File pagespeed.conf of Package nginx

pagespeed off;

# Configuring PageSpeed Filters
pagespeed RewriteLevel PassThrough;

# Needs to exist and be writable by nginx.  Use tmpfs for best performance.
pagespeed MemcachedServers "127.0.0.1:11211";
pagespeed FileCachePath /var/ngx_pagespeed_cache;

# PageSpeed Admin
pagespeed StatisticsPath /ngx_pagespeed_statistics;
pagespeed GlobalStatisticsPath /ngx_pagespeed_global_statistics;
pagespeed MessagesPath /ngx_pagespeed_message;
pagespeed ConsolePath /pagespeed_console;
pagespeed AdminPath /pagespeed_admin;
pagespeed GlobalAdminPath /pagespeed_global_admin;

# PageSpeed Cache Purge
pagespeed EnableCachePurge on;
pagespeed PurgeMethod PURGE;

# Ensure requests for pagespeed optimized resources go to the pagespeed handler
# and no extraneous headers get set.
location ~ "\.pagespeed\.([a-z]\.)?[a-z]{2}\.[^.]{10}\.[^.]+" {
  add_header "" "";
}

# HTTPS Support
# pagespeed FetchHttps enable;

# PageSpeed Filters
# CSS Minification
# pagespeed EnableFilters combine_css,rewrite_css;

# JS Minification
# pagespeed EnableFilters combine_javascript,rewrite_javascript;

# Images Optimization
#pagespeed EnableFilters lazyload_images;
#pagespeed EnableFilters rewrite_images;
#pagespeed EnableFilters convert_jpeg_to_progressive,convert_png_to_jpeg,convert_jpeg_to_webp,convert_to_webp_lossless;

# Remove comments from HTML 
#pagespeed EnableFilters remove_comments; 
# Remove WHITESPACE from HTML 
#pagespeed EnableFilters collapse_whitespace;

# CDN Support
#pagespeed MapRewriteDomain cdn.example.com www.example.com;