classmanager.io - dns.ninja

`classmanager.io`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:20::681a:ca4^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::681a:da4^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::ac43:4765^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.12.164^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.13.164^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.71.101^{🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`arch.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b44^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arch.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c144^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`arch.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2144^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`arch.ns.cloudflare.com`
		A	108.162.193.68^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arch.ns.cloudflare.com`
		A	172.64.33.68^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arch.ns.cloudflare.com`
		A	173.245.59.68^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arch.ns.cloudflare.com`
NS	`hera.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aa2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hera.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0a2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`hera.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20a2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`hera.ns.cloudflare.com`
		A	108.162.192.162^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hera.ns.cloudflare.com`
		A	172.64.32.162^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hera.ns.cloudflare.com`
		A	173.245.58.162^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hera.ns.cloudflare.com`
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	104.26.12.164, 104.26.13.164, 172.67.71.101
		IPv6 hints	2606:4700:20::681a:ca4, 2606:4700:20::681a:da4, 2606:4700:20::ac43:4765
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=240, name=cloudflare-ech.com
SOA	`arch.ns.cloudflare.com`dns@cloudflare.com serial=2411230050

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐
	NS	`a2.nic.io`
	NS	`b0.nic.io`
	NS	`c0.nic.io`
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1786098342

Same first word

classmanager.academy

classmanager.com

classmanager.de

classmanager.io

DNS History

8 records (8 active, 0 former)

●NSarch.ns.cloudflare.com2026-06-23 → 2026-08-07 · 2 obs

● 2026-06-23 00:50:50
● 2026-08-07 11:15:20

●NShera.ns.cloudflare.com2026-06-23 → 2026-08-07 · 2 obs

● 2026-06-23 00:50:50
● 2026-08-07 11:15:20

●A104.26.12.1642026-06-23 → 2026-08-07 · 2 obs

● 2026-06-23 00:50:50
● 2026-08-07 11:15:20

●A104.26.13.1642026-06-23 → 2026-08-07 · 2 obs

● 2026-06-23 00:50:50
● 2026-08-07 11:15:20

●A172.67.71.1012026-06-23 → 2026-08-07 · 2 obs

● 2026-06-23 00:50:50
● 2026-08-07 11:15:20

●A2606:4700:20::681a:ca42026-06-23 → 2026-08-07 · 2 obs

● 2026-06-23 00:50:50
● 2026-08-07 11:15:20

●A2606:4700:20::681a:da42026-06-23 → 2026-08-07 · 2 obs

● 2026-06-23 00:50:50
● 2026-08-07 11:15:20

●A2606:4700:20::ac43:47652026-06-23 → 2026-08-07 · 2 obs

● 2026-06-23 00:50:50
● 2026-08-07 11:15:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io	-
classmanager.io	hera.ns.cloudflare.com, arch.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.68

NS records: hera.ns.cloudflare.com, arch.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1182ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`104.26.12.164, 172.67.71.101...`
AAAA	3	`2606:4700:20::681a:da4, 2606:4700:20::ac43:4765...`
NS	2	`arch.ns.cloudflare.com, hera.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`
SOA	1	`arch.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

With 6 IP addresses in total, classmanager.io resolves to 104.26.12.164, 104.26.13.164, 172.67.71.101 and 3 other.

Among the host names that share IP numbers with classmanager.io are www.littlesnake.com, mail.htcmania.com, heyitsfree.net and two others.

Name Servers

classmanager.io has two authoritative name servers — arch.ns.cloudflare.com and hera.ns.cloudflare.com.

classmanager.io has the same name server delegation as a number of other domains, such as sanjiyan.co.uk, sims4updates.net, sealedwithlove.com and two more.

classmanager.io shares at least some of its name servers with other domains, including odiabookbazar.com, gayyx.online, egomotos.com.br and two others.

These name servers are frequently paired with the name servers bart.ns.cloudflare.com and adel.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

arch.ns.cloudflare.com points to 108.162.193.68, 172.64.33.68, 173.245.59.68 and 3 other IP addresses.

hera.ns.cloudflare.com points to 108.162.192.162, 172.64.32.162, 173.245.58.162 and 3 other IP addresses.