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Antivirus writers have agreed for their software to recognize a standard "fake" virus file - the EICAR file, to let users check, that the software is up and running.
Are there any equivalent test sites for trying out McAfee SiteAdvisor, Kaspersky URL Advisor, Norton Safe Web, Google Safe Browsing, and others? Are there any Malware test sites? If yes can you share the site names that test out whether their reputation services are working?