bluecollar.dk

📜 Historical scan 2026-10-08 22:17:39 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bluecollar.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 13 August 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 116.202.193.56 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by bluecollar-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 31ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
116.202.193.56	600s	vip01.azehosting.net	AS24940	Hetzner Online GmbH	116.202.0.0/15	🇩🇪 Germany	Falkenstein

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	bluecollar-dk.mail.protection.outlook.com	52.101.103.143 52.101.73.123 52.101.73.126 52.101.73.155	mail-miypr03cu00107.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-am7pr02cu00203.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.149.136

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 53ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 148ms

TXT Record
MS=ms15236919
v=spf1 ip4:87.51.196.180 ip4:83.151.144.20 ip4:23.83.212.19 ip4:185.221.37.133 ip4:49.12.83.45 ip4:162.55.4.188 include:spf.protection.outlook.com include:spf.azehosting.net include:spf.recman.no -all

✉️ SPF#

Policy	Record (bluecollar.dk)
-all (hard fail)	v=spf1 ip4:87.51.196.180 ip4:83.151.144.20 ip4:23.83.212.19 ip4:185.221.37.133 ip4:49.12.83.45 ip4:162.55.4.188 include:spf.protection.outlook.com include:spf.azehosting.net include:spf.recman.no -all

📨 DMARC#

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

📬 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 2026-10-14 15:41:32

www CNAME	bluecollar.dk (all on bluecollar.dk) → 116.202.193.56 (AS24940)
www vs bare domain	Same network bluecollar.dk: 116.202.193.56 (AS24940) www.bluecollar.dk: 116.202.193.56 (AS24940)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-bluecollar-dk._domainkey.tdch1037062.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-bluecollar-dk._domainkey.tdch1037062.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: 6/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

112ms

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

🏷️ SOA#

40ms

Field	Value
Serial	2026100801
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-10 01:52:08

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2008-08-13
Expires	2032-08-31 (2143d)

📋 WHOIS#

⏱️ Lookup Timing#

31ms

38ms

AAAA

26ms

TXT

148ms

CAA

38ms

HTTPS

45ms

TLSA

666ms

SOA

40ms

MTA-STS

48ms

DNSSEC

112ms

SRV

53ms

Total

1290ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 15:41:32	1276ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-10 11:40:50	1126ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-08 22:17:39 shown	1290ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 20:19:07	675ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 01:20:23	616ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 11:10:52	1273ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-21 00:49:29	941ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-19 09:10:31	2848ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 12:04:47	1190ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 06:14:04	1144ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-19 21:25:05	916ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 15:10:55	586ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 15:06:48	2283ms	2 NS 1 A 1 MX	⚠️ Bogus
2026-06-16 15:01:11	2670ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 15:00:24	626ms	2 NS 1 A 1 MX	🔒 Secure