cgb.dk

📜 Historical scan 2026-09-25 13:58:04 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cgb.dk is a .dk domain served by 2 nameservers (aiden.ns.cloudflare.com, angela.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.73.37 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by cgb-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 188ms

Nameserver	IP addresses	PTR	ASN / ISP
aiden.ns.cloudflare.com	108.162.193.55 172.64.33.55 173.245.59.55 2606:4700:58::adf5:3b37 2803:f800:50::6ca2:c137 2a06:98c1:50::ac40:2137	aiden.ns.cloudflare.com aiden.ns.cloudflare.com aiden.ns.cloudflare.com aiden.ns.cloudflare.com aiden.ns.cloudflare.com aiden.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
angela.ns.cloudflare.com	108.162.192.65 172.64.32.65 173.245.58.65 2606:4700:50::adf5:3a41 2803:f800:50::6ca2:c041 2a06:98c1:50::ac40:2041	angela.ns.cloudflare.com angela.ns.cloudflare.com angela.ns.cloudflare.com angela.ns.cloudflare.com angela.ns.cloudflare.com angela.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 138ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.73.37	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.157.116	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 144ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cgb-dk.mail.protection.outlook.com	2a01:111:f403:ca04::e 2a01:111:f403:ca09::22 2a01:111:f403:ca09::a 2a01:111:f403:ca48::a 52.101.103.140 52.101.185.114 52.101.209.31 52.101.68.29	mail-db8pr02cu00106.inbound.protection.outlook.com mail-am7pr02cu00302.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-dbapr03cu00105.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 120ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:4925	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:9d74	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 122ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.73.37,172.67.157.116 ech=AEX+DQBBvgAgACCgK+e0XOJUMplJ3+UeBBMm3OZomg2UuZCpw9MaObm3GAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:4925,2606:4700:3036::ac43:9d74

🔌 SRV Records#

1 records 207ms

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

📝 TXT Records#

2 records 343ms

TXT Record
apple-domain-verification=mnOsnczmCGNIUxF5
v=spf1 include:spf.protection.outlook.com include:_spf.wpcloud.com -all

✉️ SPF#

Policy	Record (cgb.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:_spf.wpcloud.com -all

📨 DMARC#

Policy	Record (_dmarc.cgb.dk)
p=quarantine	v=DMARC1; p=quarantine; adkim=s; aspf=s; rua=mailto:933c79e08c0947ddba84b2954dabb368@dmarc-reports.cloudflare.net,mailto:postmaster@cgb.dk; ruf=mailto:postmaster@cgb.dk; fo=1;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

10 records 125ms

Flags	Tag	Value
0	issue	comodoca.com
0	issue	digicert.com; cansignhttpexchanges=yes
0	issue	letsencrypt.org
0	issue	pki.goog; cansignhttpexchanges=yes
0	issue	ssl.com
0	issuewild	comodoca.com
0	issuewild	digicert.com; cansignhttpexchanges=yes
0	issuewild	letsencrypt.org
0	issuewild	pki.goog; cansignhttpexchanges=yes
0	issuewild	ssl.com

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 16:14:58

www	104.21.73.37 172.67.157.116 2606:4700:3035::6815:4925 2606:4700:3036::ac43:9d74 (AS13335) (address records, no CNAME)
www vs bare domain	Same network cgb.dk: 104.21.73.37 172.67.157.116 2606:4700:3035::6815:4925 2606:4700:3036::ac43:9d74 (AS13335) www.cgb.dk: 104.21.73.37 172.67.157.116 2606:4700:3035::6815:4925 2606:4700:3036::ac43:9d74 (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
BIMI	v=BIMI1;l=https://cgb.dk/cgb-logo.svg;

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-cgb-dk._domainkey.cgbeloxering.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-cgb-dk._domainkey.cgbeloxering.onmicrosoft.com	RSA · ~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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

267ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2415814607
Primary NS (MNAME)	aiden.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#

188ms

138ms

144ms

AAAA

120ms

TXT

343ms

CAA

125ms

HTTPS

122ms

TLSA

689ms

SOA

0ms

MTA-STS

198ms

DNSSEC

267ms

SRV

207ms

Total

2420ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 14:58:37	1281ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-26 14:09:49	1241ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-25 13:58:04 shown	2420ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-03 19:28:12	2223ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-27 23:55:08	1533ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-10 07:20:39	4080ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-07 07:58:18	2458ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-29 09:57:50	3929ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-19 02:09:07	3221ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-16 21:30:22	3662ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-04 23:35:33	2706ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-26 18:13:04	1198ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-26 15:55:37	1711ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-20 15:13:45	2781ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-16 20:15:31	1501ms	2 NS 2 A 1 MX	🔒 Secure