`help.classdo.com`

DNSSEC

⚠️ Not signed

`classdo.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::ac43:c1e0^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:3c4f^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.60.79^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.193.224^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`matteo.ns.cloudflare.com` ⭐
NS	`ulla.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
MX	`alt1.aspmx.l.google.com`⁽⁵⁰⁾
MX	`alt2.aspmx.l.google.com`⁽⁵⁰⁾
MX	`aspmx2.googlemail.com`⁽⁸⁰⁾
MX	`aspmx3.googlemail.com`⁽⁸⁰⁾
TXT	`facebook-domain-verification=947bw06wpf4gn826rfni6ojzt7c87e`
TXT	`google-site-verification=9gk7Rf6L5ItZHP9cB8Fs5qj3pKAeI70dAfduycb-r38`
TXT	`google-site-verification=lD68Rqw9ak1WGCi4sxwMpYxefjUUHZtYeoM8m4eboi8`
TXT	`spf2.0/pra include:google.com include:classdo.com include:amazonses.com inclu...`
TXT	`v=spf1 include:aspmx.googlemail.com include:amazonses.com include:mail.zendes...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.60.79, 172.67.193.224
		IPv6 hints	2606:4700:3035::ac43:c1e0, 2606:4700:3037::6815:3c4f
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=173, name=cloudflare-ech.com
SOA	`matteo.ns.cloudflare.com`dns@cloudflare.com serial=2409414471

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DNS History

1 record (0 active, 1 former)

○CNAMEcname.super.so2026-03-13 → 2026-03-13 · 2 obs

● 2026-03-13 13:28:28
○ 2026-07-23 15:37:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
classdo.com	ulla.ns.cloudflare.com, matteo.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.233

NS records: ulla.ns.cloudflare.com, matteo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classdo.com (unsigned zone)

⏱️ Timing

Total: 80ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 12

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

help.classdo.com - dns.ninja

help.classdo.com

classdo.com