If Compression Seems Not to Work
If Gzip or Brotli compression does not appear to be working correctly, the issue is often related to server configuration, caching layers, CDN behavior, or response handling outside of FastMe itself. Compression can sometimes already be enabled elsewhere without appearing obvious at first glance.
Common causes include:
the host already handles compression at another layer
the file type is not covered by current rules
the response is too small to be compressed
a proxy strips or changes headers
the CDN needs to be purged
Nginx or Apache rules were added to the wrong virtual host or site block
Verify Server and CDN Configuration Carefully
Many hosting providers, reverse proxies, and CDNs automatically manage compression settings independently from WordPress optimization plugins. Because of this, FastMe may not always be the primary system controlling compression behavior on the website.
If compression headers still do not appear after testing, verify server-level configuration, CDN rules, cache state, and active response headers before assuming compression is completely disabled.
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