We optimize our WordPress websites to maximize speed. We compress images, minify CSS, and utilize caching plugins. With the introduction of HTTP/2, we ensured that CanadaCreate fully supports this advanced protocol, allowing our visitors to experience enhanced speed.
The great advantage of HTTP/2 is its ability to handle multiple requests at the same time. This allows your WordPress site to load images, CSS, and JavaScript files concurrently, resulting in a significantly smoother experience for your visitors.
Don’t miss out on major performance enhancements that can improve your search engine rankings and user experience. We will guide you through the process of enabling HTTP/2 on your WordPress site and explain why it’s one of the simplest ways to enhance your website’s performance.
What Is HTTP/2?
HTTP/2 is the updated version of the original HTTP protocol. It was developed by the Internet Engineering Task Force (IETF) and is based on the experimental SPDY protocol created by Google.
HTTP (Hypertext Transfer Protocol) serves as a communication language that enables computers to interact over the internet. It facilitates the transfer of information when you access websites or use applications.
When you access a WordPress website, your web browser sends a request to the server hosting the site. This request seeks specific information, such as the text, images, or videos on the page.
Helpful Tip: Check out our detailed article on how WordPress operates behind the scenes for more insights.
The server processes the user’s request and responds with a package of information. This package includes the text, images, and videos that you see and interact with on the website.
HTTP 0.9 was introduced in 1991. A major update, HTTP 1.1, was released in 1999 and was the standard for most websites until the launch of HTTP/2 in 2015.
HTTP/2 is supported by all modern web server software (such as Apache, Nginx, Litespeed, etc.) and web browsers. However, many websites still operate on HTTP 1.1 if they lack an SSL certificate.
The IETF is currently working on the next version, HTTP/3, which will utilize QUIC (Quick UDP Internet Connections) instead of TCP, promising significantly faster performance than HTTP/2.
What Are the Key Differences Between HTTP/2 and HTTP?
The HTTP 1.1 protocol sends data requests without prioritization, meaning that if a website includes a JavaScript file in the header, it will load before any other content.
This can make a website feel slower to users, as they may not see the content they expect right away.
The HTTP/2 protocol utilizes a binary single stream to send and receive requests with prioritization, allowing developers to specify which data should be sent first.
Additionally, HTTP/2 employs compression for HTTP headers and multiplexing, which further enhances page load speed.
This newer protocol also supports HTTP/2 Server Push, enabling developers to send data to users’ browsers without waiting for them to request it.
In summary, HTTP/2 is faster than HTTP 1.1 and greatly enhances the speed and performance of your WordPress site.
What Do You Need to Enable HTTP/2 in WordPress?
First, you need a hosting provider that offers the latest server software with HTTP/2 support. You will also need to install an SSL certificate on your WordPress site.
Most leading WordPress hosting providers already utilize advanced web server software.
We recommend Bluehost, which uses the latest Apache web server software with HTTP/2 support enabled by default.
Bluehost is currently offering an exclusive discount for CanadaCreate users, which includes a complimentary domain name and SSL certificate.
We also recommend other reliable hosting providers such as SiteGround, Hostinger, and WP Engine. These companies provide free SSL certificates and support the latest server technologies, including HTTP/2.
How to Enable HTTP/2 in WordPress
To enable HTTP/2 support in WordPress, you simply need to install an SSL certificate.
While it’s not an official requirement, major browsers like Google Chrome do not support HTTP/2 on unsecured URLs.
When your website is secured with SSL, your URLs will begin with thehttps://prefix, such as:
https://CanadaCreate.com
You will also see a padlock icon in the browser’s address bar when visiting your website.
If your website lacks an SSL certificate, you can request your WordPress hosting provider to install one for you.
Need further assistance? Check out our tutorial on transitioning from HTTP to HTTPS in WordPress.
After enabling SSL, your WordPress site will almost certainly be served using the HTTP/2 protocol.
Testing HTTP/2 Support for Your Website
You can test if your WordPress website is using HTTP/2 in two ways.
One option is to visit the KeyCDN Tools’ HTTP/2 Test page and enter your website’s URL. This free online tool will indicate whether your site supports HTTP/2.
A more effective method to verify if your website is using HTTP/2 is through the Chrome developer tools.
Open a new browser window in Google Chrome and navigate to your website. Then, open a new tab and enter thechrome://net-exportURL in the address bar.
Chrome will prompt you to save a JSON file to your computer.
After saving the file, go to the netlog viewer app and click the ‘Choose File’ button.
Select the netlog file you downloaded earlier to proceed.
The app will display the file in a readable format. Click on the HTTP/2 tab in the left column to see all the websites you visited that were using the HTTP/2 protocol, labeled as h2.
Frequently Asked Questions About HTTP/2 and WordPress
Here are some of the most common questions regarding HTTP/2 and its integration with WordPress. These answers will enhance your understanding of the technical aspects and implementation process.
1. Is there anything specific I need to do to enable HTTP/2 on my WordPress site?
No, you don’t need to install any plugins or modify any code. The only requirement is to have an SSL certificate installed on your website. Once HTTPS is enabled, your hosting provider’s server software will automatically serve your site using the HTTP/2 protocol. Most modern hosting providers, such as Bluehost, SiteGround, and WP Engine, support HTTP/2 by default.
2. Will using HTTP/2 slow down my website if I have an outdated hosting provider?
HTTP/2 will not slow down your website, but older hosting providers may not support it at all. If your hosting company uses outdated server software, your site will continue to operate on HTTP/1.1. We recommend upgrading to a modern hosting provider that supports HTTP/2, as this will greatly enhance your site’s performance and loading speed.
3. Can I use HTTP/2 without an SSL certificate?
Technically, HTTP/2 does not require SSL, but all major browsers (Chrome, Firefox, Safari, Edge) only support HTTP/2 over HTTPS connections. This means that without an SSL certificate, your visitors will not benefit from the speed enhancements of HTTP/2. Obtaining an SSL certificate is crucial for HTTP/2 to function effectively.
4. How much faster will my WordPress site be with HTTP/2?
Research indicates that websites utilizing HTTP/2 can load up to 20% faster compared to those using HTTP/1.1. The actual speed enhancement varies based on your site’s complexity and the number of files it loads. Websites with numerous images, CSS files, and JavaScript files will experience the most significant performance improvements, as HTTP/2 allows for simultaneous loading of multiple files.
5. Is HTTP/2 compatible with WordPress caching plugins?
Absolutely, HTTP/2 is fully compatible with all major WordPress caching plugins such as WP Rocket, W3 Total Cache, and WP Super Cache. In fact, combining HTTP/2 with caching plugins can lead to even greater performance benefits. The caching plugins optimize your files, while HTTP/2 ensures they are delivered more efficiently to your visitors.
6. What’s the difference between HTTP/2 and HTTP/3?
HTTP/3 is the latest version currently under development, which will utilize the QUIC protocol instead of TCP for even faster connections. However, HTTP/2 remains the current standard and offers substantial speed improvements over HTTP/1.1. Most websites should prioritize implementing HTTP/2 first, as support for HTTP/3 is still limited and not widely available.
We trust this guide has provided you with valuable insights on HTTP/2 and the steps to enable it in WordPress. For further enhancement of your website’s speed and performance, check out our comprehensive WordPress speed and performance guide, as well as our curated list of the top WordPress caching plugins.
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