yellow.dk DNS records

🖥️ Nameservers4 records 67ms

Nameserver	IP addresses	PTR	ASN / ISP
ns-1337.awsdns-39.org	205.251.197.57 2600:9000:5305:3900::1	ns-1337.awsdns-39.org ns-1337.awsdns-39.org	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-1851.awsdns-39.co.uk	205.251.199.59 2600:9000:5307:3b00::1	ns-1851.awsdns-39.co.uk ns-1851.awsdns-39.co.uk	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-475.awsdns-59.com	205.251.193.219 2600:9000:5301:db00::1	ns-475.awsdns-59.com ns-475.awsdns-59.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-592.awsdns-10.net	205.251.194.80 2600:9000:5302:5000::1	ns-592.awsdns-10.net ns-592.awsdns-10.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

🌍 A Records1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
75.2.60.5	60s	acd89244c803f7181.awsglobalaccelerator.com	AS16509	Amazon.com, Inc.	75.2.0.0/17	🇺🇸 United States	—

📧 MX Records1 records 70ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	yellow-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::7 2a01:111:f403:ca04::f 2a01:111:f403:ca09::2 52.101.68.25 52.101.73.1 52.101.73.12 52.101.73.6	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db4pr02cu00307.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am4pr0401cu00104.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	autodiscover.outlook.com → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 241ms

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

✉️ SPF

Policy	Record (yellow.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)

🔐 DNSSEC102ms

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	1
Primary NS (MNAME)	ns-1851.awsdns-39.co.uk
Responsible (RNAME)	awsdns-hostmaster@amazon.com
Refresh	7200s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

67ms

A

43ms

MX

70ms

AAAA

42ms

TXT

241ms

CAA

51ms

HTTPS

55ms

TLSA

607ms

SOA

0ms

MTA-STS

73ms

DNSSEC

102ms

SRV

93ms

Total

4151ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 19:37:54	4151ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-07-02 18:41:58	4111ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-24 23:35:55	5317ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-18 04:39:42	1167ms	4 NS 1 A 1 MX	🔓 Insecure	View