cebra.dk DNS records

🖥️ Nameservers3 records 80ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 53ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
216.150.1.1	600s	—	AS16509	Amazon.com, Inc.	216.150.1.0/24	🇺🇸 United States	—

📧 MX Records1 records 59ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cebra-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::1 2a01:111:f403:ca09::28 2a01:111:f403:ca38::8 52.101.68.32 52.101.68.5 52.101.73.22 52.101.73.4	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db7pr03cu00401.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-am0pr83cu00404.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 92ms

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

📝 TXT Records3 records 205ms

TXT Record
MS=ms80741752
pinterest-site-verification=9e79123a964959f16a1f8ab30a86913b
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (cebra.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.cebra.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:monitor@systechit.dk; ruf=mailto:monitor@systechit.dk; fo=1

📬 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)

🔐 DNSSEC130ms

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

🏷️ SOA0ms

Field	Value
Serial	2026050500
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

80ms

A

53ms

MX

59ms

AAAA

76ms

TXT

205ms

CAA

68ms

HTTPS

45ms

TLSA

667ms

SOA

0ms

MTA-STS

112ms

DNSSEC

130ms

SRV

92ms

Total

1372ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 05:39:00	1372ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-26 03:23:54	2450ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-24 15:31:44	2316ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 19:55:11	2225ms	3 NS 1 A 1 MX	🔓 Insecure	View