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When your browser requests a web page from a server, the server responds with a set of HTTP headers followed by the contents of the page. You can use the form below to see what these are.
Note about the Last-Modified header:
A common header returned is "Last-Modified", which can tell you when the page was last updated. The server isn't required to return it, but if it does it can sometimes be useful. Also, some servers just respond with the current date and time, so it's not reliable at all. But it can be handy to know, especially if you find out that a page hasn't been updated for years.
URL to get headers for:
headers to display: HTTP version:
HTTP headers returned by s3.amazonaws.com:
HTTP/1.1 200 OK
x-amz-id-2: 4SiMTq6fNmK+ULF8AcalCgSOuu7/ERRJAGzuK0wDfSl2fe4vCrmWmPFXTNv2kLM8epKNcN4PbYc=
x-amz-request-id: E2016CC280719ED7
Date: Fri, 10 Jul 2020 14:21:19 GMT
Last-Modified: Tue, 19 Mar 2019 14:19:17 GMT
ETag: "858adede073636e558df1739fc6c7b66"
x-amz-meta-ctime: 1553005156
x-amz-meta-mode: 33188
x-amz-meta-gid: 0
x-amz-meta-uid: 0
x-amz-meta-mtime: 1553005156
Accept-Ranges: bytes
Content-Type: text/html
Content-Length: 6594
Server: AmazonS3
Connection: close