Open
Cached
·
just now
88/100
SECURITY SCORE
Certificate Information
Subject
CN=aart.georgetown.edu
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
December 10, 2025
Valid Until
March 10, 2026
68 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
B7:07:24:F2:38:36:BD:8F:24:48:4D:8D:0B:EA:BD:0E:B0:4B:71:DB:3B:C9:C1:45:BE:F3:E3:B5:03:0D:B4:49
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=63072000; includeSubdomains; preload
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer-when-downgrade
Permissions-Policy
Present
geolocation=(self), microphone=(), camera=()
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
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
aart.georgetown.edu
academicsupport.georgetown.edu
accessibility.georgetown.edu
activeshooter.georgetown.edu
addictionpolicy.georgetown.edu
adifferentdialogue.georgetown.edu
aelrc.georgetown.edu
africachinainitiative.georgetown.edu
africanstudies.georgetown.edu
aging.georgetown.edu
aicolab.georgetown.edu
aidc.georgetown.edu
aiguidelines.georgetown.edu
americanstudies.georgetown.edu
americasforum.georgetown.edu
analytics.georgetown.edu
anesthesiology.georgetown.edu
anthropology.georgetown.edu
anxietyresearch.georgetown.edu
arabic.georgetown.edu
art.georgetown.edu
assessment.georgetown.edu
auxiliary.georgetown.edu
avesterra.georgetown.edu
bakerscholars.georgetown.edu
bdog.georgetown.edu
benefits.georgetown.edu
bga.georgetown.edu
biasreporting.georgetown.edu
biohaz.georgetown.edu
bioinformatics.georgetown.edu
biology.georgetown.edu
biomedicalresearch.georgetown.edu
biostatistics.georgetown.edu
biotechnology.georgetown.edu
blackstudies.georgetown.edu
bmcb.georgetown.edu
box.georgetown.edu
bses.georgetown.edu
bsi.georgetown.edu
bulletin.georgetown.edu
business.georgetown.edu
businessforimpact.georgetown.edu
businessofretail.georgetown.edu
businessofsustainability.georgetown.edu
campusministry.georgetown.edu
cancerandaging.georgetown.edu
canzps.georgetown.edu
careers.georgetown.edu
catholicstudies.georgetown.edu
cbpp.georgetown.edu
cbpr.georgetown.edu
cct.georgetown.edu
ceh.georgetown.edu
cellmedicine.georgetown.edu
centerforhealthequity.georgetown.edu
centile.georgetown.edu
cerl.georgetown.edu
cets.georgetown.edu
cfmi.georgetown.edu
cghpi.georgetown.edu
chemistry.georgetown.edu
cied.georgetown.edu
cigh.georgetown.edu
cjc.georgetown.edu
classics.georgetown.edu
clinicalbioethics.georgetown.edu
clinicaltrials.georgetown.edu
cmea.georgetown.edu
cmhe.georgetown.edu
cnir.georgetown.edu
cognitivescience.georgetown.edu
cogsci.georgetown.edu
commencement.georgetown.edu
commencement2020.georgetown.edu
commonhome.georgetown.edu
commonsense.georgetown.edu
communityengagement.georgetown.edu
compass.georgetown.edu
compliance.georgetown.edu
complit.georgetown.edu
coo.georgetown.edu
counsel.georgetown.edu
cph.georgetown.edu
cpnl.georgetown.edu
crf.georgetown.edu
cs.georgetown.edu
csd.georgetown.edu
csj.georgetown.edu
ctht.georgetown.edu
cti.georgetown.edu
ctl.georgetown.edu
ctsa.georgetown.edu
curaterra.georgetown.edu
cyberfellows.georgetown.edu
cyj.georgetown.edu
dcm.georgetown.edu
debate.georgetown.edu
digitalethics.georgetown.edu
cru.gumc.georgetown.edu