On the statistics tab on your account page you can find useful graphs to help see how ImageEngine is working on your site. These graphs are provided to you to help you keep track of your ImageEngine usage and keep an eye on any anomalies that can affect the performance of ImageEngine or your site.

All graphs can be seen within a time frame of the last 24 hours or the last 7 days using the time frame buttons above each graph.


Located above each graph is also a “Refresh” button as well as a “Printable Version” button to produce a savable image of the graph.


After selecting which Delivery Address you would like to see statistics for, you will see the following graphs:

# Cache Hit Ratio


This graph shows the percentage of images being served from ImageEngine servers (cache hit) versus the amount being served from the Origin servers.

A high amount of cache misses can mean many things from low traffic in a region to new images being updated on the website. One option to consider if you wish to increase your cache hit ratio is to increase the time to live (TTL) of images.

# Image Payload Reduction


This graph shows how much data ImageEngine has reduced in the payload of images compared to serving the original images. This is a useful way to see how efficiently ImageEngine is serving compressed images.

# Bandwidth Saved


This is a timeline that shows the amount of bandwidth used by ImageEngine compared to the bandwidth that would have been used by the original Images.

# Savings by Output Image Format


This is a bar chart that shows the top 5 Image Formats by payload size and shows how much data savings ImageEngine is providing for each format (these are the served formats of images). This is a good way to see how ImageEngine optimizes different type of formats.

# Top 100 Requests


This is a list of the top 100 files being requested on this Delivery Address as well as the number of requests. Use this to see which images are being viewed the most of your website.

# Requests


This is a timeline of the number of requests being made to this Delivery Address. You can use this graph in conjunction with other graphs to see if any strange numbers can be explained by a spike or fall in traffic.

This is a series of graphs created using traffic from this Delivery Address and Scientiamobile’s WURFL API. These sets of graphs are a great way to understand the type of traffic your website gets.

Top 10 OS

The top operating systems and versions that are visiting your site. These operating systems are from both mobile and desktop devices.

Top Form Factors

You can use this graph to see what type of devices users are visiting your website on. In general, the more mobile device (smartphone and tablet) traffic your site gets, the more savings you will see with ImageEngine.

Top 10 Smartphones

A pie chart of the top 10 Smartphones that get traffic on this site.

Note: all iPhone Models are lumped into the same category since Apple obfuscates their model names.

# Top 10 End User Locations


A map of the top countries where users are accessing your site. This can help to inform you of where most of your users are from and which ImageEngine PoP they are likely hitting.

# Top Missed Items


This is a list of files that are missing ImageEngine’s cache and being retrieved from your origin server, in descending order by count.

This graph usually shows some of the less popular files being retrieved on your site, as those are the ones that would need to be retrieved from origin the most. You can increase the amount of time these images stay in our cache by increasing your TTL in your settings.