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Zoompf's Web Performance Blog

Tips to Reduce Your Performance Alert Email Frequency

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As your website evolves, it’s inevitable your focus on site performance optimization will ebb and flow. During a new project you may be highly focused on the performance of a new feature, but then after the code deploys and the PR goes out, you settle into maintenance mode, monitoring for regressions until the next big [...]

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A New Way to Justify Your Ongoing Performance Improvement Efforts

There are many great tools out there to measure your current website performance, among them WebPageTest, Google Pagespeed, and of course the Zoompf Free Report. These are fantastic tools for capturing the current state of your website, but all lack one common shortcoming: they provide no historical context of how much better (or worse) your [...]

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SPDYCheck’s New Features: HSTS and Custom Ports

I’m happy to announce a new version of SPDYCheck with a number of improvements. SPDYCheck is an online tool that verifies the many different things a website must do to support SPDY. SPDYCheck also tests a test for best practices which ensures SPDY is used whenever possible. In the last 2 years since SPDYCheck was [...]

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Too Many Performance Defects? 4 Ways to Cut Down the Noise

Time is always a challenge for the performance-minded web developer. You’d love to spend all day tuning your site, but competing priorities are an unavoidable fact of life. When we announced our new Zoompf Alerts beta last week, we mentioned one of the primary goals of Zoompf Alerts was to Find only the performance problems [...]

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Passing Around the DevOps Hat – Help from The Terminator

Last year I posted an article on the growing DevOps movement, the focus on bridging the gap between development and technical operations teams to improve stability, performance and scalability of your website. It certainly takes some time to change the course of a big ship, but in our discussions at Zoompf we’ve been pleasantly surprised [...]

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SSL Performance Diary #2: HTTP Strict Transport Security

This post part of a series, where I discuss the steps I am taking to implement SSL on a website while simultaneously improving its performance. I previously discussed optimized SSL certificates. Today I’ll discuss a super easy SSL performance optimization that everyone should be doing: HTTP Strict Transport Security. When we were designing the web [...]

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Speed Up Your Bootstrap and Font-Awesome Sites Using Font Compression

Twitter Bootstrap and it’s frequent add-on Font-Awesome have gained tremendous popularity in recent years due to the relative ease these libraries provide for building good looking, responsive websites. So much so that here at Zoompf we’ve seen the same performance problem appear again and again: uncompressed font files. Of course, uncompressed font files are not [...]

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Announcing the Zoompf Alerts Beta!

Today we are ecstatic to announce the public beta launch of Zoompf Alerts! Zoompf Alerts is a new website performance solution that continuously scans your web pages for changes that introduce new performance defects. Unlike traditional performance monitoring solutions, Zoompf Alerts does not focus on measuring page load times. Instead, Zoompf Alerts detects when actual [...]

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How Fast Is… FIFA’s World Cup Website?

Our regular video series How Fast Is…? examines real world websites and details the cause of their performances issues as well as what should be done to solve them. After all, the best way to learn about front-end web performance is to see what other people are doing right and doing wrong. In this edition [...]

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SSL Performance Diary #1: The Certificate Chain

Adding support for encrypted SSL connections to a website doesn’t have to reduce the performance of your site. SSL can be properly configured so that it provides security and confidentiality, with minimal impact on the website’s page load time. In fact, SSL is a necessary step to implementing SPDY, which can actually improve the performance [...]

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