gumbo.dk

📜 Historical scan 2026-09-23 16:15:10 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gumbo.dk is a .dk domain served by 2 nameservers (ben.ns.cloudflare.com, ingrid.ns.cloudflare.com). It was registered on 28 November 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.15.79 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 40ms

Nameserver	IP addresses	PTR	ASN / ISP
ben.ns.cloudflare.com	108.162.193.103 172.64.33.103 173.245.59.103 2606:4700:58::adf5:3b67 2803:f800:50::6ca2:c167 2a06:98c1:50::ac40:2167	ben.ns.cloudflare.com ben.ns.cloudflare.com ben.ns.cloudflare.com ben.ns.cloudflare.com ben.ns.cloudflare.com ben.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ingrid.ns.cloudflare.com	108.162.192.165 172.64.32.165 173.245.58.165 2606:4700:50::adf5:3aa5 2803:f800:50::6ca2:c0a5 2a06:98c1:50::ac40:20a5	ingrid.ns.cloudflare.com ingrid.ns.cloudflare.com ingrid.ns.cloudflare.com ingrid.ns.cloudflare.com ingrid.ns.cloudflare.com ingrid.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 50ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.15.79	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.161.244	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 47ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.protonmail.ch	176.119.200.128 185.205.70.128 185.70.42.128	mail.protonmail.ch mail.protonmail.ch mail.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG
20	300s	mailsec.protonmail.ch	176.119.200.129 185.205.70.129 185.70.42.129	mailsec.protonmail.ch mailsec.protonmail.ch mailsec.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	100.88.164.3
🔶 Autoconfig	100.88.164.3

🔷 AAAA Records (IPv6)#

2 records 47ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:f4f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:a1f4	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 46ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.15.79,172.67.161.244 ech=AEX+DQBBHAAgACDnWMn0+i0V5WmO/VfYupDsp3htBVtCJUyRgIyyLolrVAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:f4f,2606:4700:3036::ac43:a1f4

📝 TXT Records#

2 records 214ms

TXT Record
protonmail-verification=4fd33062a4de31c62bf1c2117e29e2db30f55950
v=spf1 include:_spf.protonmail.ch ~all

✉️ SPF#

Policy	Record (gumbo.dk)
~all (soft fail)	v=spf1 include:_spf.protonmail.ch ~all

📨 DMARC#

Policy	Record (_dmarc.gumbo.dk)
p=quarantine	v=DMARC1; p=quarantine

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-15 12:15:21

www	104.21.15.79 172.67.161.244 2606:4700:3030::6815:f4f 2606:4700:3036::ac43:a1f4 (AS13335) (address records, no CNAME)
www vs bare domain	Same network gumbo.dk: 104.21.15.79 172.67.161.244 2606:4700:3030::6815:f4f 2606:4700:3036::ac43:a1f4 (AS13335) www.gumbo.dk: 104.21.15.79 172.67.161.244 2606:4700:3030::6815:f4f 2606:4700:3036::ac43:a1f4 (AS13335)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.gumbo.dk	3rrQpyB9-tl2TBVR9jw5nz3NWAtdCcgrzt9isRZBlj4
TXT	_acme-challenge.gumbo.dk	puZaNANbyqGiSdbw1FavpT_ti0gN5N7slAQK6t7c0iM

🔗 TLSA / DANE#

4 records 79ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…

🔐 DNSSEC#

138ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2415595560
Primary NS (MNAME)	ben.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-01 01:11:08

Field	Value
Registrar	Simply.com A/S
Registered	2023-11-28
Expires	2026-11-27 (39d)

📋 WHOIS#

⏱️ Lookup Timing#

40ms

50ms

47ms

AAAA

47ms

TXT

214ms

CAA

44ms

HTTPS

46ms

TLSA

79ms

SOA

0ms

MTA-STS

80ms

DNSSEC

138ms

SRV

87ms

Total

924ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 12:15:21	1981ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-03 19:17:31	507ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-03 01:18:05	2166ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-01 01:01:28	916ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-27 00:23:52	755ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-25 17:22:46	841ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-24 16:58:46	892ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-23 16:15:10 shown	924ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-17 16:47:10	1057ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-10 16:03:24	1316ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-31 13:52:21	3477ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-28 11:32:21	975ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-28 07:13:12	662ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-27 07:01:41	879ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-26 14:37:46	761ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-03 23:34:17	1181ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-26 21:36:29	9559ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-24 20:19:24	10148ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-10 16:23:08	33738ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-02 15:10:04	5675ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-26 09:41:00	2841ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 10:37:08	937ms	2 NS 2 A 2 MX	🔓 Insecure