sjfb.dk

📜 Historical scan 2026-09-13 00:58:29 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sjfb.dk is a .dk domain served by 3 nameservers (blue.foundationdns.com, blue.foundationdns.net, blue.foundationdns.org). It was registered on 16 January 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 141.101.90.96 is hosted by Cloudflare, Inc. (AS13335). The zone is DNSSEC-signed and validates, 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#

3 records 156ms

Nameserver	IP addresses	PTR	ASN / ISP
blue.foundationdns.com	108.162.198.1 162.159.60.1 172.64.40.1 2606:4700:57::6ca2:c601 2803:f800:52::a29f:3c01 2a06:98c1:56::ac40:2801	blue.foundationdns.com blue.foundationdns.com blue.foundationdns.com blue.foundationdns.com blue.foundationdns.com blue.foundationdns.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
blue.foundationdns.net	108.162.198.31 162.159.60.31 172.64.40.31 2606:4700:57::6ca2:c61f 2803:f800:52::a29f:3c1f 2a06:98c1:56::ac40:281f	blue.foundationdns.net blue.foundationdns.net blue.foundationdns.net blue.foundationdns.net blue.foundationdns.net blue.foundationdns.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
blue.foundationdns.org	108.162.198.61 162.159.60.61 172.64.40.61 2606:4700:57::6ca2:c63d 2803:f800:52::a29f:3c3d 2a06:98c1:56::ac40:283d	blue.foundationdns.org blue.foundationdns.org blue.foundationdns.org blue.foundationdns.org blue.foundationdns.org blue.foundationdns.org	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

4 records 112ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
141.101.90.96	300s	—	AS13335	Cloudflare, Inc.	141.101.90.0/24	—	—
141.101.90.97	300s	—	AS13335	Cloudflare, Inc.	141.101.90.0/24	—	—
141.101.90.98	300s	—	AS13335	Cloudflare, Inc.	141.101.90.0/24	—	—
141.101.90.99	300s	—	AS13335	Cloudflare, Inc.	141.101.90.0/24	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

4 records 151ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:98c1:3200::90:0	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3200:0:0:0:0:0/48	—	—
2a06:98c1:3200::90:1	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3200:0:0:0:0:0/48	—	—
2a06:98c1:3200::90:2	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3200:0:0:0:0:0/48	—	—
2a06:98c1:3200::90:3	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3200:0:0:0:0:0/48	—	—

🔐 HTTPS Records#

1 records 148ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=141.101.90.96,141.101.90.97,141.101.90.98,141.101.90.99 ech=AEX+DQBB/AAgACC6py3STpC8LIPPq6nlCSlZW4X8D+yZJ/BNf2TOi9lOJAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3200::90:0,2a06:98c1:3200::90:1,2a06:98c1:3200::90:2,2a06:98c1:3200::90:3

📝 TXT Records#

1 records 274ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (sjfb.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.sjfb.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

13 records 136ms

Flags	Tag	Value
0	iodef	mailto:sik@bankdata.dk
0	issue	comodoca.com
0	issue	digicert.com; cansignhttpexchanges=yes
0	issue	globalsign.com
0	issue	letsencrypt.org
0	issue	pki.goog; cansignhttpexchanges=yes
0	issue	ssl.com
0	issuewild	comodoca.com
0	issuewild	digicert.com; cansignhttpexchanges=yes
0	issuewild	globalsign.com
0	issuewild	letsencrypt.org
0	issuewild	pki.goog; cansignhttpexchanges=yes
0	issuewild	ssl.com

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 01:19:28

www	141.101.90.96 141.101.90.97 141.101.90.98 141.101.90.99 2a06:98c1:3200::90:0 2a06:98c1:3200::90:1 2a06:98c1:3200::90:2 2a06:98c1:3200::90:3 (AS13335) (address records, no CNAME)
www vs bare domain	Same network sjfb.dk: 141.101.90.96 141.101.90.97 141.101.90.98 141.101.90.99 (AS13335) www.sjfb.dk: 141.101.90.96 141.101.90.97 141.101.90.98 141.101.90.99 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

206ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2414347939
Primary NS (MNAME)	blue.foundationdns.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-08 01:29:14

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2025-01-16
Expires	2027-01-15 (86d)

📋 WHOIS#

⏱️ Lookup Timing#

156ms

112ms

145ms

AAAA

151ms

TXT

274ms

CAA

136ms

HTTPS

148ms

TLSA

127ms

SOA

0ms

MTA-STS

152ms

DNSSEC

206ms

SRV

150ms

Total

1232ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 01:19:27	618ms	3 NS 4 A 0 MX	🔒 Secure
2026-10-02 23:02:29	1035ms	3 NS 4 A 0 MX	🔒 Secure
2026-09-29 22:45:56	829ms	3 NS 4 A 0 MX	🔒 Secure
2026-09-13 00:58:29 shown	1232ms	3 NS 4 A 0 MX	🔒 Secure
2026-09-04 21:35:05	894ms	3 NS 4 A 0 MX	🔒 Secure
2026-08-15 19:21:54	1978ms	3 NS 4 A 0 MX	🔒 Secure
2026-08-10 00:25:03	1822ms	3 NS 4 A 0 MX	🔒 Secure
2026-07-23 02:41:08	1741ms	3 NS 4 A 0 MX	🔒 Secure
2026-07-09 03:36:07	2963ms	3 NS 4 A 0 MX	🔒 Secure
2026-06-29 03:48:52	1226ms	3 NS 4 A 0 MX	🔒 Secure
2026-06-24 22:22:30	3979ms	3 NS 4 A 0 MX	🔒 Secure
2026-06-22 03:01:04	6413ms	3 NS 4 A 0 MX	🔒 Secure
2026-06-21 05:15:07	924ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 03:56:11	2133ms	3 NS 4 A 0 MX	🔒 Secure