asergo.dk is a .dk domain served by 2 nameservers (igor.ns.cloudflare.com, nina.ns.cloudflare.com). It was registered on 17 January 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.74.198 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.74.198 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.206.55 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:4ac6 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::ac43:ce37 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.74.198,172.67.206.55 ech=AEX+DQBBdgAgACC7NHezHqFBNFro+vk3NhHMRFosyT3UWUbkmiJNsAUPSAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:4ac6,2606:4700:3036::ac43:ce37 |
| TXT Record |
|---|
| google-site-verification=x3DwdTBW0Flw1jLIsIUQaRFkzW163MiIw_k9l2HSEoM |
| v=spf1 ip4:82.103.152.170 ip4:82.103.152.171 ip4:82.103.152.181 ip4:82.103.152.195 ~all |
| Policy | Record (asergo.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:82.103.152.170 ip4:82.103.152.171 ip4:82.103.152.181 ip4:82.103.152.195 ~all |
| Policy | Record (_dmarc.asergo.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| www | 104.21.74.198 172.67.206.55 2606:4700:3030::6815:4ac6 2606:4700:3036::ac43:ce37 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| dkim | — | 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: 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 | 2407322540 |
| Primary NS (MNAME) | igor.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Key-Systems GmbH |
| Registered | 2017-01-17 |
| Expires | 2028-01-31 (470d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-17 04:47:10 | 2175ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-16 03:38:07 | 2775ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-25 22:24:50 | 572ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-22 02:33:19 | 824ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-17 18:00:10 | 1623ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-08 14:45:13 | 3032ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-29 23:47:55 | 507ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-18 01:20:06 | 1902ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-16 20:01:53 | 6150ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 19:23:22 shown | 2710ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-23 18:54:57 | 911ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 09:37:07 | 1106ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 13:44:22 | 651ms | 2 NS 2 A 1 MX | 🔓 Insecure |