etag – Page 2 – Tarik Billa

How do I remove eTag headers from IIS7?

January 31, 2023 by Tarik

Under IIS7 the Etag change number (the part of the Etag following : ) is always set to 0. Hence the Etag from the server no longer varies from server to server for the same file and therefore the Yahoo best practice no longer really applies. Since you can’t actually suppress the ETag header on … Read more

ETag vs Header Expires

September 24, 2022 by Tarik

They are slightly different – the ETag does not have any information that the client can use to determine whether or not to make a request for that file again in the future. If ETag is all it has, it will always have to make a request. However, when the server reads the ETag from … Read more