flutetoot.com March 31, 2026
Your site's load speed has a direct and measurable impact on user experience, engagement, and conversion rates. Being the largest asset you'll typically find a page, images are often a prime target for optimization.
Below is a breakdown of how much individual images could be reduced by using PicPerf. This analysis was run by loading the page on a simulated mobile device. Every image was then run through a series of optimizations to estimate potential savings.
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Original Size
Optimized Size
Savings
77 KB
11 KB
85%
https://substackcdn.com/image/fetch/$s_!VyZ4!,w_170,c_limit,f_auto,q_auto:best,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc3d08fa2-d94b-47d8-9a76-e80908ec70cc_1080x1080.png
379 KB
167 KB
56%
https://substackcdn.com/image/fetch/$s_!R0u0!,w_200,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack.com%2Fimg%2Fsubstack_wordmark.black.png
4 KB
2 KB
45%
7 KB
6 KB
15%
16 KB
14 KB
15%
3 KB
3 KB
15%
4 KB
3 KB
15%