krydstogteksperten.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 29 July 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 151.101.1.91 is hosted by Fastly, Inc. (AS54113) in United States. Mail is handled by mx.spamfilter.io. 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 |
|---|---|---|---|---|---|---|---|
| 151.101.1.91 | 600s | — | AS54113 | Fastly, Inc. | 151.101.0.0/16 | 🇺🇸 United States | — |
| 151.101.129.91 | 3600s | — | AS54113 | Fastly, Inc. | 151.101.0.0/16 | 🇺🇸 United States | — |
| 151.101.193.91 | 3600s | — | AS54113 | Fastly, Inc. | 151.101.0.0/16 | 🇺🇸 United States | — |
| 151.101.65.91 | 3600s | — | AS54113 | Fastly, Inc. | 151.101.0.0/16 | 🇺🇸 United States | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscoverredirect.webexchange.nu → 46.36.209.50 |
| 🔶 Autoconfig | 172.234.99.158 |
| TXT Record |
|---|
| brevo-code:73ea98707d17741a7850aebf2498e4ac |
| v=spf1 a mx include:spf.scannet.dk ip4:77.66.124.89 ip4:93.90.117.66 ip4:193.239.98.128/25 include:mailmailmail.net include:spf.traveltek.net -all |
| Policy | Record (krydstogteksperten.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx include:spf.scannet.dk ip4:77.66.124.89 ip4:93.90.117.66 ip4:193.239.98.128/25 include:mailmailmail.net include:spf.traveltek.net -all |
| Policy | Record (_dmarc.krydstogteksperten.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com |
| www CNAME | dreamlake.map.fastly.net (all on fastly.net) |
| www vs bare domain | Same network krydstogteksperten.dk: 151.101.1.91 151.101.129.91 151.101.193.91 151.101.65.91 (AS54113) www.krydstogteksperten.dk: 199.232.41.91 2a04:4e42:47::347 (AS54113) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | RSA · ~1024 bit below 2048 bit | |
| s1 | s1.domainkey.u51248987.wl238.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u51248987.wl238.sendgrid.net | RSA · ~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: 8/10 · policy: -all
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.krydstogteksperten.dk | ur8qwl1aydzxhr74sc.fastly-validations.com |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.spamfilter.io | DANE-EE · SPKI · SHA-256 | 9A25F05F2E322DABDCC9B7A06AB47A2D… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100501 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2008-07-29 |
| Expires | 2027-07-31 (286d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 14:22:52 shown | 950ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-10-06 08:03:58 | 2702ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-10-01 07:41:56 | 848ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-10-01 06:42:17 | 1078ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-09-30 06:37:49 | 701ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-09-23 17:46:48 | 4571ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-09-23 02:22:04 | 1860ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-09-18 03:23:36 | 9530ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-08-28 01:58:06 | 996ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-06-23 23:28:03 | 1161ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-06-22 03:50:50 | 1139ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 20:23:22 | 703ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-06-18 06:53:48 | 879ms | 2 NS 4 A 1 MX | 🔒 Secure |