Open
Cached
·
just now
77/100
SECURITY SCORE
Certificate Information
Subject
CN=www.estserend.com
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
October 08, 2025
Valid Until
January 06, 2026
56 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
7E:19:DF:50:47:C5:83:3F:6A:16:C0:3E:29:95:5F:FE:CA:7E:38:DB:FF:3D:B3:38:EE:33:01:20:8B:CE:56:F5
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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bwimer.dev
doc.canoe.mobi
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courtspace.lk
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www.didar.no
qa.drivees.com
newsletter-public.duonghuuphuc.com
www.edn-ind.com
www.elpwifi.com
www.epicslink.com
www.estserend.com
fighter-power.com
www.flavs.id
play.cabanacraft.frontfacer.com
devfest-seoul18.gdg.kr
www.ghost.earth
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foerderverein.grundschule-ribbesbuettel.de
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kalakaar.ai
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launchpad.club
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io.m3dicine.com
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www.mirico.center
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auth.mycarcheck.com
mycommercejob.com
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supermercados-online.nata.dev
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auth.pay.onewash.com.au
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www.pensionspenguin.com
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gestor.dev.publinet.com.ar
qualplacar.com
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admin.razacar.com
waittime.rinnolab.cl
www.s-takahisa.work
www.sababa.news
portal.safirasolar.com.br
rewards.scoutabout.com
link.sdapy.com
admin.semplicementecomunita.it
sidasbangladesh.com
lite.simple-reports.com
franci.siniestrodecoches.com
siniestrodecoches.com
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app.solotrvlr.com
lbpa-app.speakylink.com
auth.stagingsign.com
stolace.com
www.streamerrank.com
svetanyc.com
xvgraciagarcia.swanmoments.com
tapassiontajob.com
thecollectioncars.com
thegitaway.com
thesimplehistory.de
privacy.tulpie.app
www.vipulasri.com
whitecloverfarmstead.com
www.wiva.com
www.xyznaet.ru
moot.yaatly.com
zaraca.ca
Other domains in certificate