prevas.dk

📜 Historical scan 2026-06-19 23:04:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

prevas.dk is a .dk domain served by 4 nameservers (dns01.dipcon.com, dns02.ports.se, dns03.ports.se and 1 more). It was registered on 27 July 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.84.52.20 is hosted by SiteVision AB (AS41174) in Sweden. Mail is handled by prevas-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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#

4 records 224ms

Nameserver	IP addresses	PTR	ASN / ISP
dns01.dipcon.com	193.14.90.50 2a00:801:fb:253::4	dns01.dipcon.com dns01.dipcon.com	AS1257 Tele2 SWIPnet AS1257 Tele2 SWIPnet
dns02.ports.se	2001:19f0:5001:2a:5400:ff:fe38:1e6f 45.63.42.179	dns02.ports.se dns02.ports.se	AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC
dns03.ports.se	2a04:3540:1000:310:287e:f6ff:fe1d:4789 94.237.33.102	dns03.ports.se dns03.ports.se	AS202053 UpCloud Ltd AS202053 UpCloud Ltd
dns04.ports.net	158.255.211.116 2a03:f80:ed15:3ec8::1	dns04.ports.net dns04.ports.net	AS57169 EDIS GmbH AS57169 EDIS GmbH

🌍 A Records#

1 records 264ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.84.52.20	3600s	—	AS41174	SiteVision AB	185.84.52.0/22	🇸🇪 Sweden	—

📧 MX Records#

1 records 295ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	prevas-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca09::1 2a01:111:f403:ca09::3 2a01:111:f403:ca09::8 52.101.68.16 52.101.68.3 52.101.73.15 52.101.73.4	mail-du2pr03cu00102.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.104.116.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 332ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	0	5061	sipfed.online.lync.com

📝 TXT Records#

7 records 615ms

TXT Record
aFiA6pZH92bQJeqEpLBBQx8Sxl/0JCHi+uSZXeEhh4jMdkHq6uobAYsYTkucx7Bc9SseAoR8YW17KYdlgGA80A==
atlassian-sending-domain-verification=c543726c-83b0-4bfe-a9cd-9580ae16966e
bw=PkpdwXC87S02fqaSHVOhaNeHzf6uoOFRbtDl6KUBfpSo
globalsign-domain-verification=_tBqrxigz1h2XBv1a1kvpPutVRzprInDFAG_xtr4C4
MS=ms68259175
v=spf1 a mx ip4:62.95.78.3 ip4:62.95.78.10 a:mail.workbuster.se include:_spf.atlassian.net include:spf.protection.outlook.com include:mail.sitevision-cloud.net -all
YXnI8+XcwoYBApf3TupOuNKYELtco8jHKBhDFl53rf8=

✉️ SPF#

Policy	Record (prevas.dk)
-all (hard fail)	v=spf1 a mx ip4:62.95.78.3 ip4:62.95.78.10 a:mail.workbuster.se include:_spf.atlassian.net include:spf.protection.outlook.com include:mail.sitevision-cloud.net -all

📨 DMARC#

Policy	Record (_dmarc.prevas.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@prevas.dk; ruf=mailto:dmarc@prevas.dk; adkim=s; aspf=s

📬 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 2026-10-07 14:01:26

www	Address record (no CNAME)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-prevas-dk._domainkey.prevasonline.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 7/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

430ms

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

🏷️ SOA#

302ms

Field	Value
Serial	2025120400
Primary NS (MNAME)	dns01.dipcon.com
Responsible (RNAME)	registry@ports.net
Refresh	43200s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-07 14:08:41

Field	Value
Registrar	Abion AB
Registered	2001-07-27
Expires	2027-09-30 (344d)

📋 WHOIS#

⏱️ Lookup Timing#

224ms

264ms

295ms

AAAA

151ms

TXT

615ms

CAA

318ms

HTTPS

217ms

TLSA

246ms

SOA

302ms

MTA-STS

297ms

DNSSEC

430ms

SRV

332ms

Total

2498ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 14:01:26	2825ms	4 NS 1 A 1 MX	🔓 Insecure
2026-07-03 11:30:35	1681ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-27 00:38:49	3231ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-20 07:33:06	994ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-19 23:04:27 shown	2498ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-18 03:14:01	1355ms	4 NS 1 A 1 MX	🔓 Insecure