`mail.dk-i.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:1d5c^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:94b7^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.29.92^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.148.183^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.29.92, 172.67.148.183
		IPv6 hints	2606:4700:3031::6815:1d5c, 2606:4700:3037::ac43:94b7
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=123, name=cloudflare-ech.com

`dk-i.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:1d5c^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:94b7^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.29.92^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.148.183^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`carter.ns.cloudflare.com` ⭐
NS	`ulla.ns.cloudflare.com`
MX	`linda.mx.cloudflare.net` ⭐
MX	`isaac.mx.cloudflare.net`⁽⁴¹⁾
MX	`amir.mx.cloudflare.net`⁽⁹⁹⁾
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.29.92, 172.67.148.183
		IPv6 hints	2606:4700:3031::6815:1d5c, 2606:4700:3037::ac43:94b7
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=123, name=cloudflare-ech.com
SOA	`carter.ns.cloudflare.com`dns@cloudflare.com serial=2409790582

PTR for

120.120.137.46.in-addr.arpa

MX for

double2.de

Previously MX for

dk-i.com

headex.de

dk-i.de

Same first word

mail.space

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mail.ilovecollege.info

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mail.site

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mail.tel

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mail.online

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DNS History

11 records (4 active, 7 former)

●A104.21.29.922026-02-22 → 2026-07-29 · 9 obs

○ 2016-12-29 21:29:12
● 2026-02-22 06:17:06
● 2026-02-23 12:03:30
○ 2026-03-07 13:30:40
● 2026-03-20 10:49:20
○ 2026-03-23 02:26:10
○ 2026-03-27 04:55:28
● 2026-04-13 23:07:56
● 2026-07-29 05:00:38

●A172.67.148.1832026-02-22 → 2026-07-29 · 9 obs

○A188.114.96.02026-03-07 → 2026-03-27 · 7 obs

○ 2026-02-23 12:03:30
● 2026-03-07 13:30:40
○ 2026-03-20 10:49:20
● 2026-03-23 02:26:10
● 2026-03-27 04:55:28
○ 2026-04-13 23:07:56
○ 2026-07-29 05:00:38

○A188.114.97.02026-03-07 → 2026-03-27 · 7 obs

○ 2026-02-23 12:03:30
● 2026-03-07 13:30:40
○ 2026-03-20 10:49:20
● 2026-03-23 02:26:10
● 2026-03-27 04:55:28
○ 2026-04-13 23:07:56
○ 2026-07-29 05:00:38

○A2606:4700:3030::6815:1d5c2026-02-22 → 2026-06-02 · 11 obs

○A2606:4700:3030::ac43:94b72026-02-22 → 2026-06-02 · 11 obs

●A2606:4700:3031::6815:1d5c2026-06-29 → 2026-07-29 · 3 obs

○ 2026-06-02 11:59:18
● 2026-06-29 22:35:06
● 2026-07-29 05:00:38

●A2606:4700:3037::ac43:94b72026-06-29 → 2026-07-29 · 3 obs

○ 2026-06-02 11:59:18
● 2026-06-29 22:35:06
● 2026-07-29 05:00:38

○A2a06:98c1:3120::2026-03-07 → 2026-03-27 · 7 obs

○ 2026-02-23 12:03:30
● 2026-03-07 13:30:40
○ 2026-03-20 10:49:20
● 2026-03-23 02:26:10
● 2026-03-27 04:55:28
○ 2026-04-13 23:07:56
○ 2026-07-29 05:00:38

○A2a06:98c1:3121::2026-03-07 → 2026-03-27 · 7 obs

○ 2026-02-23 12:03:30
● 2026-03-07 13:30:40
○ 2026-03-20 10:49:20
● 2026-03-23 02:26:10
● 2026-03-27 04:55:28
○ 2026-04-13 23:07:56
○ 2026-07-29 05:00:38

○A46.137.120.1202015-08-14 → 2016-12-29 · 4 obs

● 2015-08-14 17:00:48
● 2016-12-29 21:29:12
○ 2026-02-22 06:17:06
○ 2026-07-29 05:00:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, b.gtld-servers.net, k.gtld-servers.net, c.gtld-servers.net...	-
dk-i.com	ulla.ns.cloudflare.com, carter.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.233

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dk-i.com (unsigned zone)

⏱️ Timing

Total: 1101ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.148.183, 104.21.29.92`
AAAA	2	`2606:4700:3037::ac43:94b7, 2606:4700:3031::6815:1d5c`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

📌 Glue Records Collected

Total: 12

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

Analysis

Mail Server Role

mail.dk-i.com serves as a mail server for double2.de.

As mail servers, mail3.dk-i.com and mail.dk-i.com are regularly found together.

IP Addresses

mail.dk-i.com directs to four IP numbers, which are 104.21.29.92, 172.67.148.183, 2606:4700:3031::6815:1d5c and 2606:4700:3037::ac43:94b7.

Additional host names — topmed.com.br, thedarkknightmanual.com, adklaculinair.nl and two others — share IP numbers with mail.dk-i.com.

mail.dk-i.com - robtex.com

mail.dk-i.com

dk-i.com

PTR for

MX for

Previously MX for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Mail Server Role

IP Addresses

`mail.dk-i.com`

`dk-i.com`