jsuengineering.dk DNS records

🖥️ Nameservers2 records 23ms

Nameserver	IP addresses	PTR	ASN / ISP
dimitris.ns.cloudflare.com	108.162.195.6 162.159.44.6 172.64.35.6 2606:4700:58::a29f:2c06 2803:f800:50::6ca2:c306 2a06:98c1:50::ac40:2306	dimitris.ns.cloudflare.com dimitris.ns.cloudflare.com dimitris.ns.cloudflare.com dimitris.ns.cloudflare.com dimitris.ns.cloudflare.com dimitris.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ursula.ns.cloudflare.com	108.162.194.191 162.159.38.191 172.64.34.191 2606:4700:50::a29f:26bf 2803:f800:50::6ca2:c2bf 2a06:98c1:50::ac40:22bf	ursula.ns.cloudflare.com ursula.ns.cloudflare.com ursula.ns.cloudflare.com ursula.ns.cloudflare.com ursula.ns.cloudflare.com ursula.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 24ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.65.128	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.145.109	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	jsuengineering-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca09::a 2a01:111:f403:ca38::a 2a01:111:f403:ca3c::6 52.101.103.137 52.101.103.36 52.101.68.18 52.101.73.8	mail-db4pr02cu00204.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-db4pr02cu00302.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 → 40.104.116.8
🔶 Autoconfig	172.67.145.109

🔷 AAAA Records (IPv6)2 records 32ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:916d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:4180	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 29ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.65.128,172.67.145.109 ech=AEX+DQBBzAAgACB+k8EvF8oKr3LKVzXTnm9RTzLS0CCZIBy00U8yM4KIOQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:916d,2606:4700:3037::6815:4180

📝 TXT Records3 records 146ms

TXT Record
MS=ms17632145
MS=ms95495152
v=spf1 include:spf.protection.outlook.com include:dedicated.mysmtp.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.jsuengineering.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=r; aspf=r; rua=mailto:abuse@jsuengineering.dk; ruf=mailto:abuse@jsuengineering.dk; fo=0; pct=100; ri=86400

📬 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)

🔐 DNSSEC100ms

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

🏷️ SOA0ms

Field	Value
Serial	2413909709
Primary NS (MNAME)	dimitris.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

23ms

A

24ms

MX

31ms

AAAA

32ms

TXT

146ms

CAA

30ms

HTTPS

29ms

TLSA

185ms

SOA

0ms

MTA-STS

48ms

DNSSEC

100ms

SRV

76ms

Total

751ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-03 19:55:57	751ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-09-02 04:09:13	799ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-26 02:15:27	1051ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-25 10:57:09	1468ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-25 14:35:26	9508ms	2 NS 2 A 1 MX	❓ Unknown	View
2026-06-26 09:01:16	1315ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 18:02:38	1721ms	2 NS 2 A 1 MX	🔓 Insecure	View