stairways.dk DNS records

🖥️ Nameservers2 records 54ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.45.81.79	43200s	—	AS8075	Microsoft Corporation	104.40.0.0/13	🇮🇪 Ireland	Dublin

📧 MX Records1 records 52ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	stairways-dk.mail.protection.outlook.com	2a01:111:f403:ca09::2 2a01:111:f403:ca09::20 2a01:111:f403:ca09::5 2a01:111:f403:ca09::9 52.101.68.16 52.101.68.29 52.101.73.153 52.101.73.22	mail-am0pr83cu00402.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-am7pr05cu00106.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 → 40.104.116.40
🔶 Autoconfig	stairways.azurewebsites.net → 104.45.81.79

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 125ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 229ms

TXT Record
MS=ms13032033
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (stairways.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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.stairways.dk	stairways.azurewebsites.net

🔗 TLSA / DANE

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

🔐 DNSSEC99ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2026081201
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

54ms

A

48ms

MX

52ms

AAAA

45ms

TXT

229ms

CAA

54ms

HTTPS

35ms

TLSA

188ms

SOA

0ms

MTA-STS

138ms

DNSSEC

99ms

SRV

125ms

Total

1369ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-13 06:50:50	1369ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-19 11:37:58	3130ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-15 13:55:02	9278ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-08 23:16:06	5872ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-28 07:34:29	1156ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 15:14:44	951ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 12:09:21	1092ms	2 NS 1 A 1 MX	🔒 Secure	View