`mail.cooclasses.com`

DNSSEC

⚠️ Not signed

`cooclasses.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:8c37^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:28ef^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.40.239^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.140.55^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`chase.ns.cloudflare.com` ⭐
NS	`ziggy.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.40.239, 172.67.140.55
		IPv6 hints	2606:4700:3030::ac43:8c37, 2606:4700:3034::6815:28ef
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=26, name=cloudflare-ech.com
SOA	`chase.ns.cloudflare.com`dns@cloudflare.com serial=2399041790

Previously MX for

cooclasses.com

Same first word

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DNS History

1 record (0 active, 1 former)

○A85.13.151.1692015-07-08 → 2016-05-01 · 3 obs

● 2015-07-08 19:12:02
● 2016-05-01 19:17:30
○ 2026-04-12 05:45:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cooclasses.com	ziggy.ns.cloudflare.com, chase.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.156

NS records: ziggy.ns.cloudflare.com, chase.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cooclasses.com (unsigned zone)

⏱️ Timing

Total: 197ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 12

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

mail.cooclasses.com - robtex.com