does the webpage loads much faster if there are css file present
Answers
Answer:
CSS can be used many ways by a web page and still work. Since there are many ways to use it there exist many different CSS setups. No matter how it is set up on your pages your CSS should be helping your webpages render faster not slowing them down.
Explanation:
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Explanation:
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When you first set off in building a website or application, your index.html file is as performant as you will ever get.
Yes, you can set up caching, HTTP/2, and other server-side optimizations, but ultimately, you’ll be serving an index.html file to your users that starts out empty and gradually builds up over time as you ship features, fix bugs, add third-party scripts, and adjust a host of other interesting things that come over the lifetime of a project.
All this change can result in a “death by a thousand cuts” for the performance of your site. The pages start to load slower, it feels laggy, and your user engagement drops. You need to find some ways to get back to the snappy performance you once had, but how?
One of the ways you can improve the performance of your site is by inlining your CSS. This article explains the “what” and the “how” of inlining CSS by asking and answering a series of questions.
How can CSS affect performance?
Before we get into what inlining CSS means and how to do it, it’s important to first understand how CSS can affect performance. While JavaScript and images generally play a much larger role in negatively impacting performance metrics, CSS can also play a significant role.
When a browser visits a URL, the first thing it gets back from the server is the HTML file. It then begins parsing this file, stopping to request any linked dependencies that it finds along the way. It checks the document’s <head> first, looking for anything necessary before beginning into the <body> to render the page.
CSS is treated as a render-blocking resource — that is, if you include any form of <link href="style.css" rel="stylesheet"> in the document’s <head>, the browser will trigger an additional request to the server to retrieve that stylesheet before even beginning to render your page for the user.
While our internet providers, infrastructure, and servers are all getting faster every year, there is no such thing as a free lunch. Every network request to the server has a time cost, and the requests required to complete before the browser begins rendering the page are the most expensive.
In its simplest form, inlining CSS is an approach to avoiding or deferring this second (or more) network request from being required before the user can begin to visually see anything on the page.