Rule 13: Configure ETags13(Chapter 13 of High performance Web Sites)
2009-12-14 20:47
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Entity tags (ETags) are a mechanism that web servers and browsers use to validate
cached components.Before jumping into the details of ETags, let’s review how components
are cached and validated.
An ETag is a string that uniquely identifies a specific version of
a component.The only format constraint is that the string must be quoted.The origin
server specifies the component’s ETag using the ETag response header.
Reconfigure or remove ETags.
cached components.Before jumping into the details of ETags, let’s review how components
are cached and validated.
An ETag is a string that uniquely identifies a specific version of
a component.The only format constraint is that the string must be quoted.The origin
server specifies the component’s ETag using the ETag response header.
Reconfigure or remove ETags.
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