ku.dk is a .dk domain served by 2 nameservers (ns1.ku.dk, ns2.ku.dk). It was registered on 25 March 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 130.226.237.173 is hosted by IDDQD-AS (AS1835) in Denmark. Mail is handled by ku-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 130.226.237.173 | 30s | cmslb.adm.ku.dk | AS1835 | IDDQD-AS | 130.226.0.0/16 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 130.226.237.53 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 10 | 10 | 5061 | sipacc.ku.dk |
| TXT Record |
|---|
| 6c2c989745ec4c9da07a07aa9545b83e45af62d32706b6c50f |
| adobe-idp-site-verification=668054226d35e53f8389a1ffef3706cd9e2536340ec998eb37738a0cb3a7ec58 |
| apple-domain-verification=0dcdbMopnajFHOG4 |
| bw=LJaWj0Fpx3l/58xzv+wMmBx/rnLA3H9DxR51iD2lNFGx |
| google-site-verification=lE8sxzeQUpSEaCB6mw86kRSKRemtlQs5T_TTdleZ4oU |
| HARICA-B6JlbUNpY6FLRGLjreG |
| HARICA-hZL7IeBemUnrvjLOPS8 |
| HARICA-iGPCG7sxTBIHB30kPXW |
| HARICA-KALlY5x8AK07V5fax3e |
| HARICA-Lf19ojXj0uGvZSRtbuY |
| have-i-been-pwned-verification=dweb_brscgph7vtipz0x274w61rb7 |
| hibp-verify=dweb_2d2dhvr7zwre7wokvnhrl3mq |
| jamf-site-verification=kJWBMvj-Hk0Uq4Vyz-_QVg |
| klaviyo-site-verification=TxLiZh |
| MS=ms39433918 |
| University of Copenhagen |
| v=spf1 ip4:193.162.253.130 include:bulk.spf.ku.dk include:spf.protection.outlook.com a:unicph-gw.ku.dk a:mail.npkhosting.dk ~all |
| ZOOM_verify_XLNNoB6ABQscd0JcOGAjPn |
| Policy | Record (ku.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:193.162.253.130 include:bulk.spf.ku.dk include:spf.protection.outlook.com a:unicph-gw.ku.dk a:mail.npkhosting.dk ~all |
| Policy | Record (_dmarc.ku.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; rua=mailto:upglztho@ag.eu.dmarcadvisor.com; ruf=mailto:upglztho@fr.eu.dmarcadvisor.com; pct=100; fo=1; ri=3600 |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:hostmaster@ku.dk |
| 0 | issue | amazon.com |
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com |
| 0 | issue | globalsign.com |
| 0 | issue | harica.gr |
| 0 | issue | letsencrypt.org |
| 0 | issue | sectigo.com |
| 0 | issuewild | harica.gr |
| 0 | issuewild | letsencrypt.org |
| www CNAME | hn5cocfcmoyvu.edge.platform.sh (all on platform.sh) |
| www vs bare domain | Different networks ku.dk: 130.226.237.173 (AS1835) (all like this)www.ku.dk: 151.101.130.216 151.101.194.216 151.101.2.216 151.101.66.216 (AS54113) |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~1024 bit below 2048 bit |
| selector1 | selector1-ku-dk._domainkey.alumni.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.
DNS lookups: 4/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.ku.dk | zpmdND1YuCDytPGEMi2dyYR-xLYmTHqep5brPGh6aJ8 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | delv transient; dig AD confirmed |
| Field | Value |
|---|---|
| Serial | 2026102583 |
| Primary NS (MNAME) | ns1.ku.dk |
| Responsible (RNAME) | hostmaster@adm.ku.dk |
| Refresh | 2200s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 1998-03-25 |
| Expires | 2029-03-31 (892d) |
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).
Showing 100 of 173.
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-20 22:36:37 shown | 1437ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-19 15:21:52 | 3965ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-16 12:25:52 | 2225ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-15 11:21:47 | 2715ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-14 10:16:28 | 1958ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-13 07:26:35 | 1228ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-12 07:21:40 | 3078ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-11 06:21:11 | 2053ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-09 22:50:59 | 4194ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-08 13:08:20 | 3338ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 12:46:08 | 1869ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-06 03:42:10 | 1688ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-03 03:11:30 | 1542ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 02:50:31 | 1711ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 02:42:42 | 2370ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 02:36:48 | 1904ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-27 02:10:32 | 1579ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 01:44:28 | 1413ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 01:33:46 | 1070ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-22 04:01:37 | 1112ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-13 15:02:57 | 1350ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-07 19:12:30 | 822ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-03 04:14:50 | 1045ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-31 15:01:17 | 1563ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-29 07:50:52 | 2384ms | 2 NS 1 A 1 MX | 🔒 Secure |