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 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 165.160.13.20 | 14400s | — | AS19574 | Corporation Service Company | 165.160.12.0/22 | 🇺🇸 United States | — |
| 165.160.15.20 | 14400s | — | AS19574 | Corporation Service Company | 165.160.12.0/22 | 🇺🇸 United States | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 14400s | custmx.cscdns.net | 198.58.121.58 | 198-58-121-58.ip.linodeusercontent.com | AS63949 Akamai Connected Cloud |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 165.160.15.20 |
| 🔶 Autoconfig | 165.160.13.20 |
| 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 | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| 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) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-06-30 02:44:12 shown | 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 | 462ms | 2 NS 2 A 1 MX | ⚠️ Bogus |
| 2026-06-17 04:00:54 | 656ms | 2 NS 2 A 1 MX | 🔓 Insecure |