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Minify large js file3/18/2024 ![]() Loading the visible content before the other elements of a page creates a much better user experience. The bigger the page, the more network round-trips are required to fetch and to render the above-the-fold content of the page. However, many web pages are fairly large and no user wants to wait for an entire page to load before they see any visible content. Often this is the title and/or navigation menu. Visible content-also referred to as, above the fold (a newspaper term)-is the part of the screen that the user sees first, before they do any scrolling. ![]() Prioritize Visible Content Issue: Users don’t need the entire page to load to start looking at the above the fold content. Once you have your site and pages ready, run it against these two sites, which will help you assess the performance of your CSS sheets: This decreases speed of rendering as it waits for downloading files. This causes the CSS file to load slower than the link method as they can only be downloaded one at a time using this method. However, the problem arises when there are several of these files.ĭo not use to call your CSS files - The call is when external CSS files are called using the command rather than linking to it directly. The advantage of this is that the CSS file is being cached by the browser. If you have more than one CSS file, they should be combined into one file – If using multiple external CSS files, consolidate them into a single file to improve the download time by decreasing the round trip fetching files.Įxternal CSS files – The use of external CSS files is the main way that CSS is being used in web pages, with the CSS instructions in a separate file other than your HTML. Additional guidance can be found the W3C 2016 Content Policy Level 2 Recommendation, or the W3C 2018 Content Security Policy Level 3 Working Draft. Additionally, including styles in our code is against the Content Security Policy of the World Wide Web Consortium (W3C) that will block any element levels styles by default. We should avoid using inline CSS on repeated HTML elements below the fold where possible (such as the paragraph tag ) because this often leads to code duplication. Traditionally, we have included inline CSS styles in HTML elements, but this may cause browsers to respond slower. # Disable for IE where possible because this often leads to code duplication. Text/xml application/xml application/xml+rss text/javascript Gzip_types text/plain text/html text/css application/x-javascript NGINX Server - Enable compression by adding the following code to your config file: Below is an example:ĪddOutputFilterByType DEFLATE application/xmlĪddOutputFilterByType DEFLATE application/xhtml+xmlĪddOutputFilterByType DEFLATE application/rss+xmlĪddOutputFilterByType DEFLATE application/javascriptĪddOutputFilterByType DEFLATE application/x-javascript Mod_gzip_item_exclude rspheader ^Content-Encoding.*gzip.*Īpache Server - Enable the zip parameters in the. Mod_gzip_item_include mime ^application/x-javascript.* Mod_gzip_item_include handler ^cgi-script$ htaccess - Enable the zip parameters in the. The following four examples, outlined in a blog post on, are ways to enable gzip on some of the most common servers. Your web server has gzip compression enabled (but may be configured differently depending on the specific server). Solution: Use gzip on compressible resources! A good standard practice is to use gzip since all modern browsers support gzip compression for HTTP requests. This will significantly reduce the time it takes to download the resource, and improve the time to first render the page. The following are 5 solutions to make your page content lighter:Įnable Compression Issue: Large page files, which result in poor rendering performanceĮnabling file compression typically saves around 50 to 70 percent of the file size, and may reduce the size of page resources by up to 90 percent. ![]() ![]() If we can reduce the size of what is being sent over the network, the page will load faster. Mobile devices are getting faster with every new release, however they still rely on the mobile network to get the information to the device and we have all been in locations where we have little to no bars of connectivity. The incorrect sizing and placement of objects on a site may lead to longer page load times and mobile unfriendliness. This week we will talk about making page resources smaller to improve the rendering of the page.
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