rn.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 27 January 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.53.131.10 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by rn-dk.mail.protection.outlook.com. 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 |
|---|---|---|---|---|---|---|---|
| 87.53.131.10 | 384s | — | AS3292 | TDC Holding A/S | 87.48.0.0/13 | 🇩🇰 Denmark | Silkeborg |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 132.245.230.36 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 0 | 0 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| _0oceu2zpw4c8943mkhcq5htlj3etf4x |
| _fvgiad7z5w3c0n3s5vjuvs9nsrbllxy |
| _utdlwv97rbivfl4vogd24zqkatpb3w9 |
| apple-domain-verification=kjIiyumBnh6cBplm |
| asv=fdc58117e567ec01485a1010ffe096c7 |
| atlassian-domain-verification=U/S4mn0Nk5PTXc9aXThkSPgaw48WmBahkTP2nEl9YcSIlQZjBWBwp5cyGRVRlmY3 |
| DomainVerification=IL81B4FFLF3Y6QX3GPUVKYU0926GFKAEWZ0UWNA82C7QTMDO2YDQ9T0A6RYA83IZ |
| google-site-verification=H6GPZBDhji0XBNUCIKptWoU3puXPT_sQf4AX1Lw6Rag |
| have-i-been-pwned-verification=dweb_nho8q5b6rrt6bmn2vopifyp6 |
| samsung-domain-verification=8f19435b-5cb6-4a44-9698-0b0021d26ae9 |
| v=spf1 include:o._spf.hostedsepo.dk include:spf.protection.outlook.com include:sendgrid.net a:c.spf.service-now.com include:_spf-hosting.eg.dk include:essprod0.templafy-ess.com ip4:62.70.4.47 ip4:80.196.242.132 ip4:80.196.242.133 ip4:80.196.242.200 ip4:81.207.100.149 ip4:95.128.25.130 ip4:104.40.144.230 ip4:176.22.243.23 ip4:176.22.243.91 ip4:185.101.89.170 ip4:199.91.137.8/29 ip4:94.130.228.67 ip4:185.31.77.170 ip4:185.31.77.172 ip4:185.31.76.171 ip4:185.31.78.25 ip4:185.31.79.183 ip4:185.31.79.168 ip4:212.98.103.125 ip4:212.88.77.41 ip4:212.88.77.42 ip4:93.90.117.1/24 iP4:185.163.188.0/24 ip4:86.58.133.128/25 ip4:93.90.115.1/24 ip4:185.163.188.0/23 ip4:147.29.236.1 ip4:147.29.238.1 ip4:94.231.96.0/20 ip4:188.244.78.174 ip4:87.118.67.8 ip4:76.22.243.91 ip4:77.247.70.244 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.0.0/16 ip4:5.79.88.64/26 ip4:5.79.99.192/26 ip4:89.188.72.237 ip4:149.72.220.174 ip4:87.53.131.96 ip4:157.90.15.36 ip4:188.244.78.161 ~all |
| w2p9tvmqsvh0nqzw36697gkz0mmrqzwq |
| Policy | Record (rn.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:o._spf.hostedsepo.dk include:spf.protection.outlook.com include:sendgrid.net a:c.spf.service-now.com include:_spf-hosting.eg.dk include:essprod0.templafy-ess.com ip4:62.70.4.47 ip4:80.196.242.132 ip4:80.196.242.133 ip4:80.196.242.200 ip4:81.207.100.149 ip4:95.128.25.130 ip4:104.40.144.230 ip4:176.22.243.23 ip4:176.22.243.91 ip4:185.101.89.170 ip4:199.91.137.8/29 ip4:94.130.228.67 ip4:185.31.77.170 ip4:185.31.77.172 ip4:185.31.76.171 ip4:185.31.78.25 ip4:185.31.79.183 ip4:185.31.79.168 ip4:212.98.103.125 ip4:212.88.77.41 ip4:212.88.77.42 ip4:93.90.117.1/24 iP4:185.163.188.0/24 ip4:86.58.133.128/25 ip4:93.90.115.1/24 ip4:185.163.188.0/23 ip4:147.29.236.1 ip4:147.29.238.1 ip4:94.231.96.0/20 ip4:188.244.78.174 ip4:87.118.67.8 ip4:76.22.243.91 ip4:77.247.70.244 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.0.0/16 ip4:5.79.88.64/26 ip4:5.79.99.192/26 ip4:89.188.72.237 ip4:149.72.220.174 ip4:87.53.131.96 ip4:157.90.15.36 ip4:188.244.78.161 ~all |
| Policy | Record (_dmarc.rn.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject;rua=mailto:w6y9biqi@ag.eu.dmarcadvisor.com; |
| www | 87.53.131.10 (AS3292) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| k1 | dkim.mcsv.net | RSA · ~1024 bit below 2048 bit |
| s1 | s1.domainkey.u16178571.wl072.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u16178571.wl072.sendgrid.net | RSA · ~1024 bit below 2048 bit |
| selector1 | selector1-rn-dk._domainkey.rncloud.onmicrosoft.com | RSA · ~1024 bit below 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: 7/10 · policy: ~all
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026080701 |
| Primary NS (MNAME) | ns.dandomain.dk |
| Responsible (RNAME) | hostmaster@dandomain.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | DANDOMAIN A/S |
| Registered | 2004-01-27 |
| Expires | 2028-01-31 (468d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 17:14:00 | 2179ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-09 04:29:51 | 1525ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-08 04:26:33 | 1263ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 06:33:47 | 1170ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 03:08:06 | 1637ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-15 22:22:49 | 1061ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-13 02:31:20 | 1264ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-06 04:27:56 | 1037ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-01 04:11:43 | 997ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-13 01:04:51 | 4592ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-11 16:56:18 | 9140ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-08 00:24:27 shown | 1087ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-09 03:57:55 | 2375ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-29 23:08:12 | 1051ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 19:51:03 | 994ms | 2 NS 1 A 1 MX | 🔒 Secure |