mc45.dk

📜 Historical scan 2026-06-18 00:26:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

mc45.dk is a .dk domain served by 2 nameservers (gabriella.ns.cloudflare.com, mitch.ns.cloudflare.com). It was registered on 10 October 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. The zone is not DNSSEC-signed, 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 102ms

Nameserver	IP addresses	PTR	ASN / ISP
gabriella.ns.cloudflare.com	108.162.194.134 162.159.38.134 172.64.34.134 2606:4700:50::a29f:2686 2803:f800:50::6ca2:c286 2a06:98c1:50::ac40:2286	gabriella.ns.cloudflare.com gabriella.ns.cloudflare.com gabriella.ns.cloudflare.com gabriella.ns.cloudflare.com gabriella.ns.cloudflare.com gabriella.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
mitch.ns.cloudflare.com	108.162.193.208 172.64.33.208 173.245.59.208 2606:4700:58::adf5:3bd0 2803:f800:50::6ca2:c1d0 2a06:98c1:50::ac40:21d0	mitch.ns.cloudflare.com mitch.ns.cloudflare.com mitch.ns.cloudflare.com mitch.ns.cloudflare.com mitch.ns.cloudflare.com mitch.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 130ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.83.6	—	—	AS13335	—	—	—	—
172.67.210.53	—	—	AS13335	—	—	—	—

📧 MX Records#

2 records 102ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	—	mx2.onlinemail.io	46.36.208.16	mx2.onlinemail.io	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover-mf.onlinemail.io → 185.21.40.62
🔶 Autoconfig	autoconfig-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)#

2 records 140ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::ac43:d235	—	—	AS13335	—	—	—	—
2606:4700:3036::6815:5306	—	—	AS13335	—	—	—	—

🔐 HTTPS Records#

1 records 129ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.83.6,172.67.210.53 ech=AEX+DQBBXQAgACCKtZprehaOOcZuI8UfRINUiU1H1hp2/GZSIeULHEiwSAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:d235,2606:4700:3036::6815:5306

📝 TXT Records#

1 records 226ms

TXT Record
v=spf1 include:spf.onlinemail.io -all

✉️ SPF#

Policy	Record (mc45.dk)
-all (hard fail)	v=spf1 include:spf.onlinemail.io -all

📨 DMARC#

Policy	Record (_dmarc.mc45.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 2026-10-08 12:09:27

www	104.21.83.6 172.67.210.53 2606:4700:3030::6815:5306 2606:4700:3036::ac43:d235 (AS13335) (address records, no CNAME)
www vs bare domain	Same network mc45.dk: 104.21.83.6 172.67.210.53 2606:4700:3030::6815:5306 2606:4700:3036::ac43:d235 (AS13335) www.mc45.dk: 104.21.83.6 172.67.210.53 2606:4700:3030::6815:5306 2606:4700:3036::ac43:d235 (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u46528827.wl078.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u46528827.wl078.sendgrid.net	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: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

184ms

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

🏷️ SOA#

146ms

Field	Value
Serial	2406570276
Primary NS (MNAME)	gabriella.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-21 14:23:28

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2012-10-10
Expires	2026-10-31 (5d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

102ms

130ms

102ms

AAAA

140ms

TXT

226ms

CAA

137ms

HTTPS

129ms

TLSA

176ms

SOA

146ms

MTA-STS

118ms

DNSSEC

184ms

SRV

185ms

Total

1551ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-25 06:45:22	9491ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-23 06:35:53	1022ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-16 05:05:11	1100ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-29 18:33:42	1245ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-25 19:32:08	716ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-24 14:18:02	1482ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-21 04:47:39	2890ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-23 01:19:39	2890ms	2 NS 2 A 2 MX	❓ Unknown
2026-07-21 02:08:56	8859ms	2 NS 2 A 2 MX	❓ Unknown
2026-06-25 04:43:25	952ms	2 NS 2 A 2 MX	❓ Unknown
2026-06-22 16:11:08	991ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-21 23:24:18	1085ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 00:26:03 shown	1551ms	2 NS 2 A 2 MX	🔓 Insecure