Compressing the following resources with gzip could reduce its transfer size.

The following cacheable resources have a short freshness lifetime. Specify an expiration at least one week in the future for the following resources:

Minifying the following external resources could reduce its size.

Optimizing the following images could reduce their size by $1 ($2 reduction).

Resources with a "?" in the URL are not cached by some proxy caching servers. Remove the query string and encode the parameters into the URL for the following resources:

The following resources are missing a cache validator. Resources that do not specify a cache validator cannot be refreshed efficiently. Specify a Last-Modified or ETag header to enable cache validation for the following resources:

The following publicly cacheable, compressible resources should have a "Vary: Accept-Encoding" header: