theblueoffice.dk

📜 Historical scan 2026-06-21 17:50:37 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

theblueoffice.dk is a .dk domain served by 2 nameservers (ricardo.ns.cloudflare.com, ruth.ns.cloudflare.com). It was registered on 29 June 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.92.192 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 129ms

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 116ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.92.192	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.197.88	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 93ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.251.9.27 2a00:1450:4025:c01::1b	rc-in-f27.1e100.net rd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.211.26 2404:6800:4000:1025::1a	lcbomp-in-f26.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.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	alt3.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	192.178.230.26 2404:6800:400b:c01b::1a	yunrtab-in-f26.1e100.net yunrtab-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 210ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:5cc0	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:c558	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 99ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.92.192,172.67.197.88 ech=AEX+DQBBwAAgACBcatv0vcdu5GkpvPstOSLsHt4RtzmMTrUkgy4nfjAxUQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:5cc0,2606:4700:3033::ac43:c558

📝 TXT Records#

7 records 214ms

TXT Record
brevo-code:4110d4c3b8a1f42b3059b94b9d93043b
firebase=virtual-office-322da
google-site-verification=s4uoedzr2g9FVhixIsUOtx3ehBtZiRLarHu3BU_2Piw
sendinblue-site-verification=4997353
v=spf1 include:_spf.firebasemail.com ~all
v=spf1 include:_spf.google.com -all
v=spf1 include:mailgun.org ~all

✉️ SPF#

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (theblueoffice.dk)
~all (soft fail)	v=spf1 include:_spf.firebasemail.com ~all
-all (hard fail)	v=spf1 include:_spf.google.com -all
~all (soft fail)	v=spf1 include:mailgun.org ~all

📨 DMARC#

Policy	Record (_dmarc.theblueoffice.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 00:12:22

www	104.21.92.192 172.67.197.88 2606:4700:3032::ac43:c558 2606:4700:3037::6815:5cc0 (AS13335) (address records, no CNAME)
www vs bare domain	Same network theblueoffice.dk: 104.21.92.192 172.67.197.88 2606:4700:3032::ac43:c558 2606:4700:3037::6815:5cc0 (AS13335) www.theblueoffice.dk: 104.21.92.192 172.67.197.88 2606:4700:3032::ac43:c558 2606:4700:3037::6815:5cc0 (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: 4/10 · policy: ~all

error 3 SPF records: receivers must treat that as a permanent error (RFC 7208 §4.5)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

219ms

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

🏷️ SOA#

147ms

Field	Value
Serial	2403767990
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 2026-10-23 03:11:03

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2023-06-29
Expires	2027-06-28 (247d)

🔗 Same registrant#

12 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
blueoffice.dk	Punktum dk A/S (direct)
etilmeld.dk	Punktum dk A/S (direct)
gametrader.dk	Punktum dk A/S (direct)
insite.dk	Punktum dk A/S (direct)
iværksætterløbet.dk	Punktum dk A/S (direct)
mytown.dk	Punktum dk A/S (direct)
osys.dk	Punktum dk A/S (direct)
tabletopgaming.dk	Punktum dk A/S (direct)
warhammerhygge.dk	Punktum dk A/S (direct)
zonix.dk	Punktum dk A/S (direct)
zynaps.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

129ms

116ms

93ms

AAAA

210ms

TXT

214ms

CAA

132ms

HTTPS

99ms

TLSA

437ms

SOA

147ms

MTA-STS

204ms

DNSSEC

219ms

SRV

147ms

Total

1488ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 00:12:22	600ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-01 01:07:49	638ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-16 22:34:04	2424ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-15 07:19:00	2269ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-08 04:45:38	2294ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-25 11:25:36	823ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-16 20:50:37	1275ms	2 NS 2 A 5 MX	❓ Unknown
2026-07-07 19:42:37	1697ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-29 23:13:45	995ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-21 17:50:37 shown	1488ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-20 19:30:16	1099ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 04:47:00	3248ms	2 NS 2 A 5 MX	🔓 Insecure