sde.dk is a .dk domain served by 2 nameservers (ns1.esis.dk, ns2.esis.dk). It was registered on 7 July 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.19.134.149 is hosted by Syddansk Erhvervsskole Odense-Vejle (AS199374) in Denmark. Mail is handled by sde-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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.esis.dk | 185.19.134.2 | ns1.esis.dk | AS199374 Syddansk Erhvervsskole Odense-Vejle |
| ns2.esis.dk | 185.19.134.3 | ns2.esis.dk | AS199374 Syddansk Erhvervsskole Odense-Vejle |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.19.134.149 | 3600s | eali.dk hovsa.eali.dk hovsa.sde-tv.dk test.eali.dk test.sde-tv.dk testdnssec.tuc-fyn.dk |
AS199374 | Syddansk Erhvervsskole Odense-Vejle | 185.19.132.0/22 | 🇩🇰 Denmark | Odense |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 185.19.134.44 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sip._tcp | 0 | 0 | 443 | sip.sde.dk |
| _sipfederationtls._tcp | 0 | 0 | 5061 | sip.sde.dk |
| TXT Record |
|---|
| 4ae9c241e774aefdf60e2593834d57a43a7d2affe46fdffba0 |
| adobe-idp-site-verification=42a470a786b08b1d0ebc38c4e47e68fa11a211afde2f4ee7c08d0a37e118af55 |
| apple-domain-verification=Sh7f9pYWHkgWBImM |
| autodesk-domain-verification=_VdcGVgPIz3pDOIq61zf |
| google-site-verification=_-Ski1tDgb0tpCLKGaKEtAgOCG7ke7KtdSSJzxenqGA |
| google-site-verification=cvfoixHRARbQPmPaNSbL92lVmwGG_W3uRT5hy0Fky6Y |
| google-site-verification=K2H-TPoq5jPiqiAgDhKH4sTB3yavOCcLf_IYY9W5kyg |
| google-site-verification=xMevZv6Ijtis1La61Nmlp8Zso9S2rj_68m0HkMHiQrg |
| have-i-been-pwned-verification=e81846d8be190966c2b0e13f78aa742a |
| JlHj2ogU2Lh7Cm1NzJu8ptG0CErrX/ooT7k9PMwYAetLd9gCXqa/jCoZ/OsTPFP76kNQOJLmspaVWJ1XxQZl9g== |
| MS=ms85527152 |
| SGBvnDGxIwN79RmNKVKMIzUyzPSysJPVbZLZVkNCBBaU9joA2InVONvDlivfv5z50tfdm+NKfZhikHr+X6cO6w== |
| sKMx45dPojkG8FwDL77l0kx8E5XEDMOx76PxkXjfo5WyoPieSgY7KdRt4NoxpTpnA8ntAEnVHiixxuiW/+grmg== |
| spycloud-domain-verification=4cee368e-7cc4-4c29-b43e-14bc1a02c79f |
| Tj8sXzoKqghl3zQve42PhJPb6rj86hdh6OlsU9Xuzk70ElyaMH4AATN/mY1Gv/BOzW6e+8EALxbIgtsreP3/6A== |
| v=msv1 t=8CDD755C-F6C3-47FB-AE05-48DEBD064D7E |
| v=spf1 ip4:185.19.134.44 ip4:217.195.184.68 ip4:194.30.34.86 ip4:212.49.142.16 ip4:212.49.142.17 ip4:195.16.132.104 ip4:195.16.140.232 include:servers.mcsv.net include:_spf.essenslms.com include:spf.gecko.dk include:spf.esis.dk -all |
| Policy | Record (sde.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:185.19.134.44 ip4:217.195.184.68 ip4:194.30.34.86 ip4:212.49.142.16 ip4:212.49.142.17 ip4:195.16.132.104 ip4:195.16.140.232 include:servers.mcsv.net include:_spf.essenslms.com include:spf.gecko.dk include:spf.esis.dk -all |
| Policy | Record (_dmarc.sde.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject;sp=reject;rua=mailto:be7762a8bd@rua.easydmarc.eu;ruf=mailto:be7762a8bd@ruf.easydmarc.eu;fo=1 |
| www CNAME | sde.dk (all on sde.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-sde-dk._domainkey.edusde.onmicrosoft.com | 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: 6/10 · 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 | 2021113770 |
| Primary NS (MNAME) | ns1.esis.dk |
| Responsible (RNAME) | hostmaster@esis.dk |
| Refresh | 900s |
| Retry | 600s |
| Expire | 86400s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1999-07-07 |
| Expires | 2031-09-30 (1809d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-16 09:18:43 | 1732ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-13 05:05:26 | 1410ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-12 02:24:34 | 1768ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-08 14:51:54 | 886ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-06 14:28:56 | 2479ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-04 13:43:10 | 4983ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 13:29:13 | 2599ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 12:15:30 | 1550ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 11:38:37 | 770ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 06:35:52 | 1042ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 06:25:06 | 1209ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 06:17:17 | 995ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-15 18:02:39 | 4054ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-08 16:35:08 | 1570ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-29 00:55:58 | 2813ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 22:15:57 | 1844ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 17:24:41 | 804ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-22 02:48:43 | 2562ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-21 02:44:22 | 6475ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-19 01:15:30 | 9259ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-16 21:31:01 shown | 1895ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-11 10:22:55 | 1276ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-09 16:51:34 | 4404ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-07 01:54:39 | 1727ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-27 07:39:53 | 1533ms | 2 NS 1 A 1 MX | 🔒 Secure |