Open
Cached
·
just now
77/100
SECURITY SCORE
Certificate Information
Subject
CN=tmobilemasterclassoffer.kasparovchess.com
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
October 08, 2025
Valid Until
January 06, 2026
60 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
A0:2B:E7:6E:61:BF:8D:45:42:C7:95:13:BA:DE:FB:E1:98:FA:FD:8E:8C:EB:14:B8:98:3F:4A:7A:6B:B7:98:E9
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
firstaustralianscybersecurity.com.au
oongaboonga.api.acadarena.com
www.adelina.io
www.advancedfantasyroleplaying.com
ahsananwar.online
andybettisworth.com
dev.anibles.io
sigma.master.appdashboard.nl
www.auxen.app
new.bbparam.com
app-testing.brainjo.de
www.breadverse.io
things.brysonvanryn.com
capg.app
shawarmilaokl.capromenu.com
caradalp.fr
www.cayden.games
quiz.bnbd.co.kr
www.suyogpandit.com.np
dev-web.fastvalue.com.vn
con.vision
app.contentoh.com
demo.coursebooku.com
www.datarich.io
derekhassick.com
www.developmentleaders.world
dicodingin.com
dogothocungus.com
www.e2mholidays.com
sepa.areandina.edu.co
supermarket.emeriti.es
sudachi.emuplace.app
webapp.energie360.ch
cp.enl.kr
www.faluche.app
app.familyportal.nyc
admin.fightback.community
es.firemenu.app
mitarbeiter.flp-lager.de
www.forecastweather.co
www.fulldeals.in
admin.demo.g17.eco
garytur.in
getdevour.com
gvmtec.com.br
habermacheraurelien.com
hardwordstospell.com
altona1.headraft.de
www.kadurawebservices.com
dashboard.karunafilm.com
tmobilemasterclassoffer.kasparovchess.com
www.kelvinchan.co.uk
webpos.kinderlabs.kr
hr.krootl.xyz
www.kudosaqua.in
api.kurtli.com
jornadasinnovacion.liidutpl.ec
fosterpark.loadsure.net
app.lockone.dk
eqptlic.ltl-xpo.com
www.luqmansaeed.com
makeelectronicsound.com
masterpoultrygroup.com
www.matnet.se
stgsso.mediamarket.jp
www.monkeygarbage.co.uk
www.mtc-cyber.com
mycaselog.com
myresearchexperience.org
neyaznafiz.xyz
www.nohea.engineer
notabletherapy.com
demo.oso-ai.com
sequence.oso-ai.com
pierrenurygames.ovh
www.prafull.me
test2.prazskabojovka.cz
quizcv.com
radiusfriend.com
renovatewell.com
rkmgrain.com
jachin.rupe.name
scworks.nl
mhos.sensure.in
simonaertsportfolio.com
spintax.ai
wed.sunilgudivada.dev
greetingcat.system-neco.com
thepapillons.co.uk
www.travelhop.io
masactividad.turnosweb.app
olyteam.turnosweb.app
www.uiclap.bio
parcours.valais.cloud
wgcvhoa.com
www.genrich.withorca.com
wordsprints.org
www.yama-camera.com
www.yepmile.com
rt-back.zoomers.xyz
Other domains in certificate