Some time ago I installed SEO Ultimate plugin. It shows 404 hits to my blog pages, very helpful for my to avoid broken links.
One нерштп I can't understand is some user agent "Mozilla/4.0 (compatible; MSIE 6.0; Windows 98; Win 9x 4.90)" (and may be others) constantly hit my pages with correct permalink (which was changed recently (about week) and redirected accordingly) withh adding index.php to every link. I hope it would affect my search results, but still nervous about it.
Could anyone explain why it happens and what should I do to fix it?
Thanks in advance.