s-inst.dk

Records from scan: 2026-10-04 11:37:14 · 1080ms total · last checked 2026-10-25 12:14 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

s-inst.dk is a .dk domain served by 2 nameservers (barbara.ns.cloudflare.com, justin.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.6.238 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by sinst-dk0c.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 38ms

Nameserver	IP addresses	PTR	ASN / ISP
barbara.ns.cloudflare.com	108.162.192.248 172.64.32.248 173.245.58.248 2606:4700:50::adf5:3af8 2803:f800:50::6ca2:c0f8 2a06:98c1:50::ac40:20f8	barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
justin.ns.cloudflare.com	108.162.193.187 172.64.33.187 173.245.59.187 2606:4700:58::adf5:3bbb 2803:f800:50::6ca2:c1bb 2a06:98c1:50::ac40:21bb	justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.6.238	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.135.119	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	sinst-dk0c.mail.protection.outlook.com	2a01:111:f403:ca04::f 2a01:111:f403:ca21::a 2a01:111:f403:ca3c::8 2a01:111:f403:ca48::a 52.101.103.143 52.101.185.21 52.101.68.21 52.101.73.126	mail-db7pr03cu00507.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-zrxpr05cu00100.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-am8pr83cu00106.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

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.149.136

🔷 AAAA Records (IPv6)#

2 records 40ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:8777	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:6ee	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 37ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.6.238,172.67.135.119 ech=AEX+DQBBYwAgACA6PkuRPS6xF3vzAy7bdYZAugj4np19oXE54qofM/VcSQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:8777,2606:4700:3034::6815:6ee

📝 TXT Records#

2 records 178ms

TXT Record
MS=ms94907939
v=spf1 include:spf.protection.outlook.com include:spf.curanet.dk ip4:193.8.36.0/22 -all

✉️ SPF#

Policy	Record (s-inst.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.curanet.dk ip4:193.8.36.0/22 -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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#

checked 2026-10-09 19:11:08

www	104.21.6.238 172.67.135.119 2606:4700:3030::ac43:8777 2606:4700:3034::6815:6ee (AS13335) (address records, no CNAME)
www vs bare domain	Same network s-inst.dk: 104.21.6.238 172.67.135.119 2606:4700:3030::ac43:8777 2606:4700:3034::6815:6ee (AS13335) www.s-inst.dk: 104.21.6.238 172.67.135.119 2606:4700:3030::ac43:8777 2606:4700:3034::6815:6ee (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

69ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

33ms

Field	Value
Serial	2414904470
Primary NS (MNAME)	barbara.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

38ms

34ms

29ms

AAAA

40ms

TXT

178ms

CAA

40ms

HTTPS

37ms

TLSA

590ms

SOA

33ms

MTA-STS

51ms

DNSSEC

69ms

SRV

56ms

Total

1080ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 11:37:14 shown	1080ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-26 19:38:53	10236ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-16 07:24:21	1399ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-04 13:40:53	2100ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-29 17:05:45	1250ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-28 07:21:34	1224ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-18 12:17:09	1474ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-18 04:26:12	1725ms	2 NS 2 A 1 MX	🔓 Insecure