Patent attributes
A computer readable medium causing a processor to evaluate a URL: when an evaluation resides in a cache, determine whether the URL is safe based on the evaluation, and when an evaluation does not reside in cache: perform an evaluation for the URL using one or more virus scanners, store the evaluation in the cache and determine whether the URL is safe based on the evaluation, when the URL is safe, load and display the web page for the URL, and when the URL is not safe, block the web page for the URL from being loaded and displayed, further determine whether a QA check criterion is met, if so, send the URL to an evaluator for behavioral analysis of the web page of the URL, and store results of the behavioral analysis of the web page of the URL, received from the evaluator, in a QA database.

