firstchairgroup.dk

📜 Historical scan 2026-06-23 18:10:16 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

firstchairgroup.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 26 October 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.19.191.28 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by firstchairgroup-dk.q-v1.mx.microsoft. 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 185ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 210ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.19.191.28	3600s	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—

📧 MX Records#

1 records 273ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	firstchairgroup-dk.q-v1.mx.microsoft	2a01:111:f403:ca04::d 2a01:111:f403:ca09::3 2a01:111:f403:ca09::8 2a01:111:f403:ca09::d 52.101.68.27 52.101.68.29 52.101.73.153 52.101.73.4	mail-db6pr03cu00105.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 52.98.149.152
🔶 Autoconfig	autoconfig-mf.dandomain.dk → 212.237.249.54

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 619ms

TXT Record
MS=ms57489269
v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net -all

✉️ SPF#

Policy	Record (firstchairgroup.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net -all

📨 DMARC#

Policy	Record (_dmarc.firstchairgroup.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 2026-10-07 20:35:48

www	104.19.191.28 (AS13335) (address records, no CNAME)
www vs bare domain	Same network firstchairgroup.dk: 104.19.191.28 (AS13335) www.firstchairgroup.dk: 104.19.191.28 (AS13335)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
k1	dkim.mcsv.net	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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

6 records 280ms

Service / Owner	Type	Cert association
SMTP _25._tcp.firstchairgroup-dk.q-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	38D895F5105BC2545822C17A2444F4B0…
SMTP _25._tcp.firstchairgroup-dk.q-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	133086C7B822371A4A3304F1661A7880…
SMTP _25._tcp.firstchairgroup-dk.q-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	C495D9E40F7E625BE22F83CC64305182…
SMTP _25._tcp.firstchairgroup-dk.q-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	6EBFF927297A5B3AAF5EAE672252C36A…
SMTP _25._tcp.firstchairgroup-dk.q-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	A6C267923B26A4A9617EDA73D8DB4FBC…
SMTP _25._tcp.firstchairgroup-dk.q-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	5F88694615E4C61686E106B84C3338C6…

🔐 DNSSEC#

380ms

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

🏷️ SOA#

292ms

Field	Value
Serial	2024111104
Primary NS (MNAME)	ns.dandomain.dk
Responsible (RNAME)	hostmaster@dandomain.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-12 04:50:38

Field	Value
Registrar	DANDOMAIN A/S
Registered	2017-10-26
Expires	2026-10-31 (7d)

🔗 Same registrant#

4 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
envision-design.dk	DANDOMAIN A/S
envisionblog.dk	DANDOMAIN A/S
firstchairstudios.dk	DANDOMAIN A/S
gxe.dk	DANDOMAIN A/S

📋 WHOIS#

⏱️ Lookup Timing#

185ms

210ms

273ms

AAAA

210ms

TXT

619ms

CAA

308ms

HTTPS

361ms

TLSA

280ms

SOA

292ms

MTA-STS

304ms

DNSSEC

380ms

SRV

372ms

Total

3534ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-27 18:54:11	624ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-22 13:41:03	660ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 18:10:16 shown	3534ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 12:47:06	1188ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 09:31:21	1006ms	2 NS 1 A 1 MX	🔒 Secure