Open
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just now
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SECURITY SCORE
Certificate Information
Subject
CN=kar.lu
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
December 28, 2025
Valid Until
March 28, 2026
89 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
F1:41:EA:0D:A7:93:60:E1:D9:9A:60:10:E7:97:FF:82:A6:E7:10:13:EA:5E:09:7C:64:1B:59:9E:3F:00:48:E6
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
idowudanielproperties.com
postpickr.advocacy.io
aligach.net
interfaces.alumio.com
playtop.appscore.at
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begoapp.com
www.bhaktighar.com
www.bhzmexico.com.mx
billy.design
app.bizsaya.com
www.bizsms.app
enterprise.blankstate.ai
bluepeaksoftwaresolutions.com
professionailnewmarket.bookingbeauty.co.nz
buchhandlung-danko.de
buchhandlungdanko.de
chessneurons.com
picdrop.collagia.ai
coredot.io
www.cyan.red
darshanthoogudeepa.com
www.darshanthoogudeepa.com
www.decofurn.co
dent-ai.app
q1-myreports.dpd.co.uk
www.egraft.co
www.esharpdev.com
especialink.com
filothei65.gr
www.flourishing.app
fmitipton.com
fontana2.com
get-tintin.footprint-ai.com
forestgladefinancial.ca
www.fuzziontech.com
getsticker.com
dev-analytics.hooolders.com
www.hypotenuse.io
reberlhouseofx.impactwrap.com
impresoraschile.cl
auth.infiniteinfo.app
inlovewithmoments.de
chevxeron-stage-7.ischoolconnect.com
isitadressupdayinsanfrancisco.com
isthereamarinersgametoday.com
www.jakew.tech
www.jasonbrown.art
admin.jixy.nl
johnperalta.com
www.admin.juicemind.com
kampungmatematika.com
kar.lu
kitisa.com
preview.app.konch.ai
app-fulfill.ktech-thp-dit.com
www.laurenzr.com
test.lei.codes
longlivethetruth.com
marshallcountyinsurance.com
maxiash.com
propetro.meteredapps.com
api.mindtechnic.com
nrrpartners.com
octopilotai.com
covid.parsonsbehlelab.com
pdfjpg.app
on.personafx.com
api.prontopay.app
pubstore.world
cis698.qanguyen.net
www.raido.cl
staging.beta.app.satelligence.com
link.seren.app
msp.staging.serviceo.me
ss.shirakiya.com
smartlife.nz
solenechiche.com
www.southsideminimart.com
app.speedshooting.se
sugarnroses.com
share-dev.therecspot.com
www.tiko.social
tilderapp.kz
tabber.transround.com
tripdossier.com
tripleriverrapids.com
www.tsrinfradevelopers.com
tulukageba.turnosweb.app
ms2test.upwire.com
www.vasogenbio.com
fireb.vassistant.it
www.shop.vert.farm
weekendsocietymusic.com
central.weni.ci
admin.wog.gg
www.yasho.in
app.zmatch.life
Other domains in certificate