chr-ringsmose.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 1 August 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.133 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mail.tutanota.de. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 77.111.240.133 | 3600s | webcluster6.webpod11-cph3.one.com | AS51468 | One.com A/S | 77.111.240.0/22 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | mail.tutanota.de | 185.205.69.211 185.205.69.213 185.205.69.214 |
mail.w11.tutanota.de mail.w13.tutanota.de mail.w14.tutanota.de |
AS210909 Tutao GmbH AS210909 Tutao GmbH AS210909 Tutao GmbH |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:102:2d:d985:2cc8:86b8 | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| TXT Record |
|---|
| t-verify=0c307d8b4a3ed3965037834837f9a1e5 |
| v=spf1 include:spf.tutanota.de include:_custspf.one.com -all |
| Policy | Record (chr-ringsmose.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.tutanota.de include:_custspf.one.com -all |
| Policy | Record (_dmarc.chr-ringsmose.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; adkim=s |
| Check | Result |
|---|---|
| Status | 🔒 Enforce |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✓ Valid |
| Mode | enforce |
| Policy ID | 20190723 |
| max_age | 86400s |
| Policy MX | mail.tutanota.de |
| www | 77.111.240.133 2a02:2350:5:102:2d:d985:2cc8:86b8 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network chr-ringsmose.dk: 77.111.240.133 2a02:2350:5:102:2d:d985:2cc8:86b8 (AS51468) www.chr-ringsmose.dk: 77.111.240.133 2a02:2350:5:102:2d:d985:2cc8:86b8 (AS51468) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.tutanota.de | RSA · ~2048 bit |
| s2 | s2.domainkey.tutanota.de | 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
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.tutanota.de | DANE-EE · SPKI · SHA-256 | 5AE0D6DC8A713441003F578C5A1D4D70… |
| SMTP _25._tcp.mail.tutanota.de | DANE-EE · Full cert · SHA-256 | D141F8F3A4AAC2E4D2677AAFCC723D8E… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100301 |
| 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 | Punktum dk A/S (direct) |
| Registered | 2015-08-01 |
| Expires | 2027-08-31 (317d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-03 22:50:17 shown | 1939ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-17 03:43:57 | 1674ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-03 16:06:17 | 729ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-12 13:04:08 | 5030ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-04 20:11:02 | 2002ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-18 00:46:42 | 1178ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-01 21:42:49 | 915ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 01:45:02 | 1171ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 20:35:50 | 870ms | 2 NS 1 A 1 MX | 🔒 Secure |