This is Security area.

In general, I think security is becoming more and more complex.

Check some stuff:

• tools:
  • SiteDigger
    • http://www.mcafee.com/us/downloads/free-tools/sitedigger.aspx
  • Acunetix Web Vulnerability Scanner (of_course .. free)
    • http://www.acunetix.com/free-network-security-scanner/
  • DigiCert
  • Qualys BrowserCheck
  • BlindElephant Web Application Fingerprinter
  • OSSEC
  • Nessus
  • OpenVAS
• services:
  • Qualys SSL Server Test
  • Qualys FreeScan - Online Vulnerability Scanner
  • SecPoint FreeScan - Online Vulnerability Scanner
  • .. analyse the HTTP response headers ..
  • Mozilla Observatory
• resource(s):
  • CaCert - TLS/SSL Scanner