doctolib.dk is a .dk domain served by 2 nameservers (dns1.cscdns.net, dns2.cscdns.net). It was registered on 2 March 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 165.160.13.20 is hosted by Corporation Service Company (AS19574) in United States. Mail is handled by custmx.cscdns.net. The zone is DNSSEC-signed but currently fails validation, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| dns1.cscdns.net | — | — | — |
| dns2.cscdns.net | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 165.160.13.20 | — | — | AS19574 | Corporation Service Company | 165.160.12.0/22 | 🇺🇸 United States | — |
| 165.160.15.20 | — | — | AS19574 | Corporation Service Company | 165.160.12.0/22 | 🇺🇸 United States | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | custmx.cscdns.net | 198.58.121.58 | 198-58-121-58.ip.linodeusercontent.com | AS63949 Akamai Connected Cloud |
| TXT Record |
|---|
| nodnssec |
| nonullmx |
| v=spf1 -all |
| Policy | Record (doctolib.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.doctolib.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:4q5jhtt3@ag.eu.dmarcian.com, mailto:dmarc@doctolib.com; ruf=mailto:dmarc@doctolib.com; sp=reject; fo=0; adkim=s; aspf=s |
| www | 165.160.13.20 165.160.15.20 (AS19574) (address records, no CNAME) |
| www vs bare domain | Same network doctolib.dk: 165.160.13.20 165.160.15.20 (AS19574) www.doctolib.dk: 165.160.13.20 165.160.15.20 (AS19574) |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA Invalid key data — receivers can't verify signatures |
| dkim | — | RSA Invalid key data — receivers can't verify signatures |
| k1 | — | RSA Invalid key data — receivers can't verify signatures |
| s1 | — | RSA Invalid key data — receivers can't verify signatures |
| s2 | — | RSA Invalid key data — receivers can't verify signatures |
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: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | broken trust chain resolving 'doctolib.dk/A/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2022052709 |
| Primary NS (MNAME) | dns1.cscdns.net |
| Responsible (RNAME) | hostmaster@cscdns.net |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 14400s |
| Field | Value |
|---|---|
| Registrar | CSC Digital Brand Service, Inc |
| Registered | 2015-03-02 |
| Expires | 2027-03-31 (157d) |
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 |
|---|---|---|---|
| 2026-06-30 02:44:12 | 707ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 04:02:30 | 1997ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 04:02:19 | 14104ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 04:01:32 shown | 462ms | 2 NS 2 A 1 MX | ⚠️ Bogus |
| 2026-06-17 04:00:54 | 656ms | 2 NS 2 A 1 MX | 🔓 Insecure |