sylvestogco.dk DNS records

🖥️ Nameservers4 records 81ms

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 Records1 records 100ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.55.97.110	1800s	cp04.azehosting.net	AS24940	Hetzner Online GmbH	162.55.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records1 records 56ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	sylvestogco-dk.mail.protection.outlook.com	2a01:111:f403:ca09::2 2a01:111:f403:ca09::6 2a01:111:f403:ca09::d 2a01:111:f403:ca09::e 52.101.68.3 52.101.68.36 52.101.68.8 52.101.73.30	mail-am0pr83cu00402.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am7pr05cu00306.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

🔌 SRV Records1 records 153ms

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

📝 TXT Records3 records 437ms

TXT Record
MS=ms83182792
mscid=ONNTHREsFit1F4kBSPcEI2alXtbEJd5cLeLPPNExVuBym8N6wHqPEjWQjFDzdatH9XORJcyPDBaCWWMnLv6T+w==
v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net ip4:46.30.212.6 include:_custspf.one.com ~all

✉️ SPF

Policy	Record (sylvestogco.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net ip4:46.30.212.6 include:_custspf.one.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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.sylvestogco.dk	sylvestogco.dk.acme.service.one.com

🔗 TLSA / DANE

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

🔐 DNSSEC105ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA76ms

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

81ms

A

100ms

MX

56ms

AAAA

99ms

TXT

437ms

CAA

76ms

HTTPS

80ms

TLSA

1140ms

SOA

76ms

MTA-STS

78ms

DNSSEC

105ms

SRV

153ms

Total

1885ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-21 17:07:20	1885ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 11:57:48	1254ms	4 NS 1 A 1 MX	🔓 Insecure	View