gapguard.dk is a .dk domain served by 2 nameservers (elinore.ns.cloudflare.com, ryan.ns.cloudflare.com). It was registered on 6 April 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.61.193 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by gapguard-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 this 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 |
|---|---|---|---|---|---|---|---|
| 104.21.61.193 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.213.88 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.8 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:3dc1 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::ac43:d558 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.61.193,172.67.213.88 ech=AEX+DQBBYwAgACD0qFfxmEtlVDuyiDd/T9quXeDkl74Zci3XEjZg1TblfAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:3dc1,2606:4700:3036::ac43:d558 |
| TXT Record |
|---|
| ms78363636 |
| v=spf1 include:spf.protection.outlook.com include:_custspf.one.com -all |
| Policy | Record (gapguard.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:_custspf.one.com -all |
| Policy | Record (_dmarc.gapguard.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:DMARC@Itnu.dk; ruf=mailto:DMARC@Itnu.dk; fo=1 |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com; cansignhttpexchanges=yes |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog; cansignhttpexchanges=yes |
| 0 | issue | ssl.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 | 104.21.61.193 172.67.213.88 2606:4700:3030::6815:3dc1 2606:4700:3036::ac43:d558 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network gapguard.dk: 104.21.61.193 172.67.213.88 2606:4700:3030::6815:3dc1 2606:4700:3036::ac43:d558 (AS13335) www.gapguard.dk: 104.21.61.193 172.67.213.88 2606:4700:3030::6815:3dc1 2606:4700:3036::ac43:d558 (AS13335) |
| 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-gapguard-dk._domainkey.itnu.w-v1.dkim.mail.microsoft | RSA · ~2048 bit |
| selector2 | selector2-gapguard-dk._domainkey.itnu.w-v1.dkim.mail.microsoft | 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: 2/10 · 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 | 2414706568 |
| Primary NS (MNAME) | elinore.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2026-04-06 |
| Expires | 2027-04-05 (168d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-18 15:03:49 | 2557ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-07 00:25:01 | 2928ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-25 22:00:54 | 1529ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-15 17:28:41 | 2107ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-15 09:50:07 shown | 2631ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-05 15:22:44 | 2056ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-22 14:17:05 | 1755ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-20 14:00:36 | 15385ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-12 10:31:14 | 17270ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-10 09:26:05 | 10519ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-23 18:28:06 | 7600ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-11 13:57:13 | 1036ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 10:33:15 | 1063ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 10:29:32 | 911ms | 2 NS 1 A 1 MX | 🔒 Secure |