opkurser.dk

Records from scan: 2026-09-30 21:18:37  ·  1398ms total  ·  last checked 2026-10-23 12:04 (unchanged)
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

opkurser.dk is a .dk domain served by 2 nameservers (ns1.vercel-dns.com, ns2.vercel-dns.com). It was registered on 28 November 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.150.1.1 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by opkurser-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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   51ms
NameserverIP addressesPTRASN / ISP
ns1.vercel-dns.com 198.51.44.13
2620:4d:4000:6259:7:13:0:1		 dns1.p13.nsone.net
dns1.p13.nsone.net		 AS62597 NSONE Inc
AS62597 NSONE Inc
ns2.vercel-dns.com 198.51.45.13
2a00:edc0:6259:7:13::2		 dns2.p13.nsone.net
dns2.p13.nsone.net		 AS62597 NSONE Inc
AS62597 NSONE Inc

🌍 A Records#

2 records   52ms
IPTTLPTRASNISP / OrgCIDRCountryCity
216.150.1.1 1800s — AS16509 Amazon.com, Inc. 216.150.1.0/24 🇺🇸 United States —
216.150.16.1 1800s — AS16509 Amazon.com, Inc. 216.150.16.0/24 🇺🇸 United States —

📧 MX Records#

1 records   47ms
PriorityTTLMail ServerIP addressesPTRASN
0 60s opkurser-dk.mail.protection.outlook.com 2a01:111:f403:c967::c
2a01:111:f403:ca04::4
2a01:111:f403:ca09::28
2a01:111:f403:ca09::a
52.101.103.143
52.101.181.153
52.101.68.10
52.101.73.123		 mail-cpjpr05cu00204.inbound.protection.outlook.com
mail-db4pr02cu00204.inbound.protection.outlook.com
mail-am6pr02cu00300.inbound.protection.outlook.com
mail-am7pr02cu00202.inbound.protection.outlook.com
mail-miypr03cu00107.inbound.protection.outlook.com
mail-wa4pr04cu00101.inbound.protection.outlook.com
mail-dbbpr03cu00102.inbound.protection.outlook.com
mail-am6pr02cu00203.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#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.40
🔶 Autoconfig216.150.16.1

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records   113ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 100 1 5061 sipfed.online.lync.com

📝 TXT Records#

3 records   343ms
TXT Record
google-site-verification=fbf7p5oItdoP6VCDZotSoq420oAusAgEYhu9jgmwkYE
k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB;
v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:spf.mandrillapp.com include:spf.dynamicweb-cms.com include:amazonses.com -all

✉️ SPF#

PolicyRecord (opkurser.dk)
-all (hard fail) v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:spf.mandrillapp.com include:spf.dynamicweb-cms.com include:amazonses.com -all

📨 DMARC#

PolicyRecord (_dmarc.opkurser.dk)
p=reject v=DMARC1; p=reject; pct=100; rua=mailto:re+q85ijlgmrud@dmarc.postmarkapp.com; sp=none; aspf=r;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

3 records   57ms
FlagsTagValue
0 issue letsencrypt.org
0 issue pki.goog
0 issue sectigo.com

🧩 Web & zone#

checked 2026-10-08 00:18:34
www216.150.1.193 216.150.16.193 (AS16509) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

✍️ DKIM keys#

2 found
SelectorCNAMEKey
k1 dkim.mcsv.net RSA · ~1024 bit below 2048 bit
selector2 selector2-opkurser-dk._domainkey.opkurser.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#

96ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

41ms
FieldValue
Serial1756127842
Primary NS (MNAME)ns1.vercel-dns.com
Responsible (RNAME)hostmaster@nsone.net
Refresh43200s
Retry7200s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-23 06:41:09
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2008-11-28
Expires2031-11-30 (1864d)

🔗 Same registrant#

4 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).

DomainRegistrar
lovgivningen.dkDANDOMAIN A/S
lovguiden.dkPunktum dk A/S (direct)
oekonomiguiden.dkDANDOMAIN A/S
øpkurser.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
51ms
A
52ms
MX
47ms
AAAA
81ms
TXT
343ms
CAA
57ms
HTTPS
62ms
TLSA
603ms
SOA
41ms
MTA-STS
78ms
DNSSEC
96ms
SRV
113ms
Total
1398ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-30 21:18:37 shown 1398ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-29 18:42:50 1125ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-28 06:46:43 1228ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-21 16:41:32 1589ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-07 06:34:15 1005ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-27 11:26:12 1435ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-26 18:20:00 1125ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-25 11:02:40 1202ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-22 01:55:59 1081ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-18 03:35:05 1414ms 2 NS 2 A 1 MX 🔓 Insecure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone