Open
Cached
·
just now
76/100
SECURITY SCORE
Certificate Information
Subject
C=US, ST=Pennsylvania, O=Carnegie Mellon University, CN=www.cmu.edu
Issuer
C=US, O=Internet2, CN=InCommon RSA Server CA 2
Valid From
October 31, 2025
Valid Until
December 01, 2026
385 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
53:83:E0:D9:97:7A:9D:E9:DA:7B:28:26:36:44:BF:9C:25:DB:73:9A:B5:9C:85:1D:47:19:8D:E7:47:7B:4A:36
Alternative Names
Security Configuration
TLS Protocols
TLS 1.0
TLS 1.1
TLS 1.2
Forward Secrecy
Limited
(Check cipher configuration)
Warnings
- • TLS 1.3 is not supported (recommended)
- • TLS 1.1 is deprecated and should be disabled
- • TLS 1.0 is deprecated and should be disabled
HTTP Security Headers
Status
Strict-Transport-Security
Present
max-age=300
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
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 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
109 domains
cmu.edu
ai-sdm.cmu.edu
alumni.cmu.edu
blockchain.cmu.edu
bme.cmu.edu
box.cmu.edu
carnegiemellontoday.cmu.edu
cbd.cmu.edu
cfa.cmu.edu
cmtoday.cmu.edu
cmutoday.cmu.edu
compbio.cmu.edu
covidcast.cmu.edu
data.cmu.edu
email.cmu.edu
engage.cmu.edu
english.cmu.edu
giftplanning.cmu.edu
giving.cmu.edu
givingcmuday.cmu.edu
google.cmu.edu
googlepassword.cmu.edu
hadr.cmu.edu
help.cmu.edu
ideate.cmu.edu
ini.cmu.edu
it-help.cmu.edu
leadership.cmu.edu
makepossible.cmu.edu
metro21.cmu.edu
music.cmu.edu
my.cmu.edu
psy.cmu.edu
responsibleai.cmu.edu
shift.cmu.edu
social.cmu.edu
sparcs.cmu.edu
sv.cmu.edu
timeline.cmu.edu
today.cmu.edu
vaccine.cmu.edu
west.cmu.edu
www.cmu.edu
admission.enrollment.cmu.edu
caps.web.cmu.edu
ccsa.sv.cmu.edu
cms.heinz.cmu.edu
cooling.ce.cmu.edu
disaster.sv.cmu.edu
dmi.sv.cmu.edu
email.alumni.cmu.edu
infoserver.andrew.cmu.edu
mail.alumni.cmu.edu
metro21.heinz.cmu.edu
msas.cbd.cmu.edu
myapps.andrew.cmu.edu
myotpapps.andrew.cmu.edu
nexus.ece.cmu.edu
playtest.etc.cmu.edu
pmbook.ce.cmu.edu
policy.andrew.cmu.edu
quake.ce.cmu.edu
reuse.cs.cmu.edu
scs4all.cs.cmu.edu
search.web.cmu.edu
web-search.andrew.cmu.edu
women.cs.cmu.edu
www.alumni.cmu.edu
www.arc.cmu.edu
www.bme.cmu.edu
www.ce.cmu.edu
www.cfa.cmu.edu
www.covidcast.cmu.edu
www.epp.cmu.edu
www.giftplanning.cmu.edu
www.giving.cmu.edu
www.help.cmu.edu
www.ideate.cmu.edu
www.ini.cmu.edu
www.metro21.cmu.edu
www.music.cmu.edu
www.psy.cmu.edu
www.r53.cmu.edu
www.shift.cmu.edu
www.sv.cmu.edu
www.timeline.cmu.edu
education.rec.ri.cmu.edu
gollum.mac.cc.cmu.edu
www.epp.cit.cmu.edu
www.nrec.ri.cmu.edu
www.rec.ri.cmu.edu
www.scs4all.cs.cmu.edu
www.store.cc.cmu.edu
www.telecom.cc.cmu.edu
www.women.cs.cmu.edu
www.education.rec.ri.cmu.edu
carnegiemellon.edu
www.carnegiemellon.edu
carnegiemellon.org
cmuenergyweek.org
www.cmuenergyweek.org
greenscienceinstitute.com
www.greenscienceinstitute.com
greenscienceinstitute.net
www.greenscienceinstitute.net
greenscienceinstitute.org
www.greenscienceinstitute.org
metro21.org
www.metro21.org
Other domains in certificate