Cached · just now
77/100 SECURITY SCORE

Certificate Information

Subject
CN=www.aiabc.jp
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
November 03, 2025
Valid Until
February 01, 2026 40 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
20:A5:2E:C3:80:7F:20:9A:07:14:21:44:3D:68:A1:98:21:3F:25:B7:C9:CD:DC:F8:94:2B:A1:9E:C6:7B:46:FE
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.pku.world

Other domains in certificate

606academy.com
aboytes.net www.aboytes.net
adreskamerhuren.be
agrichub.co.za
www.aiabc.jp
auth.alphaarchitect.com
www.astrosajwal.com
avvcastronuovoalessandra.it
dlink.castpro.live
checkvin.report
clickservico.com www.clickservico.com
clientellapps.com
portal.futuretechniques.com.np
criscamideas.com www.criscamideas.com
daftary.app
www.dailyangular.com
alpha.placeme.dataplace.ai
catalogue.dbm-ltd.co.uk
www.domiadam.com
app.dugri.us
prestto-homolog.duplow.com prestto.duplow.com
livewest.elixel.co.uk
stage.emu.blue
design.entur.org
site-result-auctions.farmgateauctions.com.au
interviews.gammaresume.com
test.getaccept.com
dev.getfriday.ai
app-dev.goball.com
greenit-naturals.org
technical-books.gustave-studio.com
dev.mijn.hallovriend.nl
mobile.icelabz.co.uk
academy.indefini.do
indsee.com
instacnc.se
www.ismaelgonzalez.net
sitrusappinstallbeta.jaim.tech
m-asyncinterview.jombay.com
optom.kiss-illes.com
www.learnwithnat.com
app.leb.services
lesxi.lethrodou.gr
lgmultisplit.com.br
hagana.linkpc.net
www.littleidiots.com
lsmagic.com
ss-stage.lssdev.com
markmind.com.br www.markmind.com.br
www.maroujalrafdin.com
admin.max-estrem.com
signage.mdusolutions.com
app.medihippo.de
www.metabyl.com
mindsubs.com
room-sync.my-dev-server.com
staging.mymilk.eu
contrib-trainer.naloxofind.com
namewrangler.com
ndabits.com
www.nitroflux.com
novarahr.com
palescript.com
www.paul-tohmeh.dev
petesayshello.com
www.pinartes.org
pleadia.com
www.plynth.xyz
ascor.portfoliolink.co.za
www.prefabricadosgbc.com
www.premiocapitolium-roma.it
www.productscience.co.uk
www.qubitdna.us
www.rafty.cz
creators.rapid-ood.de
www.rky.io
rsmatchmaking.com
spyisland.runaway.games
www.sarthakjeevannasamuktikendra.in
sciack.it
www.scribbleout.art
www.seabeckconsulting.co.uk
www.seeiuu.com
sqirvy.xyz
starsleague.gg
suelacaramelo.com.ar
lab.swatihospital.com
taskadia.net
thecollectorseye.com
www.toraware.org
www.tuneroom.org
vinsarinfotech.com
www.wardle.app
bliss.zamlern.com