Open Cached · just now
77/100 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
www.mann-kann.ch

Other domains in certificate

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
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