jelber.dk is a .dk domain served by 2 nameservers (clark.ns.cloudflare.com, savanna.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.131 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 93.191.156.131 | 300s | linux248.unoeuro.com | AS48854 | team.blue Denmark A/S | 93.191.152.0/21 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| TXT Record |
|---|
| google-site-verification=SEG4z-fudhxaj52V03MG224ZRlMp8CUnmAVIFUzSY6I |
| google-site-verification=slbgzIa4eeywia1Um8vRXg2tucqN-nSgKh1TI7ghuVU |
| MS=ms60528635 |
| v=spf1 include:_spf.google.com include:spf.protection.outlook.com ~all |
| v=spf1 mx a ip4:139.162.150.13 include:_spf.google.com include:dedicated.mysmtp.com ~all |
| Policy | Record (jelber.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.google.com include:spf.protection.outlook.com ~all |
| ~all (soft fail) | v=spf1 mx a ip4:139.162.150.13 include:_spf.google.com include:dedicated.mysmtp.com ~all |
| Policy | Record (_dmarc.jelber.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; sp=none; adkim=r; aspf=r; rua=mailto:abuse@jelber.dk; ruf=mailto:abuse@jelber.dk; fo=0; pct=100; ri=86400 |
| www | 93.191.156.131 (AS48854) (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 | Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~2048 bit |
| s1 | s1.domainkey.u53504533.wl034.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u53504533.wl034.sendgrid.net | 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
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2416295312 |
| Primary NS (MNAME) | clark.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 20:33:59 shown | 2112ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-09-30 20:18:58 | 930ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-09-23 19:00:35 | 1137ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-09-14 19:08:13 | 2215ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-09-08 00:58:24 | 10044ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-30 07:59:22 | 943ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-07 09:55:26 | 9666ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-02 22:24:24 | 9551ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-07-16 04:16:54 | 1417ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-07-12 13:13:58 | 1329ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-06-19 00:47:41 | 1425ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-06-17 21:56:36 | 912ms | 2 NS 1 A 5 MX | 🔓 Insecure |