jt3.dk DNS records

🖥️ Nameservers4 records 220ms

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 221ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.20.205.35	3600s	linux363.unoeuro.com	AS48854	team.blue Denmark A/S	185.20.204.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 223ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	jt3-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::b 2a01:111:f403:ca04::d 2a01:111:f403:ca09::5 52.101.68.18 52.101.68.32 52.101.73.11 52.101.73.16	mail-db7pr03cu00401.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as2pr05cu00100.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 → 52.98.152.200
🔶 Autoconfig	185.20.205.35

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 629ms

TXT Record
MS=ms20020660
v=spf1 ip4:77.243.36.194 ip4:94.231.106.100 ip4:94.231.103.98 include:spf.protection.outlook.com include:spf.simply.com -all

✉️ SPF

Policy	Record (jt3.dk)
-all (hard fail)	v=spf1 ip4:77.243.36.194 ip4:94.231.106.100 ip4:94.231.103.98 include:spf.protection.outlook.com include:spf.simply.com -all

📨 DMARC

Policy	Record (_dmarc.jt3.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:kw4mtjma@ag.eu.dmarcian.com; ruf=mailto:kw4mtjma@fr.eu.dmarcian.com; 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)

🔐 DNSSEC449ms

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

🏷️ SOA293ms

Field	Value
Serial	2026033000
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

220ms

A

221ms

MX

223ms

AAAA

306ms

TXT

629ms

CAA

177ms

HTTPS

283ms

TLSA

869ms

SOA

293ms

MTA-STS

287ms

DNSSEC

449ms

SRV

336ms

Total

3073ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-21 18:12:24	3073ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 00:59:54	1168ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 00:23:59	1054ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 19:45:30	956ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 06:29:29	893ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 23:58:54	1062ms	4 NS 1 A 1 MX	🔒 Secure	View