The API gets the same data as the web app and Chrome dev tools that we discussed in previous paragraphs, but it allows us to programmatically generate reports and store the metrics for analysis. The last method to access Google PSI that we’ll discuss today is the Google PageSpeed Insights API. #Google page insights how toExpanding an opportunity will reveal a link to an article by Google PSI that explains the metric and how to improve it. This lists potential improvements sorted by the highest impact. This is fairly straightforward, but one thing that I want to highlight is the “Opportunities” section for both the web app and dev tools. If you’re using Chrome, you can also access this from your developer tools through the Lighthouse tab or the Audits tab if you’re on an older version of Chrome. The report will look something like this: To dip a toe into the pool of PSI’s offerings, you can go to and input a URL to analyze a page’s performance. PSI can be used in one of several ways: through its web app, Chrome developer tools, browser extensions, or API. In this article, we’ll be focused on its performance reporting. Google PageSpeed Insights (PSI) reports on a site’s performance, accessibility, and SEO and provides action items to make improvements. RELATED: Best Practices for Testing in Go Google PageSpeed Insights API Our integration will be based on the premise that we're hosting the app on Heroku, assuming you know your way around using the Rails CLI and ActiveRecord. In this article, we’re going to explore how to integrate Google’s PageSpeed Insights API into our Rails app. But as is the case with any language, there are steps we can take to improve web performance when working in a Rails codebase. Rails is known as a framework that is quick to learn, easy to build on due to its convention over configuration paradigm, and a pleasure to use. In fact, nearly one in five of the largest 10,000 sites (measured by traffic) are built in Rails. What does this have to do with Rails? Rails is prevalent in web development. More recently, Google has started putting larger emphasis on page speed for mobile rankings since 2018.
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