- Decrease the amount of data to download.
- Improve page display speed.
- Decrease the energy impact related to the consultation of the site.
For image preview vignettes, use specific versions of them and not original images resized using their HTML attributes or CSS properties.
- Check that they do not have CSS
widthproperties which modify the apparent size of the images in relation to their actual dimensions.To do this, use "deactivate all CSS styles" using a web development tool to find images whose dimensions change after deactivating CSS styles.
- Also check that the dimensions indicated in the
heightattributes of the generated HTML code correspond to the actual dimensions of the image using a development tool.
For example, the following will be invalidated:
- An image of the type <img height="300" width="600" class="thumb"/> if the
.thumbclass imposes the CSS properties
- An image of the type <img height="100" width="200"/> if the actual dimensions of the image are 300px high and 600px wide.
Business application and benefits
The rules should be applied to your projects from the design phase through to post-implementation , and they should be understood by all professionals with web and customer experience (CX) responsibilities: from strategy to operations, marketers to project managers, and editorial to technical staff. The benefits of using this ruleset are numerous, including improving customer satisfaction, web performance, and e-commerce, and expanding your client base, while also decreasing your errors and costs.
The objective of these rules and the Opquast community mission is ‘making the web better’ for your customers and for everyone! Opquast rules cover the key major areas of risk that can negatively affect website users such as privacy, ecodesign, accessibility and security.