gubi.dk

📜 Historical scan 2026-09-30 12:29:30 · ← 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 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 90ms

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 86ms

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 97ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	gubi-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca09::22 2a01:111:f403:ca09::28 2a01:111:f403:ca48::10 52.101.103.137 52.101.185.21 52.101.209.31 52.101.91.159	mail-db4pr02cu00204.inbound.protection.outlook.com mail-am7pr02cu00302.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-miypr05cu00100.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-matpr04cu00207.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 → 40.104.116.40

🔷 AAAA Records (IPv6)#

2 records 109ms

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 91ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.86.18,172.67.214.12 ech=AEX+DQBBXQAgACAMpYldYzQ9l7qOXBLrrdhR4BcdHHeNfu4qhqehUSG4NQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d60c,2606:4700:3033::6815:5612

🔌 SRV Records#

1 records 155ms

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

📝 TXT Records#

7 records 448ms

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 2026-10-09 05:43:10

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#

284ms

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

🏷️ SOA#

90ms

Field	Value
Serial	2416235063
Primary NS (MNAME)	cartman.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

90ms

86ms

97ms

AAAA

109ms

TXT

448ms

CAA

100ms

HTTPS

91ms

TLSA

622ms

SOA

90ms

MTA-STS

131ms

DNSSEC

284ms

SRV

155ms

Total

2598ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
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 shown	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	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