`mail.knowlance.de`

DNSSEC

⚠️ Not signed

`knowlance.de`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:152^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:80e8^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.1.82^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.128.232^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`aspen.ns.cloudflare.com` ⭐
NS	`kip.ns.cloudflare.com`
MX	`_dc-mx.4d351885162b.knowlance.de` ⭐
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.1.82, 172.67.128.232
		IPv6 hints	2606:4700:3032::6815:152, 2606:4700:3036::ac43:80e8
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=223, name=cloudflare-ech.com
SOA	`aspen.ns.cloudflare.com`dns@cloudflare.com serial=2407147002

Previously MX for

knowlance.de

Same first word

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DNS History

7 records (0 active, 7 former)

○A104.21.1.822026-06-22 → 2026-06-22 · 3 obs

○ 2016-04-22 04:21:14
● 2026-06-22 05:27:26
○ 2026-07-24 17:22:52

○A172.67.128.2322026-06-22 → 2026-06-22 · 3 obs

○ 2016-04-22 04:21:14
● 2026-06-22 05:27:26
○ 2026-07-24 17:22:52

○A2606:4700:3031::6815:1522026-06-22 → 2026-06-22 · 4 obs

○ 2016-04-22 04:21:14
● 2026-06-22 05:27:26
○ 2026-07-16 11:42:40
○ 2026-07-24 17:22:52

○A2606:4700:3032::6815:1522026-07-16 → 2026-07-16 · 3 obs

○ 2026-06-22 05:27:26
● 2026-07-16 11:42:40
○ 2026-07-24 17:22:52

○A2606:4700:3033::ac43:80e82026-06-22 → 2026-06-22 · 4 obs

○ 2016-04-22 04:21:14
● 2026-06-22 05:27:26
○ 2026-07-16 11:42:40
○ 2026-07-24 17:22:52

○A2606:4700:3036::ac43:80e82026-07-16 → 2026-07-16 · 3 obs

○ 2026-06-22 05:27:26
● 2026-07-16 11:42:40
○ 2026-07-24 17:22:52

○A78.46.80.472015-07-12 → 2016-04-22 · 4 obs

● 2015-07-12 03:06:54
● 2016-04-22 04:21:14
○ 2026-06-22 05:27:26
○ 2026-07-24 17:22:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, z.nic.de, f.nic.de	-
knowlance.de	aspen.ns.cloudflare.com, kip.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.109

NS records: aspen.ns.cloudflare.com, kip.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowlance.de (unsigned zone)

⏱️ Timing

Total: 4544ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.1.82, 172.67.128.232`
AAAA	2	`2606:4700:3036::ac43:80e8, 2606:4700:3032::6815:152`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

mail.knowlance.de - robtex.com