`zackschool.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:85e3^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:1955^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.25.85^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.133.227^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`meiling.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26fe^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`meiling.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2fe^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`meiling.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22fe^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`meiling.ns.cloudflare.com`
		A	108.162.194.254^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`meiling.ns.cloudflare.com`
		A	162.159.38.254^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`meiling.ns.cloudflare.com`
		A	172.64.34.254^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`meiling.ns.cloudflare.com`
NS	`nash.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bd1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1d1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nash.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21d1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nash.ns.cloudflare.com`
		A	108.162.193.209^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
		A	172.64.33.209^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
		A	173.245.59.209^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.25.85, 172.67.133.227
		IPv6 hints	2606:4700:3034::ac43:85e3, 2606:4700:3036::6815:1955
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=103, name=cloudflare-ech.com
SOA	`meiling.ns.cloudflare.com`dns@cloudflare.com serial=2404406435

`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=1783781302

rank #771123 globally
rank #334781 in the tld

Same first word

zackschool.com

DNS History

20 records (6 active, 14 former)

○NSdns1.uni5.net2015-06-22 → 2015-06-22 · 3 obs

● 2015-06-22 16:04:52
○ 2015-11-02 06:26:10
○ 2026-07-11 14:57:04

○NSdns1.zimel.co2016-09-16 → 2016-09-16 · 4 obs

○ 2015-11-02 06:26:10
● 2016-09-16 23:26:50
○ 2026-05-22 07:23:28
○ 2026-07-11 14:57:04

○NSdns2.uni5.net2015-06-22 → 2015-06-22 · 3 obs

● 2015-06-22 16:04:52
○ 2015-11-02 06:26:10
○ 2026-07-11 14:57:04

○NSdns2.zimel.co2016-09-16 → 2016-09-16 · 4 obs

○ 2015-11-02 06:26:10
● 2016-09-16 23:26:50
○ 2026-05-22 07:23:28
○ 2026-07-11 14:57:04

○NSdns3.zimel.co2016-09-16 → 2016-09-16 · 4 obs

○ 2015-11-02 06:26:10
● 2016-09-16 23:26:50
○ 2026-05-22 07:23:28
○ 2026-07-11 14:57:04

○NSdns4.zimel.co2016-09-16 → 2016-09-16 · 4 obs

○ 2015-11-02 06:26:10
● 2016-09-16 23:26:50
○ 2026-05-22 07:23:28
○ 2026-07-11 14:57:04

●NSmeiling.ns.cloudflare.com2026-05-22 → 2026-07-11 · 3 obs

○ 2016-09-16 23:26:50
● 2026-05-22 07:23:28
● 2026-07-11 14:57:04

●NSnash.ns.cloudflare.com2026-05-22 → 2026-07-11 · 3 obs

○ 2016-09-16 23:26:50
● 2026-05-22 07:23:28
● 2026-07-11 14:57:04

○MXmx-vip-01-farm74.uni5.net2016-09-16 → 2016-09-16 · 3 obs

● 2016-09-16 23:26:50
○ 2026-05-22 07:23:28
○ 2026-07-11 14:57:04

○MXmx-vip-02-farm74.uni5.net2016-09-16 → 2016-09-16 · 3 obs

● 2016-09-16 23:26:50
○ 2026-05-22 07:23:28
○ 2026-07-11 14:57:04

●A104.21.25.852026-05-22 → 2026-07-11 · 5 obs

○ 2016-09-16 23:26:50
● 2026-05-22 07:23:28
● 2026-06-10 07:20:28
○ 2026-06-11 18:28:46
● 2026-07-11 14:57:04

●A172.67.133.2272026-05-22 → 2026-07-11 · 5 obs

○ 2016-09-16 23:26:50
● 2026-05-22 07:23:28
● 2026-06-10 07:20:28
○ 2026-06-11 18:28:46
● 2026-07-11 14:57:04

○A188.114.96.02026-06-11 → 2026-06-11 · 3 obs

○ 2026-06-10 07:20:28
● 2026-06-11 18:28:46
○ 2026-07-11 14:57:04

○A188.114.97.02026-06-11 → 2026-06-11 · 3 obs

○ 2026-06-10 07:20:28
● 2026-06-11 18:28:46
○ 2026-07-11 14:57:04

○A189.38.88.1292015-06-22 → 2015-06-22 · 3 obs

● 2015-06-22 16:04:52
○ 2015-11-02 06:26:10
○ 2026-07-11 14:57:04

○A199.34.228.742016-09-16 → 2016-09-16 · 4 obs

○ 2015-11-02 06:26:10
● 2016-09-16 23:26:50
○ 2026-05-22 07:23:28
○ 2026-07-11 14:57:04

●A2606:4700:3034::ac43:85e32026-05-22 → 2026-07-11 · 5 obs

○ 2016-09-16 23:26:50
● 2026-05-22 07:23:28
● 2026-06-10 07:20:28
○ 2026-06-11 18:28:46
● 2026-07-11 14:57:04

●A2606:4700:3036::6815:19552026-05-22 → 2026-07-11 · 5 obs

○ 2016-09-16 23:26:50
● 2026-05-22 07:23:28
● 2026-06-10 07:20:28
○ 2026-06-11 18:28:46
● 2026-07-11 14:57:04

○A2a06:98c1:3120::2026-06-11 → 2026-06-11 · 3 obs

○ 2026-06-10 07:20:28
● 2026-06-11 18:28:46
○ 2026-07-11 14:57:04

○A2a06:98c1:3121::2026-06-11 → 2026-06-11 · 3 obs

○ 2026-06-10 07:20:28
● 2026-06-11 18:28:46
○ 2026-07-11 14:57:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
zackschool.com	nash.ns.cloudflare.com, meiling.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.254

NS records: nash.ns.cloudflare.com, meiling.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zackschool.com (unsigned zone)

⏱️ Timing

Total: 114ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.25.85, 172.67.133.227`
AAAA	2	`2606:4700:3034::ac43:85e3, 2606:4700:3036::6815:1955`
NS	2	`meiling.ns.cloudflare.com, nash.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`meiling.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

zackschool.com directs to four IP numbers, which are 104.21.25.85, 172.67.133.227, 2606:4700:3034::ac43:85e3 and 2606:4700:3036::6815:1955.

nikhilp.org, www.gonewiththegrins.com.cdn.cloudflare.net, xgxxzx.com plus two other host names have IP numbers in common with zackschool.com.

Name Servers

zackschool.com is delegated to two name servers: meiling.ns.cloudflare.com and nash.ns.cloudflare.com.

The name server configuration of zackschool.com is shared with other domains, for instance ynjipiao.com, bst-arabic.com, yc-showcase.com and two others.

There is at least partial name server overlap between zackschool.com and other domains — cdxdhjx.com, nextlevel1.click, pinco383.win and two more among them.

These name servers tend to appear in combination with the name servers vasilii.ns.cloudflare.com, donna.ns.cloudflare.com, aspen.ns.cloudflare.com and michael.ns.cloudflare.com.

Hosts with 6 IP addresses each:

meiling.ns.cloudflare.com resolves to 108.162.194.254, 162.159.38.254, 172.64.34.254 and 3 other IP addresses.

nash.ns.cloudflare.com resolves to 108.162.193.209, 172.64.33.209, 173.245.59.209 and 3 other IP addresses.

zackschool.com - robtex.com

zackschool.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

`zackschool.com`

`com`