我在WordPress网站上的.htaccess中设置了规则。它看起来像这样：
# manual caching - force use of browser cache
FileETag MTime Size
<ifmodule mod_expires.c>
<filesmatch "\.(jpg|gif|png|css|js|ico|pdf|swf)$">
ExpiresActive on
ExpiresDefault "access plus 1 year"
</filesmatch>
</ifmodule>
从我读过的内容来看，这应该照顾所有过期的标题。但是当我运行gtmetrix或yslow测试时，他们仍然会给我这样的错误：
http://fonts.googleapis.com/css?family=Anonymous+Pro%3Aregular%2Citalic%2Cbold%2Cbolditalic%7C&ver=3.5.1 http://www.thisismydomain.org/wp-content/plugins/wp-ui/css/css.php?styles=wpui-light%7Cwpui-blue%7Cwpui-red%7Cwpui-green%7Cwpui-dark%7Cwpui-quark%7Cwpui-alma%7Cwpui-macish%7Cwpui-redmond%7Cwpui-sevin&ver=3.5.1 http://assets.pinterest.com/images/PinExt.png http://0.gravatar.com/avatar/41ff57b7b930a31656ab460e5a56d425?s=100&d=wavatar&r=G http://fonts.googleapis.com/css?family=Open+Sans:300,300italic,400,400italic,600,600italic,700,700italic&subset=latin,latin-ext http://0.gravatar.com/css/hovercard.css?ver=201311ac http://0.gravatar.com/css/services.css?ver=201311ac http://0.gravatar.com/js/gprofiles.js?ver=201311ac http://1.gravatar.com/avatar/ad516503a11cd5ca435acc9bb6523536?s=25&d=wavatar&forcedefault=y&r=G
其他页面显示过期标题的类似错误：
http://easyrotator.s3.amazonaws.com/.../FFF_arrow10_export.png (expiration not specified) http://s7.addthis.com/js/300/addthis_widget.js (expiration not specified) http://search.twitter.com/search.json?... (15 seconds) http://connect.facebook.net/en_US/all.js (5 minutes) https://apis.google.com/js/plusone.js (30 minutes) http://c520866.r66.cf2.rackcdn.com/1/js/easy_rotator.min.js (33.2 minutes) http://intensedebate.com/js/wordpressTemplateLinkWrapper2.php?... (60 minutes) http://i.po.st/share/script/post-widget.js (3 hours) http://www.thisismydomain.org/wp-content/plugins/wp-ui/css/css.php?styles=wpui-light%7Cwpui-blue%7Cwpui-red%7Cwpui-green%7Cwpui-dark%7Cwpui-quark%7Cwpui-alma%7Cwpui-macish%7Cwpui-redmond%7Cwpui-sevin&ver=3.5.1 (20 hours)
我认为这是因为那些特定的css和js不在我的域名中？在这种情况下，为了解决这个问题，我能做些什么，并提高我的速度分数？或者我还应该做些什么以获得更好的结果？对于thisism目录的那个...文件扩展名是css.php，所以我不确定如何在htaccess中为此设置一个到期日。感谢任何人提供的任何指导！