caching-with-HTACCESS-examples

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########################### HTACCESS optimization (TT's version) #################
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######################### ShortLink: https://github.com/ttodua/useful-php-scripts/blob/master/caching-with-HTACCESS-examples #######################
# NOTE 1: READ ALL NOTES & COMMENTS in this file, PLEASE!
# NOTE 2: This approaches are needed very rarely. If you use CMS (i.e. WP or etc) there are excellent caching plugins, and use them.
# NOTE 3: In some low-quality hostings, these codes won't work in HTACCESS. If you are serious, get a priced hosting.
# NOTE 4: In some cases, if your hosting is limited, you can use different "CACHING" and "COMPRESSION" methods, 
# 	  rather than the my codes. For this, read the commented lines in those blocks.
# NOTE 5: Remember, in HTACCESS, instead of ONE-LINE fileType commands, i.e.
#            ExpiresByType image/jpg "access plus 3 months"  
#        You can use:
#            <FilesMatch "\.(jpg|png)$">
#              ExpiresDefault "access plus 3 months"
#            </FilesMatch>
# NOTE 6: This doesn't user barely-used "Manifest" approaches. (Who needs them, read: http://goo.gl/3AFjt3 )
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########### Turn off `Last-Modified`     ##################
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# Description: If you remove the `Last-Modified` and `ETag` header, you will totally eliminate
#              `If-Modified-Since` and `If-None-Match` requests and their `304 Not Modified` 
#              responses, so a file will stay cached without checking for updates until the 
#              `Expires` header indicates new content is available!
# NOTE 1: Sometimes, your existing .htaccess may contains strange `Vary` commands (i.e.  WordFence
#         sets it to "Accept-Encoding, Cookie" --> https://goo.gl/9h2v52 ), so I re-set `Vary`. 
#         Otherwise images,js... CACHING doesnt work!
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<ifModule mod_headers.c>
    Header unset Last-Modified
    Header set Vary "Accept-Encoding"
</ifModule>


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################## Declaring MIME types ###################
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# Description: Sometimes hosting doesnt automatically do this. (more at: https://goo.gl/imoiAd )
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<IfModule mod_mime.c>
  # Data interchange
    AddType application/atom+xml                        atom
    AddType application/json                            json map topojson
    AddType application/ld+json                         jsonld
    AddType application/rss+xml                         rss
    AddType application/vnd.geo+json                    geojson
    AddType application/xml                             rdf xml
  # JavaScript
    AddType application/javascript                      js
  # Media files
    AddType audio/mp4                                   f4a f4b m4a
    AddType audio/ogg                                   oga ogg opus
    AddType image/bmp                                   bmp
    AddType image/svg+xml                               svg svgz
    AddType image/webp                                  webp
    AddType video/mp4                                   f4v f4p m4v mp4
    AddType video/ogg                                   ogv
    AddType video/webm                                  webm
    AddType video/x-flv                                 flv
    AddType image/x-icon                                cur ico
  # Web fonts
    AddType application/font-woff                       woff
    AddType application/font-woff2                      woff2
    AddType application/vnd.ms-fontobject               eot
	  # This is needed for some Browsers (more at: http://pastebin.com/raw/Av9n2RqR )
    AddType application/x-font-ttf                      ttc ttf
    AddType font/opentype                               otf
  # Other
    AddType application/octet-stream                    safariextz
    AddType application/x-bb-appworld                   bbaw
    AddType application/x-chrome-extension              crx
    AddType application/x-opera-extension               oex
    AddType application/x-xpinstall                     xpi
    AddType text/vcard                                  vcard vcf
    AddType text/vnd.rim.location.xloc                  xloc
    AddType text/vtt                                    vtt
    AddType text/x-component                            htc
</IfModule>
	
	
	
	
	
	
	
	
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##############   CACHING with `EXPIRE`  method)   ############
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### Description:  cache your files with `EXPIRES` method.
# NOTE 1: Caching explained:  (a) https://goo.gl/kF3Nzb (b) https://goo.gl/USqPGl
# NOTE 2: If caching doesnt work, read the above paragraph "Turning off LAST-MODIFIED"
# NOTE 3: If your hosting cant use `EXPIRES`,try such `Cache-Control`: http://goo.gl/gME7cA
# NOTE 4: `EXPIRES` activates `mod_expires`, which automatically 
#           generates "Cache-Control:max-age=xxxx" header,  so you dont need to add that.
# NOTE 5: Instead of "access plus 1 day" you can use A86400 (or whatever seconds you want ).
# NOTE 6: If you use FALCON/HTML caching, then remove the "text/html" line.

