Google Made Major Changes To Its Formula For Page Speed. Here’s What to Do About It.

Understand what Lighthouse 6.0 and Core Web Vitals means for your website's future

Understanding Lighthouse 6.0

Since Google's page speed changes in 2018, publishers have engaged in a mad dash to figure out how to build dynamic sites and maintain performance scores that meet the search engine's user experience expectations. Now in 2020, when people are online more than ever, excellent site performance is no longer optional.

Earlier this year, Google released version 6.0 of Lighthouse. As a reminder, Lighthouse is a tool built into the latest version of Google Chrome that helps you determine how well your site is performing, and tells you which pages on your site need improvement.

Let's look at what's changed. Most importantly, Lighthouse has added two new metrics into its formula for page speed:

  • Largest Contentful Paint (LCP): A website's LCP is the time it takes to load the main content on a page.
  • Total Blocking Time (TBT): TBT measures a page's load responsiveness to quantify how long a page is non-interactive prior to becoming interactive. You want your site to have a low TBT to maintain its usability.

Here's a look at how these new metrics stack up against the previous version of Lighthouse:

From web.dev.

As you can tell, First Contentful Paint (FCP) has gained a bit more weight in Lighthouse 6.0. FCP measures the time from click to the time when a user's browser renders the first bit of content from the Document Object Model (DOM), which is your site's HTML structure.

By contrast, two metrics dropped considerable weight. The first is Time to Interactive (TTI), which measures the time from when the page starts loading to when its main subresources have loaded and it's capable of reliably responding to user input quickly. You want your site to have a low TTI to maintain its usability. Second is Speed Index (SI), the measurement of how quickly the contents of a page are populated. Both dropped in Lighthouse's speed calculation by 12–18%.

What Lighthouse 6.0 Means for Your Site

These new metrics haven't changed Lighthouse's primary function — to determine if your website loads as quickly as possible. The new insights are just a new way to measure this more accurately. LCP measures load time, and TBT determines how long a page remains inactive for a user, two data points that have the potential to diminish the overall user experience if not optimized correctly.

It's now even more important to focus on how long it takes your page to render for every use. This means JavaScript, third-party applications, and any other dynamic media must be optimized for speed. Any slowdowns will dramatically hurt both your LCB and TBT scores.

Here's another way to visualize these changes:

From web.dev.

Understanding Core Web Vitals

Shortly after the launch of Lighthouse 6.0, Google announced an update to the way it evaluates overall page experience. This change is measured by three metrics called the Core Web Vitals, that can be tracked in the Google Search Console. The Core Web Vitals will play an important role in how Google measures overall page performance, and could be a make-or-break factor for your site's survival.

Google says 2020's Core Web Vitals are the following data points:

Largest Contentful Paint (LCP): A website's LCP is the time it takes to load the main content on a page. Google wants a LCP to happen within 2.5 seconds of when a page first starts loading.

First Input Delay (FID): This metric quantifies a user's experience when trying to interact with unresponsive pages. This usually occurs between FMP and TTI. You want your FID score to be low to prove the usability of your site. According to Google, pages should haven an FID of less than milliseconds.

Cumulative Layout Shift Score (CLS): CLS determines how often your users experience unexpected layout shifts or changes on a page. To ensure visual stability, you want your CLS score to be low. Google wants pages to maintain a CLS score of 0.1.

These three metrics will work alongside Google's other ranking factors, including a site's mobile friendliness and safety features, to determine its overall page experience and visibility on search.

From Google

Google says it will always consider informative, quality content as its number one search signal. However, if two websites both have quality content, but one site has better Core Web Vitals, the site with a better page experience will always outrank any site that isn't optimized for performance.

"By adding page experience to the hundreds of signals that Google considers when ranking search results, we aim to help people more easily access the information and web pages they're looking for, and support site owners in providing an experience users enjoy." - From Google's page experience announcement, May 2020.

Secure Your Site's Future

The RebelMouse platform evolves alongside Google's algorithm, and our team of growth experts spans all time zones to make sure our sites are optimized for page experience with every new article.

To do this correctly, it takes a lot of optimization to perfect every moment of your site's load time. We've mastered Lighthouse 6.0's formula already, and our scores are drastically outperforming every other CMS on the market.

Our jaw-dropping page speeds have empowered us to guarantee a PageSpeed Insights score of 90+ for every site we power. We've done this through a simplified version of code that still allows for ads, videos, and third-party applications to load quickly.

