Domain technical report
Coolors - The super fast color palettes generator!
coolors.co
Generate or browse beautiful color combinations for your designs.
IPv42
IPv62
MX1
NS2
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81
Total
80
DNS
90
Email
65
Security
70
Network
100
Availability
Domaincoolors.co
IPv42
IPv62
MX records1
StatusActive
DiagnosticsMain findings and recommendations
IPv4 (A)30 / 30 pts · Dns
2 IPv4 address(es) detected.
IPv6 (AAAA)10 / 10 pts · Dns
2 IPv6 address(es) detected.
Name server redundancy20 / 20 pts · Dns
2 NS record(s); 2 or more required.
SOA record10 / 10 pts · Dns
Authoritative zone record.
DNSSEC chain0 / 15 pts · Dns
Both DS and DNSKEY are required.
CAA policy0 / 5 pts · Dns
Certificate authority restriction.
DNS propagation10 / 10 pts · Dns
Agreement between public resolvers.
MX records20 / 20 pts · Mail
1 MX record(s).
SPF25 / 25 pts · Mail
SPF policy published.
DMARC25 / 25 pts · Mail
DMARC policy published.
DKIM20 / 20 pts · Mail
A DKIM selector was verified.
MTA-STS0 / 5 pts · Mail
Mail transport policy.
TLS-RPT0 / 5 pts · Mail
TLS reporting policy.
Valid TLS certificate55 / 55 pts · Security
43 day(s) remaining.
Certificate lifetime10 / 10 pts · Security
Full points require at least 30 days remaining.
HTTP security headers0 / 35 pts · Security
0 of 9 evaluated headers detected.
PTR reverse DNS0 / 30 pts · Network
PTR not detected.
IPv4 diversity35 / 35 pts · Network
Two or more IPv4 addresses receive full points.
IPv6 connectivity35 / 35 pts · Network
AAAA availability.
DNS resolution40 / 40 pts · Availability
At least one address family must resolve.
HTTP response40 / 40 pts · Availability
HTTP/2 200
HTTPS final URL20 / 20 pts · Availability
Final URL uses HTTPS.
DNS and emailPublished records and email configuration
A
2 record(s)172.66.147.158 104.20.46.243
AAAA
2 record(s)2606:4700:10::6814:2ef3 2606:4700:10::ac42:939e
CNAME
0 record(s)—
Not configured
MX
1 record(s)0 coolors-co.mail.protection.outlook.com.
TXT
6 record(s)"v=spf1 include:spf.mailjet.com include:mail.zendesk.com include:spf.protection.outlook.com ~all" "google-site-verification=7dG9ghQuZ4Lrm-a1ZOxLgUdC3yMWabeF7VIPFynLo8A" "google-site-verification=3qRcCpQk5u5UIIqrM7equi9Rq-nhKav0JCcIsJg3KBE" "MS=ms49897284" "google-site-verification=Y2xdcIi6BYXPx9zmx-cJOIULYvXlk5sDOMOfQ6-TDVM" "Hj85^&er"
NS
2 record(s)ajay.ns.cloudflare.com. gina.ns.cloudflare.com.
SOA
1 record(s)ajay.ns.cloudflare.com. dns.cloudflare.com. 2411274055 10000 2400 604800 1800
CAA
0 record(s)—
Not configured
DS
0 record(s)—
Not configured
DNSKEY
2 record(s)257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+ KkxLbxILfDLUT0rAK9iUzy1L53eKGQ== 256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8 KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA==
RRSIG
0 record(s)—
Not configured
NSEC
1 record(s)\000.coolors.co. A NS SOA PTR HINFO MX TXT AAAA LOC SRV NAPTR CERT SSHFP RRSIG NSEC DNSKEY TLSA SMIMEA HIP CDS CDNSKEY OPENPGPKEY SVCB HTTPS URI CAA
NSEC3
0 record(s)—
Not configured
SRV
0 record(s)—
Not configured
NAPTR
0 record(s)—
Not configured
TLSA
0 record(s)—
Not configured
SSHFP
0 record(s)—
Not configured
SPF
Configuredv=spf1 include:spf.mailjet.com include:mail.zendesk.com include:spf.protection.outlook.com ~all
DMARC
Configuredv=DMARC1; p=quarantine;
DKIM
Selector s1k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3nCl3W+E7mqs69nJ4oFQrRY//DBEm5ZnZMd0VW1j75N0onl0bKvKWcRTjrw80g5yf0WbWuOFHnej6/WxXZJgSlkHNRN3gR6VKaAIttxnSWXZAfnqTjPm1sNi5Mka7IQj4L54ZOnjaSLKGCuuJhcpZCQ0Nk8KUqyM6mdxH7REXUsWkJuAvMn95OvAdONLCm961j8dzntlCtu9FFRmEptMa3NFH7wSHQ1bEsKxCtWEY733hrtBukAiQfoBSNtUJgOuXslTvv3U6PGReULKQA2JeYh8EhY+hJ2apc0joMnVHygD3FHEpZRAiIEOwCfPwKEVtIv9//oIoeH6vaECaHKocwIDAQAB
Analyzed webpageMetadata and HTTP response
Title and description
ExtractedTitle
Coolors - The super fast color palettes generator!
Description
Generate or browse beautiful color combinations for your designs.
Final URL
https://coolors.co/
HTTP status
200
HTTP
Status
HTTP/2 200
Final URL
https://coolors.co/
Version
3
Server
cloudflare
X-Powered-By
SSL and HTTP securityCertificate, protocol and security headers
SSL certificate
AvailableAvailable
Yes
Issuer
Google Trust Services
CN
coolors.co
Valid from
2026-06-23T16:17:04-05:00
Valid until
2026-09-21T17:16:49-05:00
Days remaining
43
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384
Security headers
0 activeHSTSNot detected
Content Security PolicyNot detected
X-Content-Type-OptionsNot detected
X-Frame-OptionsNot detected
Referrer PolicyNot detected
Permissions PolicyNot detected
Cross-Origin-Opener-PolicyNot detected
Cross-Origin-Embedder-PolicyNot detected
Cross-Origin-Resource-PolicyNot detected
DNS propagationComparison across public resolvers
Public resolver comparison
ConsistentConsistent propagation
5 public resolvers queried.
ResolverServerResultLatency
Google
8.8.8.8104.20.46.243, 172.66.147.158
48,28 ms
Cloudflare
1.1.1.1104.20.46.243, 172.66.147.158
33,69 ms
Quad9
9.9.9.9104.20.46.243, 172.66.147.158
49,25 ms
OpenDNS
208.67.222.222104.20.46.243, 172.66.147.158
45,34 ms
AdGuard
94.140.14.14104.20.46.243, 172.66.147.158
66,47 ms
IP, geolocation and ASNAssociated network information
172.66.147.158
No datasuccess
No
country
region
city
asn
organization
isp
104.20.46.243
No datasuccess
No
country
region
city
asn
organization
isp
Visitor information
Visitorip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No
SMTPEmail port connectivity
coolors-co.mail.protection.outlook.com
Port 25: Closed/unreachable - 25.6 ms - Port 465: Closed/unreachable - 4010 ms - Port 587: Closed/unreachable - 4056.5 ms -