kayak.dk is a .dk domain served by 3 nameservers (blue.foundationdns.com, blue.foundationdns.net, blue.foundationdns.org). It was registered on 12 July 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 151.101.1.29 is hosted by Fastly, Inc. (AS54113) in United States. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 151.101.1.29 | 3600s | — | AS54113 | Fastly, Inc. | 151.101.0.0/16 | 🇺🇸 United States | — |
| 151.101.129.29 | 3600s | — | AS54113 | Fastly, Inc. | 151.101.0.0/16 | 🇺🇸 United States | — |
| 151.101.193.29 | 3600s | — | AS54113 | Fastly, Inc. | 151.101.0.0/16 | 🇺🇸 United States | — |
| 151.101.65.29 | 3600s | — | AS54113 | Fastly, Inc. | 151.101.0.0/16 | 🇺🇸 United States | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a04:4e42:200::285 | 3600s | — | AS54113 | Fastly, Inc. | 2a04:4e42:0:0:0:0:0:0/32 | 🇺🇸 United States | — |
| 2a04:4e42::285 | 3600s | — | AS54113 | Fastly, Inc. | 2a04:4e42:0:0:0:0:0:0/32 | 🇺🇸 United States | — |
| 2a04:4e42:400::285 | 3600s | — | AS54113 | Fastly, Inc. | 2a04:4e42:0:0:0:0:0:0/32 | 🇺🇸 United States | — |
| 2a04:4e42:600::285 | 3600s | — | AS54113 | Fastly, Inc. | 2a04:4e42:0:0:0:0:0:0/32 | 🇺🇸 United States | — |
| TXT Record |
|---|
| v=spf1 include:spf.kayak.com ~all |
| Policy | Record (kayak.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.kayak.com ~all |
| Policy | Record (_dmarc.kayak.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email,mailto:dmarc@kayak.com |
| www CNAME | kayak.r9cdn.net (all on r9cdn.net) |
| www vs bare domain | Same network kayak.dk: 151.101.1.29 151.101.129.29 151.101.193.29 151.101.65.29 (AS54113) www.kayak.dk: 151.101.1.29 151.101.129.29 151.101.193.29 151.101.65.29 (AS54113) |
| Wildcard | No |
DNS lookups: 4/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.kayak.dk | 9pABOfjMbFitiqjyLBWwlVZy3oZeaLh_Kkj-drBEsbc |
| TXT | _acme-challenge.kayak.dk | J5c6i5x3j2dYcojdCFXe4z-lOUDO3wRvm9dC3RbAG5A |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2407371728 |
| Primary NS (MNAME) | blue.foundationdns.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | MarkMonitor Inc. |
| Registered | 1996-07-12 |
| Expires | 2027-09-30 (344d) |
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| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 23:28:18 | 2492ms | 3 NS 4 A 5 MX | 🔓 Insecure |
| 2026-09-29 23:16:11 | 801ms | 3 NS 4 A 5 MX | 🔓 Insecure |
| 2026-09-27 16:56:19 | 860ms | 3 NS 4 A 5 MX | 🔓 Insecure |
| 2026-09-07 15:45:16 | 1200ms | 3 NS 4 A 5 MX | 🔓 Insecure |
| 2026-08-04 05:42:43 | 10836ms | 3 NS 4 A 5 MX | 🔓 Insecure |
| 2026-07-06 20:47:10 | 18612ms | 3 NS 4 A 5 MX | 🔓 Insecure |
| 2026-06-28 12:22:00 | 3647ms | 3 NS 4 A 5 MX | 🔓 Insecure |
| 2026-06-27 02:57:58 | 1425ms | 3 NS 4 A 5 MX | 🔓 Insecure |
| 2026-06-21 03:32:10 shown | 2192ms | 3 NS 4 A 5 MX | 🔓 Insecure |
| 2026-06-18 05:09:37 | 1364ms | 3 NS 4 A 5 MX | 🔓 Insecure |