Now that you're well up to speed on how Google's measures site experience, let'ss take a look at some of our performance scores:

Here's how those scores compare to some of the biggest names on the web:

At RebelMouse, performance is a pillar of our company's culture. We've taken Lighthouse scores seriously for years, and have leveraged them to ensure our sites are constantly high performing. It's why we outperform some of the biggest sites on the web. And like with any pillar of a company's culture, optimizing for high performance is never a one-time effort. Our engineers have been crafting and tuning our platform to address these new standards long before they surfaced.

If you want to publish alongside the speed of the web, request a proposal today and let's start working together.

Related Articles Around the Web
content marketing

Why RebelMouse Is the Best Content Marketing Platform

RebelMouse is a unique platform and company. The company was founded on the vision that media companies would need an always-modern solution to thrive in the new connected internet, and that brands would have to behave like new media companies and use the same platforms.

Keep reading... Show less
creators

Why Premium Creative Agencies and CTOs Choose to Develop on RebelMouse vs. WordPress and Drupal

The Intersection of Design and Development: Where Your Clients Thrive

We started RebelMouse seven years ago knowing that there was a fundamental design flaw in the world of traditional CMSs: Every instance, on every platform, had to be updated independently. It's similar to an era when users had to manage their own Microsoft Exchange Server for email. The costs of managing, maintaining, and iterating on a CMS to keep it awesome and world class is typically a $10 million-a-year endeavor. But even then, these cost-prohibitive CMSs are still behind the times.

Keep reading... Show less
multivariate testing

Native Multivariate Testing at Scale With RebelMouse

What Differentiates Our Approach

There are many popular tools that allow you to perform experiments and A/B tests on your users — primarily Google Chrome Experiments and Optimizely. But all of these solutions are JavaScript additions to your web page that sidestep the problem of old, outdated, and clumsy CMSs. These solutions work by calling on a third-party JavaScript library that rewrites a page after it's rendered. This approach adds extra page weight and creates strange user experiences due to having to wait for everything to load and be rewritten on the fly.

At RebelMouse, we've solved this in a very elegant way. At the core level of our platform, we can natively render different layouts and track the exact differences in performance when comparing a test to your other layouts.

Keep reading... Show less
search engine optimization

The RebelMouse Approach to SEO

An SEO Strategy That Wins With Every Publish

How exactly Google determines search ranking largely remains a mystery for publishers, but what we do know is that the search engine continuously rolls out updates to its algorithm. And while sometimes these updates are small and nearly unnoticeable, other times they result in massive changes around the way Google crawls content, often disrupting the rankings of webpages all across the globe.

With each one of these algorithm changes comes a new approach to search strategy. It's a lot to keep up with in a competitive digital landscape. Publishers are already burdened with the task of creating high-performing quality content that's easy to find on Google and, in turn, easily shared across social. It's a job that can't be solved with advertising dollars either. It's estimated that nearly 80% of users disregard paid search results. Pair this with the fact that 93% of all online experiences begin with a search query and you're left with the realization that it's never been more important to prioritize search engine optimization.

The good news is that RebelMouse has a unique approach to SEO that leverages the tools available to us from the open web alongside our proprietary technology that enables users to win key phrases with every publish. The best part? The platform is designed to empower the people who live closest to content: writers and editors. Here's how it works.

Keep reading... Show less
creators

Modern E-Commerce: Blur the Line Between Content and Design

Create Modular + Reusable Design Patterns on RebelMouse

Content saturation is an industry-wide problem, and the e-commerce space is no exception given that it's filled with big brands, small Etsy stores, and everyone in between all fighting for similar audiences. The best way to fight this symptom is to understand your audience and provide them with what they want.

Keep reading... Show less
instagram-style e-commerce features on rebelmouse

Instagram-style E-commerce Features on RebelMouse

Revolutionizing E-commerce on RebelMouse

Whether you're a brand with a blog or a media company with a site, driving purchasing behavior and building an audience that uses your content to find things they love to buy is vital. We're very proud to have built out the same functionality that everyone is now used to on Instagram, with layovers on images that lead to products with attribution.

Keep reading... Show less
communities

Building Premium Communities and User Journeys on RebelMouse

RebelMouse is much more than just a replacement for a traditional CMS. Our platform is a tremendous community-building experience. Today's social ecosystem has given us a seemingly limitless number of premium creators who understand how to create gorgeous and relevant content that drives the growth of their own audiences. These creators and influencers are either experts in certain topics, or heavily engaged in targeted content that drives their interests. They're not only consuming the content they're passionate about, but they're contributing to the conversation, too. The new role of the editor is not just to cover the most important topics and people around their expertise, but also to invite those preferred influencers into their community and get them to participate in creating premium content.

Read our deck here...

