Cloudinary Blog

Introducing Website Speed Test: An Image Analysis Tool Integrated with WebPagetest

Introducing Website Speed Test: An Image Analysis Tool Integrated with WebPagetest

Because images dominate page weight, methodical image optimization can have a significant effect on conversions and user experience. And the performance tools you choose to use can have a powerful impact on how websites are built and maintained. One such popular open source tool is WebPagetest. It is designed to measure and analyze webpage performance, which is why Cloudinary chose to partner with our friends over there to launch Website Speed Test.

Website Speed Test is an image analysis tool that provides detailed optimization insights beyond a simple compression check. The tool leverages Cloudinary’s advanced algorithms to demonstrate how changes to image size, format, quality and encoding parameters can result in significant reductions in file size while maintaining perceived quality. In short, Website Speed Test shows the why and how of image optimization.

Improved Image Analysis Using WebPagetest

Linked from a new Image Analysis tab, Cloudinary powers WebPagetest with robust image analysis capabilities, enabling you to receive valuable data and guidance on how to manage images and deliver an optimal user experience.

Integration_with_WebPagetest

How Website Speed Test Works

Advanced algorithms take into account many factors when examining images, including the exact content of an image and the need for responsive design. The resulting insights enable you to ensure that images are encoded correctly, optimized for performance and look their best regardless of bandwidth, viewing browser, device or viewport.

At the top of the page, the report shows the total weight of images, potential compression and ‘Page Image Score’: a grade ranging from A-F. This grade is based on the image format used, fit between image resolution and the displayed size in the graphic design, and compression rate of all the images that were analyzed.

Image_Analysis_Result

The overview is followed by a detailed analysis of each image, with performance insights and recommendations for improvement.

Detailed_Insights

Left Tab – Current Image

Presents the current version of the image being analyzed along with its image score.

Middle Tab – Optimized Image

Presents an optimized version of the image, using the same format as the original image, with the following adjustments:

  • Correctly-sized images - scales the image down to the actual required dimensions on the web page.
  • Intelligent content-aware encoding - analyzes the image to find the best quality compression level and optimal encoding settings, based on the content and viewing browser, producing a perceptually fine image while minimizing the file size.

Learn more about these manipulations

Right Tab - Format Alternatives

This tab shows how optimization works for different image formats and the impact on image weight.

Optimizing Images is No Easy Task

The Website Speed Test tool provides insights on the why and how of optimization. While you may be able to optimize an image or two manually, the process becomes exponentially more complicated when you need to scale up, managing hundreds, thousands, or even millions of images delivered to a website.

For the best user experience, each image should be enhanced and optimized to meet the viewing context. This entails automatically adapting the image to fit the layout of the page and selecting the optimal quality and encoding settings.

Accomplishing this type of optimization is no ordinary feat. Optimizing images for different browsers, devices and bandwidth requires considerable knowledge of the intricacies of image formats, encoding parameters and visual quality metrics. For example, it makes sense that a smaller image file size will result in faster load time, less bandwidth usage and a better user experience. However, reduce the file size too much, and image quality could suffer and impair user satisfaction. This is where Cloudinary’s automatic optimization comes in play.

You can create your free account here. We would of course appreciate any feedback you have!

Recent Blog Posts

How to Make Boomerang Video Effect With Cloudinary

When you see the term boomerang, what is the first thing that comes to mind?

A thrown tool made of wood that returns to its thrower? Another definition is reversal, logically portraying the aim of the tool itself. Based on this definition, the term boomerang videos” came into play to depict videos that loop back and forth.

Read more
Shortening the Development Cycle of Media-Related apps with Cloudinary

Currently, the Android platform boasts the highest demand for mobile solutions, as evidenced by Google’s announcement in 2017 that there were two billion monthly active Android devices, a number that is likely to increase in the years ahead. For app developers like you, now is the right time to build and release solutions for Android. you might have also noticed that a higher percentage of apps being developed nowadays are filled with visual media: images and videos.

Read more
Build Your Own Image Storyboard Android App

Globally, approximately two billion people now own smartphones, which also feature cameras capable of capturing photos and videos of a tonal richness and quality unimaginable even five years ago. Until recently, those cameras behaved mostly as optical sensors, catching light that determines the resulting image's pixels. The next generation of cameras, however, can blend hardware and computer-vision algorithms that apply to an image's semantic content, spawning creative mobile photo and video apps.

Read more
Cloudinary Delivers Simplified Image Management Workflow for Fairfax Media's Digital Transformation

Fairfax Media Limited [ASX:FXJ] is one of the largest media companies in Australia and New Zealand that engages audiences and communities via print and digital media. It includes recognizable mastheads including The Australian Financial Review, The Sydney Morning Herald and The Age. Fairfax Media operates numerous news and information websites, as well as tablet and smartphone apps, for online news sites.

Read more
Bleacher Report Scores with Real-Time Video Highlights Delivered by Cloudinary

Bleacher Report is a global digital destination for sports fans, creating and collaborating on content at the intersection of sports and culture. Owned by Turner, a division of Time Warner, Bleacher Report's website and social channels focus on sports culture for the next generation of fans. Bleacher Report also has a five-star mobile app and popular email newsletters, which are part of the company’s strategy for instantly delivering in-depth articles, results and video highlights personalized for users’ favorite teams, players and leagues.

Read more