Open
Cached
·
just now
80/100
SECURITY SCORE
Certificate Information
Subject
CN=study.taxsem.com
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
November 10, 2025
Valid Until
February 08, 2026
86 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
0A:32:0A:E6:0F:D1:26:B8:EC:FD:25:5C:CE:11:A9:C9:8D:D3:73:B7:A0:BF:2A:B3:60:5F:C0:2D:59:48:B7:F8
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
Missing
Not configured
Content-Security-Policy
Basic
script-src; object-src; base-uri; +3 more
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Present
ch-ua-arch=*, ch-ua-bitness=*, ch-ua-full-version=*, ch-ua-full-version-list=*, ch-ua-model=*, ch-ua-wow64=*, ch-ua-form-factors=*, ch-ua-platform=*, ch-ua-platform-version=*
Recommendations
- • Add Strict-Transport-Security header with max-age of at least 1 year
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
- • 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)
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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mart-in.us
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nalandaservices.shop
arrivalsign.noahgearhart.com
www.noteasy.io
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persona.dev
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ko.purephotos.app
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sadaiv.ca
node-ip.saurabhagat.me
api.staging.savedby.io
web.saymon.tech
www.sigmine.io
spotregistros.com.br
pepsiscratchappstate.sqwadhq.com
stepbetcalculate.com
studenthub.space
www.superfrits.nl
celebracionprincesaalejandra.swanmoments.lat
tapplapp.me
app.tareamate.com
study.taxsem.com
www.technicallyfocused.com
site.teleeventos.com.br
tevoydecirunrollo.es
thomazsolucoes.com.br
www.timelogger.app
tobegames.com
adm.truckmaster.app
ul.tuoitre.vn
vnkmns.com.br
app.vtcpoa.com.br
waterfootprint-calculator.org
whoosthere.com
yosuke-miyanishi.com
Other domains in certificate