chrestensen.dk DNS records

🖥️ Nameservers2 records 143ms

Nameserver	IP addresses	PTR	ASN / ISP
hazel.ns.cloudflare.com	108.162.194.157 162.159.38.157 172.64.34.157 2606:4700:50::a29f:269d 2803:f800:50::6ca2:c29d 2a06:98c1:50::ac40:229d	hazel.ns.cloudflare.com hazel.ns.cloudflare.com hazel.ns.cloudflare.com hazel.ns.cloudflare.com hazel.ns.cloudflare.com hazel.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
jobs.ns.cloudflare.com	108.162.193.183 172.64.33.183 173.245.59.183 2606:4700:58::adf5:3bb7 2803:f800:50::6ca2:c1b7 2a06:98c1:50::ac40:21b7	jobs.ns.cloudflare.com jobs.ns.cloudflare.com jobs.ns.cloudflare.com jobs.ns.cloudflare.com jobs.ns.cloudflare.com jobs.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records

🌍

No A records found

📧 MX Records4 records 98ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.mxfilter.net	23.147.8.11	mx1.mxfilter.net	AS46824 NameCrane LLC
10	300s	mx2.mxfilter.net	162.244.95.10	mx2.mxfilter.net	AS965 Webhosting Holdings LLC
20	300s	mx3.mxfilter.net	23.147.8.11	mx1.mxfilter.net	AS46824 NameCrane LLC
20	300s	mx4.mxfilter.net	162.244.95.10	mx2.mxfilter.net	AS965 Webhosting Holdings LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	eu1.workspace.org → 193.108.130.81

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 219ms

TXT Record
v=spf1 include:_spf.workspace.org -all

✉️ SPF

Policy	Record (chrestensen.dk)
-all (hard fail)	v=spf1 include:_spf.workspace.org -all

📨 DMARC

Policy	Record (_dmarc.chrestensen.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:9d22d8c2c3f2433b96dbf90887bf9be3@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

✗ No CAA records — any CA may issue certificates

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.chrestensen.dk	3OjopMb7m9oCh0Jo4Ly_YGUt2LSu02_53mjz80cyIgA
TXT	_acme-challenge.chrestensen.dk	gN3vE_lbzYVicMitwEPaxLCT2wklfuscbTIP9gRQp-A

🔗 TLSA / DANE

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

🔐 DNSSEC188ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	2407287650
Primary NS (MNAME)	hazel.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

143ms

A

78ms

MX

98ms

AAAA

85ms

TXT

219ms

CAA

81ms

HTTPS

94ms

TLSA

623ms

SOA

0ms

MTA-STS

69ms

DNSSEC

188ms

SRV

108ms

Total

3856ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-22 02:03:08	11619ms	2 NS 0 A 4 MX	🔓 Insecure	View
2026-08-19 23:11:52	4393ms	2 NS 0 A 4 MX	🔓 Insecure	View
2026-08-16 15:56:06	13022ms	2 NS 0 A 4 MX	🔓 Insecure	View
2026-07-01 03:45:17	2021ms	2 NS 0 A 4 MX	🔓 Insecure	View
2026-06-19 23:14:27	1223ms	2 NS 0 A 4 MX	🔓 Insecure	View
2026-06-19 08:24:52	3856ms	2 NS 0 A 4 MX	🔓 Insecure	View
2026-06-18 17:25:52	1490ms	2 NS 0 A 4 MX	🔓 Insecure	View
2026-06-16 20:36:07	3393ms	2 NS 0 A 4 MX	🔓 Insecure	View