selejebolig.dk is a .dk domain served by 2 nameservers (melina.ns.cloudflare.com, neil.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.4.186 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 104.21.4.186 | 600s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.132.91 | 600s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | mx1.onlinemail.io | 185.21.42.12 | mx1.onlinemail.io | AS48854 team.blue Denmark A/S |
| 20 | 600s | mx2.onlinemail.io | 46.36.208.16 | mx2.onlinemail.io | AS48854 team.blue Denmark A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::ac43:845b | 600s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3034::6815:4ba | 600s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.4.186,172.67.132.91 ech=AEX+DQBB3gAgACC/JW52rX0qZ7HM8F0xex53xT7D0p0titeGMvPLGtLuLAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:845b,2606:4700:3034::6815:4ba |
| TXT Record |
|---|
| google-site-verification=qwKfS9uic3QaBUy1s6_T0k4sv7x9_I24HnGLGXYjanM |
| www | 104.21.4.186 172.67.132.91 2606:4700:3035::ac43:845b 2606:4700:3036::6815:4ba (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network selejebolig.dk: 104.21.4.186 172.67.132.91 2606:4700:3035::ac43:845b 2606:4700:3036::6815:4ba (AS13335) www.selejebolig.dk: 104.21.4.186 172.67.132.91 2606:4700:3035::ac43:845b 2606:4700:3036::6815:4ba (AS13335) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u19587364.wl115.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u19587364.wl115.sendgrid.net | RSA · ~1024 bit below 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.
| 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 | 2405223959 |
| Primary NS (MNAME) | melina.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-27 03:49:28 | 2489ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-23 12:44:13 | 690ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-21 10:16:39 | 1464ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-25 10:59:57 | 613ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-24 09:33:14 | 1368ms | 2 NS 2 A 2 MX | ❓ Unknown |
| 2026-06-27 04:59:13 | 900ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-27 03:36:01 | 903ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-20 14:09:18 shown | 595ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-18 04:31:21 | 1832ms | 2 NS 2 A 2 MX | 🔓 Insecure |