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We use ad-blockers as well, you know. We gotta keep those servers running though. Did you know that we publish useful books and run friendly conferences — crafted for pros like yourself? E.g. our upcoming SmashingConf London, dedicated to all things web performance.

Posts Tagged ‘Performance’.

We are pleased to present below all posts tagged with ‘Performance’.

You May Be Losing Users If Responsive Web Design Is Your Only Mobile Strategy

You resize the browser and a smile creeps over your face. You’re happy: You think you are now mobile-friendly, that you have achieved your goals for the website. Let me be a bit forward before getting into the discussion: You are losing users and probably money if responsive web design is your entire goal and your only solution for mobile. The good news is that you can do it right.

You May Be Losing Users If Responsive Web Design Is Your Only Mobile Strategy

In this article, we’ll cover the relationship between the mobile web and responsive design, starting with how to apply responsive design intelligently, why performance is so important in mobile, why responsive design should not be your website’s goal, and ending with the performance issues of the technique to help us understand the problem.

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Streamlining Mobile Interactions

The mobile web is a harsh environment: mobile processors are slower than their desktop counterparts; network connectivity is flaky; bandwidth is low; latency is high; and touchscreen keyboards are slow. The best mobile web applications are the ones that excel at handling these challenges.

Streamlining Mobile Interactions

In this article, we'll look at how to identify the tasks your users want to accomplish on a mobile device, memorize as much as you can about your users’ situation, presume that your users’ actions will succeed (and get them to their next task) and also how to predict your users’ next actions, and prepare accordingly.

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Cache Invalidation Strategies With Varnish Cache

Phil Karlton once said, "There are only two hard things in Computer Science: cache invalidation and naming things." This article is about the harder of these two: cache invalidation. It’s directed at readers who already work with Varnish Cache. To learn more about it, you’ll find background information in “Speed Up Your Mobile Website With Varnish.”

varnish-cache

10 microseconds (or 250 milliseconds): That’s the difference between delivering a cache hit and delivering a cache miss. How often you get the latter will depend on the efficiency of the cache — this is known as the “hit rate.” A cache miss depends on two factors: the volume of traffic and the average time to live (TTL), which is a number indicating how long the cache is allowed to keep an object. As system administrators and developers, we can’t do much about the traffic, but we can influence the TTL.

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Varnish – Speed Up Your Mobile Website

Imagine that you have just written a post on your blog, tweeted about it and watched it get retweeted by some popular Twitter users, sending hundreds of people to your blog at once. Your excitement at seeing so many visitors talk about your post turns to dismay as they start to tweet that your website is down — a database connection error is shown.

Speed Up Your Mobile Website With Varnish

Or perhaps you have been working hard to generate interest in your startup. One day, out of the blue, a celebrity tweets about how much they love your product. The person’s followers all seem to click at once, and many of them find that the domain isn’t responding, or when they try to sign up for the trial, the page times out.

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Addressing The Responsive Images Performance Problem: A Case Study

Five-inch mobile devices are on the market that have the same screen resolution as 50-inch TVs. We have users with unlimited high-speed broadband as well as users who pay money for each megabyte transferred. Responsive design for images is about optimizing the process of serving images to users.

Addressing The Responsive Images Performance Problem: A Case Study

In this article, we will share our responsive image technique, the “padding-bottom” technique, which we researched and implemented on the mobile version of the Swedish news website Aftonbladet.

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Analyzing Network Characteristics Using JavaScript And The DOM, Part 2

In Part 1 of this series, we had a look at how the underlying protocols of the Web work, and how we can use JavaScript to estimate their performance characteristics. In this second part, we’ll look at DNS, IPv6 and the new W3C specification for the NavigationTiming API.

Analyzing Network Characteristics Using JavaScript And The DOM, Part 2

Every device attached to the Internet is identified by a numeric address known as an IP address. The two forms of IP addresses seen on the open Internet are IPv4, which is a 32-bit number often represented as a series of four decimal numbers separated by dots, e.g. 80.72.139.101, and IPv6 which is a 128-bit number represented as a series of multiple hexadecimal numbers separated by colons, e.g. 2607:f298:1:103::c8c:a407.

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Don’t Get Crushed By The Load: Optimization Techniques And Strategies

Despite improvements in broadband and wireless Internet, load is in many ways more of an issue now than it was five years ago. The proliferation of mobile devices, increased user expectations, and the very real risks of losing customers and dropping in search result rankings have laid a heavy burden on developers to optimize loading time at all costs.

Ivy Group page under load has improved response time with memcached

In building websites primarily for the desktop environment, the Web development community previously didn’t spend much time concerning itself with load issues. Selecting the proper image formats and saving our JPEGs for the Web was about as far as many of us would go. On the whole, our hardware and software tools are forgiving enough to accommodate sloppy code. Our production environments can handle thousands of visitors per day, and our clients tend to have predictably manageable traffic.

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How To Create High-Performance Mobile Websites

Editor’s Note: This article features just one of the many solutions for creating high-performance mobile websites. We suggest that you review different approaches such as Building A Responsive Web App, Improving Mobile Support and Making Your Websites Faster before choosing a particular solution.

People start to lose interest in a website if they don’t get a response within three seconds. Fulfilling this expectation for mobile phone users requires a different approach to usage analysis, design and testing.

Creating High-Performance Mobile Websites

This article expands on the techniques that Johan Johansson explains in his article “How to Make Your Websites Faster on Mobile Devices,” published in April 2013. We’ll demonstrate methods to identify how people interact with a website differently on mobile devices, and the design decisions that can be made based on this understanding.

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Gone In 60 Frames Per Second: A Pinterest Paint Performance Case Study

Today we’ll discuss how to improve the paint performance of your websites and Web apps. This is an area that we Web developers have only recently started looking at more closely, and it’s important because it could have an impact on your user engagement and user experience.

Gone In 60 Frames Per Second: A Pinterest Paint Performance Case Study

Frame rate is the rate at which a device produces consecutive images to the screen. A low frames per second (FPS) means that individual frames can be made out by the eye. A high FPS gives users a more responsive feel. You’re probably used to this concept from the world of gaming, but it applies to the Web, too.

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Case Study Improve Mobile Support With Server-Side-Enhanced Responsive Design

In many ways, responsive Web design deserves a big share of the honor for making the Web more usable on non-desktop devices. This trend of letting the browser determine more about how a Web page should be displayed makes sense, especially now that mobile browsers are slightly more trustworthy than in the old days of mobile.

Improve Mobile Support With Server-Side-Enhanced Responsive Design

However, a responsive website is not automatically a mobile-friendly website. Amid the buzz of trendy Web development techniques, the good ol’ Web server doesn’t get the spotlight it deserves. Modern Web development should be about finding the right balance between server-side and client-side implementation.

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Performance Optimization How To Make Your Websites Faster On Mobile Devices

A recent study (PDF) found that more than 80% of people are disappointed with the experience of browsing Web on mobile devices and would use their smartphones more if the browsing experience improved.

How To Make Your Websites Faster On Mobile Devices

This isn’t surprising when 64% of smartphone users expect websites to load in 4 seconds or less, while the average website takes more than twice that amount, at 9 seconds. This article explains techniques you can use to make your websites faster on mobile devices.

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Responsible Considerations For Responsive Web Design

Responsive Web design has been evolving rapidly ever since Ethan Marcotte coined the term two years ago. Since then, techniques have emerged, become best practices and formed part of our ever-changing methodology.

Readability app

A few obvious examples are the multitude of responsive image techniques, conditional loading, and responsive design and server-side components (RESS), among many other existing and emerging strands stemming from the core concept of responsive Web design.

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