klarcalc.dk

📜 Historical scan 2026-07-27 10:24:39 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

klarcalc.dk is a .dk domain served by 2 nameservers (elma.ns.cloudflare.com, lennox.ns.cloudflare.com). It was registered on 4 February 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.10.150 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by klarcalc-dk.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 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
elma.ns.cloudflare.com	108.162.192.154 172.64.32.154 173.245.58.154 2606:4700:50::adf5:3a9a 2803:f800:50::6ca2:c09a 2a06:98c1:50::ac40:209a	elma.ns.cloudflare.com elma.ns.cloudflare.com elma.ns.cloudflare.com elma.ns.cloudflare.com elma.ns.cloudflare.com elma.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
lennox.ns.cloudflare.com	108.162.195.214 162.159.44.214 172.64.35.214 2606:4700:58::a29f:2cd6 2803:f800:50::6ca2:c3d6 2a06:98c1:50::ac40:23d6	lennox.ns.cloudflare.com lennox.ns.cloudflare.com lennox.ns.cloudflare.com lennox.ns.cloudflare.com lennox.ns.cloudflare.com lennox.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 31ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.10.150	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.163.156	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	klarcalc-dk.mail.protection.outlook.com	2a01:111:f403:ca04::8 2a01:111:f403:ca04::e 2a01:111:f403:ca09::1 2a01:111:f403:ca09::20 52.101.68.15 52.101.73.11 52.101.73.15 52.101.73.153	mail-db5pr02cu00100.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as8pr05cu00401.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	104.21.10.150

🔷 AAAA Records (IPv6)#

2 records 31ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:a96	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::ac43:a39c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 48ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.10.150,172.67.163.156 ech=AEX+DQBBQQAgACDa5Y+pwYgsBvMsZvNySLrxMbVZXXpxrMQYHthO5m1uEAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:a96,2606:4700:3031::ac43:a39c

📝 TXT Records#

2 records 176ms

TXT Record
MS=ms72939522
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (klarcalc.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -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#

latest probe, not this scan · checked 2026-10-15 00:46:49

www	104.21.10.150 172.67.163.156 2606:4700:3030::6815:a96 2606:4700:3031::ac43:a39c (AS13335) (address records, no CNAME)
www vs bare domain	Same network klarcalc.dk: 104.21.10.150 172.67.163.156 2606:4700:3030::6815:a96 2606:4700:3031::ac43:a39c (AS13335) www.klarcalc.dk: 104.21.10.150 172.67.163.156 2606:4700:3030::6815:a96 2606:4700:3031::ac43:a39c (AS13335)
Wildcard	No

🔎 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#

59ms

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	2410557525
Primary NS (MNAME)	elma.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-06 09:44:11

Field	Value
Registrar	InterNetX GmbH
Registered	2021-02-04
Expires	2027-02-28 (130d)

📋 WHOIS#

⏱️ Lookup Timing#

31ms

AAAA

31ms

TXT

176ms

CAA

30ms

HTTPS

48ms

TLSA

875ms

SOA

0ms

MTA-STS

47ms

DNSSEC

59ms

SRV

55ms

Total

2054ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 11:58:48	2254ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-06 09:29:00	2436ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 05:38:10	1424ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-08 16:59:35	2234ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 23:41:53	1335ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 11:37:29	1834ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-09 17:53:52	1753ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-07 10:42:05	3692ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-27 10:24:39 shown	2054ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-16 09:40:57	9932ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-03 12:12:58	1060ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-27 19:31:22	1063ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-21 03:12:56	1098ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-18 08:46:54	1136ms	2 NS 2 A 1 MX	🔓 Insecure