Open
Cached
·
just now
77/100
SECURITY SCORE
Certificate Information
Subject
CN=www.calenster.com
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
December 23, 2025
Valid Until
March 23, 2026
79 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
7C:4C:63:55:E3:A2:93:2A:BF:9E:8E:C8:9E:76:CF:61:30:93:AD:D6:A2:7E:90:9B:A9:8E:D4:D1:1C:99:E7:FA
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
www.easyform.ca
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bullandballot.com
www.busybeehazleton.com
www.calenster.com
www.camberwelltech.co.uk
cbrunner.de
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cimplybest.cimplyfive.com
www.mylittlekitty.co.kr
extensions-app.prod.eu.companionmedical.dev
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customer.ionex.tw
my.primary.health.cdphe.access.irugyou.com
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katamon.net
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www.legacysales.ca
allergan.livebusinessupdate.com
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w.luke-roberts.com
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moonspay.mymoons.cl
web.myplayer.io
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peopleartfactory.com
auth.phonic.ai
auth.preview.pilot-security.com
healthymart.piticommerce.com
www.pizza-boy.com.au
sugasab.pujasweb.co
quodomo.de
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selfsurvey.roadzen.ai
test.rockwelltechnologies.com
roova.eu
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app.sbilanciati.it
siliconseed.io
sioview.com
suko48.com
mushroom.tallyfor.com
cms.teero.com
www.thepowercourses.com
thoren.io
tickar.com.ar
app.tkshippers.com
www.toska.no
www.towkns.com
dev.trxtl.com
www.ugurkig.com
gameparuay.unileveractivity.com
webbly.ch
www.wish-to-go.com
appointments.zivro.com
app.zudada.me
Other domains in certificate