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Understanding Core Web Vitals for Dental Websites

Home Ā» Dental SEO Essentials Ā» Technical SEO Ā» Understanding Core Web Vitals for Dental Websites


In today’s digital world, having a fast, user-friendly website is essential for attracting new patients and retaining existing ones. Core Web Vitals, a set of performance metrics introduced by Google, play a significant role in search engine optimization (SEO) and your practice’s online success. As a technical SEO expert, I’m here to help you understand and optimize your dental practice’s website for these vital metrics.

The importance of Core Web Vitals in SEO

Core Web Vitals is a part of Google’s Page Experience update, which aims to ensure that websites offer a great user experience. These metrics focus on three crucial aspects of website performance: loading speed, interactivity, and visual stability. They include Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS).

In 2021, Google announced that Core Web Vitals would impact search rankings, making them essential for SEO. Dental practices that prioritize these metrics will likely enjoy higher search visibility, leading to more website traffic, increased patient inquiries, and ultimately, a thriving practice.

Why dental practices should care about their website performance

For dental practices, your website is often the first point of contact for potential patients. An optimized, user-friendly site can make a strong impression, encouraging visitors to book appointments and trust your expertise. Here’s why improving your website’s performance matters:

  • User experience: A fast-loading, responsive website offers a positive user experience, which can increase conversions and boost patient satisfaction.
  • Search visibility: With Core Web Vitals impacting search rankings, optimizing your website can help you rank higher on search engine results pages (SERPs), leading to more organic traffic.
  • Competitive advantage: Many dental practices still have poorly optimized websites. By investing in website performance, you’ll stand out from the competition and attract more patients.

By the end of this guide, you’ll have a clear understanding of Core Web Vitals and the steps you can take to optimize your dental practice’s website. Let’s dive in and start mastering these essential performance metrics together!

Understanding Core Web Vitals

Before diving into optimization techniques, it’s essential to grasp the three Core Web Vitals and their significance in website performance. These metrics are key indicators of user experience, and improving them will benefit both your visitors and your dental practice’s search rankings.

Largest Contentful Paint (LCP)

Largest Contentful Paint (LCP)

LCP measures the time it takes for the largest content element on a page to load, such as an image or a block of text. A faster LCP indicates that users can quickly access the main content, which is crucial for keeping their attention.

Ideal LCP value: 2.5 seconds or less

Example: If your dental practice’s homepage features a large banner image, LCP measures the time it takes for this image to fully load. A longer loading time might cause visitors to leave your site, while a shorter one keeps them engaged.

First Input Delay (FID)

First Input Delay (FID)

FID quantifies the time between a user’s first interaction with a page (e.g., clicking a button) and the browser’s response. A low FID ensures that your website feels responsive and interactive, which is crucial for maintaining user satisfaction.

Ideal FID value: 100 milliseconds or less

Example: When a potential patient clicks on the “Book an Appointment” button, they expect a quick response. A high FID might frustrate users, while a low FID creates a smooth experience and increases the likelihood of booking.

Cumulative Layout Shift (CLS)

Cumulative Layout Shift (CLS)

CLS measures the unexpected movement of page elements while the page is loading. High CLS values can be frustrating for users, as they may struggle to interact with the content or accidentally click on the wrong elements.

Ideal CLS value: 0.1 or less

Example: Imagine a visitor trying to read about your dental services, but the text keeps shifting due to late-loading images or ads. This poor experience might cause the user to abandon your site, while a low CLS provides a stable and enjoyable browsing experience.

In summary, optimizing your dental practice’s website for Core Web Vitals involves improving LCP, FID, and CLS. By enhancing these metrics, you’ll offer a better user experience, potentially boosting search rankings and attracting more patients. The following sections will cover common mistakes to avoid, best practices, and practical examples to help you optimize your site.

