# Env Call Analyzer
|Category||Severity||Time To Fix|
|🚀 Performance||Major||10 minutes|
This analyzer ensures that your application code does not have calls to the
env function outside of your
config files. This is a major roadblock to configuration caching.
If you cache your configuration, all calls to the
env function would return null. This means that your code will break with configuration caching.
It is recommended to only use the
env function within your
config files and nowhere else.