jsuengineering.dk

📜 Historical scan 2026-06-17 18:02:38 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jsuengineering.dk is a .dk domain served by 2 nameservers (dimitris.ns.cloudflare.com, ursula.ns.cloudflare.com). It was registered on 20 August 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by jsuengineering-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 77ms

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 Records#

2 records 101ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.65.128	—	—	AS13335	—	—	—	—
172.67.145.109	—	—	AS13335	—	—	—	—

📧 MX Records#

1 records 95ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	jsuengineering-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca09::1 2a01:111:f403:ca09::d 2a01:111:f403:ca09::e 52.101.68.5 52.101.73.12 52.101.73.24 52.101.73.28	mail-db7pr03cu00401.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-as8pr05cu00300.inbound.protection.outlook.com mail-am7pr05cu00204.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

🔷 AAAA Records (IPv6)#

2 records 75ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:4180	—	—	AS13335	—	—	—	—
2606:4700:3036::ac43:916d	—	—	AS13335	—	—	—	—

🔐 HTTPS Records#

1 records 72ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.65.128,172.67.145.109 ech=AEX+DQBBgwAgACA0KOPNBqTxhLwg5g8zJrhsSmTaWtcJ+w22tMJDD+Q2UwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:4180,2606:4700:3036::ac43:916d

📝 TXT Records#

3 records 179ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-10 10:25:46

www	104.21.65.128 172.67.145.109 2606:4700:3032::ac43:916d 2606:4700:3037::6815:4180 (AS13335) (address records, no CNAME)
www vs bare domain	Same network jsuengineering.dk: 188.114.96.1 188.114.97.1 2606:4700:3032::ac43:916d 2606:4700:3037::6815:4180 (AS13335) www.jsuengineering.dk: 104.21.65.128 172.67.145.109 2606:4700:3032::ac43:916d 2606:4700:3037::6815:4180 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

158ms

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

🏷️ SOA#

87ms

Field	Value
Serial	2406262790
Primary NS (MNAME)	dimitris.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-13 15:07:20

Field	Value
Registrar	WorkDigital ApS
Registered	2020-08-20
Expires	2027-08-31 (315d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

77ms

101ms

95ms

AAAA

75ms

TXT

179ms

CAA

73ms

HTTPS

72ms

TLSA

800ms

SOA

87ms

MTA-STS

83ms

DNSSEC

158ms

SRV

0ms

Total

1721ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 18:09:21	1291ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-21 23:09:49	7190ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-03 19:55:57	751ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-02 04:09:13	799ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 02:15:27	1051ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-25 10:57:09	1468ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-25 14:35:26	9508ms	2 NS 2 A 1 MX	❓ Unknown
2026-06-26 09:01:16	1315ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 18:02:38 shown	1721ms	2 NS 2 A 1 MX	🔓 Insecure