syngre.dk is a .dk domain served by 2 nameservers (jocelyn.ns.cloudflare.com, norman.ns.cloudflare.com). It was registered on 3 May 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.183.138.100 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mx1.smtp.goog, mx2.smtp.goog and 2 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.183.138.100 | 300s | — | AS47292 | Sentia Denmark A/S | 46.183.138.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx1.smtp.goog | 2001:4860:4802:32::97 216.239.32.151 |
— — |
AS15169 Google LLC AS15169 Google LLC |
| 20 | 300s | mx2.smtp.goog | 2001:4860:4802:34::97 216.239.34.151 |
— — |
AS15169 Google LLC AS15169 Google LLC |
| 30 | 300s | mx3.smtp.goog | 2001:4860:4802:36::97 216.239.36.151 |
— — |
AS15169 Google LLC AS15169 Google LLC |
| 40 | 300s | mx4.smtp.goog | 2001:4860:4802:38::97 216.239.38.151 |
— — |
AS15169 Google LLC AS15169 Google LLC |
| TXT Record |
|---|
| \226\128\156google-site-verification=pddpR_xk82UH83G0O6f2W-ge_sRlHbv8CYVANmeBHh8\226\128\157 |
| openai-domain-verification=dv-ozZGqbSjo50hKK6BOHCAeXrz |
| v=spf1 include:_spf.google.com ~all |
| Policy | Record (syngre.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.google.com ~all |
| Policy | Record (_dmarc.syngre.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; rua=mailto:5tys7i2z@ag.eu.dmarcian.com,mailto:report.dmarc@syngre.dk; ruf=mailto:5tys7i2z@fr.eu.dmarcian.com,mailto:report.dmarc@syngre.dk; |
| Check | Result |
|---|---|
| Status | ⚠️ Invalid |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✗ Missing / invalid |
| Policy ID | 20210524164546DK |
| Policy MX | — |
| Status | Report address (rua) |
|---|---|
| ✓ Enabled | mailto:5tys7i2z@tls.eu.dmarcian.com, mailto:report.smtp-tls@syngre.dk |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:report.caa@syngre.dk |
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com; cansignhttpexchanges=yes |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog; cansignhttpexchanges=yes |
| 0 | issue | sectigo.com |
| 0 | issue | ssl.com |
| 0 | issuewild | comodoca.com |
| 0 | issuewild | digicert.com; cansignhttpexchanges=yes |
| 0 | issuewild | letsencrypt.org |
| 0 | issuewild | pki.goog; cansignhttpexchanges=yes |
| 0 | issuewild | ssl.com |
| www | 46.183.138.100 (AS47292) (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 | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | 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
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2415768879 |
| Primary NS (MNAME) | jocelyn.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2005-05-03 |
| Expires | 2036-05-31 (3503d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 22:14:44 | 1074ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-22 20:23:30 | 2870ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-14 15:36:51 | 1400ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-30 22:15:58 | 1855ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-29 08:34:02 | 2034ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-25 07:17:22 shown | 3984ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-24 15:53:41 | 1685ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-23 15:24:20 | 1242ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-21 07:21:51 | 2588ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-27 14:10:02 | 1293ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-08-20 15:24:33 | 10581ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-08-04 02:25:50 | 2782ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-08-01 17:25:48 | 9353ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-07-25 13:28:01 | 2013ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-07-15 08:26:20 | 9974ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-07-10 15:24:07 | 3691ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-06-30 16:53:26 | 1656ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-06-21 16:36:32 | 1387ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-06-21 08:18:17 | 1180ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 12:16:56 | 3775ms | 2 NS 2 A 4 MX | 🔒 Secure |