techpreview.dk DNS records

🖥️ Nameservers2 records 33ms

Nameserver	IP addresses	PTR	ASN / ISP
deborah.ns.cloudflare.com	108.162.194.111 162.159.38.111 172.64.34.111 2606:4700:50::a29f:266f 2803:f800:50::6ca2:c26f 2a06:98c1:50::ac40:226f	deborah.ns.cloudflare.com deborah.ns.cloudflare.com deborah.ns.cloudflare.com deborah.ns.cloudflare.com deborah.ns.cloudflare.com deborah.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
greg.ns.cloudflare.com	108.162.193.115 172.64.33.115 173.245.59.115 2606:4700:58::adf5:3b73 2803:f800:50::6ca2:c173 2a06:98c1:50::ac40:2173	greg.ns.cloudflare.com greg.ns.cloudflare.com greg.ns.cloudflare.com greg.ns.cloudflare.com greg.ns.cloudflare.com greg.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 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	techpreview-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::d 2a01:111:f403:ca09::2 2a01:111:f403:ca09::9 52.101.68.16 52.101.68.5 52.101.73.28 52.101.73.6	mail-db4pr02cu00406.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com mail-am6pr04cu00306.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	104.21.62.99

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 56ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records3 records 199ms

TXT Record
mscid=Ip/BELw+9h967WbuLNeEczdeCHAI11rpfDfjXvJhm5RUrs9w/5bScdBzpPeJkROZjxjbjBmtPMjiIip1U8jC5A==
sb2gz6b740nchd4dxgrz25nbpgcb8ll9
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (techpreview.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.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 / DANE

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

🔐 DNSSEC59ms

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	2410477740
Primary NS (MNAME)	deborah.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

33ms

A

36ms

MX

33ms

AAAA

32ms

TXT

199ms

CAA

35ms

HTTPS

31ms

TLSA

212ms

SOA

0ms

MTA-STS

52ms

DNSSEC

59ms

SRV

56ms

Total

1499ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 17:51:20	864ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-13 09:21:01	2054ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-09 07:05:29	1475ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-25 23:00:19	1499ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-15 21:02:22	4056ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-20 20:12:10	1772ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-17 13:36:41	1119ms	2 NS 0 A 1 MX	🔒 Secure	View