Keep reading... Show less
creators

Dynamic Voting: Grow Traffic and Engagement Organically

Help your audience find its voice.

Creating quality content is no longer on marketers alone. We live in a universe of creators who are willing to not only consume content that resonates, but play a role in the creation, promotion, and conversations surrounding it.

Since the start of RebelMouse, we've been on a journey to create dynamic media that is easier for content creators to curate and amplify on social. It's why we've built an online engagement platform centered around the power of communities that thrive naturally in the digital ecosystem.

Keep reading... Show less
revenue

How to Monetize Your Website in Today’s Publishing Environment

In order to define distributive publishing, we have to ask the following question: If you have quality content, but nobody sees it, does it even exist? The answer is no, because your content needs to be supported in a way that lets it move seamlessly across all channels, especially site, search, and social. But let's take this question a step further: If you can't monetize your content to generate the support it needs, how do you create quality content in the first place?

Keep reading... Show less
rebelmouse infrastructure

Learn More About RebelMouse’s High-Performing Infrastructure

To ensure every site powered by RebelMouse is high performing, secure, and optimized for user experience, we only use the best and most reliable methods to host our infrastructure. Here's a detailed look at some of the services and security measures we use every day to secure maximum stability and security for each of our sites.

Keep reading... Show less
page speed

A Modern Story of Web Performance From RebelMouse Founder + CEO Andrea Breanna

If I had more time, this website would have loaded faster

In the first months of 2020, we've focused at RebelMouse on page speed and performance. We worked very hard and found ways to take 90% of the sites we power to 90+ performance scores via Google's PageSpeed Insights tool — even with sites that are loaded with ads, embeds, third-party analytics, and other typical slow-loading elements. You can read more about our victories here.

A few months after we started this process, COVID-19 hit the world very hard. Suddenly, every media company was faced with a huge problem: Advertising fell off a cliff in what seemed like seconds. The only way to survive this unprecedented downturn is to grow traffic and control costs at the same time. So we started to shave our code and made our websites faster. We dropped costs just as dramatically as we were increasing scores.

Here are some surprises we found when doing this: If you want truly exceptional performance, none of the JavaScript and CSS frameworks that developers love so much make the cut. We thought the React version of RebelMouse was going to be the huge page speed breakthrough, until we realized the only way to achieve this goal was to write the code carefully and refactor it endlessly until it was as short as possible. As any author will tell you, like editing a book or a blog post, the revision process is never really done. By stepping away from frameworks, and methodically shaving vanilla code, our customers continue to see major improvements in performance.

As we announced this to our site network and rolled it out publicly, many of our clients asked me personally, "How did you do it?" The answer is easy to understand regardless of how technical you may be. It's perfectly summarized in this wonderful quote attributed to Mark Twain:

"If I had more time, I would have written a shorter letter."
—Blaise Pascal, 1657 (and later, more famously Mark Twain)

The universe is sometimes very beautiful, and especially when you keep it simple. If you would like to start publishing on a site optimized for both speed and sustainability, request a proposal and let's start working together.

Related Articles Around the Web
industry news

Google Launches New Podcast Manager

New tool gives podcasters retention analytics for every episode

The popularity of podcasting has exploded in the past few years. In 2020, it is estimated that 75% of Americans are now familiar with podcasting, which is an increase of 10 million in just one year.

To meet this demand, Google recently launched Google Podcasts Manager, a new tool designed to help podcasters learn more about their listeners, including how to reach them more effectively.

Google Podcasts Manager will use a verification process to make sure each user's podcast is available on Google Podcasts. The new tool will give podcasters access to metrics to understand their audience's engagement levels, and how those insights vary from episode to episode.

Keep reading... Show less
google

Google Launches Journalism Emergency Relief Fund for COVID-19 Publishers

Through the Google News Initiative, relief fund aids news outlets covering the virus

Small and medium-sized news organizations producing original content about the COVID-19 pandemic for their local communities could be eligible for money from Google.

The search engine announced a global Journalism Emergency Relief Fund through the Google News Initiative to support journalism during the crisis. Funds will range from the low thousands to tens of thousands depending on the size of the newsroom, according to Google.

Keep reading... Show less
page speed

RebelMouse’s 2020 Page Speed Promise

Score 90 or higher on Google's PageSpeed Insights tool

It has been more than a year since Google drastically changed how they measure page speed. Since then, it's been our top priority to optimize every site we power with unparalleled load times that are far ahead of industry leaders.

This means a promise of a score of 90 or higher on PageSpeed Insights. Full stop.

Keep reading... Show less
Subscribe to Our Newsletter