Cached · just now
77/100 SECURITY SCORE

Certificate Information

Subject
CN=teach.lingoberry.co
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
December 29, 2025
Valid Until
March 29, 2026 72 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
25:E3:53:5C:4B:C2:72:EE:AD:AC:A1:3A:20:EE:DE:40:25:12:D5:C9:89:73:52:40:7A:6E:BC:3C:35:B1:B3:F3
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
focus-sync.com

Other domains in certificate

10xbrno.cz
analyze-demo.aiteckworks.jp
www.alpha-transport.jp
animesoc.com
aosoftware.at
atakarejo.appshare.com.br
axis-coupon.awesomepiece.com
www.bearbytelabs.com
burakcancinar.com
creator.certified-content.com docs.certified-content.com
citimap.org
liquourlogic.co.ke
coinflow.money
alphafr-cw.confido.health
app-link.datari.eu
www.datiengo.com
www.didcelsiuspwn.me
digitalstoa.com
www.drivelist.in
elephant.gift
iql.equiem.mobi
seas.fieldeffect.net
libra.finculus.eu
aravind.finmitr.org
aidev.floriansondershausen.de
www.foxpaintgames.com
app.frillice.com
www.golfpad.events
quiz.groupone.pl
halavancabjj.com
apex.hiddedev.nl
frenezia.hureljeremy.fr
trek.ikuzaki.jp
www.immaculateinteriors.in
timesheet.techtime.it.com
aem.kad.is
starlapse.kevinbigay.dev
soroban.kidsup.net
kodetis.com
krediitium.ee
go.laborae.mx
admin.lessontime.co.uk
prod.lfgames.net
teach.lingoberry.co
portal.lisaacademy.org
www.livability.org
visualization.lookrec-staging.work
www.lovecodecampus.kr
www.lyle.fyi
vault.malidag.com
app.mealx.net
www.menu.al
idolatre.milramasapp.com.br
acervo.mwms.com.br
open.mywindo.shop
www.nasbulegal.com
negative.red
staging.nowwagon.com
checkout.ora.organic
adminca.udghosh.org.in
www.p29.no
alpha.pacta-cloud.app
tag.paymii.io
segesta.pensioeninzichtelijk.nl
www.pilshuisje.nl
tips.pixnet.net
www.playpac.cl
www.potomacdining.com
tour-feedback.powerproleasing.com
www.procoder.ro
app.dev.provisoevent.no
qr-tag.app
uat.quattro.today
rdc-31.rotaract3220.org
www.saboresmarinos.site
samaritan.bio
sbtravel.pk
sistemaplural.com.br
link.mmg.specialquiz.it
links.strivetech.com
suzukiplan.com
bodacivilwillyana.swanmoments.lat
textgraphics.eu
blogs.thirdray.ai
btcconference.thndr.gg
applinks-acc.tintelgift.nl
scripts.tsg.tordenapps.com
trustgraph.space
www.tweakyfai.com
tylerwickline.com
voncerts.in
wantone.app
www.webnamieru.net
wendellkuci.com.br
windrushbadmintonclub.co.uk
xcene.com.br
app.yournextprompt.com
eventio.znoj.cz