dahlstrom-byg.dk DNS records

🖥️ Nameservers2 records 122ms

Nameserver	IP addresses	PTR	ASN / ISP
desi.ns.cloudflare.com	108.162.192.96 172.64.32.96 173.245.58.96 2606:4700:50::adf5:3a60 2803:f800:50::6ca2:c060 2a06:98c1:50::ac40:2060	desi.ns.cloudflare.com desi.ns.cloudflare.com desi.ns.cloudflare.com desi.ns.cloudflare.com desi.ns.cloudflare.com desi.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
jim.ns.cloudflare.com	108.162.193.125 172.64.33.125 173.245.59.125 2606:4700:58::adf5:3b7d 2803:f800:50::6ca2:c17d 2a06:98c1:50::ac40:217d	jim.ns.cloudflare.com jim.ns.cloudflare.com jim.ns.cloudflare.com jim.ns.cloudflare.com jim.ns.cloudflare.com jim.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 Records1 records 118ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	dahlstrombyg-dk02c.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::c 2a01:111:f403:ca09::4 2a01:111:f403:ca09::7 52.101.68.21 52.101.73.1 52.101.73.16 52.101.73.19	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24
🔶 Autoconfig	93.191.156.239

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 633ms

TXT Record
MS=ms98012918
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (dahlstrom-byg.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.dahlstrom-byg.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:766a925660f443b39bb14c6bf0538fa0@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

🔗 TLSA / DANE

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

🔐 DNSSEC488ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	2413586786
Primary NS (MNAME)	desi.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

122ms

A

118ms

MX

118ms

AAAA

119ms

TXT

633ms

CAA

125ms

HTTPS

112ms

TLSA

875ms

SOA

0ms

MTA-STS

286ms

DNSSEC

488ms

SRV

253ms

Total

3025ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 17:42:03	3025ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-27 23:55:31	1404ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-19 04:42:41	15819ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-26 02:44:24	2675ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-03 10:40:07	944ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-21 03:32:40	690ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-16 23:43:25	545ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-16 23:40:28	513ms	2 NS 0 A 1 MX	🔒 Secure	View