schoolmann.dev - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`schoolmann.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:440f^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:b8db^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.68.15^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.184.219^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`rick.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b8b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rick.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c18b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rick.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:218b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rick.ns.cloudflare.com`
		A	108.162.193.139^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rick.ns.cloudflare.com`
		A	172.64.33.139^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rick.ns.cloudflare.com`
		A	173.245.59.139^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rick.ns.cloudflare.com`
NS	`roxy.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a8e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roxy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c08e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`roxy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:208e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`roxy.ns.cloudflare.com`
		A	108.162.192.142^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roxy.ns.cloudflare.com`
		A	172.64.32.142^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roxy.ns.cloudflare.com`
		A	173.245.58.142^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roxy.ns.cloudflare.com`
MX	`mail.protonmail.ch` ⭐
		A	176.119.200.128^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mail.protonmail.ch`
		A	185.70.42.128^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mail.protonmail.ch`
		A	185.205.70.128^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mail.protonmail.ch`
MX	`mailsec.protonmail.ch`⁽²⁰⁾
		A	176.119.200.129^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.70.42.129^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.205.70.129^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mailsec.protonmail.ch`
TXT	`protonmail-verification=eb89d135ebd6a3f80d7b9dbbe2dcbf5d55fa5290`
TXT	`v=spf1 include:_spf.protonmail.ch mx ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.68.15, 172.67.184.219
		IPv6 hints	2606:4700:3030::6815:440f, 2606:4700:3035::ac43:b8db
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=208, name=cloudflare-ech.com
SOA	`rick.ns.cloudflare.com`dns@cloudflare.com serial=2417020182

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

🔒 HSTS Preload (+subdomains)

Same first word

schoolmann.net

schoolmann.de

schoolmann.app

schoolmann.lima-city.de

schoolmann.dev

schoolmann.com

Similar names

mannschool.org

Previous names

Next names

DNS History

12 records (8 active, 4 former)

●NSrick.ns.cloudflare.com2026-08-31 → 2026-10-18 · 2 obs

● 2026-08-31 02:58:14
● 2026-10-18 22:55:24

●NSroxy.ns.cloudflare.com2026-08-31 → 2026-10-18 · 2 obs

● 2026-08-31 02:58:14
● 2026-10-18 22:55:24

●MXmail.protonmail.ch2026-08-31 → 2026-10-18 · 2 obs

● 2026-08-31 02:58:14
● 2026-10-18 22:55:24

●MXmailsec.protonmail.ch2026-08-31 → 2026-10-18 · 2 obs

● 2026-08-31 02:58:14
● 2026-10-18 22:55:24

●A104.21.68.152026-09-12 → 2026-10-18 · 3 obs

○ 2026-08-31 02:58:14
● 2026-09-12 09:38:46
● 2026-10-18 22:55:24

●A172.67.184.2192026-09-12 → 2026-10-18 · 3 obs

○ 2026-08-31 02:58:14
● 2026-09-12 09:38:46
● 2026-10-18 22:55:24

○A188.114.96.02026-08-31 → 2026-08-31 · 3 obs

● 2026-08-31 02:58:14
○ 2026-09-12 09:38:46
○ 2026-10-18 22:55:24

○A188.114.97.02026-08-31 → 2026-08-31 · 3 obs

● 2026-08-31 02:58:14
○ 2026-09-12 09:38:46
○ 2026-10-18 22:55:24

●A2606:4700:3030::6815:440f2026-09-12 → 2026-10-18 · 3 obs

○ 2026-08-31 02:58:14
● 2026-09-12 09:38:46
● 2026-10-18 22:55:24

●A2606:4700:3035::ac43:b8db2026-09-12 → 2026-10-18 · 3 obs

○ 2026-08-31 02:58:14
● 2026-09-12 09:38:46
● 2026-10-18 22:55:24

○A2a06:98c1:3120::2026-08-31 → 2026-08-31 · 3 obs

● 2026-08-31 02:58:14
○ 2026-09-12 09:38:46
○ 2026-10-18 22:55:24

○A2a06:98c1:3121::2026-08-31 → 2026-08-31 · 3 obs

● 2026-08-31 02:58:14
○ 2026-09-12 09:38:46
○ 2026-10-18 22:55:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	-
schoolmann.dev	rick.ns.cloudflare.com, roxy.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.139

NS records: rick.ns.cloudflare.com, roxy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)

⏱️ Timing

Total: 1515ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.184.219, 104.21.68.15`
AAAA	2	`2606:4700:3030::6815:440f, 2606:4700:3035::ac43:b8db`
NS	2	`rick.ns.cloudflare.com, roxy.ns.cloudflare.com`
MX	2	`mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20)`
TXT	2	`protonmail-verification=eb89d135ebd6a3f8, v=spf1 include:_spf.protonmail.ch mx ~al`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`rick.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

schoolmann.dev points to the four IP addresses 104.21.68.15, 172.67.184.219, 2606:4700:3030::6815:440f and 2606:4700:3035::ac43:b8db.

Additional host names — bayarbo.com, memberlitetheme.com, ckcbetka.com and two others — share IP numbers with schoolmann.dev.

Name Servers

DNS delegation for schoolmann.dev points to two name servers: rick.ns.cloudflare.com and roxy.ns.cloudflare.com.

schoolmann.dev shares its name server setup with other domains, including xavierjuan2010.workers.dev, dreamxiu.com, implavizyon.com and two others.

At least some of schoolmann.dev's name servers are shared with other domains, for example goal1122.top, pp6609a.cc, demo-pupuk-ifri.pages.dev and two more.

These name servers tend to be deployed in combination with the name servers kate.ns.cloudflare.com and lara.ns.cloudflare.com.

Host names with 6 IP numbers:

rick.ns.cloudflare.com has IP addresses 108.162.193.139, 172.64.33.139 and 173.245.59.139, plus 3 other.

roxy.ns.cloudflare.com has IP addresses 108.162.192.142, 172.64.32.142 and 173.245.58.142, plus 3 other.

Mail Servers

schoolmann.dev has two mail servers: mail.protonmail.ch and mailsec.protonmail.ch.

schoolmann.dev shares the same mail server setup as other domains, including pugwash.org, bridgemusic.app, livvara.com and two others.

schoolmann.dev shares mail servers — at least in part — with other domains, including supercarburant.com, heartlandllc.org, 4orion.net and two others.

The hosts mail.protonmail.ch and mailsec.protonmail.ch both resolve to three IP numbers: mail.protonmail.ch to 176.119.200.128, 185.70.42.128 and 185.205.70.128, and mailsec.protonmail.ch to 176.119.200.129, 185.70.42.129 and 185.205.70.129.