1stlevel.dk is a .dk domain served by 2 nameservers (blair.ns.cloudflare.com, frank.ns.cloudflare.com). It was registered on 20 January 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.48.87 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by addvision-dk.mx1-dk.mailanyone.net, addvision-dk.mx2-dk.mailanyone.net and 1 more. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.48.87 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.183.8 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.152 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::ac43:b708 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::6815:3057 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.48.87,172.67.183.8 ech=AEX+DQBBXwAgACCplMuWd4NkksPyWK/21mR95dZwaYAxDnG1cFNA2PCnOAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:b708,2606:4700:3036::6815:3057 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms45589127 |
| MS=ms96120491 |
| v=spf1 a ip4:94.18.210.72 ip4:152.115.188.122 ip4:152.115.188.124 ip4:94.18.210.66 ip4:188.120.78.194 ip4:94.18.210.68 ip4:188.120.78.235 ip4:188.120.78.250 include:spf.protection.outlook.com include:servers.mcsv.net include:spf.mailanyone.net include:spf.eu.signature365.net -all |
| vpe=82cef861 |
| Policy | Record (1stlevel.dk) |
|---|---|
| -all (hard fail) | v=spf1 a ip4:94.18.210.72 ip4:152.115.188.122 ip4:152.115.188.124 ip4:94.18.210.66 ip4:188.120.78.194 ip4:94.18.210.68 ip4:188.120.78.235 ip4:188.120.78.250 include:spf.protection.outlook.com include:servers.mcsv.net include:spf.mailanyone.net include:spf.eu.signature365.net -all |
| Policy | Record (_dmarc.1stlevel.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:o8bxj2cx@ag.dmarcian.eu; ruf=mailto:o8bxj2cx@fr.dmarcian.eu |
| www | 104.21.48.87 172.67.183.8 2606:4700:3034::ac43:b708 2606:4700:3036::6815:3057 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network 1stlevel.dk: 104.21.48.87 172.67.183.8 2606:4700:3034::ac43:b708 2606:4700:3036::6815:3057 (AS13335) www.1stlevel.dk: 104.21.48.87 172.67.183.8 2606:4700:3034::ac43:b708 2606:4700:3036::6815:3057 (AS13335) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| k1 | dkim.mcsv.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.
DNS lookups: 5/10 · 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 | 2416477319 |
| Primary NS (MNAME) | blair.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ASCIO TECHNOLOGIES, CORP. DANMARK - FILIAL AF ASCIO TECHNOLOGIES, CORP. CANADA |
| Registered | 2009-01-20 |
| Expires | 2027-01-31 (106d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 11:02:50 | 944ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-04 02:22:27 shown | 2358ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-03 02:21:12 | 602ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-02 02:19:13 | 1139ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-27 01:16:00 | 1071ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-03 15:39:52 | 2913ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-26 02:59:30 | 5298ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-24 09:35:52 | 1166ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-23 06:59:33 | 1142ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 12:43:17 | 765ms | 2 NS 2 A 3 MX | 🔓 Insecure |