https://www.3b1.ie

You could reduce your image weight by around: 1,513 KB (78%)

Analysis date: September 2, 2025

Estimated Page Load Savings

Image performance can have a big impact on how long it takes for a page to completely load. Get an idea of the potential time savings by switching between common internet speeds. The result is based on the estimated size savings seen above.

Download speed baselines are borrowed from Google Chrome's DevTools. Actual download time may vary.

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On a connection, you could save approximately seconds of total page load time.

Image Breakdown

Below is a breakdown of how much individual image sizes could be reduced by optimizing them. This analysis was run by loading the page on a simulated mobile device. The page was then scrolled all the way to the bottom, so that lazily-loaded images had a chance to play too. Every image loaded throughout that process was then run through a series of optimizations, after which the numbers were crunched.

For questions about this analysis, send me a message!

Original Size
Optimized Size
Savings
https://3b1.ie/hubfs/griffith%20college.jpg
113 KB
77 KB
31%
https://3b1.ie/hubfs/keans%202.jpg
417 KB
59 KB
86%
https://3b1.ie/hubfs/dynorod.jpg
91 KB
64 KB
29%
https://3b1.ie/hubfs/foleys%20plumbing%201.jpg
40 KB
28 KB
30%
https://3b1.ie/hubfs/beamish%202%20(1).jpg
429 KB
150 KB
65%
https://3b1.ie/hs-fs/hubfs/3B1%20logo.jpg?width=100&height=100&name=3B1%20logo.jpg
616 bytes
493 bytes
20%
https://3b1.ie/hubfs/web%20image.jpg
842 KB
41 KB
95%