Open
Cached
·
just now
86/100
SECURITY SCORE
Certificate Information
Subject
C=US, ST=Maryland, L=Baltimore, O=Centers for Medicare & Medicaid Services, CN=www.cms.gov
Issuer
C=US, O=DigiCert Inc, OU=www.digicert.com, CN=GeoTrust TLS RSA CA G1
Valid From
July 27, 2025
Valid Until
July 28, 2026
207 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
CC:BA:CC:FF:FA:D1:12:74:B6:2F:6D:FB:C2:2F:8B:42:5F:F8:3E:6B:16:27:60:E0:5F:D0:63:07:D7:96:B5:00
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
Excellent
max-age=31536000 ; includeSubDomains ; preload
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
- • 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
44 domains
cms.gov
accounts.cms.gov
assisters.cms.gov
cerrs-edt.cms.gov
cerrs-mcr.cms.gov
cerrs-sp.cms.gov
cerrs-sts.cms.gov
cerrs-tb.cms.gov
data.cms.gov
design.cms.gov
download.cms.gov
edit.cms.gov
es.cms.gov
hics.cms.gov
hios.cms.gov
innovation.cms.gov
innovations.cms.gov
marketplace.cms.gov
mo-idp.cms.gov
nsa-idr.cms.gov
partnershipforpatients.cms.gov
qpp.cms.gov
qualitypaymentprogram.cms.gov
seed.cms.gov
www.cms.gov
zone.cms.gov
auth365.cerrs.cms.gov
cerrs365dws.cerrs.cms.gov
cerrsd365-sts.cerrs.cms.gov
cerrsd365.cerrs.cms.gov
cerrsd365training.cerrs.cms.gov
cerrsdws.cerrs.cms.gov
cerrsngtraining.cerrs.cms.gov
edit.data.cms.gov
edit.pdc.cms.gov
www.assisters.cms.gov
www.innovation.cms.gov
www.innovations.cms.gov
www.nsa-idr.cms.gov
www.qpp.cms.gov
www.qualitypaymentprogram.cms.gov
tableau.gc.bi.cms.gov
cms.hhs.gov
www.cms.hhs.gov
Other domains in certificate