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Zoompf's Web Performance Blog

Note: Archived Content

This is the archived version of the Zoompf blog. Since our acquisition by Rigor, all our new research and posts on web performance are being published on The Rigor Blog

Zoompf Gets Acquired!

We are so excited to announce that Zoompf has been acquired by Rigor, a leader in the web performance monitoring industry! Usually when a company gets acquired they will write some sales-y fluff piece full of hackneyed buzzwords like "synergy" or "game-changer" and generic statements about how the companies will work together. But that’s just […]

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Determining Someone’s Name From Their Email Address

This post has nothing to do with our awesome web performance products, but is about how I used software and some public data to solve an interesting problem, and how that helped improve how Zoompf sells our product. Hundreds of people a week use our free performance report. Our sales team sends these people a […]

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From Alert Email to Backup Fail to Performance Problem

If you got an alert email from your performance monitoring solution telling you your site was now loading 600 ms slower, what would you do? What is your process to figuring out what happened and what you need to do to fix it? This is the story of how one of our customers came to […]

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New Features: Multiple Interactive Waterfalls and HAR Importing

Waterfall diagrams are an invaluable tool when determining the root cause of slow websites. They provide a wealth of data that experts can use to gain great insight. At Zoompf, we focus on helping you discover problems by automatically analyzing your website for over 400 front-end performance issues. Today we have added 2 great features […]

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Performance Optimization is a Process Not an Event

If someone asks you, "is your website optimized?" your answer should always be "no", because, like software, it’s never done. Optimizing your website’s performance is not a one time event, but rather a seamless, repeatable, and non-disruptive process that the web team implements for applying performance optimizations. The concept of website performance optimization is simple, […]

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Two New Zoompf Features

I’m happy to announce two new and long requested features here at Zoompf: auditing resources like a browser and hostname targeting. Auditing Modes Zoompf has always been able to crawl your website and scan multiple pages for performance issues. This is a great way to ensure that all of your pages are following performance best […]

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I Doubled the Speed of Our Product with Multiple Row Inserts

This is the story about how I discovered something stupid that I did with our database. Fixing this mistake made our performance scanner twice as fast and dropped our database query count by 2/3! This is a huge win for our customers who can now get performance findings 2x quicker. And while I’m a little […]

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SPDY is Dead. Long Live HTTP/2!

Earlier this week Google announced that they will deprecate support for SPDY and transition to HTTP/2. As we have discussed before, SPDY was Google's experiment in making the web faster by improving the way your browser communicates with websites. SPDY formed the basis for HTTP/2 and has been largely replaced by it. With HTTP/2 is […]

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Detected and Optimizing Mismatched Image Formats

Serving the wrong image type can really hurt web performance. An improperly saved image can waste bandwidth and delay the page load time. In this blog post, I’ll show how you can use the file and grep commands to quickly, easily, and automatically find mismatched images that look like one image type but are actually […]

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HTTP/2: A Fast, Secure Bedrock for the Future of SEO

In prior articles we've written extensively about website performance and securing your website, both factors Google has publicly announced as search ranking factors. These articles provide extensive tips using existing tools and technologies to improve your site performance and security (tips we highly recommend you follow). But did you know Google also developed and is […]

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