blueoffice.dk

📜 Historical scan 2026-10-07 10:07:52 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

blueoffice.dk is a .dk domain served by 2 nameservers (ricardo.ns.cloudflare.com, ruth.ns.cloudflare.com). It was registered on 1 May 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.83.206 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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 37ms

Nameserver	IP addresses	PTR	ASN / ISP
ricardo.ns.cloudflare.com	108.162.195.211 162.159.44.211 172.64.35.211 2606:4700:58::a29f:2cd3 2803:f800:50::6ca2:c3d3 2a06:98c1:50::ac40:23d3	ricardo.ns.cloudflare.com ricardo.ns.cloudflare.com ricardo.ns.cloudflare.com ricardo.ns.cloudflare.com ricardo.ns.cloudflare.com ricardo.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ruth.ns.cloudflare.com	108.162.192.143 172.64.32.143 173.245.58.143 2606:4700:50::adf5:3a8f 2803:f800:50::6ca2:c08f 2a06:98c1:50::ac40:208f	ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.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 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.83.206	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.181.77	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.251.1.26 2a00:1450:4010:c07::1b 2a00:1450:4010:c07::1b	lb-in-f26.1e100.net lf-in-x1b.1e100.net lf-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 42ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3036::6815:53ce	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:b54d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 39ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.83.206,172.67.181.77 ech=AEX+DQBBhQAgACCJy62yk4NXP3ahV3taUiGCca++NEhTCOlKiT+n+mOiKQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::6815:53ce,2606:4700:3037::ac43:b54d

📝 TXT Records#

6 records 156ms

TXT Record
brevo-code:2b88a6e49cbe7effcf0ec0c37427f4d2
facebook-domain-verification=2006r6gl133096sp4jwjq6l9ivm7mg
google-site-verification=D75UkIllIRTqGa_HlovzA0mzVO-AR1t6oc2P6K_HTiQ
google-site-verification=FWu1oWoGzL4TB5BLycYkOgn1TKZTVVH6bHCQph4Jk2I
google-site-verification=oMW9RLC2dKzjxe4gnNCXRhMWEIRzS1hRj-58J3y18i4
v=spf1 include:_spf.google.com include:mailgun.org include:mail.zendesk.com ~all

✉️ SPF#

Policy	Record (blueoffice.dk)
~all (soft fail)	v=spf1 include:_spf.google.com include:mailgun.org include:mail.zendesk.com ~all

📨 DMARC#

Policy	Record (_dmarc.blueoffice.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com

📬 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 2026-10-08 05:29:15

www	104.21.83.206 172.67.181.77 2606:4700:3036::6815:53ce 2606:4700:3037::ac43:b54d (AS13335) (address records, no CNAME)
www vs bare domain	Same network blueoffice.dk: 104.21.83.206 172.67.181.77 2606:4700:3036::6815:53ce 2606:4700:3037::ac43:b54d (AS13335) www.blueoffice.dk: 104.21.83.206 172.67.181.77 2606:4700:3036::6815:53ce 2606:4700:3037::ac43:b54d (AS13335)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
mail	—	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: 7/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

110ms

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

🏷️ SOA#

43ms

Field	Value
Serial	2416806867
Primary NS (MNAME)	ricardo.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-16 17:32:28

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2016-05-01
Expires	2027-05-31 (226d)

🔗 Same registrant#

3 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).

Domain	Registrar
blueberry.dk	DANDOMAIN A/S
tabletopgaming.dk	Punktum dk A/S (direct)
zonix.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

37ms

42ms

44ms

AAAA

42ms

TXT

156ms

CAA

38ms

HTTPS

39ms

TLSA

144ms

SOA

43ms

MTA-STS

58ms

DNSSEC

110ms

SRV

60ms

Total

1229ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 05:29:15	634ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-07 10:07:52 shown	1229ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-04 09:19:29	585ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-20 06:26:15	1787ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-10 14:10:57	5900ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-20 12:38:08	1481ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-02 00:19:55	1241ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-16 15:20:08	5702ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-16 15:10:11	2076ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-16 15:07:07	528ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-16 15:00:41	641ms	2 NS 2 A 5 MX	🔓 Insecure