Common Mistakes to Avoid

As we work together to improve your dental practice’s website performance, it’s crucial to avoid common pitfalls that can negatively impact Core Web Vitals. Let’s explore these mistakes and learn how to steer clear of them for a better user experience and higher search rankings.

Inefficient Image Optimization

Large, unoptimized images can significantly slow down your website, affecting LCP and user experience. To avoid this issue:

  1. Compress images: Use tools like ImageOptim or TinyPNG to reduce image file sizes without sacrificing quality.
  2. Choose the right format: Save images in modern formats like WebP or AVIF for better compression and faster loading times.
  3. Use responsive images: Implement srcset and sizes attributes to serve responsive images tailored to users’ screen sizes and resolutions.
  4. Use lazy loading: Implement lazy loading to load images only when they enter the viewport, reducing initial load times.
  5. Serve scaled images: Ensure that images are sized appropriately for their display dimensions to reduce unnecessary data transfer.

Inadequate Server Response Times

Slow server response times can increase LCP and FID, harming user experience and SEO. To optimize server performance:

  1. Upgrade hosting: Choose a reliable hosting provider with fast servers and solid uptime. Consider upgrading to a dedicated server or a virtual private server (VPS) for better performance.
  2. Enable caching: Implement browser caching to store static files locally, reducing server load and improving load times.
  3. Opt for a Content Delivery Network (CDN): A CDN can serve your website’s content from servers closer to users, resulting in faster load times and a better user experience.

Overuse of Third-Party Scripts

Excessive third-party scripts can negatively impact FID and overall website performance. To minimize their impact:

  1. Audit scripts: Review all third-party scripts on your website and remove any unnecessary ones. Focus on retaining only essential tools that provide value to your dental practice.
  2. Defer or async loading: Use the defer or async attributes to load JavaScript files asynchronously, preventing them from blocking page rendering.
  3. Minimize script execution time: Optimize custom JavaScript code by minimizing execution time, which will help reduce the impact on FID.
  4. Optimize custom code: Review and optimize your custom JavaScript code to reduce its impact on FID.
  5. Code splitting: Divide your JavaScript code into smaller, more manageable chunks using code splitting to reduce the load time of individual pages.

By avoiding these common mistakes and following best practices, you’ll be well on your way to optimizing your dental practice’s website for Core Web Vitals and enhancing user experience.

General Examples and Scenarios: Optimizing LCP

Let’s dive into some real-life scenarios to better understand how optimizing Largest Contentful Paint (LCP) can improve your dental practice’s website performance.

Example 1: Reducing Image File Size

Imagine a dental practice website showcasing before-and-after treatment photos. The original images are high-resolution and large in file size, causing slow loading times and negatively impacting LCP.

Step-by-step solution:

  1. Use an image compression tool like ImageOptim or TinyPNG to reduce the file size without compromising image quality.
  2. Convert images to modern formats like WebP for better compression and faster loading.
  3. Re-upload the optimized images to your website and monitor LCP to observe the improvement.

Outcome: By reducing image file sizes, the dental practice’s website should load faster, improving LCP and overall user experience.

Example 2: Implementing Lazy Loading for Offscreen Images

Consider a dental practice website with a long homepage filled with informative images. Visitors need to scroll down to view all the content, but the site loads every image at once, resulting in a slow LCP.

Step-by-step solution:

  1. Implement lazy loading using the loading="lazy" attribute on your img tags. This loads images only when they enter the viewport.
  2. Test your website to ensure that images load correctly as users scroll down the page.
  3. Monitor LCP to observe the improvement in page load times and overall user experience.

Outcome: With lazy loading in place, the dental practice’s website should load faster, as offscreen images load only when needed. This will improve LCP and create a better browsing experience for potential patients.

General Examples and Scenarios: Improving FID

Now, let’s explore some common scenarios to help you understand how to improve First Input Delay (FID) on your dental practice’s website.

Example 1: Breaking up Long Tasks into Smaller Tasks

Suppose your dental practice website has a long script executing when a user tries to interact with the site, such as a JavaScript animation or a complex form. This can cause a slow FID, leading to a poor user experience.

