ots.dk

📜 Historical scan 2026-10-08 17:28:23 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ots.dk is a .dk domain served by 2 nameservers (ns1.esis.dk, ns2.esis.dk). It was registered on 22 March 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.19.135.96 is hosted by Syddansk Erhvervsskole Odense-Vejle (AS199374) in Denmark. Mail is handled by ots-dk.mail.protection.outlook.com, mail.messaging.microsoft.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.

🖥️ Nameservers#

2 records 39ms

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

🌍 A Records#

1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.19.135.96	3600s	10grindsted.dk 10nordfyn.dk brobygning.sde.dk gdprkursus.sde.dk ikt.sde.dk it.sde.dk ittester.sde.dk learn.otg.dk learn.vtg.dk medarbejderplan.sde.dk ots.dk praktik.esis.dk praktikplads.esis.dk sdeicon.sde.dk skiftkode.sde.dk study.sde.dk www.10grindsted.dk www.10nordfyn.dk www.ots.dk	AS199374	Syddansk Erhvervsskole Odense-Vejle	185.19.132.0/22	🇩🇰 Denmark	Copenhagen

📧 MX Records#

2 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	ots-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::4 2a01:111:f403:ca09::28 2a01:111:f403:ca21::e 52.101.209.153 52.101.68.29 52.101.73.123 52.101.91.159	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-matpr04cu00207.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation
10	3600s	mail.messaging.microsoft.com	—	—	—

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 200ms

TXT Record
MS=ms63633862
v=msv1 t=8CDD755C-F6C3-47FB-AE05-48DEBD064D7E
v=spf1 ip4:185.19.134.44 ip4:195.231.242.5 ip4:195.231.242.6 ip4:195.231.242.7 ip4:195.231.242.8 ip4:195.231.242.15 ip4:195.231.242.115 include:spf.esis.dk -all

✉️ SPF#

Policy	Record (ots.dk)
-all (hard fail)	v=spf1 ip4:185.19.134.44 ip4:195.231.242.5 ip4:195.231.242.6 ip4:195.231.242.7 ip4:195.231.242.8 ip4:195.231.242.15 ip4:195.231.242.115 include:spf.esis.dk -all

📨 DMARC#

Policy	Record (_dmarc.ots.dk)
p=reject	v=DMARC1;p=reject;sp=reject;rua=mailto:be7762a8bd@rua.easydmarc.eu;ruf=mailto:be7762a8bd@ruf.easydmarc.eu;fo=1

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-12 01:02:30

www	185.19.135.96 (AS199374) (address records, no CNAME)
www vs bare domain	Same network ots.dk: 185.19.135.96 (AS199374) www.ots.dk: 185.19.135.96 (AS199374)
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

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-ots-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.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

121ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

68ms

Field	Value
Serial	2009090895
Primary NS (MNAME)	ns1.esis.dk
Responsible (RNAME)	hostmaster@esis.dk
Refresh	900s
Retry	600s
Expire	86400s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-06 17:30:27

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1996-03-22
Expires	2035-03-31 (3087d)

📋 WHOIS#

⏱️ Lookup Timing#

39ms

43ms

35ms

AAAA

40ms

TXT

200ms

CAA

32ms

HTTPS

32ms

TLSA

161ms

SOA

68ms

MTA-STS

59ms

DNSSEC

121ms

SRV

72ms

Total

1017ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 01:02:29	2573ms	2 NS 1 A 2 MX	🔒 Secure
2026-10-08 17:28:23 shown	1017ms	2 NS 1 A 2 MX	🔒 Secure
2026-10-06 17:04:05	1257ms	2 NS 1 A 2 MX	🔒 Secure
2026-10-01 13:33:37	4467ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-30 13:17:04	758ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-30 04:17:02	1117ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-26 03:34:47	940ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-23 00:07:12	1165ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-16 00:31:26	4074ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-08 22:26:00	1480ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-02 11:02:41	1541ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-28 11:56:35	3347ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-27 11:42:31	1288ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-26 20:25:20	3362ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-22 14:33:22	1840ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-19 07:15:20	9452ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-18 06:21:59	3240ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-12 23:25:46	2935ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-11 02:59:53	1254ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-06 17:37:08	1366ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-03 20:12:47	1528ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-31 04:59:42	9051ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-26 05:35:08	1294ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-25 05:12:29	9164ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-22 00:09:14	1356ms	2 NS 1 A 2 MX	🔒 Secure