sb-it.dk

📜 Historical scan 2026-07-28 04:33:45 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sb-it.dk is a .dk domain served by 2 nameservers (melina.ns.cloudflare.com, melnicoff.ns.cloudflare.com). It was registered on 9 October 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.25.114 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by sbit-dk0e.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 28ms

Nameserver	IP addresses	PTR	ASN / ISP
melina.ns.cloudflare.com	108.162.194.184 162.159.38.184 172.64.34.184 2606:4700:50::a29f:26b8 2803:f800:50::6ca2:c2b8 2a06:98c1:50::ac40:22b8	melina.ns.cloudflare.com melina.ns.cloudflare.com melina.ns.cloudflare.com melina.ns.cloudflare.com melina.ns.cloudflare.com melina.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
melnicoff.ns.cloudflare.com	108.162.195.174 162.159.44.174 172.64.35.174 2606:4700:58::a29f:2cae 2803:f800:50::6ca2:c3ae 2a06:98c1:50::ac40:23ae	melnicoff.ns.cloudflare.com melnicoff.ns.cloudflare.com melnicoff.ns.cloudflare.com melnicoff.ns.cloudflare.com melnicoff.ns.cloudflare.com melnicoff.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 64ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.25.114	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.134.48	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 58ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	sbit-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca04::f 2a01:111:f403:ca09::2 2a01:111:f403:ca09::6 52.101.68.21 52.101.68.3 52.101.68.32 52.101.73.26	mail-du0pr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-as9pr05cu01302.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 → 40.104.116.8

🔷 AAAA Records (IPv6)#

2 records 68ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::ac43:8630	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:1972	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 60ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.25.114,172.67.134.48 ech=AEX+DQBB9wAgACDDf+Id75l1r6A5addxWuyipYao542ZLeCouS2s+8NSYQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:8630,2606:4700:3037::6815:1972

📝 TXT Records#

2 records 151ms

TXT Record
MS=ms79571766
v=spf1 include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (sb-it.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com ~all

📨 DMARC#

Policy	Record (_dmarc.sb-it.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:3a6fd8b53ebf4720b025a28d99ba7d35@dmarc-reports.cloudflare.net,mailto:it@sb-it.dk

📬 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 2026-10-20 09:14:23

www	104.21.25.114 172.67.134.48 2606:4700:3035::ac43:8630 2606:4700:3037::6815:1972 (AS13335) (address records, no CNAME)
www vs bare domain	Same network sb-it.dk: 104.21.25.114 172.67.134.48 2606:4700:3035::ac43:8630 2606:4700:3037::6815:1972 (AS13335) www.sb-it.dk: 104.21.25.114 172.67.134.48 2606:4700:3035::ac43:8630 2606:4700:3037::6815:1972 (AS13335)
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

✍️ DKIM keys#

3 found

Selector	CNAME	Key
s1	s1.domainkey.u41851690.wl191.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u41851690.wl191.sendgrid.net	RSA · ~2048 bit
selector1	selector1-sbit-dk0e._domainkey.sbitv.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: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

185ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2410605047
Primary NS (MNAME)	melina.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-15 02:49:10

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2022-10-09
Expires	2027-10-08 (353d)

📋 WHOIS#

⏱️ Lookup Timing#

28ms

64ms

58ms

AAAA

68ms

TXT

151ms

CAA

54ms

HTTPS

60ms

TLSA

2701ms

SOA

0ms

MTA-STS

46ms

DNSSEC

185ms

SRV

77ms

Total

4046ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-20 09:14:23	2136ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-26 10:34:31	881ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-25 10:28:35	1103ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-10 18:00:14	2801ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-03 16:04:39	3476ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-01 00:54:40	11287ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-28 11:13:00	1194ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-10 10:22:19	17432ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-28 04:33:45 shown	4046ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-17 20:33:52	1407ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-07 02:08:34	2666ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-25 22:59:44	2023ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-23 16:43:08	1020ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 21:23:39	4681ms	2 NS 2 A 1 MX	🔒 Secure