by-lykke.dk DNS records

🖥️ Nameservers4 records 47ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.bdm.microsoftonline.com	13.107.236.208 2603:1061:0:700::d0	ns1-208.azure-dns.com ns1-208.azure-dns.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns2.bdm.microsoftonline.com	150.171.21.208 2620:1ec:8ec:700::d0	ns2-208.azure-dns.net ns2-208.azure-dns.net	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns3.bdm.microsoftonline.com	204.14.183.208 2a01:111:4000:700::d0	ns3-208.azure-dns.org ns3-208.azure-dns.org	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns4.bdm.microsoftonline.com	208.84.5.208 2620:1ec:bda:700::d0	ns4-208.azure-dns.info ns4-208.azure-dns.info	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records

🌍

No A records found

📧 MX Records1 records 48ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	bylykke-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04::b 2a01:111:f403:ca04::c 2a01:111:f403:ca04::f 2a01:111:f403:ca09::5 52.101.68.16 52.101.68.39 52.101.68.5 52.101.73.24	mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00300.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	94.231.109.94

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 60ms

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

📝 TXT Records2 records 195ms

TXT Record
mscid=85RFRxUW/2cM1uLygPDC2za4Wf34mPx7CJsbTRu7ECJ4kHea/WETClHfX5FiP85zlAOOLoEsaAs4ZJtncrHObg==
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (by-lykke.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)

🔐 DNSSEC67ms

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

🏷️ SOA44ms

Field	Value
Serial	1
Primary NS (MNAME)	ns1.bdm.microsoftonline.com
Responsible (RNAME)	azuredns-hostmaster@microsoft.com
Refresh	3600s
Retry	300s
Expire	2419200s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

47ms

A

50ms

MX

48ms

AAAA

48ms

TXT

195ms

CAA

50ms

HTTPS

45ms

TLSA

505ms

SOA

44ms

MTA-STS

59ms

DNSSEC

67ms

SRV

60ms

Total

1243ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-28 20:08:10	1243ms	4 NS 0 A 1 MX	🔓 Insecure	View
2026-06-24 10:26:17	3153ms	4 NS 0 A 1 MX	🔓 Insecure	View
2026-06-24 01:32:57	1025ms	4 NS 0 A 1 MX	🔓 Insecure	View
2026-06-16 18:06:07	1773ms	4 NS 0 A 1 MX	🔓 Insecure	View
2026-06-16 18:06:00	3778ms	4 NS 0 A 1 MX	🔓 Insecure	View
2026-06-16 18:04:45	761ms	4 NS 0 A 1 MX	🔓 Insecure	View
2026-06-16 18:00:45	2643ms	4 NS 0 A 1 MX	🔓 Insecure	View