Victoria SEO & Core Web Vitals: 2025 Guide for Businesses

Q: Do Core Web Vitals affect mobile and desktop rankings equally?

Google primarily uses mobile-first indexing, which means your Core Web Vitals scores on mobile devices have a more substantial impact on rankings than desktop scores. However, poor performance on either can affect user experience and engagement.

Q: Can good Core Web Vitals compensate for weak content?

No. Core Web Vitals improve your site's technical performance but cannot replace the need for high-quality, relevant content. They are a ranking factor, not a ranking foundation.

Q: Are Core Web Vitals essential for small businesses or portfolio websites?

Yes. Even simple sites benefit from passing Core Web Vitals because users expect fast, stable experiences. Google's ranking signals apply to all websites, including artist portfolios, local business sites, and blogs.

Q: How often should I audit my Core Web Vitals scores?

Audit your Core Web Vitals monthly if you're actively improving your site, or quarterly for low-maintenance sites. Use Google Search Console’s Core Web Vitals report to catch regressions over time.

Q: What’s the difference between lab and field data in Core Web Vitals?

Lab data is generated in a controlled test environment such as Lighthouse, while field data reflects real-user experiences collected over time through tools like the Chrome User Experience Report. Field data is what Google uses in rankings.

Steve Berg
Apr 11
4 min read

Updated: May 19

Learn how Google's updated Core Web Vitals (LCP, INP, CLS) significantly influence your website’s SEO performance. Discover practical strategies and platform-specific insights to optimize your site's user experience and boost rankings.

Written by: Steve Berg

Visual representation of Core Web Vitals metrics—LCP, FID, and CLS—used in a blog article explaining their impact on SEO and overall site performance

Google's Core Web Vitals (CWV) are more than just technical benchmarks—they significantly influence website rankings and user experience. But what exactly are Core Web Vitals, and how can you leverage them to improve page experience, boost site speed optimization, and ultimately enhance your SEO? This article explains the updated Core Web Vitals (2024–2025) and practical strategies to meet Google's expectations. These practices also apply to other search engines like Bing and Yahoo, boosting your overall search engine presence.

What Are Core Web Vitals?

Core Web Vitals measure website user experience using three primary metrics:

Largest Contentful Paint (LCP): Measures loading performance, marking when the most significant content element (text or image) becomes visible. Google recommends an LCP under 2.5 seconds [Google, 2024].
Interaction to Next Paint (INP) (replacing First Input Delay as of March 2024 [Google, 2024]): Measures responsiveness by observing delays in all user interactions (click, tap, and keyboard inputs). A good INP score is under 200 milliseconds.
Cumulative Layout Shift (CLS): This measure evaluates visual stability by measuring unexpected layout shifts on pages. Ideally, CLS scores should be below 0.1.

Why Core Web Vitals Matter for SEO and Website Development

Google clearly states that Core Web Vitals directly impact search rankings through page experience signals. Achieving good CWV aligns with Google's core ranking systems [Google, 2024]. Websites with poor CWV scores risk being outranked by faster, smoother competitors. Moreover, improved page experience correlates with better user engagement and higher conversion rates, as noted by Google’s John Mueller [Search Engine Journal, 2024].

In 2024, Google retired the dedicated Page Experience report in Search Console but continues emphasizing Core Web Vitals through individual metrics reporting [Google, 2024]. It's essential to recognize that, despite optimization efforts, performance can vary based on hosting and CMS choices. Due to inherent "code bloat," website builders like Wix can negatively affect LCP and INP metrics. I documented my experience optimizing LCP and INP in Wix Studio—you can review the detailed findings in this Core Web Vitals optimization study.

How Different CMS Platforms Affect Core Web Vitals

CMS choices significantly impact CWV performance:

WordPress (self-hosted): Approximately 35% of sites pass CWV metrics on mobile due to its flexibility but potential "bloat" from plugins and themes [CrUX, 2024]. WordPress core improvements recently boosted performance significantly, emphasizing the importance of ongoing optimizations like caching and lightweight themes.
Wix: Around 52% pass CWV, benefiting from centralized optimizations. Users should remain mindful of heavy content additions [CrUX, 2024].
Squarespace: Improved significantly to 53%, reflecting platform-wide infrastructure enhancements.
Shopify: At approximately 62%, Shopify excels despite complex e-commerce features. Users should limit excessive third-party scripts and optimize product images.
Duda: Leads with ~68% passing CWV, reflecting substantial platform-level performance optimizations.

Selecting the proper CMS, coupled with continuous monitoring and optimization, is essential for maintaining strong CWV performance.

How to Improve Your Page Experience Through Site Speed Optimization

Optimize your site for better CWV using these updated practices:

Optimize Images
- Use compression tools and modern image formats (Webp/AVIF).
- Responsive image techniques ensure efficient loading.
Minimize JavaScript and CSS
- Remove unused scripts, minify CSS/JS files, and defer non-critical resources.
- INP requires reducing long JavaScript tasks and blocking main-thread work [Google Chrome Team, 2024].
Enable Browser Caching and CDN
- Serve content faster from geographically closer servers.
Use Server-Side Rendering or Static Pages
- Load static or pre-rendered pages to enhance LCP and reduce CLS.
Improve Web Hosting Quality
- Reliable, high-speed hosting directly boosts all CWV metrics.

Tools for Measuring and Improving Core Web Vitals

Google PageSpeed Insights: Detailed CWV reports with actionable suggestions.
Google Search Console: Site-wide CWV insights (focusing on LCP, INP, and CLS).
GTmetrix and Lighthouse: Comprehensive third-party diagnostics for performance.

FAQs: Core Web Vitals and How They Affect SEO

Do Core Web Vitals affect mobile and desktop rankings equally?

Google primarily uses mobile-first indexing, which means your Core Web Vitals scores on mobile devices have a more substantial impact on rankings than desktop scores. However, poor performance on either can affect user experience and engagement.

Can good Core Web Vitals compensate for weak content?

Are Core Web Vitals essential for small businesses or portfolio websites?

How often should I audit my Core Web Vitals scores?

What’s the difference between lab and field data in Core Web Vitals?

Conclusion

Core Web Vitals represent a crucial shift toward prioritizing user experience in SEO. Understanding and optimizing these updated metrics (LCP, INP, CLS) will enhance your search rankings and user satisfaction, reinforcing the benefits of improved traffic and conversions [Google, John Mueller, 2024].

⚡ Need help optimizing your website's Core Web Vitals? I offer expert SEO services that improve performance, rankings, and user experience — all tailored to small businesses and creatives.

Ready to boost your search visibility? Contact me today and let's audit your site together.

References:

Google, "Core Web Vitals & Page Experience," Google Search Central, 2024.
Search Engine Journal, "Core Web Vitals Influence Rankings Beyond Tiebreakers," John Mueller, 2024.
Chrome User Experience Report (CrUX), "CWV Technology Report," January 2024.
Google Chrome Team, "Optimizing Interaction to Next Paint (INP)," 2024.