`mail.co4.dk`

DNSSEC

⚠️ Not signed

`co4.dk`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:9752^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:c19^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.12.25^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.151.82^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`evelyn.ns.cloudflare.com` ⭐
NS	`sid.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.12.25, 172.67.151.82
		IPv6 hints	2606:4700:3030::ac43:9752, 2606:4700:3036::6815:c19
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=226, name=cloudflare-ech.com
SOA	`evelyn.ns.cloudflare.com`dns@cloudflare.com serial=2408573022

Previously MX for

co4.dk

Same first word

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DNS History

5 records (0 active, 5 former)

○A144.76.115.202026-06-12 → 2026-06-12 · 4 obs

○ 2016-09-15 02:47:20
● 2026-06-12 03:51:46
○ 2026-07-01 20:51:00
○ 2026-07-27 00:07:12

○A178.63.26.1532026-07-01 → 2026-07-01 · 4 obs

○ 2026-06-12 03:51:46
● 2026-07-01 20:51:00
○ 2026-07-21 14:27:14
○ 2026-07-27 00:07:12

○A195.184.55.652015-08-23 → 2016-09-15 · 4 obs

● 2015-08-23 10:12:26
● 2016-09-15 02:47:20
○ 2026-06-12 03:51:46
○ 2026-07-27 00:07:12

○A2a01:4f8:141:4284::22026-07-01 → 2026-07-01 · 4 obs

○ 2026-06-12 03:51:46
● 2026-07-01 20:51:00
○ 2026-07-21 14:27:14
○ 2026-07-27 00:07:12

○CNAMEmail3.co3.dk2015-08-23 → 2016-09-15 · 4 obs

● 2015-08-23 10:12:26
● 2016-09-15 02:47:20
○ 2026-06-12 03:51:46
○ 2026-07-27 00:07:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	b.nic.dk, h.nic.dk, t.nic.dk, c.nic.dk...	-
co4.dk	sid.ns.cloudflare.com, evelyn.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.213

NS records: sid.ns.cloudflare.com, evelyn.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for co4.dk (unsigned zone)

⏱️ Timing

Total: 498ms | Queries: -

📄 Records

Type	Count	Sample Data

mail.co4.dk - robtex.com

mail.co4.dk

co4.dk