Ostatnio moją pasją było gonienie mojej bardzo rozbudowanej witryny, która z racji objętości po prostu zwalniała. Przeglądając net a szczególnie kursy organizowane w ramach Joomla day można znaleźć bardzo dobre rozwiązanie z organizacją pamięci cache w Joomli. Od dawna interesowało mnie, dlaczego internetowe narzędzia wskazują na brak użycia funkcji Expire cache dla strony. Zastosowałem rozwiązanie z dopisaniem do .htacess kodu poniżej, który rozwiązuje problem z brakiem Expire cache, kompresją gzip. Moja strona ładuje się teraz z ok. 12 sekund do 4. Świetna sprawa.
Opis rozwiązaniu tu: http://www.joomla.pl/publikacje/674-...woj-stron.html
Polecam bo warto. Moja witryna od razu awansowała z oceny D na C. Pozostał mi problem z liczbą odnośników do innych stron - przede wszystkim strumiń facebooka, lokalnej pogody, co jeszcze zaniża mi ocenę. W wolnej chwili pobawię się z przeniesieniem skryptów javy na sam koniec ładowania się strony, przed znacznik bottom.
Kod PHP:
# ----------------------------------------------------------------------
# Gzip compression
# ----------------------------------------------------------------------
<IfModule mod_deflate.c>
# Force deflate for mangled headers developer.yahoo.com/blogs/ydn/posts/2010/12/pushing-beyond-gzipping/
<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>
# Compress all output labeled with one of the following MIME-types
# (for Apache versions below 2.3.7, you don't need to enable `mod_filter`
# and can remove the `<IfModule mod_filter.c>` and `</IfModule>` lines as
# `AddOutputFilterByType` is still in the core directives)
<IfModule mod_filter.c>
AddOutputFilterByType DEFLATE application/atom+xml \
application/javascript \
application/json \
application/rss+xml \
application/vnd.ms-fontobject \
application/x-font-ttf \
application/xhtml+xml \
application/xml \
font/opentype \
image/svg+xml \
image/x-icon \
text/css \
text/html \
text/plain \
text/x-component \
text/xml
</IfModule>
</IfModule>
# ----------------------------------------------------------------------
# Expires headers (for better cache control)
# ----------------------------------------------------------------------
# These are pretty far-future expires headers.
# They assume you control versioning with filename-based cache busting
# Additionally, consider that outdated proxies may miscache
# www.stevesouders.com/blog/2008/08/23/revving-filenames-dont-use-querystring/
# If you don't use filenames to version, lower the CSS and JS to something like
# "access plus 1 week".
<IfModule mod_expires.c>
ExpiresActive on
# Perhaps better to whitelist expires rules? Perhaps.
ExpiresDefault "access plus 1 month"
# cache.appcache needs re-requests in FF 3.6 (thanks Remy ~Introducing HTML5)
ExpiresByType text/cache-manifest "access plus 60 seconds"
# Your document html
ExpiresByType text/html "access plus 60 seconds"
# Data
ExpiresByType application/json "access plus 60 seconds"
ExpiresByType application/xml "access plus 60 seconds"
ExpiresByType text/xml "access plus 60 seconds"
# Feed
ExpiresByType application/atom+xml "access plus 1 hour"
ExpiresByType application/rss+xml "access plus 1 hour"
# Favicon (cannot be renamed)
ExpiresByType image/x-icon "access plus 1 week"
# Media: images, video, audio
ExpiresByType audio/ogg "access plus 1 month"
ExpiresByType image/gif "access plus 1 month"
ExpiresByType image/jpeg "access plus 1 month"
ExpiresByType image/png "access plus 1 month"
ExpiresByType video/mp4 "access plus 1 month"
ExpiresByType video/ogg "access plus 1 month"
ExpiresByType video/webm "access plus 1 month"
# HTC files (css3pie)
ExpiresByType text/x-component "access plus 1 month"
# Webfonts
ExpiresByType application/vnd.ms-fontobject "access plus 1 month"
ExpiresByType application/x-font-ttf "access plus 1 month"
ExpiresByType application/x-font-woff "access plus 1 month"
ExpiresByType font/opentype "access plus 1 month"
ExpiresByType image/svg+xml "access plus 1 month"
# CSS and JavaScript
ExpiresByType application/javascript "access plus 1 year"
ExpiresByType text/css "access plus 1 year"
</IfModule>
# ----------------------------------------------------------------------
# Prevent mobile network providers from modifying your site
# ----------------------------------------------------------------------
# The following header prevents modification of your code over 3G on some
# European providers.
# This is the official 'bypass' suggested by O2 in the UK.
# <IfModule mod_headers.c>
# Header set Cache-Control "no-transform"
# </IfModule>
# ----------------------------------------------------------------------
# ETag removal
# ----------------------------------------------------------------------
# FileETag None is not enough for every server.
<IfModule mod_headers.c>
Header unset ETag
</IfModule>
# Since we're sending far-future expires, we don't need ETags for
# static content.
# developer.yahoo.com/performance/rules.html#etags
FileETag None