icentrum.dk DNS records

🖥️ Nameservers4 records 235ms

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
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 214ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.176	3600s	linux287.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records1 records 247ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	icentrum-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca09::3 2a01:111:f403:ca09::5 2a01:111:f403:ca09::9 52.101.73.24 52.101.73.26 52.101.73.4 52.101.73.8	mail-db7pr03cu00601.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-as8pr05cu00300.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am0pr83cu00404.inbound.protection.outlook.com mail-am0pr04cu00500.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	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 633ms

TXT Record
MS=ms45222020
v=spf1 include:spf.protection.outlook.com include:spf.simply.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.icentrum.dk)
p=reject	v=DMARC1; p=reject;

📬 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)

🔐 DNSSEC518ms

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

🏷️ SOA224ms

Field	Value
Serial	2025102101
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

235ms

A

214ms

MX

247ms

AAAA

216ms

TXT

633ms

CAA

207ms

HTTPS

228ms

TLSA

205ms

SOA

224ms

MTA-STS

252ms

DNSSEC

518ms

SRV

308ms

Total

2300ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-25 06:30:25	2300ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 03:55:43	804ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 17:05:46	3369ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 15:40:50	16337ms	0 NS 0 A 0 MX	❓ Unknown	View