josefzacek.com
February 14, 2026

You could reduce your image size by 70% (229 KB), saving seconds of total load time.

Based on < internet speed. Download speed baselines from Chrome DevTools. Actual time may vary.
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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
https://josefzacek.com/assets/images/google-reviews/GLAS-CON.png
11 KB
2 KB
83%
https://josefzacek.com/assets/images/home/Animated-banner.webp
129 KB
22 KB
83%
https://josefzacek.com/assets/images/google-reviews/Paul-Burke.png
13 KB
2 KB
81%
https://josefzacek.com/assets/images/home/home-page-video-poster.webp
82 KB
16 KB
80%
https://josefzacek.com/assets/images/google-reviews/Sarah-Fleming.png
7 KB
1 KB
80%
https://josefzacek.com/assets/images/google-reviews/Patrick-Ryder.png
10 KB
2 KB
79%
https://josefzacek.com/assets/images/google-reviews/John-Rogers.png
7 KB
2 KB
70%
https://cdnjs.cloudflare.com/ajax/libs/slick-carousel/1.9.0/ajax-loader.gif
4 KB
2 KB
47%
https://josefzacek.com/assets/images/home/Google-reviews-banner.avif
33 KB
22 KB
35%
https://josefzacek.com/assets/images/josef-zacek-logo.svg
32 KB
27 KB
16%