Open
Cached
·
just now
80/100
SECURITY SCORE
Certificate Information
Subject
CN=app2.studyu.health
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
December 04, 2025
Valid Until
March 04, 2026
67 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
06:EC:37:21:60:F9:AE:00:62:AF:CF:94:EA:6D:CB:C1:03:19:FD:87:DC:64:68:C3:A1:87:91:79:01:9C:99:D0
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
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 4 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
gargya.in
2024.rachamechta.com
addmoneygrowmoney.in
akademiarozwojuprzemyslu40.pl
hiru3.akting.eu
alisonreilly.dev
s.beepz.app
characters-caropaulette.beryl.cc
shipanther-test.bigpanther.ca
bongu.in
admin.bravort.com
cashy.pl
categorly.com
caterbox.id
www.chym-elearning.com
www.cityswapp.com
www.technologytoolkit.clevelandmetroschools.org
auth.map.cmutt.app
afrohoneyguide.co.zw
lawyers-dev.legal.coconala.com
journal.codeshovel.com
registro.cokencode.com.br
school.conceptfusion.co.nz
fishadapt.csiro.au
xn--residncia-p4a.cubos.academy
xn--fnix-gpa.cubos.io
surveys.culturaldata.org
crypt.dave-becker.com
demorinindonesia.com
www.dotryan.com
electro-control.ch
asset.ethnustech.com
crm-api.evtit.com
faunaferraz.es
www.faunaferraz.es
app.fit-q.net
gangaaeng.com
hanumansingh.dev
harishportfolio.in
hora.iosxpert.cloud
ivinayak.in
www.joaoarmando.com
kmrhoney.in
kris-mont.pl
www.liam.kiwi
link.life.so
app.lifefyt.com
luditics.com
www.margauxmasson.com
mentorgue.com
menusbyv.com
imagenes.neerutech.com
omplatform.cz
paraschool.in
paycapp.com
pm.pedrosn.com
www.pratadeacucar.com.br
join.prayroom.io
prodivio.com
professionalhostelownersassociation.com
www.pryzmity.com
xn--2t8h.puf.io
join.quokkasac.com
login.recatch.cc
richaux.com
royalcut.dk
rtharanath.com
carrier.rxoconnect.rxo.com
schneider-robin.de
anna.scorethebusiness.com
testnet.sharemanage.com
shreeramassociates.online
www.simonstmichel.dev
dev.wola.softkesla.com
steinmind.in
backrub.studlars.com
app2.studyu.health
designer-v1.studyu.health
designer2.studyu.health
prod-jogaqui.iframe.survive.bet
szabadbisztro.hu
technokanhaiya.in
throneofceylon.com
admin.traitte.store
www.trbull007.in
utpannadesignworks.com
xdev-studio.com
www.xn--24-ftidu.com
xn--24-ftidu.com
xn--72ci8dblyvdqe3f1a9ig6b4e8c.com
xn--83h.gg
www.xn--ansamen-t2a.at
xn--chrt-moa.li
xn--i1b2ba3g9fi.com
www.xn--landmarkt-sankt-mrgen-m2b.de
xn--mgbac1a2gijaufx.com
www.xn--pay-k73byfl10a.com
xn--phry5son2c.com
xn--rssmann-n2a.de
www.xortonsoft.com
Other domains in certificate