{"id":161225,"date":"2026-04-24T09:00:00","date_gmt":"2026-04-24T07:00:00","guid":{"rendered":"https:\/\/ommatic.de\/?p=161225"},"modified":"2026-04-23T11:04:30","modified_gmt":"2026-04-23T09:04:30","slug":"core-web-vitals-law-firm","status":"publish","type":"post","link":"https:\/\/ommatic.de\/en\/blog\/core-web-vitals-kanzlei\/","title":{"rendered":"Core Web Vitals for law firm websites: LCP, INP and CLS explained"},"content":{"rendered":"

Since 2021, Google has been evaluating all websites based on three user experience metrics, collectively known as Core Web Vitals. These metrics directly influence search engine rankings and help determine whether your law firm's website appears before or after its competitors in search results.<\/p>\n\n\n\n

\"Core<\/figure>\n\n\n\n

The unique aspect: Google doesn't measure how quickly your page loads in a lab test, but rather how real visitors actually experience your site. The measurement is based on the 75th percentile \u2013 meaning that 75% of your visitors must have a "good" experience for your page to be rated as good. This is particularly relevant for law firms that rely on mobile search queries and local visibility: Google primarily evaluates Core Web Vitals based on the mobile version of your website.<\/p>\n\n\n\n

This article explains what the three metrics mean, how to measure your values, and which specific actions will have the greatest impact. For the overall strategy, see our page. Web design for lawyers<\/a> as well as our contribution Mobile-first for law firms<\/a>.<\/p>\n\n\n\n

An overview of the three Core Web Vitals<\/h2>\n\n\n\n

All three metrics have defined thresholds that Google classifies as "good", "needs improvement" or "bad":<\/p>\n\n\n\n

Metric<\/strong><\/td>What is being measured<\/strong><\/td>Good<\/strong><\/td>Need for improvement<\/strong><\/td>Bad<\/strong><\/td><\/tr>
LCP<\/strong><\/td>Loading speed: When does the largest visible element appear?<\/td>< 2.5 s<\/td>2.5 \u2013 4.0 s<\/td>> 4.0 s<\/td><\/tr>
INP<\/strong><\/td>Interactivity: How quickly does the page respond to input?<\/td>< 200 ms<\/td>200 \u2013 500 ms<\/td>> 500 ms<\/td><\/tr>
CLS<\/strong><\/td>Visual stability: How much do elements shift during loading?<\/td>< 0.1<\/td>0.1 \u2013 0.25<\/td>> 0.25<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
Important: INP has replaced FID<\/strong>Since March 2024, Interaction to Next Paint (INP) has replaced the old metric First Input Delay (FID). INP measures not only the first interaction, but all clicks and inputs throughout the entire page visit \u2013 a significantly stricter standard.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

LCP \u2013 Largest Contentful Paint \u2013 measures how long it takes for the largest visible element of a page to fully load. This could be a header image, a block of text, or a video. Google considers LCP an indicator of perceived loading speed because it captures the moment when the visitor feels the page is ready.<\/p>\n\n\n\n

INP \u2013 Interaction to Next Paint \u2013 replaced the older First Input Delay (FID) in March 2024. While FID only measured the first interaction, INP evaluates every interaction throughout the entire page visit: every click, every input, every tap. This makes INP a significantly more rigorous measure of a page's responsiveness.<\/p>\n\n\n\n

CLS \u2013 Cumulative Layout Shift \u2013 measures whether page elements unexpectedly shift their position during loading. A typical example: A user wants to click on "Contact," but an image loads and moves the button \u2013 the click lands in the wrong place. CLS evaluates precisely this problem and is particularly relevant on mobile devices.<\/p>\n\n\n\n

What does "75th percentile" mean in Core Web Vitals?<\/h3>\n\n\n\n

Google does not evaluate the average, but rather the worst 25 page visits (%). <\/strong>The 75th percentile means that 75% of your visitors should have a "good" experience. The 25 slowest visitors should not consistently produce poor results. This is important because a fast desktop browser cannot compensate for the poor performance of a slow mobile device. Google Search Console displays these field values based on actual visitors.<\/p>\n\n\n\n

Does the ranking apply to mobile or desktop devices?<\/h3>\n\n\n\n

Google primarily evaluates the mobile version \u2013 Mobile-First Indexing has been fully active since 2023. <\/strong>PageSpeed Insights displays scores for both desktop and mobile versions, but the mobile score is crucial for ranking. A page with an excellent desktop score but a poor mobile score will be ranked lower by Google. Law firms looking to improve their Core Web Vitals should therefore always prioritize their mobile score.<\/p>\n\n\n\n

Is a good PageSpeed Insights result enough for good rankings?<\/h3>\n\n\n\n

PageSpeed score and Core Web Vitals are related, but not identical. <\/strong>The PageSpeed score (0\u2013100) is based on lab data and simulated conditions. Core Web Vitals in Google Search Console are based on real-world field data from CrUX. Field data is what determines ranking. A page can have a PageSpeed score of 90 and still have poor Core Web Vitals field scores if real users are accessing the page on slow devices or poor networks.<\/p>\n\n\n\n

How do you measure your Core Web Vitals?<\/h2>\n\n\n\n

For law firms that want to check their own website, there are three recommended free tools:<\/p>\n\n\n\n