In the upload method you can choose to upload only the changed files since the last upload. But this doesn't work ! 
Автор: Donaat V.
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Every time I upload to the internet, it uploads many many files, maybe all files from my website, instead of uploading only the ones I have changed since the last upload.
http://www.vlaamseclubpattaya.com/
There is no error displayed, but it takes always a lot of time to upload all this files instead of e.g. one.
Thanks
Donaat
Размещено
This can depend on what you change.
If you change a menu, then more pages can be uploaded. If you make changes to header. footer or so, then most pages will be uploaded.
If longer time has gone since last uploading, then all will be uploaded.
If you have just uploaded the site and then afterwards make changes to text on a page, then only this one page should be uploaded.
You can test this by successively uploading multiple times without changing anything.
Then only about 3 files are uploaded! (test with latest version 2019.2)
JJ.