Keep-Alive for 120 secs
Download List of All Websites using Keep-Alive for 120 secs
The Keep-Alive general header allows the sender to hint about how the connection may be used to set a timeout and a maximum amount of requests.
Pragma Header - backwards compatibility with HTTP/1.0
Download List of All Websites using Pragma Header - backwards compatibility with HTTP/1.0
The Pragma HTTP/1.0 general header is an implementation-specific header that may have various effects along the request-response chain. It is used for backwards compatibility with HTTP/1.0 caches where the Cache-Control HTTP/1.1 header is not yet present.
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Vary Header Accept-Encoding
Download List of All Websites using Vary Header Accept-Encoding
The Accept-Encoding request HTTP header advertises which content encoding, usually a compression algorithm, the client is able to understand. Using content negotiation, the server selects one of the proposals, uses it and informs the client of its choice with the Content-Encoding response header.
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No Cache Content
Download List of All Websites using No Cache Content
Forces caches to submit the request to the origin server for validation before releasing a cached copy.
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