Web Performance and the Impact of SPDY, HTTP/2 & QUIC - Part 1
May 18, 2016

Jean Tunis
RootPerformance

Share this

As websites continue to advance, the underlying protocols that they run on top of must change in order to meet the demands of user expected page load times. This blog is the first in a 5-part series on APMdigest where I will discuss web application performance and how new protocols like SPDY, HTTP/2, and QUIC will hopefully improve it so we can have happy website users.

Start with Web Performance 101: The Bandwidth Myth

Start with Web Performance 101: 4 Recommendations to Improve Web Performance

So How Are We Doing?

In my last blog, I talked about all the different recommendations I've provided or come across over the years.

How are we doing with that? Are website owners out there listening?

Well, I decided to take a look at the archive — HTTP Archive, that is.

With HTTP Archive, I can look at some worldwide statistics on thousands of websites it monitors.

Let's look at bytes being sent to the browser.


As we can see, the average total byte size of a web page is a little over 2.3MB. And look at the biggest percentage in type of files: images account for about 63% of worldwide page sizes. Those file sizes can be reduced or minimized.

Okay. So maybe that was an outlier. In Performance Engineering, we never want to focus too much on averages. Percentiles and trends are things that give us better insight into whether something should be a concern or not.

So let's look at the trend in the past year.


We see that the trend of transfer sizes has been going up in the past year. Websites across the world have increased in size by about 18%. At this rate, if it continues, in 5 years, websites will increase in size by almost 300%! That's crazy!

While I think this is unlikely to happen with the increased importance placed on web performance, it's unbelievable to think we're increasing at this rate.

In my last blog, I mentioned how important it is to reduce latency. One of the ways to do that is to implement a content delivery network.

So let's see how that's going across the world.


We can see that only about 14% of websites have implemented a Content Delivery Network (CDN). With free CDNs out there, everyone should be using a CDN.

It's also encouraging that we're trending upward on that one.

Now that we get a sense of how websites are doing with HTTP requests across the globe, I want to look at the the protocol itself. If website operators are only slowly making some improvements, what can be done with the protocol itself to help?

Read Web Performance and the Impact of SPDY, HTTP/2 & QUIC - Part 2, covering the limitations of HTTP/1.0 and HTTP/1.1.

Jean Tunis is Principal Consultant and Founder of RootPerformance
Share this

The Latest

March 18, 2024

Gartner has highlighted the top trends that will impact technology providers in 2024: Generative AI (GenAI) is dominating the technical and product agenda of nearly every tech provider ...

March 15, 2024

In MEAN TIME TO INSIGHT Episode 4 - Part 1, Shamus McGillicuddy, VP of Research, Network Infrastructure and Operations, at Enterprise Management Associates (EMA) discusses artificial intelligence and network management ...

March 14, 2024

The integration and maintenance of AI-enabled Software as a Service (SaaS) applications have emerged as pivotal points in enterprise AI implementation strategies, offering both significant challenges and promising benefits. Despite the enthusiasm surrounding AI's potential impact, the reality of its implementation presents hurdles. Currently, over 90% of enterprises are grappling with limitations in integrating AI into their tech stack ...

March 13, 2024

In the intricate landscape of IT infrastructure, one critical component often relegated to the back burner is Active Directory (AD) forest recovery — an oversight with costly consequences ...

March 12, 2024

eBPF is a technology that allows users to run custom programs inside the Linux kernel, which changes the behavior of the kernel and makes execution up to 10x faster(link is external) and more efficient for key parts of what makes our computing lives work. That includes observability, networking and security ...

March 11, 2024

Data mesh, an increasingly important decentralized approach to data architecture and organizational design, focuses on treating data as a product, emphasizing domain-oriented data ownership, self-service tools and federated governance. The 2024 State of the Data Lakehouse report from Dremio presents evidence of the growing adoption of data mesh architectures in enterprises ... The report highlights that the drive towards data mesh is increasingly becoming a business strategy to enhance agility and speed in problem-solving and innovation ...

March 07, 2024
In this digital era, consumers prefer a seamless user experience, and here, the significance of performance testing cannot be overstated. Application performance testing is essential in ensuring that your software products, websites, or other related systems operate seamlessly under varying conditions. However, the cost of poor performance extends beyond technical glitches and slow load times; it can directly affect customer satisfaction and brand reputation. Understand the tangible and intangible consequences of poor application performance and how it can affect your business ...
March 06, 2024

Too much traffic can crash a website ... That stampede of traffic is even more horrifying when it's part of a malicious denial of service attack ... These attacks are becoming more common, more sophisticated and increasingly tied to ransomware-style demands. So it's no wonder that the threat of DDoS remains one of the many things that keep IT and marketing leaders up at night ...

March 05, 2024

Today, applications serve as the backbone of businesses, and therefore, ensuring optimal performance has never been more critical. This is where application performance monitoring (APM) emerges as an indispensable tool, empowering organizations to safeguard their applications proactively, match user expectations, and drive growth. But APM is not without its challenges. Choosing to implement APM is a path that's not easily realized, even if it offers great benefits. This blog deals with the potential hurdles that may manifest when you actualize your APM strategy in your IT application environment ...

March 04, 2024

This year's Super Bowl drew in viewership of nearly 124 million viewers and made history as the most-watched live broadcast event since the 1969 moon landing. To support this spike in viewership, streaming companies like YouTube TV, Hulu and Paramount+ began preparing their IT infrastructure months in advance to ensure an exceptional viewer experience without outages or major interruptions. New Relic conducted a survey to understand the importance of a seamless viewing experience and the impact of outages during major streaming events such as the Super Bowl ...