sjtfirma.dk

Records from scan: 2026-09-30 07:51:21 · 557ms total · last checked 2026-10-17 09:10 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sjtfirma.dk is a .dk domain served by 2 nameservers (henrik.ns.cloudflare.com, ursula.ns.cloudflare.com). It was registered on 19 February 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.40.254 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.stackmail.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 47ms

Nameserver	IP addresses	PTR	ASN / ISP
henrik.ns.cloudflare.com	108.162.195.105 162.159.44.105 172.64.35.105 2606:4700:58::a29f:2c69 2803:f800:50::6ca2:c369 2a06:98c1:50::ac40:2369	henrik.ns.cloudflare.com henrik.ns.cloudflare.com henrik.ns.cloudflare.com henrik.ns.cloudflare.com henrik.ns.cloudflare.com henrik.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ursula.ns.cloudflare.com	108.162.194.191 162.159.38.191 172.64.34.191 2606:4700:50::a29f:26bf 2803:f800:50::6ca2:c2bf 2a06:98c1:50::ac40:22bf	ursula.ns.cloudflare.com ursula.ns.cloudflare.com ursula.ns.cloudflare.com ursula.ns.cloudflare.com ursula.ns.cloudflare.com ursula.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 51ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.40.254	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.141.14	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx.stackmail.com	185.151.28.67	mx.stackmail.com	AS48254 20i Limited

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.141.14

🔷 AAAA Records (IPv6)#

2 records 47ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:28fe	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:8d0e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 37ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.40.254,172.67.141.14 ech=AEX+DQBBNAAgACBEVvV6qv+2EGSHksMVtzMtBb0W4uDonEFEC5F+QK8lNAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:28fe,2606:4700:3033::ac43:8d0e

📝 TXT Records#

1 records 174ms

TXT Record
v=spf1 a include:spf.stackmail.com a mx -all

✉️ SPF#

Policy	Record (sjtfirma.dk)
-all (hard fail)	v=spf1 a include:spf.stackmail.com a mx -all

📨 DMARC#

Policy	Record (_dmarc.sjtfirma.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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#

checked 2026-10-15 07:10:37

www	104.21.40.254 172.67.141.14 2606:4700:3033::6815:28fe 2606:4700:3033::ac43:8d0e (AS13335) (address records, no CNAME)
www vs bare domain	Same network sjtfirma.dk: 104.21.40.254 172.67.141.14 2606:4700:3033::6815:28fe 2606:4700:3033::ac43:8d0e (AS13335) www.sjtfirma.dk: 104.21.40.254 172.67.141.14 2606:4700:3033::6815:28fe 2606:4700:3033::ac43:8d0e (AS13335)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u114990284.wl035.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u114990284.wl035.sendgrid.net	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: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

66ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2415292372
Primary NS (MNAME)	henrik.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-09 08:39:21

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-02-19
Expires	2027-02-28 (133d)

📋 WHOIS#

⏱️ Lookup Timing#

47ms

51ms

39ms

AAAA

47ms

TXT

174ms

CAA

40ms

HTTPS

37ms

TLSA

158ms

SOA

0ms

MTA-STS

51ms

DNSSEC

66ms

SRV

61ms

Total

557ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 07:51:21 shown	557ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 14:17:05	2395ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-18 11:12:07	2216ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-24 18:49:47	955ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 11:37:54	2424ms	2 NS 1 A 1 MX	🔒 Secure