Notion 28
Why page speed matters.
Target skills
In this section, we will discuss the concept of web performance optimization.
Web performance is defined as the speed at which a web page downloads and displays in the user's browser. In other words, web page optimization is about improving the download speed of the website so that it delivers content to users as quickly as possible. Along with efficiency and renewable energy, web performance is one of the key factors that influence the sustainability score of your website.
A website consists of a varying number of web pages. These are composed of documents in HTML (Hypertext Markup Language) or XHTML (Extensible Hypertext Markup Language) format. Internet users access a web page by entering its URL address in the address bar of a web browser (Mozilla, Firefox, Chrome, etc.) or by clicking on a hypertext link in another document.
The slow downloading of a web page can have various consequences on:
- the ranking of the website in search engines,
- the website traffic and
- the user experience (dissatisfaction)
When an Internet user launches a search in a web browser, the user is overwhelmed with information. Different sites are proposed in response to his request. It is therefore important to take into account the download time of your web page.
The loading time of a web page is the time required for all the elements of the latter to be displayed during your search via a search monitor.
The performance of a web site depends on a number of factors such as
those related to the physical server.
The physical server is a device, similar to a computer without a screen, on which the website is hosted. It is important that it has sufficient bandwidth and network port speed to allow optimal download times when sending web pages.
Web server aspects.
The web server enables the processing of the request and delivery of web page content to end users over the internet.
Key figures
- "Google's benchmark for page speed is about 2-3 seconds."
- "53% of visitors will abandon your website if it takes longer than 3 seconds to download."
- "Amazon found that every 100ms increase in load time results in a 1% decrease in revenue."