DNS Gurus
Open Cached · just now
77/100 SECURITY SCORE

Certificate Information

Subject
C=US, ST=Indiana, O=Purdue University, CN=www.purdue.edu
Issuer
C=US, O=Internet2, CN=InCommon RSA Server CA 2
Valid From
November 06, 2025
Valid Until
November 06, 2026 356 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
23:C1:86:17:BA:85:1E:57:D0:8B:E2:02:19:4A:1C:B8:77:11:C9:39:6F:11:77:31:0B:A2:B2:77:CD:39:8A:0F
Alternative Names
135 domains

Security Configuration

TLS Protocols
TLS 1.0 TLS 1.1 TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)
Warnings
  • • 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
Weak
max-age=0
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
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • 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

135 domains
purdue.edu admission.purdue.edu admissions.purdue.edu ansc.purdue.edu arboretum.purdue.edu btny.purdue.edu business.purdue.edu care.purdue.edu cdext.purdue.edu datamine.purdue.edu entm.purdue.edu esports.purdue.edu exed.purdue.edu gradschool.purdue.edu hcdd.purdue.edu hhs.purdue.edu honors.purdue.edu hort.purdue.edu i-hope.purdue.edu it.purdue.edu itap.purdue.edu krannert.purdue.edu owl.purdue.edu pathwaytopurdue.purdue.edu pcrd.purdue.edu smas.purdue.edu vet.purdue.edu www.purdue.edu alstar-internal.ceris.purdue.edu alstar-pets.ceris.purdue.edu approvedmethods.ceris.purdue.edu apps.online.purdue.edu atracsi.ceris.purdue.edu beekeeper.ceris.purdue.edu blogs.itap.purdue.edu businessplan.ceris.purdue.edu caps.ceris.purdue.edu cellwall.genomics.purdue.edu cyanosite.bio.purdue.edu cyto.ceris.purdue.edu decision-support.ceris.purdue.edu discover.online.purdue.edu ecdre.ceris.purdue.edu estebanfj.bio.purdue.edu extension.entm.purdue.edu fed.online.purdue.edu gomeet.itap.purdue.edu greatteacher.ceris.purdue.edu hortcalc.ceris.purdue.edu hothog.ceris.purdue.edu iseb.ceris.purdue.edu jinsuh.business.purdue.edu leung.bio.purdue.edu m2m.tech.purdue.edu manfratsensors.physics.purdue.edu napis.ceris.purdue.edu new.admissions.purdue.edu new.cco.purdue.edu new.datamine.purdue.edu new.honors.purdue.edu new.www.purdue.edu news.uns.purdue.edu nomenclator.it.purdue.edu nomenclator.itap.purdue.edu nursery-inspection.ceris.purdue.edu polymers.centers.purdue.edu purdueplantdoctor.ceris.purdue.edu soilsoft.ag.purdue.edu spider.entm.purdue.edu surveyplanning.ceris.purdue.edu sustainable.ceris.purdue.edu twigaging.ceris.purdue.edu www-cyanosite.bio.purdue.edu www.admission.purdue.edu www.admissions.purdue.edu www.ansc.purdue.edu www.btny.purdue.edu www.business.purdue.edu www.care.purdue.edu www.cdext.purdue.edu www.datamine.purdue.edu www.entm.purdue.edu www.exed.purdue.edu www.gradschool.purdue.edu www.hhs.purdue.edu www.honors.purdue.edu www.hort.purdue.edu www.i-hope.purdue.edu www.irb.purdue.edu www.it.purdue.edu www.itap.purdue.edu www.krannert.purdue.edu www.pathwaytopurdue.purdue.edu www.pcrd.purdue.edu www.picc.purdue.edu www.robotics.purdue.edu www.smas.purdue.edu www.student-orgs.purdue.edu www.vet.purdue.edu zebase.bio.purdue.edu www.cyanosite.bio.purdue.edu www.extension.entm.purdue.edu www.m2m.tech.purdue.edu

Other domains in certificate

anglerarchive.org www.anglerarchive.org
cpsiccnexusworkshop2024.org www.cpsiccnexusworkshop2024.org
cyberbridges.org www.cyberbridges.org
evbatteryportal.org www.evbatteryportal.org
fishatlas.org www.fishatlas.org
globaleast.org www.globaleast.org
globalsoundscapes.org www.globalsoundscapes.org
hlb-reon.org www.hlb-reon.org
indianagearup.org www.indianagearup.org
midwestagrivoltaicsresilientcommunities.org www.midwestagrivoltaicsresilientcommunities.org
pesttracker.org www.pesttracker.org
purdueplantdoctor.com www.purdueplantdoctor.com
recordtheearth.org www.recordtheearth.org
soilexplorer.net www.soilexplorer.net
successnex.us www.successnex.us
successnexus.org www.successnexus.org