Open
Cached
·
just now
77/100
SECURITY SCORE
Certificate Information
Subject
CN=tai.cotuongoffline.com
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
January 20, 2026
Valid Until
April 20, 2026
88 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
9C:86:6A:2D:04:4A:BA:64:7B:A1:EC:4D:6E:87:55:E9:10:6F:80:20:0E:44:27:43:31:33:B1:EA:6B:25:56:BF
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
HTTP Security Headers
Status
Strict-Transport-Security
Present
max-age=31556926
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Add Content-Security-Policy header to prevent XSS attacks
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
- • Add X-Content-Type-Options: nosniff
- • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
- • Consider adding Permissions-Policy to control browser features
CAA Records (Certificate Authority Authorization)
CAA Records
Not Configured
(Any CA can issue certificates)
CAA Issues
- • No CAA records configured - any CA can issue certificates
Recommendations
- • Implement CAA records to restrict which CAs can issue certificates for your domain
- • This adds an extra layer of security against unauthorized certificate issuance
- • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
- • Consider adding 'iodef' record to receive security incident reports
Subject Alternative Names
100 domains
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cao-recreatie.appdashboard.nl
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asiaair.co
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astraordinaryphotography.com
www.authentication-thai.com
www.avlund.dk
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test.app.bluechew.com
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sechat.camelson.org
clockwork-api.com
ea.agis.com.gt
www.srijesh.com.np
try.communityplaybook.org
link.concuatui.com
tai.cotuongoffline.com
crystalline-it.com
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deeplink.tw
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link.dzikra.app
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pre.thedatabase.top
thedatabase.top
www.trailside.ca
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www.triamisi.gr
www.ukon.dev
www.unconventionalgeek.am
dl.uae.upar.gg
singing.weberlolz.tw
www.xxandark.com
Other domains in certificate