DNS Gurus

SSL Verification Bypassed

The server's SSL certificate could not be verified. The analysis was completed using insecure mode. Data may be less reliable.

Reason:

Hostname Mismatch - certificate is issued for *.253a.myswap.vip, *.3a.myswap.vip, *.a.awais.studio, *.admin.happyam.online, *.aguapotable.online, *.apiclassroom.cloudlabs.site, *.app.happyam.online, *.auth.schoolplus.store, *.awais.studio, not for client.invalidov.net

Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=cyuu.space
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
November 23, 2025
Valid Until
February 21, 2026 30 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
21:37:DC:2C:81:DC:81:DC:7F:7E:AD:03:55:0C:CA:E3:00:91:1D:EE:E9:C2:CB:32:CC:13:F7:FB:85:F5:C7:B0
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
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
aguapotable.online *.aguapotable.online *.hm.aguapotable.online *.mail.aguapotable.online *.sitemap.aguapotable.online *.webmail.aguapotable.online
*.a.awais.studio awais.studio *.awais.studio *.clients.awais.studio *.editor.awais.studio *.plugins.awais.studio
*.apiclassroom.cloudlabs.site cloudlabs.site *.cloudlabs.site *.lti-service.cloudlabs.site *.menu.cloudlabs.site *.renewal.cloudlabs.site
cyuu.space *.cyuu.space *.gs.cyuu.space *.zi.cyuu.space
desimovies.live *.desimovies.live *.ww38.desimovies.live
educo.au *.educo.au *.uts.educo.au *.ww17.educo.au *.ww38.educo.au
*.admin.happyam.online *.app.happyam.online *.c.happyam.online happyam.online *.happyam.online *.i.happyam.online *.j.happyam.online *.m.happyam.online *.maps.happyam.online *.ranet.happyam.online *.sitemaps.happyam.online
landmetzgerei-froehlich.de *.landmetzgerei-froehlich.de *.shop.landmetzgerei-froehlich.de
*.hcaptcha.leonbet-zerkalo10.xyz leonbet-zerkalo10.xyz *.leonbet-zerkalo10.xyz *.m.leonbet-zerkalo10.xyz
*.c6qbi.lolcorp.online lolcorp.online *.lolcorp.online
mahavastushruti.com *.mahavastushruti.com *.ww25.mahavastushruti.com
*.dev.mercilessgaming.xyz mercilessgaming.xyz *.mercilessgaming.xyz *.website.mercilessgaming.xyz *.ww25.mercilessgaming.xyz
*.253a.myswap.vip *.3a.myswap.vip *.docs.myswap.vip myswap.vip *.myswap.vip *.ww.myswap.vip
*.auth.schoolplus.store *.courses.schoolplus.store schoolplus.store *.schoolplus.store
*.pat.statefees.online statefees.online *.statefees.online
taosewu.site *.taosewu.site *.ww12.taosewu.site
*.owa.theoldhousehotel.co.uk theoldhousehotel.co.uk *.theoldhousehotel.co.uk
*.m.tiktokincome.online tiktokincome.online *.tiktokincome.online
turtle.academy *.turtle.academy *.ww38.turtle.academy
vidtower.io *.vidtower.io *.ww25.vidtower.io *.ww38.vidtower.io
waterheaterrepair442150.icu *.waterheaterrepair442150.icu