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mod_deflateとmod_headersを使用して、サイトの読み込み速度を下げようとしています。これにより、コンテンツが圧縮され、有効期限が設定されますが、コンテンツのETagも削除されます。ただし、Yslowによると、画像（png）、css、およびjsからETagを削除しているわけではありません。

私の.htaccessコード：

<IfModule mod_deflate.c>
    <IfModule mod_setenvif.c>
        <IfModule mod_headers.c>
            SetEnvIfNoCase ^(Accept-EncodXng|X-cept-Encoding|X{15}|~{15}|-{15})$ ^((gzip|deflate)\s*,?\s*)+|[X~-]{4,13}$            HAVE_Accept-Encoding
            RequestHeader append Accept-Encoding "gzip,deflate" env=HAVE_Accept-Encoding
        </IfModule>
    </IfModule>
    <IfModule filter_module>
        FilterDeclare   COMPRESS
        FilterProvider  COMPRESS  DEFLATE resp=Content-Type $text/html
        FilterProvider  COMPRESS  DEFLATE resp=Content-Type $text/css
        FilterProvider  COMPRESS  DEFLATE resp=Content-Type $text/plain
        FilterProvider  COMPRESS  DEFLATE resp=Content-Type $text/xml
        FilterProvider  COMPRESS  DEFLATE resp=Content-Type $text/x-component
        FilterProvider  COMPRESS  DEFLATE resp=Content-Type $application/javascript
        FilterProvider  COMPRESS  DEFLATE resp=Content-Type $application/json
        FilterProvider  COMPRESS  DEFLATE resp=Content-Type $application/xml
        FilterProvider  COMPRESS  DEFLATE resp=Content-Type $application/xhtml+xml
        FilterProvider  COMPRESS  DEFLATE resp=Content-Type $application/rss+xml
        FilterProvider  COMPRESS  DEFLATE resp=Content-Type $application/atom+xml
        FilterProvider  COMPRESS  DEFLATE resp=Content-Type $application/vnd.ms-fontobject
        FilterProvider  COMPRESS  DEFLATE resp=Content-Type $image/svg+xml
        FilterProvider  COMPRESS  DEFLATE resp=Content-Type $application/x-font-ttf
        FilterProvider  COMPRESS  DEFLATE resp=Content-Type $font/opentype
        FilterChain     COMPRESS
        FilterProtocol  COMPRESS  DEFLATE change=yes;byteranges=no
    </IfModule>
    <IfModule !mod_filter.c>
        # Legacy versions of Apache
        AddOutputFilterByType DEFLATE text/html text/plain text/css application/json
        AddOutputFilterByType DEFLATE application/javascript
        AddOutputFilterByType DEFLATE text/xml application/xml text/x-component
        AddOutputFilterByType DEFLATE application/xhtml+xml application/rss+xml application/atom+xml
        AddOutputFilterByType DEFLATE image/svg+xml application/vnd.ms-fontobject application/x-font-ttf font/opentype
    </IfModule>
</IfModule>
<IfModule mod_expires.c>
    ExpiresActive on
    ExpiresDefault                          "access plus 1 month"
    ExpiresByType text/cache-manifest       "access plus 0 seconds"
    ExpiresByType text/html                 "access plus 0 seconds"
    ExpiresByType text/xml                  "access plus 0 seconds"
    ExpiresByType application/xml           "access plus 0 seconds"
    ExpiresByType application/json          "access plus 0 seconds"
    ExpiresByType application/rss+xml       "access plus 1 hour"
    ExpiresByType image/x-icon              "access plus 1 month" 
    ExpiresByType image/gif                 "access plus 1 month"
    ExpiresByType image/png                 "access plus 1 month"
    ExpiresByType image/jpg                 "access plus 1 month"
    ExpiresByType image/jpeg                "access plus 1 month"
    ExpiresByType video/ogg                 "access plus 1 month"
    ExpiresByType audio/ogg                 "access plus 1 month"
    ExpiresByType video/mp4                 "access plus 1 month"
    ExpiresByType video/webm                "access plus 1 month"
    ExpiresByType text/x-component          "access plus 1 month"
    ExpiresByType font/truetype             "access plus 1 month"
    ExpiresByType font/opentype             "access plus 1 month"
    ExpiresByType application/x-font-woff   "access plus 1 month"
    ExpiresByType image/svg+xml             "access plus 1 month"
    ExpiresByType application/vnd.ms-fontobject "access plus 1 month"
    ExpiresByType text/css                  "access plus 1 year"
    ExpiresByType application/javascript    "access plus 1 year"
    ExpiresByType text/javascript           "access plus 1 year"
    <IfModule mod_headers.c>
        Header append Cache-Control "public"
    </IfModule>
</IfModule>
<IfModule mod_headers.c>
    Header unset ETag
</IfModule>
FileETag None

取得元：http ：//html5boilerplate.com/

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1 に答える 1

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私はそれを理解したと思います。

YSlowは結果をキャッシュしていました。ブラウザを変更すると（SafariからFirefoxに）、ETagが実際に削除されたことが示されているようです。

于 2011-11-26T17:40:47.317 に答える