steffenrosendahl.dk is a .dk domain served by 2 nameservers (ns1.messagingengine.com, ns2.messagingengine.com). It was registered on 23 July 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 103.168.172.37 is hosted by Fastmail Pty Ltd (AS151847) in United States. Mail is handled by eu1-smtp.messagingengine.com, eu2-smtp.messagingengine.com. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|
| ns1.messagingengine.com | 162.159.24.178 | ns1.messagingengine.com | AS13335 Cloudflare, Inc. |
| ns2.messagingengine.com | 162.159.25.191 | ns2.messagingengine.com | AS13335 Cloudflare, Inc. |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 103.168.172.37 | 3600s | www.messagingengine.com | AS151847 | Fastmail Pty Ltd | 103.168.172.0/24 | 🇺🇸 United States | Philadelphia |
| 103.168.172.52 | 3600s | www.messagingengine.com | AS151847 | Fastmail Pty Ltd | 103.168.172.0/24 | 🇺🇸 United States | Philadelphia |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 103.168.172.37 |
| 🔶 Autoconfig | 103.168.172.37 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 1 | 443 | autodiscover.fastmail.com |
| _imaps._tcp | 0 | 1 | 993 | imap.fastmail.com |
| TXT Record |
|---|
| v=spf1 include:spf.messagingengine.com ?all |
| Policy | Record (steffenrosendahl.dk) |
|---|---|
| ?all (neutral) | v=spf1 include:spf.messagingengine.com ?all |
| Policy | Record (_dmarc.steffenrosendahl.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | steffenrosendahl.netlify.app (all on netlify.app) |
| www vs bare domain | Same network steffenrosendahl.dk: 75.2.60.5 (AS16509) www.steffenrosendahl.dk: 35.157.26.135 63.176.8.218 2a05:d014:58f:6200::258 2a05:d014:58f:6200::259 (AS16509) |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 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: 1/10 · policy: ?all
| 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 | 2026080500 |
| Primary NS (MNAME) | ns1.messagingengine.com |
| Responsible (RNAME) | postmaster@messagingengine.com |
| Refresh | 86394s |
| Retry | 600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2023-07-23 |
| Expires | 2027-07-22 (269d) |
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 |
|---|---|---|---|
| 2026-10-22 14:59:50 | 814ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-20 11:28:47 | 843ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-19 06:22:14 | 569ms | 3 NS 0 A 2 MX | 🔓 Insecure |
| 2026-10-12 21:04:29 | 1573ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-09 16:52:03 | 3088ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-06 15:36:06 | 4154ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-03 14:28:04 | 1916ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-24 21:14:36 | 9887ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-19 08:55:38 | 2804ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-11 16:16:12 | 2960ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-04 11:59:58 | 10196ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-28 09:53:39 | 10409ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-26 12:44:42 | 3062ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-19 22:43:26 | 33599ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-08 14:48:57 | 3336ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-07 05:18:07 shown | 3494ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-06 22:11:24 | 2005ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-25 05:01:19 | 729ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-23 06:42:14 | 1172ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 06:06:39 | 807ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-17 13:37:52 | 2212ms | 3 NS 0 A 1 MX | 🔒 Secure |