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=youngla.co
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
February 04, 2026
Valid Until
May 05, 2026 76 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
7D:FF:E1:4A:2D:24:9E:E6:85:9F:39:00:73:F3:A5:4D:F2:9B:FB:84:EB:13:BB:1C:76:B7:19:38:A3:44:5B:30
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
duifu.com *.duifu.com *.anyconnect.duifu.com *.api.duifu.com *.forum.duifu.com *.forums.duifu.com

Other domains in certificate

*.backup.cartello.com *.blog.cartello.com cartello.com *.cartello.com *.demo.cartello.com *.ffffffffffff.cartello.com *.mail.cartello.com *.ww16.cartello.com *.ww17.cartello.com *.ww25.cartello.com
class10icse.xyz *.class10icse.xyz *.ww25.class10icse.xyz
comersperror.com *.comersperror.com
csatego.pl *.csatego.pl
envnet.org *.envnet.org
*.eagle.explorewildlife.com explorewildlife.com *.explorewildlife.com *.facebook.explorewildlife.com *.fr.explorewildlife.com *.mba.explorewildlife.com *.serial.explorewildlife.com *.team.explorewildlife.com *.users.explorewildlife.com
gdapk.net *.gdapk.net
iflxiptv.com *.iflxiptv.com
*.blog.igrejaviva24horas.com.br igrejaviva24horas.com.br *.igrejaviva24horas.com.br *.ww38.igrejaviva24horas.com.br
*.health.lacasuca.com lacasuca.com *.lacasuca.com *.shopping.lacasuca.com
learntoflygame.com *.learntoflygame.com *.sitemap.learntoflygame.com *.ww16.learntoflygame.com *.ww17.learntoflygame.com
lucky7storage.com *.lucky7storage.com
*.cdn.momsporns.com *.mail.momsporns.com momsporns.com *.momsporns.com *.ww38.momsporns.com *.www.momsporns.com
*.analytics.mplab.io *.app.mplab.io *.bot.mplab.io *.gitlab.mplab.io mplab.io *.mplab.io *.registry.mplab.io *.simbank.mplab.io *.wiki.mplab.io *.ww25.mplab.io
*.bbs.newpalm.com *.emai.newpalm.com *.email.newpalm.com *.mms.newpalm.com newpalm.com *.newpalm.com
*.app.orangek.org *.cdn.orangek.org *.down.orangek.org orangek.org *.orangek.org *.www.orangek.org
sieudam.me *.sieudam.me
tayduthantuong.mobi *.tayduthantuong.mobi
*.secure.youngla.co youngla.co *.youngla.co
zoechp.cc *.zoechp.cc