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

Certificate Information

Subject
CN=*.iew.international.wisc.edu
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M03
Valid From
September 03, 2025
Valid Until
October 02, 2026 324 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
33:AC:FD:4D:8E:90:8F:2E:14:A5:F7:6E:AE:B1:90:DC:6A:1B:3B:55:DB:27:CD:BE:45:D5:06:89:AB:96:00:D4
Alternative Names
99 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

99 domains
casp.wisc.edu eeclub.wisc.edu insight-wisconsin.wisc.edu ml-marathon.wisc.edu nhe.wisc.edu themadisonreview.wisc.edu *.casp.wisc.edu *.eeclub.wisc.edu *.insight-wisconsin.wisc.edu *.internationaltravel.wisc.edu *.ismajor.wisc.edu *.iss.wisc.edu *.itproconf.wisc.edu *.jpgi.wisc.edu *.kemp.wisc.edu *.kidspeech.wisc.edu *.labs.wisc.edu *.lacis.wisc.edu *.lakeshorepreserve.wisc.edu *.langsci.wisc.edu *.leadership.wisc.edu *.legal.wisc.edu *.legalstudies.wisc.edu *.lgbt.wisc.edu *.licensing.wisc.edu *.limnology.wisc.edu *.ls.wisc.edu *.matecwisconsin.wisc.edu *.mbo.wisc.edu *.mcardle.wisc.edu *.memf.wisc.edu *.metc.wisc.edu *.mideast.wisc.edu *.ml-marathon.wisc.edu *.molpharm.wisc.edu *.morgridge.wisc.edu *.mosseprogram.wisc.edu *.mpic.wisc.edu *.msc.wisc.edu *.neuromajor.wisc.edu *.neuroscience.wisc.edu *.newstudent.wisc.edu *.nhe.wisc.edu *.nmrfam.wisc.edu *.nuinfo.wisc.edu *.nursing.wisc.edu *.nwpmc.wisc.edu *.oed.wisc.edu *.ohr.wisc.edu *.omai.wisc.edu *.ombuds.wisc.edu *.oncology.wisc.edu *.themadisonreview.wisc.edu holdenlab.biochem.wisc.edu idia.radiology.wisc.edu matstats.engr.wisc.edu screendancesymposium.art.wisc.edu wanglab.bact.wisc.edu *.advising.ls.wisc.edu *.ahkan.labs.wisc.edu *.bacmajor.ls.wisc.edu *.bendlinlab.medicine.wisc.edu *.blog.limnology.wisc.edu *.bridge.iss.wisc.edu *.cae.ls.wisc.edu *.careers.ls.wisc.edu *.ccne.nursing.wisc.edu *.conservationbiology.ls.wisc.edu *.constellations.ls.wisc.edu *.demintranet.medicine.wisc.edu *.dove.mcardle.wisc.edu *.dugan.limnology.wisc.edu *.edrl.engr.wisc.edu *.gameoftcells.medicine.wisc.edu *.holdenlab.biochem.wisc.edu *.huttenlocher.labs.wisc.edu *.idia.radiology.wisc.edu *.iew.international.wisc.edu *.internships.international.wisc.edu *.kmsp.international.wisc.edu *.manager.labs.wisc.edu *.matstats.engr.wisc.edu *.molecularbio.ls.wisc.edu *.ntp.neuroscience.wisc.edu *.pan.labs.wisc.edu *.phonetics.langsci.wisc.edu *.projects.international.wisc.edu *.reynolds.labs.wisc.edu *.robertson.labs.wisc.edu *.saa.ls.wisc.edu *.scholars.international.wisc.edu *.scholarships.ls.wisc.edu *.screendancesymposium.art.wisc.edu *.stanley.limnology.wisc.edu *.strategicplan.medicine.wisc.edu *.student.nursing.wisc.edu *.students.nursing.wisc.edu *.tandemehr.medicine.wisc.edu *.wanglab.bact.wisc.edu