DNS Gurus
Open Cached · just now
73/100 SECURITY SCORE

Certificate Information

Subject
CN=accessibility.fpm.wisc.edu
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M01
Valid From
October 10, 2025
Valid Until
November 08, 2026 342 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
AE:8E:43:AE:21:5C:41:80:22:FB:E3:91:DE:C8:0F:26:5A:27:40:FB:C1:24:8C:5F:E0:A9:9F:C1:E3:4E:11:D1
Alternative Names
70 domains

Security Configuration

TLS Protocols
TLS 1.2
Forward Secrecy
Limited (Check cipher configuration)
Warnings
  • • TLS 1.3 is not supported (recommended)

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
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
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • 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

70 domains
armor.wisc.edu biochem.wisc.edu biotech.wisc.edu fewscapes.wisc.edu galaxyscouts.wisc.edu mcevbd.wisc.edu r3steel.wisc.edu shall.wisc.edu shpeuwmadison.wisc.edu soils.wisc.edu wsmtl.wisc.edu *.armor.wisc.edu *.biochem.wisc.edu *.biotech.wisc.edu *.fewscapes.wisc.edu *.galaxyscouts.wisc.edu *.mcevbd.wisc.edu *.r3steel.wisc.edu *.shall.wisc.edu *.shpeuwmadison.wisc.edu *.soils.wisc.edu *.wsmtl.wisc.edu accessibility.fpm.wisc.edu am2.engr.wisc.edu amrit.radiology.wisc.edu av.fpm.wisc.edu big10utilities.fpm.wisc.edu brunold.chem.wisc.edu cbb.labs.wisc.edu cpd.fpm.wisc.edu cpla.fpm.wisc.edu crystals2molecularworld.chem.wisc.edu development.policy.wisc.edu ethics.journalism.wisc.edu facilities.fpm.wisc.edu inside.fpm.wisc.edu kimblelab.biochem.wisc.edu lecuyer.aos.wisc.edu maeda.botany.wisc.edu pikulgroup.engr.wisc.edu plantresilience.cals.wisc.edu presentingandwritinglab.business.wisc.edu safdarstudies.medicine.wisc.edu smo.fpm.wisc.edu spanlab.csd.wisc.edu turbulence.neep.wisc.edu *.accessibility.fpm.wisc.edu *.am2.engr.wisc.edu *.amrit.radiology.wisc.edu *.av.fpm.wisc.edu *.big10utilities.fpm.wisc.edu *.brunold.chem.wisc.edu *.cbb.labs.wisc.edu *.cpd.fpm.wisc.edu *.cpla.fpm.wisc.edu *.crystals2molecularworld.chem.wisc.edu *.development.policy.wisc.edu *.ethics.journalism.wisc.edu *.facilities.fpm.wisc.edu *.inside.fpm.wisc.edu *.kimblelab.biochem.wisc.edu *.lecuyer.aos.wisc.edu *.maeda.botany.wisc.edu *.pikulgroup.engr.wisc.edu *.plantresilience.cals.wisc.edu *.presentingandwritinglab.business.wisc.edu *.safdarstudies.medicine.wisc.edu *.smo.fpm.wisc.edu *.spanlab.csd.wisc.edu *.turbulence.neep.wisc.edu