jakobsternberg.dk DNS records

🖥️ Nameservers2 records 244ms

Nameserver	IP addresses	PTR	ASN / ISP
marissa.ns.cloudflare.com	108.162.194.114 162.159.38.114 172.64.34.114 2606:4700:50::a29f:2672 2803:f800:50::6ca2:c272 2a06:98c1:50::ac40:2272	marissa.ns.cloudflare.com marissa.ns.cloudflare.com marissa.ns.cloudflare.com marissa.ns.cloudflare.com marissa.ns.cloudflare.com marissa.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
piotr.ns.cloudflare.com	108.162.193.222 172.64.33.222 173.245.59.222 2606:4700:58::adf5:3bde 2803:f800:50::6ca2:c1de 2a06:98c1:50::ac40:21de	piotr.ns.cloudflare.com piotr.ns.cloudflare.com piotr.ns.cloudflare.com piotr.ns.cloudflare.com piotr.ns.cloudflare.com piotr.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 227ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.72.182	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.153.216	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 205ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx.simply.com	94.231.106.20	mx.simply.com	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	172.67.153.216
🔶 Autoconfig	172.67.153.216

🔷 AAAA Records (IPv6)2 records 225ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:99d8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:48b6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 259ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.72.182,172.67.153.216 ech=AEX+DQBBGgAgACCrpHxmwpQU1mqIn6lusy3tzi5P6Lc/vkH6PCIkdGFFLQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:99d8,2606:4700:3036::6815:48b6

📝 TXT Records1 records 670ms

TXT Record
v=spf1 include:spf.simply.com -all

✉️ SPF

Policy	Record (jakobsternberg.dk)
-all (hard fail)	v=spf1 include:spf.simply.com -all

📨 DMARC

✗ No DMARC record — mail spoofing not restricted

📬 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

🔗 TLSA / DANE2 records 530ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	A9D603AF4D7ED6B9246B4B68500CD6F2…
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	97A3BA009F39C761BFFB6574340E8138…

🔐 DNSSEC422ms

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

🏷️ SOA0ms

Field	Value
Serial	2412340158
Primary NS (MNAME)	marissa.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

244ms

A

227ms

MX

205ms

AAAA

225ms

TXT

670ms

CAA

273ms

HTTPS

259ms

TLSA

530ms

SOA

0ms

MTA-STS

295ms

DNSSEC

422ms

SRV

330ms

Total

7399ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-16 10:02:13	7399ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-30 15:11:58	987ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-29 02:51:19	1036ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-28 00:06:52	910ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-19 05:11:17	980ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-18 07:11:28	2970ms	2 NS 2 A 1 MX	🔓 Insecure	View