other server errors can cause a miscount. Check your error log for an unusual number of errors.

Your raw server logs will provide more detailed and useful information on the problem. Please look at your server logs – you will probably find that our count is accurate. If not, please forward your raw server logs for the period in question (please forward the "access," "referrer" and error logs). We will go through the logs and attempt to determine why our count differs from yours.