Open
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SECURITY SCORE
Certificate Information
Subject
CN=jmath.dev
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
December 09, 2025
Valid Until
March 09, 2026
88 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
7B:86:5F:39:48:A0:19:1F:CE:D5:5C:2A:B5:14:8B:2C:C1:63:7A:C4:C9:75:F2:F6:93:03:36:A0:0B:5D:5A:F9
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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cm.app
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checkin.compli.nl
partner.cynchsec.com
chatbot.ddpco.dev
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developermemos.com
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dreamtv.mn
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auth4.google.eitvcloud.com
sandboxconsole.epap.app
myqqt.equiem.mobi
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jmath.dev
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notnot.se
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passed.pw
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app.dev.progi.com
id.proxyai.us
prue.io
l.staging-secure.rakuna.co
www.reboots.be
stg-www.rebop.io
recallscanada.ca
promo.respilates.app
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surgical.tv
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www.syde.cloud
custom.thecryptomasks.xyz
my.transporttrackerai.com
lp.tsukurable.com
tunmise.dev
tweetcards.app
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williamjmartinez.com
Other domains in certificate