roskildebib.dk is a .dk domain served by 2 nameservers (ns07.sac-it.dk, ns08.sac-it.dk). It was registered on 12 March 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 130.226.25.93 is hosted by IDDQD-AS (AS1835) in Denmark. Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 1 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns07.sac-it.dk | 85.235.243.63 | ns07.sac-it.dk | AS3308 Norlys Telco A/S |
| ns08.sac-it.dk | 128.76.60.63 | ns08.sac-it.dk | AS3292 TDC Holding A/S |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 130.226.25.93 | 60s | — | AS1835 | IDDQD-AS | 130.226.0.0/16 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| v=spf1 include:_roskildebib_dk.spf-protect.com -all |
| Policy | Record (roskildebib.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_roskildebib_dk.spf-protect.com -all |
| Policy | Record (_dmarc.roskildebib.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:62e273e779a2b@dmarc.centerasecurity.com; |
| www CNAME | roskildebib.dk (all on roskildebib.dk) → 130.226.25.93 (AS1835) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 1/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026090301 |
| Primary NS (MNAME) | ns07.sac-it.dk |
| Responsible (RNAME) | hostmaster@roskildebib.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | SAC-IT A/S |
| Registered | 1996-03-12 |
| Expires | 2027-03-31 (158d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-23 06:04:06 | 746ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-16 03:11:54 | 1086ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-08 13:28:48 | 2339ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-01 10:48:49 | 597ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-30 10:44:59 | 771ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-27 17:00:14 | 656ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-24 18:58:55 | 892ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-17 18:20:36 | 1023ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-10 16:51:07 | 971ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-07 03:01:30 shown | 1570ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-28 03:26:54 | 707ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-20 14:56:02 | 9455ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-13 19:23:58 | 1505ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-06 14:44:43 | 2461ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-30 12:20:40 | 1705ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-23 14:12:35 | 1066ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-17 11:52:44 | 1145ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-09 05:45:17 | 1558ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-03 15:27:13 | 794ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-27 07:35:03 | 902ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-23 23:34:18 | 767ms | 2 NS 1 A 3 MX | ⚠️ Bogus |
| 2026-06-18 10:37:32 | 1106ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-17 11:51:56 | 1491ms | 2 NS 1 A 3 MX | 🔒 Secure |