Google offers a free tool for testing the security of websites

Google has released Skipfish A software fault detection and sites devoted to Web services. Developed in C language, this tool performs a series of tests in an active, automatic and recursively the pages of a Web site: SQL Injection / XML input formats, caching, attacks Cross-site scripting, etc.. The results of these tests is then displayed as a report. The test results published in report form test results
Compared to similar existing solutions, such as Nikto , Nmap or Nessus Google intends to make a difference through the performance. Thus, the Web giant announced a capacity of processing 500 requests per second, or more than 2 000 in environment LAN / MAN. The editor says even getting a flow of 7 000 queries per second in a local configuration.