Compression of images before upload to Squarespace 7.1

Hello!

I know it is "best practice" to always upload compressed images to web reduce load-time etc.

But I wonder if Squarespace anyway will compress the uploaded files, so there will be no need to do it beforehand?

I'm adding a link to a page where I have made an image gallery (slide-show), built in Squarespace 7.1, Fluid Engine:

https://www.hoyden.no/universitetsgata-7

(The images in this slideshow is not compressed before uploading)

Erlend

54 minutes ago, Erlend-fs said:

I know it is "best practice" to always upload compressed images to web reduce load-time etc.

But I wonder if Squarespace anyway will compress the uploaded files, so there will be no need to do it beforehand?

Squarespace recommend that you save the images at a high "quality" setting (95+ in most image tools) and then upload them without additional compression. 

To quote what I said in another thread, when you upload an image to Squarespace, the platform does some resizing which necessitates re-encoding and re-compressing. If you compress an image before uploading it, the mandatory re-compressing will usually result in a larger file size because the algorithm won't know the difference between "actual image content" and "artifacts of the previous compression run".

I hope this helps.

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On that note, could this explain why when you try to upload more pictures in a gallery, it takes time not only to display the pictures in edit mode but the upload is taking forever?

I have this problem on this page of my website:

https://www.filmmining101.com/hall-of-fame/most-beautiful-movie-shots-of-all-time

Checked out your gallery, and it looks fantastic! About the image compression, it's a common concern. Squarespace does apply some compression, but it's a good idea to compress before uploading for optimal performance. JPEG Optimizer is a solid tool for that. Personally, I think a little compress image beforehand helps maintain a good balance between quality and load time. It's like finding that sweet spot! Your slideshow is super smooth though, kudos! If you ever want to share tips or experiences, I'm all ears.