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<IfModule mod_headers.c>
    Header append Cache-Control "public"
</IfModule>
<IfModule mod_expires.c>
    ExpiresActive On
    ExpiresDefault                         "access plus 1 month"
    # Media
    ExpiresByType image/jpg                "access plus 1 year"
    ExpiresByType image/jpeg               "access plus 1 year"
    ExpiresByType image/gif                "access plus 1 year"
    ExpiresByType image/png                "access plus 1 year"
    ExpiresByType image/bmp                "access plus 1 year"
    ExpiresByType image/webp               "access plus 1 year"
    ExpiresByType video/ogg                "access plus 1 year"
    ExpiresByType audio/ogg                "access plus 1 year"
    ExpiresByType video/mp4                "access plus 1 year"
    ExpiresByType video/webm               "access plus 1 year"
    ExpiresByType image/x-icon             "access plus 1 week"
    ExpiresByType image/vnd.microsoft.icon "access plus 1 week"
    # Webfonts
    ExpiresByType image/svg+xml            "access plus 1 month"
    ExpiresByType application/vnd.ms-fontobject "access plus 3 months"
    ExpiresByType font/eot                 "access plus 3 months"
    ExpiresByType font/opentype            "access plus 3 months"
    ExpiresByType font/truetype            "access plus 3 months"
    ExpiresByType application/x-font-ttf   "access plus 3 months"
    ExpiresByType application/font-woff    "access plus 3 months"
    ExpiresByType application/x-font-woff  "access plus 3 months"
    ExpiresByType font/woff                "access plus 3 months"
    ExpiresByType application/font-woff2   "access plus 3 months"
    # Other
    ExpiresByType text/html                "access plus 1 day"
    ExpiresByType text/css                 "access plus 1 week"
    ExpiresByType text/javascript          "access plus 1 month"
    ExpiresByType text/x-javascript        "access plus 1 month"
    ExpiresByType application/x-javascript "access plus 1 month"
    ExpiresByType application/javascript   "access plus 1 month"
    ExpiresByType application/pdf          "access plus 4 months"
    ExpiresByType application/x-shockwave-flash "access plus 1 month"
	# Data interchange
    ExpiresByType text/xml                 "access plus 0 seconds"
    ExpiresByType application/xml          "access plus 0 seconds"
    ExpiresByType application/json         "access plus 0 seconds"
    ExpiresByType application/ld+json      "access plus 0 seconds"
    ExpiresByType application/schema+json  "access plus 0 seconds"
    ExpiresByType application/vnd.geo+json "access plus 0 seconds"
    ExpiresByType application/rss+xml      "access plus 1 hour"
    ExpiresByType application/rdf+xml      "access plus 1 hour"
    ExpiresByType application/atom+xml     "access plus 1 hour"
</IfModule>

	
	
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########### Turn off ETags (Entity tags) ##################
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# Description: ETags are a mechanism to check for a newer version of a cached file. By removing
#               the ETag header, you disable caches & browsers from being able to validate files,
#               so they are forced to rely on your Cache-Control and Expires header.  
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<ifModule mod_headers.c>
    Header unset ETag
</ifModule>
# the above "unset" is better, because `FileETag None` doesn't work always
FileETag None


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###################### For Security  ######################
# Disable sniff (more at: http://pastebin.com/raw/KWYyHwLy )
<IfModule mod_headers.c>
    Header set X-Content-Type-Options "nosniff"
</IfModule>	
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################ COMPRESSION (`DEFLATE` method)  ############
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# Description:  send compressed data to visitor, thus saving Bandwith and SPEED-UP site.
# NOTE 1: If your hosting cant use `DEFLATE` method, use GZIP: http://goo.gl/qEW8Zb
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<IfModule mod_deflate.c>
    AddOutputFilterByType DEFLATE text/css text/html text/javascript text/plain text/xml
    AddOutputFilterByType DEFLATE font/opentype font/otf font/ttf image/svg+xml image/x-icon
    AddOutputFilterByType DEFLATE application/vnd.ms-fontobject application/x-font-ttf
    AddOutputFilterByType DEFLATE application/x-font application/x-font-truetype
    AddOutputFilterByType DEFLATE application/x-font-opentype application/x-font-otf
    AddOutputFilterByType DEFLATE application/javascript application/x-javascript
    AddOutputFilterByType DEFLATE application/xhtml+xml application/xml application/rss+xml
</IfModule>

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###################################### END #######################################
#######################   HTACCESS optimization (TT's version)    ################
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