`ischoolsystems.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:1f37^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:af02^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.31.55^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.175.2^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jo.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3aac^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ac^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ac^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jo.ns.cloudflare.com`
		A	108.162.192.172^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
		A	172.64.32.172^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
		A	173.245.58.172^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
NS	`nick.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bd5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nick.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1d5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nick.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21d5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nick.ns.cloudflare.com`
		A	108.162.193.213^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nick.ns.cloudflare.com`
		A	172.64.33.213^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nick.ns.cloudflare.com`
		A	173.245.59.213^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nick.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.31.55, 172.67.175.2
		IPv6 hints	2606:4700:3033::6815:1f37, 2606:4700:3035::ac43:af02
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=108, name=cloudflare-ech.com
SOA	`jo.ns.cloudflare.com`dns@cloudflare.com serial=2403321391

`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=1778426721

⚠️ On DNS blocklist: tif

Subdomains

www.ischoolsystems.com

Same first word

ischoolsystems.com

DNS History

11 records (6 active, 5 former)

●NSjo.ns.cloudflare.com2026-04-29 → 2026-05-10 · 3 obs

○ 2017-06-19 19:37:30
● 2026-04-29 07:20:32
● 2026-05-10 15:36:12

●NSnick.ns.cloudflare.com2026-04-29 → 2026-05-10 · 3 obs

○ 2017-06-19 19:37:30
● 2026-04-29 07:20:32
● 2026-05-10 15:36:12

○NSns.nayatel.com2016-11-25 → 2017-06-19 · 4 obs

● 2016-11-25 04:38:04
● 2017-06-19 19:37:30
○ 2026-04-29 07:20:32
○ 2026-05-10 15:36:12

○NSns3.nayatel.com2016-11-25 → 2017-06-19 · 4 obs

● 2016-11-25 04:38:04
● 2017-06-19 19:37:30
○ 2026-04-29 07:20:32
○ 2026-05-10 15:36:12

○MXmail.ischoolsystems.com2016-11-25 → 2017-06-19 · 4 obs

● 2016-11-25 04:38:04
● 2017-06-19 19:37:30
○ 2026-04-29 07:20:32
○ 2026-05-10 15:36:12

○MXsmtp4.nayatel.com2016-11-25 → 2017-06-19 · 4 obs

● 2016-11-25 04:38:04
● 2017-06-19 19:37:30
○ 2026-04-29 07:20:32
○ 2026-05-10 15:36:12

●A104.21.31.552026-04-29 → 2026-05-10 · 3 obs

○ 2017-06-19 19:37:30
● 2026-04-29 07:20:32
● 2026-05-10 15:36:12

●A172.67.175.22026-04-29 → 2026-05-10 · 3 obs

○ 2017-06-19 19:37:30
● 2026-04-29 07:20:32
● 2026-05-10 15:36:12

○A203.82.48.2182016-11-25 → 2017-06-19 · 4 obs

● 2016-11-25 04:38:04
● 2017-06-19 19:37:30
○ 2026-04-29 07:20:32
○ 2026-05-10 15:36:12

●A2606:4700:3033::6815:1f372026-04-29 → 2026-05-10 · 3 obs

○ 2017-06-19 19:37:30
● 2026-04-29 07:20:32
● 2026-05-10 15:36:12

●A2606:4700:3035::ac43:af022026-04-29 → 2026-05-10 · 3 obs

○ 2017-06-19 19:37:30
● 2026-04-29 07:20:32
● 2026-05-10 15:36:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
ischoolsystems.com	nick.ns.cloudflare.com, jo.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:173.245.58.172

NS records: nick.ns.cloudflare.com, jo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ischoolsystems.com (unsigned zone)

⏱️ Timing

Total: 360ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.175.2, 104.21.31.55`
AAAA	2	`2606:4700:3035::ac43:af02, 2606:4700:3033::6815:1f37`
NS	2	`jo.ns.cloudflare.com, nick.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jo.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The parent of www.ischoolsystems.com is ischoolsystems.com.

IP Addresses

ischoolsystems.com maps to four IP numbers: 2606:4700:3033::6815:1f37, 2606:4700:3035::ac43:af02, 104.21.31.55 and 172.67.175.2.

Other host names such as fortunevault.us, ya.rmheshc.shop, demoslotoyunlarioyna1.top, itxiuli.com and www.(0x706f726e)odiva.de share IPs with ischoolsystems.com.

Name Servers

Two name servers jo.ns.cloudflare.com and nick.ns.cloudflare.com handle the delegation for ischoolsystems.com.

ischoolsystems.com shares the same name server setup as other domains, for example fileginkgohub.com, filemastergrid.com, filesandwichrobot.sbs, hyperdatamesh4.cyou and filecheesecake.com.

ischoolsystems.com at least partially shares name servers with other domains, for example burgersettlement.com, newbernenergysavers.com, jgmzxy.com, maximumlinux.com and gnarlyguides.com.

these name servers are commonly used alongside lauryn.ns.cloudflare.com name servers.

Host names with six IP numbers:

jo.ns.cloudflare.com points to 2606:4700:50::adf5:3aac, 2803:f800:50::6ca2:c0ac, 2a06:98c1:50::ac40:20ac, 108.162.192.172, 172.64.32.172 and 173.245.58.172.

nick.ns.cloudflare.com points to 2606:4700:58::adf5:3bd5, 2803:f800:50::6ca2:c1d5, 2a06:98c1:50::ac40:21d5, 108.162.193.213, 172.64.33.213 and 173.245.59.213.

ischoolsystems.com - robtex.com