firstchairgroup.dk

📜 Historical scan 2026-09-22 13:41:03 · ← 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 40ms

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 32ms

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 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	firstchairgroup-dk.q-v1.mx.microsoft	2a01:111:f403:ca04::a 2a01:111:f403:ca21::10 2a01:111:f403:ca21::8 2a01:111:f403:ca48::12 52.101.185.24 52.101.209.31 52.101.68.10 52.101.68.12	mail-du0pr03cu00102.inbound.protection.outlook.com mail-matpr05cu00100.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db9pr02cu00204.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 → 40.104.116.56
🔶 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 153ms

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#

4 records 83ms

Service / Owner	Type	Cert association
SMTP _25._tcp.firstchairgroup-dk.q-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	C1AD7778796D20BCA65C889A26550211…
SMTP _25._tcp.firstchairgroup-dk.q-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	54883CC5F1849331E6BF5002C3129D20…
SMTP _25._tcp.firstchairgroup-dk.q-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	EA7A25255D111FC3CE4CB8FABE3ADF9C…
SMTP _25._tcp.firstchairgroup-dk.q-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	803F7447CC75B208DBCA042346F5D8DF…

🔐 DNSSEC#

73ms

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

🏷️ SOA#

0ms

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 (6d)

🔗 Same registrant#

8 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
envisionreklame.dk	DANDOMAIN A/S
firstchairstudios.dk	DANDOMAIN A/S
gorm-envision.dk	DANDOMAIN A/S
gxe.dk	DANDOMAIN A/S
monajuul.dk	Punktum dk A/S (direct)
uhc.dk	A/S SCANNET

📋 WHOIS#

⏱️ Lookup Timing#

40ms

32ms

33ms

AAAA

39ms

TXT

153ms

CAA

44ms

HTTPS

46ms

TLSA

83ms

SOA

0ms

MTA-STS

52ms

DNSSEC

73ms

SRV

48ms

Total

660ms

🕐 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 shown	660ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 18:10:16	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