77/100 SECURITY SCORE

Certificate Information

Subject
CN=simpleclub.schule
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
July 31, 2026
Valid Until
October 29, 2026 84 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
5D:EC:5D:10:0E:01:50:F3:EC:55:21:48:F5:AF:18:64:CD:5B:13:9B:98:5D:D9:A6:A0:1D:69:DB:08:11:83:13
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=31536000
Content-Security-Policy
Missing
Not configured Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
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
materialsresourceexam.com www.materialsresourceexam.com

Other domains in certificate

akwit.org
www.app-haus.co.uk
badavabricks.in
www.bcast.world
blackbird.rocks
www.bodysecret.in
capsexam.com
app.capstackstorage.com rent.capstackstorage.com
cbcpexam.com www.cbcpexam.com
cescpexam.com www.cescpexam.com
cestexam.com
forms.cmcvellore.edu.in
cerebrito.colegios.com
craft-ai.cloud
crai.no
criexam.com www.criexam.com
cweexam.com www.cweexam.com
cwsrexam.com
dev-nb.de
dogmeet.de
dogmeet.nl
dramirianbarahona.com
www.drcambara.cl
d.dth4.com
www.egotronics.co
energie360.ag www.energie360.ag
hafsa.et3am.com
www.fabiobalanzas.com.ar
professional.fit-in.ai
a0d6.foodle.su
geoquiz.pl
tides.ggyc.com
silohr-dev.glowfishlabs.com
goldmin-crypto.com
dashboard.discord.main.greenlabsvirtuallabs.com
system.gullyareza.com
fr.hash2cash.app
hellokarst.ai
bvtm.hosodientu.vn
app.jiricech2059.com
sales.joshinjapan.com
karcherservice.in
www.keenerocketeers.org
langesetgard.no
lilypadnz.com
liquidscripture.co
madares.tech
massif3d.fr
www.mediawise.co.kr
mehmetkozaninsaat.com
www.mvibn.com
mznd.africa
nekobito.com
phoenixmall-tele-x.nextgensoft.tech
ngicpexam.com
nrtstudio.autos
dvs.o21.nu
ox.o9.cl
ottypro.com www.ottypro.com
proforcefinder.com
funabashi.pubrepo.jp
pvdsexam.com
q8miles.com www.q8miles.com
r3exam.com
register.revolgy.com
rilo.cc
bestellen.romantica-waltrop.de
simpleclub.schule
www.smartml.org
snfnavigate.buzz
vault.soexcellence.com
spotwrk.com www.spotwrk.com
harevutai.spwn.jp
www.srdirect.org
app-admin.studybuddy.cz
dashboard.subscrib.ly
tabui.dog
tenseitech.com
thefrostycrew.com
up4grabs.xyz
auth.vagoatelier.com
app.dev.vesoir.com
compliance-navigator.waldseeconsulting.ch
contact.wwho.me
www.wzhang-sampling.page
xcap.co.jp
paints.yinglets.online
www.yooleejoyce.com
eynex.zansoc.com