Web Revolution: Core Web Vitals Shave Off Over 10,000 Years in Loading Speeds, According to Google

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Google asserts that optimizing Core Web Vitals has saved over 10,000 years in page load times. Despite these gains, most websites have yet to meet the specified thresholds.

Throughout the current year, the optimization efforts for Core Web Vitals have contributed to Chrome users experiencing a cumulative time savings of over 10,000 years in page load times. Notably, Google and the broader web community have collaborated on implementing technical enhancements, including pre-rendering content, to enhance overall page speed.

Despite the strides made in improving website performance, a significant challenge persists – more than half of the websites still fall short of meeting the established Core Web Vitals thresholds. This indicates that further efforts are required to bring a more significant portion of the web in line with the optimized standards set by Core Web Vitals.

As per Google’s recent announcement, optimizations focused on Core Web Vitals (CWV) have resulted in a collective time savings of over 10,000 years in page load time for Chrome users in 2023.


Core Web Vitals represent a set of metrics devised by Google to quantify the user experience on web pages. These metrics include:

  1. Largest Contentful Paint (LCP): This measures load time by assessing when the primary content is rendered.
  2. First Input Delay (FID): This metric gauges responsiveness by evaluating the time between a user’s click and the browser’s response.
  3. Interaction to Next Paint (INP): It evaluates a page’s responsiveness to user interactions.
  4. Cumulative Layout Shift (CLS): This metric measures visual stability by tracking unexpected layout changes.


Google’s emphasis on these metrics reflects its commitment to enhancing the overall user experience on the web, with tangible results demonstrated by the substantial time savings achieved through Core Web Vitals optimizations.


Quantifying Time Saved through CWV Optimizations


An in-depth analysis conducted by Google’s Chrome team, drawing insights from real-world data obtained from millions of website visits, has allowed the estimation of time saved through Core Web Vitals (CWV) optimizations. The reported figure of over 10,000 years denotes the cumulative time savings realized across all Chrome desktop and mobile users throughout the current year.

Breaking down these impressive statistics, it is revealed that CWV optimizations have contributed to Chrome users experiencing over 8,000 years in saved page load time on Android devices and an additional 2,000 years on desktop platforms within the same timeframe. Beyond page load times, considerable improvements were observed in page response metrics, resulting in a total time saving of over 1,200 years.


Google further elucidated the technical enhancements integrated into Chrome to achieve these substantial time savings. Strategies such as pre-connecting resources and rendering optimizations were implemented, showcasing the commitment to refining the user experience. For instance, a strategic focus on prioritizing image loading over other tasks yielded notable outcomes, including a reduction in layout shift and an improvement in Largest Contentful Paint (LCP) by over 5% on mobile devices. Collectively, these measures contribute to the significant time efficiencies observed across various user interactions and device types.

The company emphasized noteworthy advancements within the larger web community, showcasing substantial speed enhancements across platforms like WordPress, JavaScript frameworks like React and Angular, and prominent websites like Amazon and Cricbuzz. A standout example is WordPress 6.3, which achieves page load speeds up to 27% faster than its predecessors.


Since its introduction in 2020, more than 40% of websites have adhered to the Core Web Vitals (CWV) thresholds. While this signifies commendable progress, there is still work to be done, with more than half of the sites yet to meet the CWV criteria. Nevertheless, the strides made thus far underscore the profound impact that a dedicated focus on user experience can bring about in the digital landscape.

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Shilpi Mathur
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