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Why does Report state browser caching not set when waterfall clearly shows it is?
02-24-2018, 05:12 AM
Post: #1
Why does Report state browser caching not set when waterfall clearly shows it is?
I run a test which gives an F for browser caching and a long list of items with no expiry header.

But the waterfall clearly shows that on second load those files aren't' being redownloaded, and I know expiry headers are being applied in htaccess.

This happens on a number of sites - here's an example
https://www.webpagetest.org/result/18022...view_step1

Any idea what's up with this?

Paul
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02-24-2018, 11:51 AM
Post: #2
RE: Why does Report state browser caching not set when waterfall clearly shows it is?
Because you're not caching them properly. Gtmetrix returns the same.
https://gtmetrix.com/reports/www.cochran...a/lbLMpc38
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02-24-2018, 12:33 PM
Post: #3
RE: Why does Report state browser caching not set when waterfall clearly shows it is?
(02-24-2018 11:51 AM)avalanch Wrote:  Because you're not caching them properly. Gtmetrix returns the same.
https://gtmetrix.com/reports/www.cochran...a/lbLMpc38

And yet I'm using the exact htaccess caching code provided by GTMetrix themselves. And the waterfalls from webpagetest clearly shows that the objects ARE cached as they are not redownloading on second page load. Further supported by the fact that the repeat page load is twice as fast as initial page load.
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02-25-2018, 06:44 AM
Post: #4
RE: Why does Report state browser caching not set when waterfall clearly shows it is?
I didn't say that you weren't caching things, I said that you're not doing it properly.

For reference, here's what I use and it checks out fine.

Code:
# BEGIN W3TC Browser Cache
<IfModule mod_mime.c>
AddType text/css .css
AddType application/javascript .js
AddType application/x-javascript .js
AddType text/html .html .htm
AddType text/richtext .rtf .rtx
AddType image/svg+xml .svg .svgz
AddType text/plain .txt
AddType text/xsd .xsd
AddType text/xsl .xsl
AddType text/xml .xml
AddType video/asf .asf .asx .wax .wmv .wmx
AddType video/avi .avi
AddType image/bmp .bmp
AddType application/java .class
AddType video/divx .divx
AddType application/msword .doc .docx
AddType application/x-msdownload .exe
AddType image/gif .gif
AddType application/x-gzip .gz .gzip
AddType image/x-icon .ico
AddType image/jpeg .jpg .jpeg .jpe
AddType application/vnd.ms-access .mdb
AddType audio/midi .mid .midi
AddType video/quicktime .mov .qt
AddType audio/mpeg .mp3 .m4a
AddType video/mp4 .mp4 .m4v
AddType video/mpeg .mpeg .mpg .mpe
AddType application/vnd.ms-project .mpp
AddType application/vnd.oasis.opendocument.database .odb
AddType application/vnd.oasis.opendocument.chart .odc
AddType application/vnd.oasis.opendocument.formula .odf
AddType application/vnd.oasis.opendocument.graphics .odg
AddType application/vnd.oasis.opendocument.presentation .odp
AddType application/vnd.oasis.opendocument.spreadsheet .ods
AddType application/vnd.oasis.opendocument.text .odt
AddType audio/ogg .ogg
AddType application/pdf .pdf
AddType image/png .png
AddType application/vnd.ms-powerpoint .pot .pps .ppt .pptx
AddType audio/x-realaudio .ra .ram
AddType application/x-shockwave-flash .swf
AddType application/x-tar .tar
AddType image/tiff .tif .tiff
AddType audio/wav .wav
AddType audio/wma .wma
AddType application/vnd.ms-write .wri
AddType application/vnd.ms-excel .xla .xls .xlsx .xlt .xlw
AddType application/zip .zip
</IfModule>
# END W3TC Browser Cache

# START E-Tag
<ifModule mod_headers.c>
Header unset ETag
</ifModule>
FileETag None
# END E-Tag

# START Deny attempts to view the Htaccess file.
<Files .htaccess>
Order allow,deny
Deny from all
</Files>
# END Deny attempts to view the Htaccess file.

# Start Deny attempts to view the config file.
<Files includes/config.php>
Order allow,deny
Deny from all
</Files>  
# End Deny attempts to view the config file.

