Can someone advice me what is the best extension to use in sites that are image rich.
I have a feeling that the performance of the site may go down, as the products expand.
Right now I am using JPEG. Is there anything else I can use or do, to keep my site light.
Thanks in advance.
You mean IMAGE FORMAT, not "extension".
JPEG is the appropriate format for a web site showcasing jewelry products.
You can only use whatever file "extension" is appropriate for each image file format. For the JPEG format you can only use the ".jpg" extension, which of course Photoshop will apend to the file name when you save the JPEG file.
Or PNG. I like being able to use transparent backgrounds with web images and graphics. PNG does this. Jewellery works well with a plain background.