How to interpret the Optimization Report

The Optimization Report is a very useful tool offered by ShortPixel that lets you check exactly what happened with your images.

The Optimization Report is located in your account, on the Reports section:

There you will find the usage stats for the last 30 days. You will also find there a big red "DOWNLOAD REPORT" button to download your report in CSV format.

If you are a SPIO (ShortPixel Image Optimizer) user you can find it also on the Statistics panel of your ShortPixel settings, by clicking on the link "See report (last 30 days)":

Interpreting the Optimization Report

After you have downloaded your report by one of the previous methods, you will have a CSV file with more and useful information about your compressed images.

The CSV files will have several columns:

  1. Date: the date of the optimization.
  2. URL or Path (IP): here you will see the exact URL of the optimized image. You will find several types of URLs:
    1. --> image optimized with our online optimizer.
    2. --> image optimized with ShortPixel Image Optimizer (note: instead of "", you will see your actual domain).
    3.,q_loss... --> image optimized with ShortPixel Adaptive Images.
    4.,q_loss... --> image optimized with Autoptimize.
    5. --> image optimized with our Shopify integration.
  3. Original Size: the original size of the image.
  4. Lossless Size: the size of the compressed image using the Lossless method. Pay attention that you will always see this size displayed, because ShortPixel always generates the Lossless version for technical reasons (but we only count it if you choose to use it ;-) )
  5. Glossy Size: the size of the compressed image using the Glossy method. If you didn't choose Glossy, then a N/A will be displayed instead.
  6. Lossy Size: the size of the compressed image using the Lossy method. If you didn't choose Lossy, then a N/A will be displayed instead.
  7. Percent Improvement: the percentage of improvement your image got.
  8. Details: if there is any additional information to be considered, it will be shown here.
    1. The generation of an AVIF file spends one extra credit. Therefore, if you chose to create AVIF versions of your images, you will see two rows (= two credits) for the same image; one of the rows will have "AVIF conversion and optimization" in the Details column.

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