Web Performance 101: 4 Recommendations to Improve Web Performance
Web Performance and the impact of SPDY, HTTP/2 and QUIC
April 22, 2016

Jean Tunis

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 second in a 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

Here are some common recommendations to optimize the steps of a web page request. Having looked at a number of web applications over the years, there have been numerous recommendations I have made over and over. Each web app is different, so these recommendations don't apply to every one of them, but should offer some guidance.

1. Reduce latency between user and server

I talked about this one in my last blog. It's not the bandwidth that matters most; it's latency. You need to reduce time it takes for a packet to go from your user or visitor to your server.

Whether the users are coming from the Internet or within the Intranet, the goal is to make the latency is short as possible. You can't get around the physics around distance, but there are some things you can do.

Externally, you have CDN providers that can help caching. Internally, you can deploy WAN optimization devices to do the same, and more.

If you have more control, you can simply ensure that your application is used by those who are closer to the server.

Closer distance between user and server can mask a lot of issues with an efficient application.

2. Increase number of connections, but up to a point

You want to maximize the number of connections you are making to the server to get as much data back to the visitor as possible. With HTTP/1.1, you don't want just one connection.

But you don't want too many connections either. Too many will start to impact the resources on both the server and the visitor's PC. And that would be bad for web performance.

Opening up these connections takes time as well. The TCP 3-way handshake needs to occur. It would occur every time, and if latency is not low enough, site visitors are impacted by this for every new connection that gets opened.

3. Compress all data

You want to minimize the amount of data that gets sent to the visitor's browser for it to download or render on the computer screen. So file sizes should only be as big as they need to be. If they cannot get any smaller, they should be compressed if that's possible.

This is something that doesn't happen enough. Nearly every modern browser supports gzip compression, yet some servers out there still do not have it implemented.

4. Increase server resources

Like bandwidth, server resources have become less of a constraint over the years. We now have multi-core, GHz processors, TB storage, GB RAM, etc. But there are still times when a website is using up these resources, and the immediate way to reduce response time may be to increase server resources. Due to the availability of such resources, it's usually not a big issue upgrading.

There are many other recommendations. This is just a sample of the things that can be done to improve web performance.

In upcoming blogs on APMdigest, I will explore the impact of SPDY, HTTP/2 and QUIC on web performance.

Jean Tunis is Principal Consultant and Founder of RootPerformance
Share this

The Latest

March 27, 2023

To achieve maximum availability, IT leaders must employ domain-agnostic solutions that identify and escalate issues across all telemetry points. These technologies, which we refer to as Artificial Intelligence for IT Operations, create convergence — in other words, they provide IT and DevOps teams with the full picture of event management and downtime ...

March 23, 2023

APMdigest and leading IT research firm Enterprise Management Associates (EMA) are partnering to bring you the EMA-APMdigest Podcast, a new podcast focused on the latest technologies impacting IT Operations. In Episode 2 - Part 1 Pete Goldin, Editor and Publisher of APMdigest, discusses Network Observability with Shamus McGillicuddy, Vice President of Research, Network Infrastructure and Operations, at EMA ...

March 22, 2023

CIOs have stepped into the role of digital leader and strategic advisor, according to the 2023 Global CIO Survey from Logicalis ...

March 21, 2023

Synthetic monitoring is crucial to deploy code with confidence as catching bugs with E2E tests on staging is becoming increasingly difficult. It isn't trivial to provide realistic staging systems, especially because today's apps are intertwined with many third-party APIs ...

March 20, 2023

Recent EMA field research found that ServiceOps is either an active effort or a formal initiative in 78% of the organizations represented by a global panel of 400+ IT leaders. It is relatively early but gaining momentum across industries and organizations of all sizes globally ...

March 16, 2023

Managing availability and performance within SAP environments has long been a challenge for IT teams. But as IT environments grow more complex and dynamic, and the speed of innovation in almost every industry continues to accelerate, this situation is becoming a whole lot worse ...

March 15, 2023

Harnessing the power of network-derived intelligence and insights is critical in detecting today's increasingly sophisticated security threats across hybrid and multi-cloud infrastructure, according to a new research study from IDC ...

March 14, 2023

Recent research suggests that many organizations are paying for more software than they need. If organizations are looking to reduce IT spend, leaders should take a closer look at the tools being offered to employees, as not all software is essential ...

March 13, 2023

Organizations are challenged by tool sprawl and data source overload, according to the Grafana Labs Observability Survey 2023, with 52% of respondents reporting that their companies use 6 or more observability tools, including 11% that use 16 or more.

March 09, 2023

An array of tools purport to maintain availability — the trick is sorting through the noise to find the right one. Let us discuss why availability is so important and then unpack the ROI of deploying Artificial Intelligence for IT Operations (AIOps) during an economic downturn ...