rcs-it.dk

📜 Historical scan 2026-06-19 10:59:19 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rcs-it.dk is a .dk domain served by 2 nameservers (crystal.ns.cloudflare.com, jaziel.ns.cloudflare.com). It was registered on 27 May 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.215.161.69 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by rcsit-dk0i.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 31ms

Nameserver	IP addresses	PTR	ASN / ISP
crystal.ns.cloudflare.com	108.162.194.202 162.159.38.202 172.64.34.202 2606:4700:50::a29f:26ca 2803:f800:50::6ca2:c2ca 2a06:98c1:50::ac40:22ca	crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
jaziel.ns.cloudflare.com	108.162.195.55 162.159.44.55 172.64.35.55 2606:4700:58::a29f:2c37 2803:f800:50::6ca2:c337 2a06:98c1:50::ac40:2337	jaziel.ns.cloudflare.com jaziel.ns.cloudflare.com jaziel.ns.cloudflare.com jaziel.ns.cloudflare.com jaziel.ns.cloudflare.com jaziel.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
91.215.161.69	1800s	relayingsmtp.wtm-rcs.dk	AS47292	Sentia Denmark A/S	91.215.160.0/22	🇩🇰 Denmark	Silkeborg

📧 MX Records#

1 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	rcsit-dk0i.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca09::1 2a01:111:f403:ca09::5 2a01:111:f403:ca09::8 52.101.68.25 52.101.68.3 52.101.73.16 52.101.73.26	mail-db4pr02cu00406.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-as2pr05cu00100.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 → 40.104.116.56

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 231ms

TXT Record
MS=ms77458075
v=spf1 a mx include:spf.mtaroutes.com include:spf.protection.outlook.com include:_custspf.one.com ip4:91.215.163.48/29 ip4:91.215.161.24/29 -all

✉️ SPF#

Policy	Record (rcs-it.dk)
-all (hard fail)	v=spf1 a mx include:spf.mtaroutes.com include:spf.protection.outlook.com include:_custspf.one.com ip4:91.215.163.48/29 ip4:91.215.161.24/29 -all

📨 DMARC#

Policy	Record (_dmarc.rcs-it.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:5ygyuzpu@ag.dmarcian-eu.com; ruf=mailto:dmarc-reports@rcs.dk; aspf=s; adkim=s; sp=quarantine; fo=1; ri=86400; pct=100

📬 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 2026-10-10 05:26:14

www CNAME	rcs-it.dk (all on rcs-it.dk) → 91.215.161.69 (AS47292)
www vs bare domain	Same network rcs-it.dk: 91.215.161.69 (AS47292) www.rcs-it.dk: 91.215.161.69 (AS47292)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

122ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2407201912
Primary NS (MNAME)	crystal.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-09-19 00:20:54

Field	Value
Registrar	ONE.COM A/S
Registered	2008-05-27
Expires	2027-05-31 (225d)

📋 WHOIS#

⏱️ Lookup Timing#

31ms

32ms

45ms

AAAA

26ms

TXT

231ms

CAA

32ms

HTTPS

29ms

TLSA

195ms

SOA

0ms

MTA-STS

49ms

DNSSEC

122ms

SRV

273ms

Total

1201ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-24 00:08:31	910ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-19 00:18:39	1509ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-11 22:22:15	1851ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-06 18:05:53	2160ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-30 16:20:34	2260ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-26 10:04:23	2189ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-25 11:17:23	743ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-23 21:21:18	2245ms	2 NS 1 A 1 MX	❓ Unknown
2026-07-13 19:15:32	2101ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-08 16:49:08	11023ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-27 20:19:15	1835ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-19 10:59:19 shown	1201ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 12:06:44	1815ms	2 NS 1 A 1 MX	🔓 Insecure