Step-by-step solution:

  1. Identify long tasks by using Performance tools in your browser’s developer tools.
  2. Break up the long tasks into smaller, more manageable chunks using requestAnimationFrame or setTimeout to spread out the work over multiple frames.
  3. Test your website to ensure that user interactions are now responsive and smooth.
  4. Monitor FID to observe the improvement in interactivity and user experience.

Outcome: By breaking up long tasks, your dental practice’s website should have a faster response time, improving FID and user satisfaction.

Example 2: Optimizing Event Listeners

Imagine a dental practice website with several interactive elements, like appointment booking forms and drop-down menus. Poorly optimized event listeners can negatively impact FID, causing sluggish site interactions.

Step-by-step solution:

  1. Audit your website’s JavaScript event listeners, identifying any unnecessary or redundant listeners.
  2. Remove or consolidate event listeners to reduce their impact on FID.
  3. Implement passive event listeners using the passive option to improve scrolling performance.
  4. Test your website to ensure all interactive elements continue to function as expected.
  5. Monitor FID to observe the improvement in site interactivity and user experience.

Outcome: By optimizing event listeners, your dental practice’s website should be more responsive, improving FID and ensuring a smooth browsing experience for potential patients.

General Examples and Scenarios: Minimizing CLS


In this section, we’ll go over some examples to help you minimize Cumulative Layout Shift (CLS) on your dental practice website and create a more stable browsing experience for your visitors.

Example 1: Reserving Space for Images and Embedded Elements

Let’s say your dental practice website has a blog featuring images and embedded videos. If you don’t reserve space for these elements, they can cause unexpected layout shifts, resulting in a high CLS.

Step-by-step solution:

  1. Determine the aspect ratio (width-to-height ratio) for your images and embedded elements.
  2. Use CSS to reserve space for these elements by specifying their aspect ratio using the aspect-ratio property or by using a padding-bottom hack.
  3. Test your website to ensure the layout remains stable during loading.
  4. Monitor CLS to confirm the improvement in layout stability and user experience.

Outcome: By reserving space for images and embedded elements, your dental practice website will have a more stable layout, reducing CLS and providing a better user experience.

Example 2: Stabilizing Font Loading

Imagine your dental practice website uses custom fonts, which can cause layout shifts if they’re not loaded properly. This results in a high CLS and a frustrating experience for users.

Step-by-step solution:

  1. Identify the custom fonts used on your website and ensure they’re loaded efficiently using the font-display CSS property. Set it to ‘swap’ to minimize layout shifts.
  2. Consider using preload to load critical fonts earlier in the page load process.
  3. Test your website to ensure fonts load smoothly without causing layout shifts.
  4. Monitor CLS to verify the improvement in layout stability and user experience.

Outcome: By stabilizing font loading, your dental practice’s website will minimize layout shifts, reducing CLS and providing a more enjoyable browsing experience for potential patients.

Frequently Asked Questions

In this section, we’ll address some common questions about Core Web Vitals and their impact on your dental practice website.

How to measure Core Web Vitals?

Measuring Core Web Vitals is essential for understanding and optimizing your website’s performance. Here are some tools and steps to help you:

  1. Google’s PageSpeed Insights: Enter your website’s URL and analyze the report to check your Core Web Vitals scores.
  2. Chrome User Experience Report: Access real-user data to see how your site performs for actual visitors.
  3. Google Search Console: Check the Core Web Vitals report to monitor your site’s performance over time.
  4. Lighthouse: Use this tool to generate a comprehensive audit of your website’s performance, accessibility, and more.

Can improving Core Web Vitals lead to higher search rankings?

Yes, improving Core Web Vitals can lead to higher search rankings. Google considers page experience as a ranking factor, and Core Web Vitals is a crucial part of that. By optimizing your website’s performance based on Core Web Vitals, you can improve user experience and potentially boost your search rankings.