# START Mime-Type
<IfModule mod_mime.c>
AddType text/css .css
AddType text/richtext .rtf .rtx
AddType image/svg+xml .svg .svgz
AddType text/plain .txt
AddType text/xsd .xsd
AddType text/xsl .xsl
AddType video/asf .asf .asx .wax .wmv .wmx
AddType video/avi .avi
AddType image/bmp .bmp
AddType application/java .class
AddType video/divx .divx
AddType application/msword .doc .docx
AddType application/x-msdownload .exe
AddType image/gif .gif
AddType application/x-gzip .gz .gzip
AddType image/x-icon .ico
AddType image/jpeg .jpg .jpeg .jpe
AddType application/vnd.ms-access .mdb
AddType audio/midi .mid .midi
AddType video/quicktime .mov .qt
AddType audio/mpeg .mp3 .m4a
AddType video/mp4 .mp4 .m4v
AddType video/mpeg .mpeg .mpg .mpe
AddType application/vnd.ms-project .mpp
AddType application/vnd.oasis.opendocument.database .odb
AddType application/vnd.oasis.opendocument.chart .odc
AddType application/vnd.oasis.opendocument.formula .odf
AddType application/vnd.oasis.opendocument.graphics .odg
AddType application/vnd.oasis.opendocument.presentation .odp
AddType application/vnd.oasis.opendocument.spreadsheet .ods
AddType application/vnd.oasis.opendocument.text .odt
AddType audio/ogg .ogg
AddType application/pdf .pdf
AddType image/png .png
AddType application/vnd.ms-powerpoint .pot .pps .ppt .pptx
AddType audio/x-realaudio .ra .ram
AddType application/x-shockwave-flash .swf
AddType application/x-tar .tar
AddType image/tiff .tif .tiff
AddType audio/wav .wav
AddType audio/wma .wma
AddType application/vnd.ms-write .wri
AddType application/vnd.ms-excel .xla .xls .xlsx .xlt .xlw
AddType application/zip .zip
</IfModule>
# END Mime-Type

# START Expires Headers
<IfModule mod_expires.c>
ExpiresActive On
ExpiresByType text/css A2628000
ExpiresByType text/richtext A3600
ExpiresByType image/svg+xml A3600
ExpiresByType text/plain A3600
ExpiresByType text/xsd A3600
ExpiresByType text/xsl A3600
ExpiresByType video/asf A2628000
ExpiresByType video/avi A2628000
ExpiresByType image/bmp A2628000
ExpiresByType application/java A2628000
ExpiresByType video/divx A2628000
ExpiresByType application/msword A2628000
ExpiresByType application/x-msdownload A2628000
ExpiresByType image/gif A2628000
ExpiresByType application/x-gzip A2628000
ExpiresByType image/x-icon A2628000
ExpiresByType image/jpeg A2628000
ExpiresByType application/vnd.ms-access A2628000
ExpiresByType audio/midi A2628000
ExpiresByType video/quicktime A2628000
ExpiresByType audio/mpeg A2628000
ExpiresByType video/mp4 A2628000
ExpiresByType video/mpeg A2628000
ExpiresByType application/javascript A2628000
ExpiresByType application/x-javascript A2628000
ExpiresByType application/vnd.ms-project A2628000
ExpiresByType application/vnd.oasis.opendocument.database A2628000
ExpiresByType application/vnd.oasis.opendocument.chart A2628000
ExpiresByType application/vnd.oasis.opendocument.formula A2628000
ExpiresByType application/vnd.oasis.opendocument.graphics A2628000
ExpiresByType application/vnd.oasis.opendocument.presentation A2628000
ExpiresByType application/vnd.oasis.opendocument.spreadsheet A2628000
ExpiresByType application/vnd.oasis.opendocument.text A2628000
ExpiresByType audio/ogg A2628000
ExpiresByType application/pdf A2628000
ExpiresByType image/png A2628000
ExpiresByType application/vnd.ms-powerpoint A2628000
ExpiresByType audio/x-realaudio A2628000
ExpiresByType application/x-shockwave-flash A2628000
ExpiresByType application/x-tar A2628000
ExpiresByType image/tiff A2628000
ExpiresByType audio/wav A2628000
ExpiresByType audio/wma A2628000
ExpiresByType application/vnd.ms-write A2628000
ExpiresByType application/vnd.ms-excel A2628000
ExpiresByType application/zip A2628000
</IfModule>
# END Expires Headers
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02-26-2018, 06:19 AM
Post: #5
RE: Why does Report state browser caching not set when waterfall clearly shows it is?
Browsers will use a heuristic to cache resources for a period if not explicitly specified. Your static resources don't have caching headers so the htaccess rules aren't working: https://www.webpagetest.org/result/18022...1_request2

The server is responding as nginx which doesn't use htaccess (that's for Apache).
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02-26-2018, 10:28 AM (This post was last modified: 02-26-2018 10:29 AM by avalanch.)
Post: #6
RE: Why does Report state browser caching not set when waterfall clearly shows it is?
Oh ok, he's using nginx. I don't know much about it but this article should help.

https://serversforhackers.com/c/nginx-caching

If not, he should follow these results.

http://bfy.tw/Gnm2
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