gubi.dk

📜 Historical scan 2026-09-21 15:36:51 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gubi.dk is a .dk domain served by 2 nameservers (cartman.ns.cloudflare.com, kenia.ns.cloudflare.com). It was registered on 18 June 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.86.18 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by gubi-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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 99ms

Nameserver	IP addresses	PTR	ASN / ISP
cartman.ns.cloudflare.com	108.162.195.219 162.159.44.219 172.64.35.219 2606:4700:58::a29f:2cdb 2803:f800:50::6ca2:c3db 2a06:98c1:50::ac40:23db	cartman.ns.cloudflare.com cartman.ns.cloudflare.com cartman.ns.cloudflare.com cartman.ns.cloudflare.com cartman.ns.cloudflare.com cartman.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
kenia.ns.cloudflare.com	108.162.194.93 162.159.38.93 172.64.34.93 2606:4700:50::a29f:265d 2803:f800:50::6ca2:c25d 2a06:98c1:50::ac40:225d	kenia.ns.cloudflare.com kenia.ns.cloudflare.com kenia.ns.cloudflare.com kenia.ns.cloudflare.com kenia.ns.cloudflare.com kenia.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 139ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.86.18	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.214.12	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 128ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	gubi-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::9 2a01:111:f403:ca38::a 2a01:111:f403:ca3c::8 52.101.103.162 52.101.68.10 52.101.68.18 52.101.73.123	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-zrxpr05cu00100.inbound.protection.outlook.com mail-miypr03cu00202.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.99.157.8

🔷 AAAA Records (IPv6)#

2 records 126ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:d60c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::6815:5612	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 189ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.86.18,172.67.214.12 ech=AEX+DQBBZQAgACDNxwjkD4tRCDFss/Ah5CsKb+eG18EhhEkdPDPtEVXsbAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d60c,2606:4700:3033::6815:5612

🔌 SRV Records#

1 records 237ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

7 records 288ms

TXT Record
apple-domain-verification=16RvRRzgyarOzFGo
dropbox-domain-verification=3ghy3t5ef28k
google-site-verification=bqsLePPqCgCG4mahfASvdAfB7XXk3xowc5WQ9wnLQpY
openai-domain-verification=dv-duFtkB4V2TsMN0O6LyaBGydf
rhino_accounts=401252455e1549ae9f58735cf5e49114
smartsheet-site-validation=gDrBa1dMSWM9L52j13xM29-s3HKcjRqw
v=spf1 include:spf1.gubi.dk include:spf2.gubi.dk -all

✉️ SPF#

Policy	Record (gubi.dk)
-all (hard fail)	v=spf1 include:spf1.gubi.dk include:spf2.gubi.dk -all

📨 DMARC#

Policy	Record (_dmarc.gubi.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email; fo=1

📬 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 2026-10-18 16:20:36

www	104.21.86.18 172.67.214.12 2606:4700:3032::ac43:d60c 2606:4700:3033::6815:5612 (AS13335) (address records, no CNAME)
www vs bare domain	Same network gubi.dk: 104.21.86.18 172.67.214.12 2606:4700:3032::ac43:d60c 2606:4700:3033::6815:5612 (AS13335) www.gubi.dk: 104.21.86.18 172.67.214.12 2606:4700:3032::ac43:d60c 2606:4700:3033::6815:5612 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-gubi-dk._domainkey.gubidk.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

220ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2414881711
Primary NS (MNAME)	cartman.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-18 16:43:06

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-06-18
Expires	2032-06-30 (2081d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

99ms

139ms

128ms

AAAA

126ms

TXT

288ms

CAA

102ms

HTTPS

189ms

TLSA

275ms

SOA

0ms

MTA-STS

99ms

DNSSEC

220ms

SRV

237ms

Total

2063ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-18 16:20:36	1245ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-09 05:43:10	1598ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-30 18:34:04	817ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-30 12:29:30	2598ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-26 11:59:45	1248ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-24 03:01:36	947ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-21 15:36:51 shown	2063ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-12 20:29:12	1076ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-06 17:54:57	1308ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-29 15:43:47	1772ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-07 03:03:34	11212ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-29 09:32:19	4039ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-23 12:27:02	2922ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-14 04:40:39	2470ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-26 12:14:12	1365ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-23 09:06:09	3200ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 10:07:33	4026ms	2 NS 2 A 1 MX	🔒 Secure