Are Core Web Vitals the only factor affecting website performance?

While Core Web Vitals are crucial for assessing your website’s performance, they’re not the only factors. Other aspects, such as mobile-friendliness, HTTPS usage, and intrusive interstitials, also affect your site’s performance and user experience. To fully optimize your website, it’s essential to address all these factors, not just Core Web Vitals.

Tools and Resources

To help you optimize your dental practice website, we’ve compiled a list of essential tools and resources. These tools will enable you to monitor, analyze, and improve your site’s performance based on Core Web Vitals and other essential factors.

Google Search Console

Google Search Console (GSC) is a must-have tool for tracking your website’s performance, identifying issues, and monitoring search rankings. Follow these steps to get started:

  1. Sign up for a free Google Search Console account.
  2. Verify your website’s ownership by following the provided instructions.
  3. Explore the dashboard, focusing on the Core Web Vitals report assessing your site’s performance.

PageSpeed Insights

PageSpeed Insights (PSI) is a fantastic tool for analyzing your website’s speed and identifying areas for improvement. Here’s how to use it:

  1. Visit the PageSpeed Insights page.
  2. Enter your website’s URL and click “Analyze.”
  3. Review the generated report, paying attention to the Core Web Vitals scores and suggested optimizations.


Lighthouse is a comprehensive auditing tool that analyzes your website’s performance, accessibility, and more. Follow these steps to audit your site:

  1. Install the Lighthouse extension for Google Chrome.
  2. Open your website in Chrome and click the Lighthouse icon.
  3. Click “Generate report” and wait for the analysis to finish.
  4. Review the audit results, focusing on the performance section for Core Web Vitals insights.

By using these tools, you’ll be better equipped to optimize your dental practice website and improve its performance, ultimately helping you rank higher on Google and provide a better user experience for your visitors.

Implementing Improvements

Optimizing your website for Core Web Vitals requires a systematic approach. In this section, we’ll guide you through prioritizing issues, collaborating with professionals, and monitoring progress.

Prioritizing Issues to Tackle

  1. Use tools like Google Search Console, PageSpeed Insights, and Lighthouse to identify areas for improvement.
  2. List down the issues and rank them by severity, considering both their impact on user experience and ease of implementation.
  3. Focus on fixing high-priority issues first, like addressing slow server response times or optimizing images.

Working with a Web Developer or an SEO Expert

  1. If you’re not confident in making the necessary changes yourself, consider hiring a web developer or an SEO expert.
  2. Communicate the identified issues and your desired improvements.
  3. Collaborate with them to develop an action plan and set milestones for implementation.

Monitoring Progress Over Time

  1. Regularly re-run tools like Google Search Console, PageSpeed Insights, and Lighthouse to track your website’s performance.
  2. Compare the new results with previous reports to measure the impact of your changes.
  3. Continuously iterate and optimize your website based on the insights you gather.

By following these steps, you’ll be able to systematically improve your website’s Core Web Vitals scores, leading to better user experience and potentially higher search rankings. Remember, optimization is an ongoing process, so keep monitoring and adjusting as needed.


In this comprehensive guide, we have highlighted the importance of Core Web Vitals as an essential aspect of improving your website’s user experience and search ranking potential. We’ve covered the three main pillars of Core Web Vitals: Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS), providing you with actionable insights and practical examples to optimize each metric.

Remember, optimizing your website’s performance is an ongoing process that requires continuous monitoring, assessment, and adaptation. Don’t hesitate to seek assistance from professionals if needed.

If you’re feeling overwhelmed or would like expert help in optimizing your website for Core Web Vitals, reach out to ProSites. Our team of skilled web developers and SEO experts will work with you to create a tailored strategy that addresses your unique challenges, ensuring your website performs at its best and achieves higher search rankings.

Take the first step towards improving your website’s performance by contacting ProSites today!