polylab.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 28 October 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 192.30.252.153 is hosted by GitHub, Inc. (AS36459) in United States. Mail is handled by mx.runbox.com. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 192.30.252.153 | 43200s | lb-192-30-252-153-iad.github.com | AS36459 | GitHub, Inc. | 192.30.252.0/22 | 🇺🇸 United States | — |
| 192.30.252.154 | 43200s | lb-192-30-252-154-iad.github.com | AS36459 | GitHub, Inc. | 192.30.252.0/22 | 🇺🇸 United States | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | mx.runbox.com | 185.226.149.25 | aibo.runbox.com | AS50304 Blix Solutions AS |
| TXT Record |
|---|
| v=spf1 redirect=spf.runbox.com |
| Policy | Record (polylab.dk) |
|---|---|
| redirect=spf.runbox.com | v=spf1 redirect=spf.runbox.com |
| www CNAME | rasmusrn.github.io (all on github.io) |
| www vs bare domain | Different networks polylab.dk: 192.30.252.153 192.30.252.154 (AS36459) (all like this)www.polylab.dk: 185.199.108.153 185.199.109.153 185.199.110.153 185.199.111.153 (AS54113) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 1/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.runbox.com | DANE-TA · SPKI · SHA-256 | B3FB5D00E994CDDF2CC9A4EEA9F806BC… |
| SMTP _25._tcp.mx.runbox.com | DANE-EE · SPKI · SHA-256 | 9A5D69227185C22FB9204903B517A029… |
| SMTP _25._tcp.mx.runbox.com | DANE-TA · SPKI · SHA-256 | 2E8307068B6DB620E4A39D068B5DEE5D… |
| SMTP _25._tcp.mx.runbox.com | DANE-TA · SPKI · SHA-256 | 51AAA87D984B559AC69E929F888A022D… |
| SMTP _25._tcp.mx.runbox.com | DANE-TA · SPKI · SHA-256 | 6EBCEFB4210B088654A38B03FEA3D7D1… |
| SMTP _25._tcp.mx.runbox.com | DANE-TA · SPKI · SHA-256 | 9D637B3D27A9E570D07607B9CCADB80A… |
| SMTP _25._tcp.mx.runbox.com | DANE-TA · SPKI · SHA-256 | A698A20824BE04E47A1A33C4FA488731… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100801 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2015-10-28 |
| Expires | 2026-10-31 (13d) |
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 |
|---|---|---|---|
| 2026-10-08 16:08:59 shown | 3285ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-24 13:43:06 | 737ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-10 10:12:48 | 753ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-06 05:36:50 | 694ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-09 12:45:09 | 1614ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-10 16:17:24 | 821ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-21 21:03:29 | 1237ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-19 14:19:41 | 7218ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-18 05:39:52 | 772ms | 2 NS 2 A 1 MX | 🔒 Secure |