Open
Cached
·
just now
77/100
SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=2021.devfest.cz
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
July 28, 2026
Valid Until
October 26, 2026
84 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
8A:45:57:77:89:0B:5F:F6:F2:B8:77:B3:06:D0:E1:FC:7B:FD:EE:6D:D7:78:6F:60:06:FD:5A:B4:95:94:7A:C2
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
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
mcertify.com.mm
www.1cubatech.fr
www.3231pvds.com
www.7ok.in
www.9393ethel.com
www.afriserve-live.org
www.aharealty.lat
www.aianddatalandscape.com
www.amicotechnologies.in
fuselia.antzwave.com
www.arakin.ltd
bauhoni.buzz
app.belibunga.com
bimobi.app
ciaira.biovid.com
mobile.bwinners.com.zm
retail.bwinners.com.zm
chaudharis.in
www.chaudharis.in
cirvahna.com
deckanddice.codeunlimited.se
app2.constructo.cc
www.creativeblock.co.nz
ctlonline.org.br
datstrategy.buzz
www.designs.photos
2021.devfest.cz
devhas.com
diligentaide.lat
songmaker.djkingteddy.co.il
eftnuclear.hair
www.eftnuclear.hair
qa.enilaminc.com
excellarglobal.com
admin.felicette.app
auth.gadgettrade.online
getbcnn.com
register.hdor.com
jadekirin.lat
jadeverse.buzz
www.jiufaglass.com
jks.codes
jouliving.autos
www.kaka.ru
trello.knieszner.pl
www.le-chantier-ludique.fr
leftturn.social
lumper.app
edify-admin.macademy.in
majnrcraft.cz
edudev.mayamd.ai
mdtoemail.com
mltfex.com
www.mltfex.com
monitec.io
muminapp.tr
www.myaccessibility.ai
www.myearnapp.xyz
newbridge-dt.co.uk
www.newbridge-dt.co.uk
newcastlescouts.com
nityox.com
www.nityox.com
www.medlem.occ.no
olivesuites.gr
peacepeak.buzz
www.peacepeak.buzz
www.pegasos.app
www.phonic.pegasos.app
www.timetopractice.pegasos.app
pianotutorialswithchrisebute.com
www.piercingdental.com.br
pol.care
app.edu.pulse-crm.online
edu.pulse-crm.online
quickfortune.buzz
rx101direct.com
sacredwhispers.co.za
savtechnologies.co.in
www.scinteiflorina.ro
secureagain.hair
www.secureagain.hair
shopfast.vn
sketcha.app
skyvoyage.buzz
guide.superheysongamemaker.com
tabulate.me
taxmoose.ca
www.taxmoose.ca
telatarboru.com
about.tokunow.jp
transtecgroup.in
traveltales.it.com
www.turtopardavimas.lt
r.usp.pl
ux3d.io
www.whodiedfirst.com
www.workinside.com.br
house.yuukan.studio
dev-merchant-zcommerce.zaisustechnologies.in
Other domains in certificate