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=rfreenet.de
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
April 11, 2026
Valid Until
July 10, 2026 47 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
AA:D5:87:9F:A5:E0:78:48:9A:40:B2:76:48:76:A9:01:48:D1:48:B1:D6:B3:FE:7D:40:97:61:B9:0E:B9:2B:5E
Alternative Names
89 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

89 domains
wapsky.ru *.wapsky.ru *.lov.wapsky.ru

Other domains in certificate

avicndugu.com *.avicndugu.com *.business.avicndugu.com *.code.avicndugu.com *.db.avicndugu.com *.learn.avicndugu.com *.local.avicndugu.com *.new.avicndugu.com *.node.avicndugu.com *.phones.avicndugu.com *.saas-tailwind.avicndugu.com *.ss.avicndugu.com
*.billing.biorelajacion.com biorelajacion.com *.biorelajacion.com *.invoice.biorelajacion.com *.lms.biorelajacion.com *.mx.biorelajacion.com *.stg.biorelajacion.com
blankgc.com.au *.blankgc.com.au *.webmail.blankgc.com.au *.ww84.blankgc.com.au
*.app.clxr.io clxr.io *.clxr.io *.demo.clxr.io
coatta.it *.coatta.it
*.a.cuissi.info *.api.cuissi.info *.app.cuissi.info *.blog.cuissi.info cuissi.info *.cuissi.info *.dfmxtshop.cuissi.info *.hostmaster.cuissi.info *.new.cuissi.info *.staging.cuissi.info
ecssettlement.com *.ecssettlement.com
*.bigdata.kurebeach.net kurebeach.net *.kurebeach.net
*.access.leatherworkz.com *.autodiscover.leatherworkz.com *.ciscoasa.leatherworkz.com *.cloud.leatherworkz.com *.imap.leatherworkz.com leatherworkz.com *.leatherworkz.com *.office.leatherworkz.com *.portal.leatherworkz.com *.sip.leatherworkz.com
marcellino.au *.marcellino.au
motivepixstudio.com *.motivepixstudio.com
paoluz.net *.paoluz.net *.sitemap.paoluz.net *.ww16.paoluz.net *.ww25.paoluz.net *.www.paoluz.net
*.news.pornguaranteed.pro pornguaranteed.pro *.pornguaranteed.pro
*.mail.rfreenet.de rfreenet.de *.rfreenet.de
*.api.rtp-preman69.click *.hostmaster.rtp-preman69.click *.m.rtp-preman69.click rtp-preman69.click *.rtp-preman69.click *.vnwkrlogin.rtp-preman69.click *.www.rtp-preman69.click
trellas.club *.trellas.club *.ww25.trellas.club *.ww38.trellas.club
uphwarranty.com *.uphwarranty.com
*.ww1.xxkfcav.xyz xxkfcav.xyz *.xxkfcav.xyz