Understanding Google's Safe Browsing Diagnostic

[con771]

I have been removed from the google index as of Dec 20-23 sometime. Our site is over 4 years old (had a PR of 4)and I have no idea why. I've been doing everything I can to address and remedy the issue, so far without any luck.
I can across this tool in the posts:
[google.com...]

I used it but am unsure what to see. Everything seems normal expect that google last visited my site on Dec 20th.
Please help

[tedster]

The tool's main purpose is to show if a domain is known to have served up malware - that's the main point of it, rather than a spidering report. If a site is found to serve or even have a relationship to malware, that's often a reason for a ranking drop or even removal.

For a few domains that I just checked, the last visited information that the tool shows is much earlier than what the server logs show for googlebot visits -- it's also earlier than what Webmaster Tools says, for that matter. So I'm currently thinking that Google uses a dedicated bot to check for malware, and only that bot's visits are being reported by the Safe Browsing tool.

[edited by: tedster at 7:31 pm (utc) on Jan. 9, 2009]

[con771]

Is there another, more reliable way I can check to see if I have been removed from the index because of malware? I have not knowingly participated in it but I can't rule out any possibilities.

[tedster]

You can use the safe browsing API yourself, in current time, to check your pages for malware. [code.google.com...] has that information.

[con771]

looks complicated...but I'll give it a shot..GULP