Quantify the revenue impact of a technically sound website. This calculator focuses on modeling the ROI of boosting your site speed and improving Core Web Vitals.
Projected Conversion Rate Uplift
8.80%
Additional Monthly Revenue
$880
Additional Annual Revenue
$10,560
Technical SEO can seem abstract, but its impact on the bottom line is very real. Among all technical factors, site speed has one of the most direct effects on user experience and conversion rates. Slow pages frustrate users, leading them to abandon your site and costing you sales. Numerous studies have shown that every second you shave off load time can lead to a measurable increase in revenue.
Google uses a set of metrics called Core Web Vitals to measure page experience. Improving them is critical for both SEO and conversions:
While speed is paramount, a technically sound site also needs a solid foundation in other areas:
Use free tools like Google's PageSpeed Insights, GTmetrix, or WebPageTest.org. It's crucial to test key pages (homepage, category pages, product pages) and analyze the Core Web Vitals report in Google Search Console for real-world user data over the last 28 days.
Ideally, you should aim for a load time of under 3 seconds, with a Largest Contentful Paint (LCP) of under 2.5 seconds to pass Google's Core Web Vitals assessment. In e-commerce, every millisecond counts, so the faster, the better.
The most common culprits include large, unoptimized images (the #1 issue), excessive or unminified JavaScript and CSS files, a slow web hosting server or plan, a high number of third-party scripts (like tracking pixels or chat widgets), and a lack of effective caching.
Yes. Page speed has been a ranking factor for years, and its importance has increased with the introduction of Core Web Vitals as part of the "Page Experience" signal. A faster site provides a better user experience, which Google aims to reward.
Lab data is collected in a controlled environment with predefined device and network settings. It's useful for debugging. Field data (also known as Real User Monitoring or RUM) is collected from actual Chrome users who have visited your site. Field data is what Google uses for ranking and provides a more accurate picture of your real-world performance.
A CDN is a network of servers distributed globally. It stores copies of your website's static assets (like images and CSS files). When a user visits your site, the CDN serves these assets from the server geographically closest to them, significantly reducing latency and improving load times.