sd.dk is a .dk domain served by 2 nameservers (johnathan.ns.cloudflare.com, ruth.ns.cloudflare.com). It was registered on 12 February 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.18.22.170 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by sd-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 104.18.22.170 | 300s | — | AS13335 | Cloudflare, Inc. | 104.16.0.0/14 | — | — |
| 104.18.23.170 | 300s | — | AS13335 | Cloudflare, Inc. | 104.16.0.0/14 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.152 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700::6812:16aa | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:0:0:0:0:0:0/43 | 🇺🇸 United States | — |
| 2606:4700::6812:17aa | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:0:0:0:0:0:0/43 | 🇺🇸 United States | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h2" ipv4hint=104.18.22.170,104.18.23.170 ipv6hint=2606:4700::6812:16aa,2606:4700::6812:17aa |
| TXT Record |
|---|
| _24pciybsy5x1riy6nuvx6t2f8aqg1ao |
| _5xicelibd763dlxsn3plbc4uq7uy5nu |
| _duc9csw8m03gspbx26p8su769q21irp |
| _globalsign-domain-verification=A5n7PeMvW0SRSKZJFjUEyEP9YwSKhEl2EUV6zKBMwN |
| _globalsign-domain-verification=cQe19dtIolpCSSIppA1Smx4d22FBqtdFJAwuUgSrsT |
| _globalsign-domain-verification=dij0JJYCOnNAlP2wB-C_v2kQStIVIXPlJJmvpykblQ |
| _globalsign-domain-verification=eGRx8CHyoqp5turht1tVD8ct7mbX9HSuvZkeXnLBjK |
| _globalsign-domain-verification=I4End4niwkao3Km76bcRs-F5yROENjE1x7a-soHsUe |
| _globalsign-domain-verification=IJ84rPsZeiQCaZFTlWBbUwuaY6UU3KfyVy3OlCu-TW |
| _globalsign-domain-verification=KrysiUFDmf7yllHnUGF1_PGfvr7YqBN0Mg_x4rVL7u |
| _j92r8tioy6k2kqgxftn5wowcmaim4dl |
| _kp7gjkqq7eyijh2h14bhvbf15a6z2wg |
| _o9z7908thyhctggog94hi8cy36vb7w4 |
| docusign=8f6871a1-b319-4200-a9b9-87eab0b77529 |
| docusign=d6619771-acf7-44e5-aa89-e98276f925bb |
| knowbe4-site-verification=af0442ff1a8bc740c039ebb15e88df5c |
| MS=ms73144981 |
| v=spf1 ip4:185.128.102.81 ip4:185.128.102.82 ip4:80.196.242.132 ip4:80.196.242.133 ip4:185.21.41.106 a:mailserver1.as13009.net a:mailserver2.as13009.net a:mailserver3.as13009.net include:_spf-hosting.eg.dk include:spf.protection.outlook.com include:amazonses.com -all |
| Policy | Record (sd.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:185.128.102.81 ip4:185.128.102.82 ip4:80.196.242.132 ip4:80.196.242.133 ip4:185.21.41.106 a:mailserver1.as13009.net a:mailserver2.as13009.net a:mailserver3.as13009.net include:_spf-hosting.eg.dk include:spf.protection.outlook.com include:amazonses.com -all |
| Policy | Record (_dmarc.sd.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:nndoofzt@ag.eu.dmarcadvisor.com; ruf=mailto:nndoofzt@fr.eu.dmarcadvisor.com; |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com; cansignhttpexchanges=yes |
| 0 | issue | geotrust.com |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog; cansignhttpexchanges=yes |
| 0 | issue | ssl.com |
| 0 | issue | www.digicert.com |
| 0 | issuewild | comodoca.com |
| 0 | issuewild | digicert.com; cansignhttpexchanges=yes |
| 0 | issuewild | letsencrypt.org |
| 0 | issuewild | pki.goog; cansignhttpexchanges=yes |
| 0 | issuewild | ssl.com |
| www | 141.101.90.104 141.101.90.105 141.101.90.106 141.101.90.107 2a06:98c1:3200::90:80 2a06:98c1:3200::90:81 2a06:98c1:3200::90:82 2a06:98c1:3200::90:83 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-sd-dk._domainkey.egonline.onmicrosoft.com | RSA · ~2048 bit |
| selector2 | selector2-sd-dk._domainkey.egonline.onmicrosoft.com | 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: 6/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2418409798 |
| Primary NS (MNAME) | johnathan.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Eurodns S.A |
| Registered | 1997-02-12 |
| Expires | 2027-03-31 (154d) |
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).
Showing 100 of 756.
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-25 19:49:19 shown | 565ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-11 06:44:59 | 1268ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-06 19:54:22 | 4464ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-01 17:21:38 | 1649ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-29 17:06:39 | 1687ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-28 16:54:55 | 1635ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-27 16:41:15 | 1489ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-23 15:09:59 | 1681ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-21 00:40:44 | 1622ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-13 21:40:52 | 1354ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-11 13:31:43 | 1189ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-06 16:47:37 | 1697ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-06 12:15:57 | 1562ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-04 06:48:54 | 9925ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-30 03:06:53 | 4748ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-15 12:57:35 | 5561ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-12 04:15:16 | 5581ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-06 21:42:41 | 2387ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-25 10:52:38 | 9560ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-21 20:38:20 | 9511ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-10 09:50:40 | 1974ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-05 18:09:59 | 5037ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-03 11:09:26 | 1728ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-27 14:34:45 | 1664ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-25 15:22:22 | 2391ms | 2 NS 2 A 1 MX | 🔒 Secure |