Over the last month I’ve had reports from two users about this error
PHP Warning: readfile (themes/cleandex/images/pr///www.google.com/terms_of_service.html)
They did not know what the error meant. Well it’s quite obvious that their site has been banned from accessing Google (by domain name from what I can tell). The error message may vary slightly due to what theme you’re using, but it still ends with www.google.com/terms_of_service.html
The users had set their Pagerank Cache at a very low number (they did not tell me what they used) and their site literally abused Google and they were banned.
Lets look at an example. If you had 5000 visitors a day and had the cache set to 0 and those visitors looked at 10 pages each that would mean you’d be making 50,000 requests a day to Google.
That’s nothing but a denial of service attack!
Leave this setting at a minimum of 30. If you have a large amount of traffic you might even want to increase that number to lower your number of requests over a period of time.
It’s a known fact that Page Rank does not update once a month, so a setting of 30 is already low. If you’re desperate to update your PR numbers you can always flush the PR table in the database and then change your settings to a realistic number like 30 or 45.
