facebook.dk is a .dk domain served by 4 nameservers (a.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com and 1 more). It was registered on 20 November 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 157.240.200.16 is hosted by Facebook, Inc. (AS32934) in Denmark. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 157.240.200.16 | 60s | edge-star-shv-01-cph2.facebook.com | AS32934 | Facebook, Inc. | 157.240.192.0/18 | 🇩🇰 Denmark | Ballerup Municipality |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | www.facebook.com → 157.240.200.35 |
| 🔶 Autoconfig | www.facebook.com → 157.240.200.35 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a03:2880:f053:11:face:b00c:0:2 | 60s | edge-star6-shv-01-cph2.facebook.com | AS32934 | Facebook, Inc. | 2a03:2880:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Ballerup Municipality |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h2,h3" |
| 2 service | star.fallback.c10r.facebook.com. | alpn="h2,h3" |
| TXT Record |
|---|
| v=spf1 a ~all |
| Policy | Record (facebook.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a ~all |
| www CNAME | www.facebook.com (all on facebook.com) |
| www vs bare domain | Same network facebook.dk: 157.240.200.16 2a03:2880:f053:11:face:b00c:0:2 (AS32934) www.facebook.dk: 157.240.200.35 2a03:2880:f153:82:face:b00c:0:25de (AS32934) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 1/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.facebook.dk | www.facebook.com |
| 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 | 4207849484 |
| Primary NS (MNAME) | a.ns.facebook.com |
| Responsible (RNAME) | dns@facebook.com |
| Refresh | 14400s |
| Retry | 1800s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Nom-Iq Ltd |
| Registered | 2005-11-20 |
| Expires | 2026-11-30 (37d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-23 18:15:50 shown | 1455ms | 4 NS 1 A 0 MX | 🔓 Insecure |
| 2026-10-09 14:09:47 | 3547ms | 4 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-28 00:25:48 | 1125ms | 4 NS 1 A 0 MX | 🔓 Insecure |
| 2026-07-30 22:06:08 | 8918ms | 4 NS 1 A 0 MX | 🔓 Insecure |
| 2026-07-28 08:38:30 | 17667ms | 4 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-02 00:00:21 | 3096ms | 4 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-17 09:11:13 | 1171ms | 4 NS 1 A 0 MX | 🔓 Insecure |