webperf - KeyCDN

Why is Wordpress Slow?

It is challenging to figure out why WordPress is slow. A WordPress website comprises many parts, including web servers and their settings, different plugins, and themes. Unoptimized content could also be one of the reasons why your WordPress website is not performing as per your expectations. But what steps could we take to determine the cause of the problem? Unfortunately, it is a bit difficult to point out the problem directly– there are many possibilities that we will explore in this article.

December 8, 2022 Read more

A Slow Website - Time to First Byte (TTFB)

There are many reasons why your website may be slow. Time to first byte (TTFB), respectively time to last byte (TTLB), for the initial HTML document is one explanation we want to focus on in this post. In most cases, we talk about how to optimize our frontend, such as minimizing CSS or compressing images. This is an essential aspect of having a fast loading website, but there are good reasons to optimize the backend.

February 25, 2022 Read more

WordPress Cache Enabler Plugin Updates

In October 2015 KeyCDN released a free WordPress caching plugin called Cache Enabler. We did this because we wanted to give back to the WordPress community in the offering of a caching solution that was not complicated and most importantly, free. This plugin was initially released as a lightweight caching plugin that was able to speed up WordPress websites by generating static HTML files that could then be minified and even converted for WebP support.

November 19, 2020 Read more

AV1 Image File Format (AVIF)

The major application for high quality compression of photos is Internet speed. While bandwidth does continue to increase each year, so does the quality and size of most Internet media. What that means is that even though data can be transferred more quickly, the need for compressing media into smaller files without losing visual quality has not gone away. In fact, the need for an effective compressing tool may have even grown.

October 17, 2019 Read more

QUIC - Faster Content Delivery on Layer 4

After HTTP/2, the next come up is QUIC, a new transport network protocol. At the beginning this protocol was designed by Jim Roskind at Google. It was publicly released in 2013 after the implementation and experimentation in 2012. Originally being an acronym for Quick UDP Internet Connections, the Internet Engineering Task Force (IETF) has stated it's the name of the protocol and not an acronym. Google has been working for quite some time to speed up network protocols in order to optimize network response times.

October 3, 2019 Read more

Optimize Images for Web

When it comes to marketing your website, there are lots of different aspects to consider. These include, but aren’t limited to, speed, Search Engine Optimization (SEO), conversation rates, bounce rates, and others. Though we usually write about how to optimize performance, today, we’re diving into alternate image optimization techniques for the web. SEO and social media play an important role in helping your website’s performance and conversions skyrocket. Let’s jump into the top three image optimization domains for the web.

September 12, 2019 Read more

Google PageSpeed Insights - Scoring 100/100 with WordPress

Running speed tests with tools like Google PageSpeed Insights, WebPageTest, or KeyCDN's Website Speed Test is always a good way to help gauge your website's performance. Look how we effortlessly achieved a score of 100/100 using WordPress and Google PageSpeed Insights. But also learn why simply achieving this score should not be overstated. Many website developers and owners seem obsessed with achieving a 100/100 score on Google PageSpeed Insights and overlook the most important thing: Google PageSpeed Insights recommendations.

August 29, 2019 Read more

Performance Testing - Tools, Steps, and Best Practices

Web performance is a broad subject, and you'll find no shortage of performance testing tips and tutorials all over the web. Before you begin tuning your website or application, you must first figure out which metrics matter most to your users and establish some achievable benchmarks. What is performance testing? In the context of web development, performance testing entails using software tools to simulate how an application runs under specific circumstances.

August 15, 2019 Read more

Responsive Images - Serve Scaled Images

Responsive image techniques, such as the srcset, sizes, and media HTML attributes, allow different scaled images to be delivered based on the size and resolution of the accessing device. This allows you to further optimize your image delivery to improve the overall performance of your website or application. Instead of taking a single image and only making it responsive with CSS, which is then delivered to all devices, you can deliver completely different images based on the requesting device.

August 8, 2019 Read more

6 Proven Ways to Improve Your Ecommerce Conversion Rate

The world of ecommerce continues to grow year by year. As consumers want to purchase items from the comfort of their own home and have them delivered in a timely manner, the opportunities in ecommerce are ever-expanding. However, in 2019, the expectation for a good user experience is now higher than ever. Customer want to know they can trust the website they are buying from, they want to access the website fast, and they want a great offer.

June 20, 2019 Read more

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