DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 1
Let's Encrypt logo Let's Encrypt

Certificate Information

Subject
CN=esada.xyz
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
February 17, 2026
Valid Until
May 18, 2026 84 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
C2:79:75:09:E3:11:0D:96:33:E9:C6:33:F6:5A:0C:C9:2A:B9:CB:1B:13:AD:86:67:59:F0:B3:3A:73:3F:45:E0
Alternative Names
86 domains

Security Configuration

TLS Protocols
TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
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

86 domains
studivz.at *.studivz.at *.support.studivz.at

Other domains in certificate

*.0u12d.81ex1.xyz *.1919006.81ex1.xyz *.3545809.81ex1.xyz *.4729521.81ex1.xyz *.4kxnn.81ex1.xyz *.5401832.81ex1.xyz *.5qutp.81ex1.xyz *.603165.81ex1.xyz 81ex1.xyz *.81ex1.xyz *.8673152.81ex1.xyz *.8hy5t.81ex1.xyz *.8r9pg.81ex1.xyz *.95vhx.81ex1.xyz *.9939977.81ex1.xyz *.admin.81ex1.xyz *.api.81ex1.xyz *.apps.81ex1.xyz *.atendimento.81ex1.xyz *.auiyfy6iui.81ex1.xyz *.crm.81ex1.xyz *.cuyk.81ex1.xyz *.feew6.81ex1.xyz *.free33.81ex1.xyz *.hgsq5.81ex1.xyz *.ifjhrtirxbs28s9.81ex1.xyz *.iovou.81ex1.xyz *.kwmii9488634.81ex1.xyz *.l0r4m.81ex1.xyz *.l7nqb.81ex1.xyz *.larjeauiyfy6iui.81ex1.xyz *.m.81ex1.xyz *.mail.81ex1.xyz *.me7q1.81ex1.xyz *.mjrnm39ir6.81ex1.xyz *.new.81ex1.xyz *.nmgwk39ir6.81ex1.xyz *.o7p4x.81ex1.xyz *.ooswxtest.81ex1.xyz *.osc36.81ex1.xyz *.portal.81ex1.xyz *.qakt3.81ex1.xyz *.qpuov.81ex1.xyz *.ques8.81ex1.xyz *.s28s9.81ex1.xyz *.shop.81ex1.xyz *.tirxbs28s9.81ex1.xyz *.tmwvsauiyfy6iui.81ex1.xyz *.tpxa3.81ex1.xyz *.u46cv.81ex1.xyz *.uw9i.81ex1.xyz *.wsct4.81ex1.xyz *.wslq2.81ex1.xyz *.www.81ex1.xyz *.y04uw.81ex1.xyz *.y6iui.81ex1.xyz *.yvqjiadmin.81ex1.xyz *.yxgfixrqcg.81ex1.xyz *.z44ag.81ex1.xyz *.zyaai4kxnn.81ex1.xyz
bizorosper.qpon *.bizorosper.qpon *.webshop.bizorosper.qpon
*.525v4.esada.xyz *.cpcontacts.esada.xyz *.dev.esada.xyz esada.xyz *.esada.xyz *.l2aa8.esada.xyz
*.16bz5.lin-keyz.top *.60t9v.lin-keyz.top *.j2zfz.lin-keyz.top *.l8kqx.lin-keyz.top lin-keyz.top *.lin-keyz.top *.nxc75.lin-keyz.top *.uw9i.lin-keyz.top
*.get.the-education-help.com *.ildcard.the-education-help.com *.o53xk15xugse0azb.the-education-help.com *.sitemap.the-education-help.com the-education-help.com *.the-education-help.com