el-centrum.dk DNS records

🖥️ Nameservers2 records 244ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.itagil.dk	185.25.141.12	ns1.curanet.dk	AS48854 team.blue Denmark A/S
ns2.itagil.dk	91.197.248.75	ns2.curanet.dk	AS48854 team.blue Denmark A/S

🌍 A Records1 records 198ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.83	14400s	linux33.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 182ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	elcentrum-dk0e.mail.protection.outlook.com	2a01:111:f403:ca09::2 2a01:111:f403:ca09::6 2a01:111:f403:ca09::7 2a01:111:f403:ca09::9 52.101.68.10 52.101.73.11 52.101.73.2 52.101.73.26	mail-am0pr83cu00402.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-as9pr05cu01302.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 449ms

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

📝 TXT Records2 records 191ms

TXT Record
MS=ms33200669
v=spf1 include:spf.protection.outlook.com ip4:212.112.140.7 ip4:87.255.33.143 +a +mx +ip4:89.184.153.216 -all

✉️ SPF

Policy	Record (el-centrum.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:212.112.140.7 ip4:87.255.33.143 +a +mx +ip4:89.184.153.216 -all

📨 DMARC

Policy	Record (_dmarc.el-centrum.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100; rua=mailto:dmarc@el-centrum.dk; ruf=mailto:dmarc@el-centrum.dk

📬 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
TXT	_acme-challenge.el-centrum.dk	GZtQICHxDk72B7iMaGmSuldYtNEvTodN-rrheK20Si4

🔗 TLSA / DANE

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

🔐 DNSSEC391ms

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

🏷️ SOA186ms

Field	Value
Serial	2025091102
Primary NS (MNAME)	ns1.itagil.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

244ms

A

198ms

MX

182ms

AAAA

192ms

TXT

191ms

CAA

179ms

HTTPS

179ms

TLSA

135ms

SOA

186ms

MTA-STS

182ms

DNSSEC

391ms

SRV

449ms

Total

1446ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-22 03:51:20	1446ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 06:31:38	948ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 06:30:28	845ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 06:30:19	1961ms	2 NS 1 A 1 MX	🔒 Secure	View