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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
61 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
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Present
camera=(), microphone=(self), geolocation=(), payment=()
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Add Content-Security-Policy header to prevent XSS attacks
CAA Records (Certificate Authority Authorization)
CAA Records
Configured
(Restricts certificate issuance)
Current Issuer
Authorized
(Matches CAA policy)
Authorized CAs
Wildcard CAs
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • You have authorized 6 CAs - consider limiting to only the CAs you actively use
- • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts
Subject Alternative Names
100 domains
fontana2.com
postpickr.advocacy.io
aligach.net
interfaces.alumio.com
playtop.appscore.at
book.arrive.ng
react.azeemhassni.com
labs.barfieldjr.com
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
get-tintin.footprint-ai.com
forestgladefinancial.ca
www.fuzziontech.com
getsticker.com
dev-analytics.hooolders.com
www.hypotenuse.io
idowudanielproperties.com
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