03-26 09:34:08
○ 2026-04-23 22:37:54

●NSines.ns.cloudflare.com2026-03-26 → 2026-04-23 · 3 obs

○ 2017-04-09 03:25:04
● 2026-03-26 09:34:08
● 2026-04-23 22:37:54

○NSns.hdszedu.com2015-06-03 → 2015-12-15 · 4 obs

● 2015-06-03 12:35:08
● 2015-12-15 00:51:00
○ 2016-09-19 01:30:00
○ 2026-04-23 22:37:54

○MXmail.skrimple.com2016-04-12 → 2016-04-12 · 3 obs

● 2016-04-12 02:38:54
○ 2016-09-19 01:30:00
○ 2026-04-23 22:37:54

●A104.21.5.2122026-03-26 → 2026-04-23 · 4 obs

○ 2016-09-19 01:30:00
● 2026-03-26 09:34:08
○ 2026-03-30 11:03:44
● 2026-04-23 22:37:54

●A172.67.133.2192026-03-26 → 2026-04-23 · 4 obs

○ 2016-09-19 01:30:00
● 2026-03-26 09:34:08
○ 2026-03-30 11:03:44
● 2026-04-23 22:37:54

○A188.114.96.02026-03-30 → 2026-03-30 · 3 obs

○ 2026-03-26 09:34:08
● 2026-03-30 11:03:44
○ 2026-04-23 22:37:54

○A188.114.97.02026-03-30 → 2026-03-30 · 3 obs

○ 2026-03-26 09:34:08
● 2026-03-30 11:03:44
○ 2026-04-23 22:37:54

●A2606:4700:3030::ac43:85db2026-03-26 → 2026-04-23 · 4 obs

○ 2016-09-19 01:30:00
● 2026-03-26 09:34:08
○ 2026-03-30 11:03:44
● 2026-04-23 22:37:54

●A2606:4700:3031::6815:5d42026-03-26 → 2026-04-23 · 4 obs

○ 2016-09-19 01:30:00
● 2026-03-26 09:34:08
○ 2026-03-30 11:03:44
● 2026-04-23 22:37:54

○A2a06:98c1:3120::2026-03-30 → 2026-03-30 · 3 obs

○ 2026-03-26 09:34:08
● 2026-03-30 11:03:44
○ 2026-04-23 22:37:54

○A2a06:98c1:3121::2026-03-30 → 2026-03-30 · 3 obs

○ 2026-03-26 09:34:08
● 2026-03-30 11:03:44
○ 2026-04-23 22:37:54

○A69.46.84.522016-04-12 → 2016-04-12 · 3 obs

● 2016-04-12 02:38:54
○ 2016-09-19 01:30:00
○ 2026-04-23 22:37:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
hdszedu.com	damon.ns.cloudflare.com, ines.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.96

NS records: damon.ns.cloudflare.com, ines.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hdszedu.com (unsigned zone)

⏱️ Timing

Total: 114ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.133.219, 104.21.5.212`
AAAA	2	`2606:4700:3030::ac43:85db, 2606:4700:3031::6815:5d4`
NS	2	`damon.ns.cloudflare.com, ines.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`damon.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

hdszedu.com points to four IP numbers: 2606:4700:3030::ac43:85db, 2606:4700:3031::6815:5d4, 104.21.5.212 and 172.67.133.219.

Other host names including arkacadde.org, mxsa.com.cn, ok10001.com, duzcemetro.com and ghdzw.com share IP numbers with hdszedu.com.

Name Servers

hdszedu.com's delegation uses two name servers, damon.ns.cloudflare.com and ines.ns.cloudflare.com.

hdszedu.com shares the same name server setup as other domains, for example ifiacn.net, shreduaa.com, cxyxhs.com, peibinjie.com and ksbaihe.com.

hdszedu.com at least partially shares name servers with other domains, including mad-email.com, negociosreforma.com, 1466888.com, makeahelsinki.fi and gstapp.ca.

these name servers are commonly used together with guy.ns.cloudflare.com, dns1.ednsglobal.net and dns2.ednsglobal.net.

Host names with six IP numbers:

damon.ns.cloudflare.com points to: 2606:4700:58::adf5:3b60, 2803:f800:50::6ca2:c160, 2a06:98c1:50::ac40:2160, 108.162.193.96, 172.64.33.96 and 173.245.59.96.

ines.ns.cloudflare.com points to: 2606:4700:50::adf5:3aa4, 2803:f800:50::6ca2:c0a4, 2a06:98c1:50::ac40:20a4, 108.162.192.164, 172.64.32.164 and 173.245.58.164.

hdszedu.com - robtex.com

hdszedu.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

`hdszedu.com`

`com`