zstudy.net - dns.ninja

`zstudy.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::6815:535d^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:dcf1^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.83.93^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.220.241^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`bob.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b68^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c168^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bob.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2168^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bob.ns.cloudflare.com`
		A	108.162.193.104^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	172.64.33.104^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	173.245.59.104^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
NS	`mona.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ace^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mona.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ce^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mona.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ce^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mona.ns.cloudflare.com`
		A	108.162.192.206^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mona.ns.cloudflare.com`
		A	172.64.32.206^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mona.ns.cloudflare.com`
		A	173.245.58.206^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mona.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.83.93, 172.67.220.241
		IPv6 hints	2606:4700:3036::6815:535d, 2606:4700:3037::ac43:dcf1
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=89, name=cloudflare-ech.com
SOA	`bob.ns.cloudflare.com`dns@cloudflare.com serial=2409071991

`net`

	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=1785020812

Same first word

zstudy.co

zstudy.com

zstudy.net

Similar names

szduty.com

DNS History

15 records (6 active, 9 former)

●NSbob.ns.cloudflare.com2026-03-23 → 2026-07-25 · 3 obs

○ 2018-01-15 05:06:48
● 2026-03-23 14:57:14
● 2026-07-25 23:18:42

●NSmona.ns.cloudflare.com2026-03-23 → 2026-07-25 · 3 obs

○ 2018-01-15 05:06:48
● 2026-03-23 14:57:14
● 2026-07-25 23:18:42

○NSns11.xincache.com2015-06-30 → 2016-05-02 · 4 obs

● 2015-06-30 05:41:26
● 2016-05-02 04:58:58
○ 2017-01-08 06:55:58
○ 2026-07-25 23:18:42

○NSns12.xincache.com2015-06-30 → 2016-05-02 · 4 obs

● 2015-06-30 05:41:26
● 2016-05-02 04:58:58
○ 2017-01-08 06:55:58
○ 2026-07-25 23:18:42

○NSns19.xincache.com2017-01-08 → 2018-01-15 · 5 obs

○ 2016-05-02 04:58:58
● 2017-01-08 06:55:58
● 2018-01-15 05:06:48
○ 2026-03-23 14:57:14
○ 2026-07-25 23:18:42

○NSns20.xincache.com2017-01-08 → 2018-01-15 · 5 obs

○ 2016-05-02 04:58:58
● 2017-01-08 06:55:58
● 2018-01-15 05:06:48
○ 2026-03-23 14:57:14
○ 2026-07-25 23:18:42

○NSophelia.ns.cloudflare.com2026-03-23 → 2026-07-25 · 2 obs

○ 2026-03-23 14:57:14
○ 2026-07-25 23:18:42

○NSthaddeus.ns.cloudflare.com2026-03-23 → 2026-07-25 · 2 obs

○ 2026-03-23 14:57:14
○ 2026-07-25 23:18:42

○MXmail.edu-tesla.com2026-03-23 → 2026-07-25 · 2 obs

○ 2026-03-23 14:57:14
○ 2026-07-25 23:18:42

●A104.21.83.932026-03-23 → 2026-07-25 · 2 obs

● 2026-03-23 14:57:14
● 2026-07-25 23:18:42

●A172.67.220.2412026-03-23 → 2026-07-25 · 2 obs

● 2026-03-23 14:57:14
● 2026-07-25 23:18:42

○A2606:4700:3030::6815:535d2026-03-23 → 2026-03-23 · 3 obs

● 2026-03-23 14:57:14
○ 2026-07-01 05:58:32
○ 2026-07-25 23:18:42

○A2606:4700:3035::ac43:dcf12026-03-23 → 2026-03-23 · 3 obs

● 2026-03-23 14:57:14
○ 2026-07-01 05:58:32
○ 2026-07-25 23:18:42

●A2606:4700:3036::6815:535d2026-07-01 → 2026-07-25 · 3 obs

○ 2026-03-23 14:57:14
● 2026-07-01 05:58:32
● 2026-07-25 23:18:42

●A2606:4700:3037::ac43:dcf12026-07-01 → 2026-07-25 · 3 obs

○ 2026-03-23 14:57:14
● 2026-07-01 05:58:32
● 2026-07-25 23:18:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
zstudy.net	bob.ns.cloudflare.com, mona.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.104

NS records: bob.ns.cloudflare.com, mona.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zstudy.net (unsigned zone)

⏱️ Timing

Total: 2376ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.220.241, 104.21.83.93`
AAAA	2	`2606:4700:3036::6815:535d, 2606:4700:3037::ac43:dcf1`
NS	2	`bob.ns.cloudflare.com, mona.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`bob.ns.cloudflare.com dns.cloudflare.com`

Analysis

IP Addresses

zstudy.net points to the four IP addresses 104.21.83.93, 172.67.220.241, 2606:4700:3036::6815:535d and 2606:4700:3037::ac43:dcf1.

Additional host names — mesothelioma-lawyers-new90852.empirewiki.com, salida.com, wbaamp.info and two others — share IP numbers with zstudy.net.

Name Servers

The NS records for zstudy.net delegate to bob.ns.cloudflare.com and mona.ns.cloudflare.com.

zstudy.net shares its name server setup with other domains, including junonetwork.io, zycw.net, isymkj.net and two others.

The name servers of zstudy.net overlap at least partially with those of other domains — among them mnkontrakt.pl, wolfrealtyteam.com, vexus.pw and two more.

These name servers commonly appear in combination with the name servers nola.ns.cloudflare.com.

Host names with 6 IP numbers:

bob.ns.cloudflare.com maps to 108.162.193.104, 172.64.33.104, 173.245.59.104 and 3 additional IP addresses.

mona.ns.cloudflare.com maps to 108.162.192.206, 172.64.32.206, 173.245.58.206 and 3 additional IP addresses.