coolgray.dk

📜 Historical scan 2026-07-17 14:09:57  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

coolgray.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 27 March 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.45 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx.spamfilter.io. The zone is DNSSEC-signed and validates, 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   43ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S

🌍 A Records#

1 records   39ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.21.40.45 3600s linux28.curanet.dk AS48854 team.blue Denmark A/S 185.21.40.0/22 🇩🇰 Denmark —

📧 MX Records#

1 records   37ms
PriorityTTLMail ServerIP addressesPTRASN
10 900s mx.spamfilter.io 46.36.212.34
46.36.212.36
46.36.212.37
46.36.212.38
89.188.78.64
89.188.78.65
89.188.78.66
94.231.106.12		 node4.spamfilter.io
node8.spamfilter.io
node6.spamfilter.io
node7.spamfilter.io
node3.spamfilter.io
node9.spamfilter.io
node10.spamfilter.io
node2.spamfilter.io		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 52.98.149.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records   16041ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 0 1 5061 sipfed.online.lync.com

📝 TXT Records#

5 records   232ms
TXT Record
google-site-verification=dexQ-Ug6kRRzPEXPhhtsXgGbfrd3zq-sXE13GfjzrJU
mandrill_verify.Cz5gyfJD5LeI7lJ2TcX6Yg
MS=ms37139476
v=spf1 ip4:185.21.40.45 ip4:94.231.99.20 ip4:94.231.99.1 ip4:185.221.37.72 ip4:94.127.54.98 ip4:94.127.54.115 ip4:89.221.244.172 ip4:54.229.40.125 include:spf.mandrillapp.com include:sendgrid.net include:spf.mailanyone.net include:spf.protection.outlook.com include:_spf.powerhosting.dk -all -all
zVSWNyt0I4EL33Yo7rn8hDHAObW+tEbEMqEeBFV2Nl39MH20kp+vLMaDEAD79SBSufk2/kGsBx5LycZRHh0xKw==

✉️ SPF#

PolicyRecord (coolgray.dk)
-all (hard fail) v=spf1 ip4:185.21.40.45 ip4:94.231.99.20 ip4:94.231.99.1 ip4:185.221.37.72 ip4:94.127.54.98 ip4:94.127.54.115 ip4:89.221.244.172 ip4:54.229.40.125 include:spf.mandrillapp.com include:sendgrid.net include:spf.mailanyone.net include:spf.protection.outlook.com include:_spf.powerhosting.dk -all -all

📨 DMARC#

PolicyRecord (_dmarc.coolgray.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 2026-10-13 13:47:55
www93.191.156.189 (AS48854) (address records, no CNAME)
www vs bare domainSame network
coolgray.dk: 93.191.156.189 (AS48854)
www.coolgray.dk: 93.191.156.189 (AS48854)
WildcardNo
Denial of existenceNSEC zone can be walked (all names enumerable)
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
dkim ph._domainkey.powerhosting.dk RSA · ~1024 bit below 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: 6/10 · policy: -all

No problems found

🔗 TLSA / DANE#

1 records   58ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.spamfilter.io DANE-EE · SPKI · SHA-256 9A25F05F2E322DABDCC9B7A06AB47A2D…

🔐 DNSSEC#

131ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2026071701
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-04 17:28:55
FieldValue
RegistrarSimply.com A/S
Registered2009-03-27
Expires2027-03-31 (164d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
43ms
A
39ms
MX
37ms
AAAA
35ms
TXT
232ms
CAA
36ms
HTTPS
37ms
TLSA
58ms
SOA
0ms
MTA-STS
54ms
DNSSEC
131ms
SRV
16041ms
Total
16830ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-13 13:47:55 683ms 3 NS 1 A 1 MX 🔓 Insecure
2026-10-04 17:14:51 1905ms 3 NS 1 A 1 MX 🔓 Insecure
2026-09-30 16:45:50 464ms 3 NS 1 A 1 MX 🔓 Insecure
2026-09-26 13:47:33 541ms 3 NS 1 A 1 MX 🔓 Insecure
2026-09-15 10:37:19 1015ms 3 NS 1 A 1 MX 🔓 Insecure
2026-08-26 19:57:09 842ms 3 NS 1 A 1 MX 🔓 Insecure
2026-08-18 22:51:40 8224ms 3 NS 1 A 1 MX 🔓 Insecure
2026-07-20 21:48:29 975ms 3 NS 1 A 1 MX 🔓 Insecure
2026-07-17 14:09:57 shown 16830ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-25 12:05:26 869ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-23 00:01:34 838ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-16 22:16:23 2829ms 2 NS 1 A 1 MX 🔒 Secure
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