Google's Interaction to Next Paint (INP) metric measures how quickly a website responds to user input. In this article we'll discuss how INP can vary depending on the loading progress of the website.
"Why are my pages loading so slowly?" is a question many of us frequently ask. Slow loading websites are one of the biggest issues on the web that hurts user experience, bounce and conversion rates, and SEO.
Luckily, there are many techniques you can use to fix slow loading websites, including improving the hosting environment, implementing caching, optimizing images and code, and others.
In this article, we'll look into how to make slow loading websites faster by following some hands-on recommendations.
Soft navigation reporting lets you measure Core Web Vitals and other metrics for the dynamic URLs used in single page applications (SPAs). Support for this shipped in Chrome 151 in August 2026.
In this tutorial, we’ll look into how you can report Core Web Vitals from a React application to the console.
Google's Core Web Vitals assessment tells you how well your website does on several user experience and page speed metrics. Passing the assessment delivers a better experience for visitors on your website and can help you rank higher in Google.
This article explains how to run a Core Web Vitals assessment, what it means if your site fails the assessment, and what you can do about it.
Single page applications (SPA) don’t download a new HTML document when a visitor moves from one page to the next. They rely on soft navigations instead, and those are far harder for the browser to detect than hard navigations.
For years that meant Core Web Vitals and other web performance metrics only really described the initial page load of a single page app. Whatever a visitor did after that was either attributed to the URL they originally opened or not measured at all.
That has changed. Chrome 151, released in August 2026, can measure Core Web Vitals for soft navigations, the result of several years of work by the Chrome team on defining the heuristics and creating the APIs.
The Largest Contentful Paint is the Core Web Vitals metric that websites most often fail.
To make optimizing LCP easier Google has started to recommend breaking the metric down into individual components called subparts. By breaking LCP down into separate load stages you can more easily identify suitable optimizations.
Bits of information that search engines use to decide what pages should appear in search results are called ranking signals. There are several groups of ranking signals, for example looking at content relevance, quality, and user experience on the destination web page.
This article explains what Google's page experience signals are and how you can optimize them.
The Cumulative Layout Shift (CLS) metric measures how much content moves around on a web page after rendering.
However, sometimes real users experience layout shifts that can’t easily be replicated in lab-based test results. This article looks at why this happens and what you can do to identify and fix these layout shifts.
Earlier this month Google released the CrUX History API. CrUX is the Chrome User Experience Report which provides real-user page speed metrics for millions of websites. The History API allows us to see how the speed of a website has changed over time.
This article explains how you can use the API to look up page speed data for a website.
Google Search Console (GSC) is a free service Google offers to website owners. It provides insight on how much Google search traffic your websites get, what pages are showing up in Google, and what you can do to optimize your website.
Since the Page Experience Update in 2021, Google has used the Core Web Vitals metrics as a ranking factor. This article will take a closer look at the Web Vitals data that's available in Google Search Console.
Google’s Chrome User Experience Report (CrUX) is a dataset of real user metrics that assess the overall performance and user-friendliness of a website. In addition to other key indicators, it includes the three Core Web Vitals that Google uses in its search ranking algorithm.
Understanding the Google CrUX report can help you improve your SEO rankings and page load times. You can also use it to compare your website to those of your competitors.
When running page speed tests using different tools, you'll often find that the metrics they report don't match up exactly or may even show significant discrepancies.
This article explains why you might see score and metric differences between PageSpeed Insights (PSI), Lighthouse, and other tools.
In June 2021, Google started using Core Web Vitals as a search result ranking factor. The Core Web Vitals are a set of three user experience metrics: Largest Contentful Paint, Interaction to Next Paint and Cumulative Layout Shift.
For each of these metrics, Google defined thresholds that websites have to meet in order to get SEO benefits. A website that doesn't pass the Core Web Vitals can drop in search rankings.
This article looks into which of these metrics is hardest to pass and causes the most problems for websites.
The Core Web Vitals are a set of user experience metrics that Google uses as part of its search result rankings. But how easy is it to game them?
Google will start using Core Web Vitals as part of their rankings in May 2021. This page goes through common questions about Core Web Vitals and how they affect rankings.