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77/100
SECURITY SCORE
Certificate Information
Subject
CN=universal.dein-ruf.de
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
December 30, 2025
Valid Until
March 30, 2026
88 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
4B:B6:AB:B5:0D:74:EF:19:28:11:62:37:A3:86:9A:9B:EE:97:0F:03:DD:F3:EC:1B:4D:8B:B0:3F:B9:CD:66:A2
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
pro.kcglobed.com
crm.aadviklabs.com
www.agendaprofissionalonline.com
www.anteihk.com
aradha.in
arshguleria.in
mexico.ascc.me
reportes.ascc.me
photos.ashish.family
app.bozp.expert
bussi.ee
chatpro.pro
hira.co.ls
packandgotravel.co.th
test.ecm.cradlecode.com
app.credencialinteligente.cl
cursoreact.es
dajohnsky.com
universal.dein-ruf.de
dopamineux.com
ebelz.com
links.fabsolucoesmkt.com.br
www.fabulae.fr
finmitr.in
business.funpinpin.com
myday.gornergrat.ch
static.gosunow.com
gpei-mennecy.fr
www.hapour.com
unlauncher.hundredgb.com
www.iabdsd.com
weather.ideascol.com
www.inmobiliariaecheverria.com
romex.it.com
www.itsltd.online
www.ka32.in
ticket-test.kiwisns.com
auth-dev.komachi.ai
auth.komachi.ai
www.labirentmedya.com
www.leandroealessandro.com
chat.magister.com
www.malabarmaskin.com
e-learning.moderngospelacademy.com
jpo.moderngospelacademy.com
mottx.com
mrkilian.es
nc.nearform.com
hypercon.nilpointer.software
app.omplatform.cz
pantallas.online
auth.phil.chat
uat.dashboard.postremoit.com
forum.programming-hero.com
projex.digital
puntohogares.com
purpleberry.me
ng.rafaelzasas.com
www.rahultalukdar.in
raiva.in
www.rens-techniek.nl
retro.tools
rudranarayanpanda.in
connect-ng-analytics.rxoconnectmain.rxo.com
connect-ng-carrier-assigned-loads.rxoconnectmain.rxo.com
connect-ng-carrier-payments.rxoconnectmain.rxo.com
connect-ng-purchase-orders.rxoconnectmain.rxo.com
www.selectfoodtrucks.com
www.sergebadio.com
www.sergiomassip.com
portalsociofintech.sgroneclick.com
shadowgames.in
download.dev.sheercustom.com
user.smartaiforex.org
museu-unilever.softbox.com.br
stefanward.com
auth-shop.syrex.tech
theindianfoundation.org
academy.threedots.tech
underdash.pro
www.underdash.pro
ustrack17.com
www.vanterwis.ga
consola.venmail.net
vuojolahti.com
coupon.waffle.city
mikrotik.wifipublicitario.com
xn--3e0bmov0w67cqtmg8v3ic57hnmd.com
xn--hq1ba18zba.xn--3i4bz9iu8d.com
www.xn--42c6cjhs2b6b5k.com
xn--d1ahl.xn--80adoeb3adh3e.xn--90a3ac
xn--9m1b435a77azs.com
xn--api-r49dj1s3vtlwpxy1bgu2c.com
xn--karko-2ra.com
xn--sssy69dlgg.com
xn--sts-600okr.com
xn--stscenen-j0a.dk
mikrotik-red.ynriver.com
www.youniquebridalboutique.com
zycosports.in
Other domains in certificate