jacobdev.dk

📜 Historical scan 2026-09-30 11:04:20 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jacobdev.dk is a .dk domain served by 2 nameservers (bjorn.ns.cloudflare.com, brynne.ns.cloudflare.com). It was registered on 13 May 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.70.200 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx01.mail.icloud.com, mx02.mail.icloud.com. 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#

2 records 28ms

Nameserver	IP addresses	PTR	ASN / ISP
bjorn.ns.cloudflare.com	108.162.195.98 162.159.44.98 172.64.35.98 2606:4700:58::a29f:2c62 2803:f800:50::6ca2:c362 2a06:98c1:50::ac40:2362	bjorn.ns.cloudflare.com bjorn.ns.cloudflare.com bjorn.ns.cloudflare.com bjorn.ns.cloudflare.com bjorn.ns.cloudflare.com bjorn.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
brynne.ns.cloudflare.com	108.162.194.65 162.159.38.65 172.64.34.65 2606:4700:50::a29f:2641 2803:f800:50::6ca2:c241 2a06:98c1:50::ac40:2241	brynne.ns.cloudflare.com brynne.ns.cloudflare.com brynne.ns.cloudflare.com brynne.ns.cloudflare.com brynne.ns.cloudflare.com brynne.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 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.70.200	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.138.240	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx01.mail.icloud.com	17.42.251.62 17.42.251.62 17.56.9.31 17.57.152.5 17.57.152.5 17.57.152.5 17.57.154.33 17.57.155.25 17.57.156.30	mx3.mail.icloud.com mx01.mail.icloud.com mx01.mail.icloud.com smtp1.ic4-privaterelay.appleid.com mx01.mail.icloud.com ic4-privaterelay.appleid.com mx01.mail.icloud.com mx01.mail.icloud.com mx01.mail.icloud.com	AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc.
10	300s	mx02.mail.icloud.com	17.156.200.28 17.42.251.62 17.42.251.62 17.56.9.31 17.57.152.5 17.57.152.5 17.57.152.5 17.57.155.25 17.57.156.30	— mx01.mail.icloud.com mx3.mail.icloud.com mx01.mail.icloud.com smtp1.ic4-privaterelay.appleid.com mx01.mail.icloud.com ic4-privaterelay.appleid.com mx01.mail.icloud.com mx01.mail.icloud.com	AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.70.200
🔶 Autoconfig	104.21.70.200

🔷 AAAA Records (IPv6)#

2 records 37ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:8af0	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::6815:46c8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 34ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.70.200,172.67.138.240 ech=AEX+DQBBgQAgACCRKpEw7Dan0Hdrwr7Y6aWdIRl8VviRfpMXwj+ia1lpJwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:8af0,2606:4700:3031::6815:46c8

📝 TXT Records#

3 records 176ms

TXT Record
apple-domain=rkS0PZ8fgxh0E6tB
google-site-verification=9FhsAGN9dl3RanxXXjgMrW8C9BdbJORrkqqYkBwxM1k
v=spf1 include:icloud.com ~all

✉️ SPF#

Policy	Record (jacobdev.dk)
~all (soft fail)	v=spf1 include:icloud.com ~all

📨 DMARC#

Policy	Record (_dmarc.jacobdev.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:d14a00e6eaef4a0482ddc2474cc57732@dmarc-reports.cloudflare.net

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

10 records 32ms

Flags	Tag	Value
0	issue	comodoca.com
0	issue	digicert.com; cansignhttpexchanges=yes
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	letsencrypt.org
0	issuewild	pki.goog; cansignhttpexchanges=yes
0	issuewild	ssl.com

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-17 18:02:27

www	104.21.70.200 172.67.138.240 2606:4700:3030::ac43:8af0 2606:4700:3031::6815:46c8 (AS13335) (address records, no CNAME)
www vs bare domain	Same network jacobdev.dk: 104.21.70.200 172.67.138.240 2606:4700:3030::ac43:8af0 2606:4700:3031::6815:46c8 (AS13335) www.jacobdev.dk: 104.21.70.200 172.67.138.240 2606:4700:3030::ac43:8af0 2606:4700:3031::6815:46c8 (AS13335)
Wildcard	Yes: any name under the zone resolves
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: 5/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

56ms

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

🏷️ SOA#

52ms

Field	Value
Serial	2414910053
Primary NS (MNAME)	bjorn.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-17 18:30:55

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2024-05-13
Expires	2027-05-12 (204d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

28ms

34ms

30ms

AAAA

37ms

TXT

176ms

CAA

32ms

HTTPS

34ms

TLSA

116ms

SOA

52ms

MTA-STS

57ms

DNSSEC

56ms

SRV

62ms

Total

805ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 18:02:27	1652ms	2 NS 2 A 2 MX	🔒 Secure
2026-10-09 04:27:38	812ms	2 NS 2 A 2 MX	🔒 Secure
2026-10-08 06:06:25	683ms	2 NS 2 A 2 MX	🔒 Secure
2026-10-04 11:14:32	763ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-30 11:04:20 shown	805ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-30 06:24:37	819ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-27 07:58:56	3155ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-20 01:13:50	1432ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-12 23:26:52	1782ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-11 10:38:01	1692ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-10 02:45:32	787ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-26 08:59:38	3089ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-18 23:15:42	9974ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-17 17:19:27	1615ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-25 03:25:58	2858ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-20 12:22:51	3377ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-16 18:59:45	1389ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-04 22:14:47	3913ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-30 18:49:32	902ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-25 10:13:28	1432ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-21 12:26:03	3709ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-20 16:30:28	2797ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-17 15:30:20	1569ms	2 NS 2 A 2 MX	🔒 Secure