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SECURITY SCORE
Certificate Information
Subject
CN=tkysela.cz
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
October 24, 2025
Valid Until
January 22, 2026
70 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
D4:F6:7F:66:4F:B5:F6:7D:CA:CC:EB:91:E9:8A:99:C4:0F:C2:F6:4A:5C:FC:04:D1:63:34:32:A4:30:CB:AD:EC
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
10xscale.in
29000.org
auth.google.67play.com.br
amg.anctech.com.au
www.artemisscientific.com
asumanaktuy.com
app.athenaresort.com
bifrost.atyrpharma.com
admin.automatus.be
www.barsik.info
www.bitbitcode.com
boisetrailschallenge.com
calfire.watch
chaemil.cz
www.chewstesting.com
cinetrendz.in
vndts.co.in
sabinatandukar.com.np
coma.do
cooperei.com.br
www.crunchy-app.com
link.csardiantal.hu
curation-ai.com
www.daanjhvandongen.nl
benefits.devridezum.com
pacjenci.dietetyklena.pl
diservcorp.co.uk
djoarsome.com
help.dogadozo.com
english.qa.doodlelearning.com
maths.dev.doodlelearning.com
doorman.vip
www.ese.edu.sv
eurovelo.effortix.eu
emiletimothy.net
odour.ermapps.com
eventshare.cz
v1.fanofaction.com
ffwd-ai.com
findnar.com
www.fingerspelling.xyz
flerse.com
portal.futura.healthcare
garynader.com
embarque.stag.gen-t.science
www.getweathergo.co
giftsa.in
www.gobooki.kr
stage.gohunch.io
goodboyorsweetgirl.com
gravotouchcc.gravotech.com
www.greatlane.in
www.harcamalarim.com
hoda-base.xyz
generative-showcase.hoshi.style
ilikestrobbery.com
via-stage.ischoolconnect.com
jakedylan.com
johncolumbo.com
kamimulab.com
kiaservisankara.com
fenutalca.lapieza.io
lightspeedcouriers.co.uk
loewen.rocks
www.lvmhcomplianceescape.com
www.maintmax.com
maksimcarey.com
www.mann-kann.ch
magickass.mixed.place
ipanema-competencias.msasoftwares.com.br
mushroomtales.in
www.nivish.in
kase.npy.io
www.offthecurriculum.com
aptrust.org.nz
osacodopao.com
vendor.paybird.app
plavnas.lv
portmarnockscouts.com
prabudhasaurabh.com
presentpals.com
presentplanning.com
quackquackattack.com
pfs.rabot.us
www.radanitsch.at
raffees.com
reygames.co
www.riveraburguer.com.br
ryanleung.me
app.sealeam.com
sundaypoolvilla.com
tailwind.club
link.teheca.com
uat-portal.thaismefund.com
tkysela.cz
www.uruz.id
barbeariadiplomata.v8app.com.br
vereins.link
vyompay.in
wira.lk
Other domains in certificate