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=femefun.co
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
April 29, 2026
Valid Until
July 28, 2026 81 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
DA:93:95:87:B2:D2:7D:D1:7D:D0:33:11:2C:17:F6:3B:49:B1:78:B3:6D:B8:C6:99:38:75:6C:6E:5D:2F:36:D3
Alternative Names
90 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

90 domains
formasi.it *.formasi.it *.apl.formasi.it *.app.formasi.it *.ar.formasi.it *.asp.formasi.it *.astelmail.formasi.it *.awvpn.formasi.it *.desktop.formasi.it *.est-vpn.formasi.it *.gw.formasi.it *.helpdesk.formasi.it *.hostmaster.formasi.it *.i.formasi.it *.identity.formasi.it *.idpd.formasi.it *.khapps.formasi.it *.lb.formasi.it *.mobileconnect.formasi.it *.owa.formasi.it *.portal.formasi.it *.rdp.formasi.it *.rds.formasi.it *.ssl.formasi.it *.sslvpn.formasi.it *.vpn.formasi.it *.vpn2x.formasi.it *.vpn5b.formasi.it *.vpnadm.formasi.it *.vpnapac.formasi.it *.vpngw.formasi.it *.vpnpa.formasi.it *.www.formasi.it *.xd.formasi.it

Other domains in certificate

*.3738cb11-f560-4ea9-b5b7-d49a5e09e709.chieftrade.io *.app.chieftrade.io *.blog.chieftrade.io *.box.chieftrade.io chieftrade.io *.chieftrade.io *.dan.chieftrade.io *.demo.chieftrade.io *.dev.chieftrade.io *.dlindmail1.chieftrade.io *.e57286c3-e190-463d-814b-fcd7e6d703b1.chieftrade.io *.exchange.chieftrade.io *.mail.chieftrade.io *.mail1.chieftrade.io *.mailin.chieftrade.io *.mta-sts.chieftrade.io *.mx10.chieftrade.io *.qpjfqblog.chieftrade.io *.server.chieftrade.io *.shop.chieftrade.io *.support.chieftrade.io *.ww1.chieftrade.io *.www.chieftrade.io
*.demo.femefun.co *.dev.femefun.co femefun.co *.femefun.co *.mobile.femefun.co *.old.femefun.co *.store.femefun.co *.test.femefun.co *.w.femefun.co *.webmail.femefun.co
jerem-aero.fr *.jerem-aero.fr
*.demo.solanabeachrealty.com *.dev.solanabeachrealty.com *.shop.solanabeachrealty.com *.sitemaps.solanabeachrealty.com solanabeachrealty.com *.solanabeachrealty.com *.staging.solanabeachrealty.com *.store.solanabeachrealty.com *.test.solanabeachrealty.com
*.170dd205-420a-486f-8aeb-b86879100ee3.tumblliving.com *.assets.tumblliving.com *.cloud.tumblliving.com *.mta-sts.tumblliving.com *.new.tumblliving.com *.rd.tumblliving.com *.rds.tumblliving.com *.rdweb.tumblliving.com *.remote.tumblliving.com tumblliving.com *.tumblliving.com *.www.tumblliving.com