celsus.dk DNS records

🖥️ Nameservers4 records 63ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1-08.azure-dns.com	13.107.236.8 2603:1061:0:700::8	ns1-08.azure-dns.com ns1-08.azure-dns.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns2-08.azure-dns.net	150.171.21.8 2620:1ec:8ec:700::8	ns2-08.azure-dns.net ns2-08.azure-dns.net	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns3-08.azure-dns.org	204.14.183.8 2a01:111:4000:700::8	ns3-08.azure-dns.org ns3-08.azure-dns.org	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns4-08.azure-dns.info	208.84.5.8 2620:1ec:bda:700::8	ns4-08.azure-dns.info ns4-08.azure-dns.info	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records

🌍

No A records found

📧 MX Records1 records 58ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	celsus-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::7 2a01:111:f403:ca04::8 2a01:111:f403:ca48::8 52.101.68.15 52.101.68.16 52.101.73.15 52.101.73.22	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00307.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-am9pr04cu00107.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 98ms

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

📝 TXT Records2 records 256ms

TXT Record
3s04g102l5srhbzl1kxvn6p5b0g5lcgc
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (celsus.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)

🔐 DNSSEC183ms

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

🏷️ SOA0ms

Field	Value
Serial	1
Primary NS (MNAME)	ns1-08.azure-dns.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

63ms

A

57ms

MX

58ms

AAAA

48ms

TXT

256ms

CAA

48ms

HTTPS

25ms

TLSA

187ms

SOA

0ms

MTA-STS

92ms

DNSSEC

183ms

SRV

98ms

Total

1300ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 15:06:33	1300ms	4 NS 0 A 1 MX	🔓 Insecure	View
2026-07-02 16:15:29	1456ms	4 NS 0 A 1 MX	🔓 Insecure	View
2026-07-02 15:49:02	9849ms	4 NS 0 A 1 MX	🔓 Insecure	View
2026-06-20 19:01:55	2113ms	4 NS 0 A 1 MX	🔓 Insecure	View
2026-06-20 18:48:20	936ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-16 20:43:13	24288ms	4 NS 0 A 1 MX	🔓 Insecure	View
2026-06-16 20:15:51	1744ms	4 NS 0 A 1 MX	🔓 Insecure	View
2026-06-16 20:03:20	846ms	4 NS 0 A 1 MX	🔓 Insecure	View
2026-06-16 20:00:22	857ms	4 NS 0 A 1 MX	🔓 Insecure	View