Web Vitals
Google, Mountain View, California, United StatesThe Web Vitals library is a lightweight 
JavaScript library for measuring Core Web Vitals and related performance metrics on real users in the browser.
It is a modular package of about 2 KB that exposes functions for metrics such as CLS, LCP, INP, FCP, and TTFB, uses the PerformanceObserver API with buffered entries to capture data even after page load, and supports integration with 
Google Analytics and 
Google Tag Manager.
According to our data, Web Vitals ranks 103th among the JavaScript libraries we track.
It has 0.4% of the JavaScript library market share and is detected on 0.3% of all websites.
GitHub💸 Pricing
Web Vitals is available for free.
📊 Rankings and Market Share
- JavaScript Libraries
- Rank: 103
- Market share: 0.4%
- Application Monitoring
- Rank: 5
- Market share: 7%
- SEO
- Rank: 6
- Market share: 1.2%
🏆 Web Vitals Awards
- 🥇 Most popular in Indonesia in the Application Monitoring category.
- 🥇 Most popular in Argentina in the Application Monitoring category.
- 🥈 Second most popular in Indonesia in the SEO category.
- 🥈 Second most popular in Argentina in the SEO category.
- 🥈 Second most popular in Singapore in the Application Monitoring category.
- 🥉 Third most popular in Brazil in the Application Monitoring category.
- 🥉 Third most popular in Poland in the Application Monitoring category.
- ⭐ 4th most popular in Brazil in the SEO category.
- ⭐ 4th most popular in Singapore in the SEO category.
- ⭐ 4th most popular in Italy in the Application Monitoring category.
⚡ Sites Using Web Vitals
We have data on 9,512 websites that use the Web Vitals JavaScript library. Here is a list of some of the top ranked ones.
The highest rated site using Web Vitals is interia.pl.
| # | Website | Rank | Country | Language |
|---|---|---|---|---|
| 1 | #392 | Poland | Polish | |
| 2 | #578 | India | American English | |
| 3 | #656 | France | English | |
| 4 | #1,185 | India | English | |
| 5 |  ubereats.com |
#1,305 | United States | American English |
| 6 | #1,310 | United States | English | |
| 7 | #1,753 | Italy | Italian | |
| 8 | #1,885 | Austria | German | |
| 9 | #1,972 | Poland | Polish | |
| 10 | #2,110 | Sweden | Swedish | |
| 11 | #2,241 | China | English | |
| 12 | #2,441 | Germany | German | |
| 13 | #2,678 | United States | English | |
| 14 | #2,702 | English | ||
| 15 | #2,716 | United States | English | |
| 16 | #2,719 | India | English | |
| 17 | #2,748 | Italy | Italian | |
| 18 | #2,787 | English | ||
| 19 | #2,886 | United States | English | |
| 20 | #2,958 | United States | English |
📈 Usage Statistics
Most of the sites that use Web Vitals:
- are located in the United States
- have content in English
- use the .com domain extension
- fall into the Online Shopping category.
Most of the sites using Web Vitals are from the United States, Indonesia, and Brazil.
- United States 28.9%
- Indonesia 23.1%
- Brazil 7%
- Argentina 6.2%
- United Kingdom 3.7%
- Singapore 2.7%
- Germany 2.2%
- Italy 1.8%
- France 1.7%
- Other 22.7%
Most Web Vitals users speak English, Indonesian, or Spanish.
- English 38.7%
- Indonesian 33%
- Spanish 8.4%
- Portuguese 6.3%
- German 2%
- Italian 1.6%
- French 1.4%
- Polish 1.1%
- Malay 0.9%
- Other 6.6%
The Web Vitals JavaScript library is especially popular on .com, .org, and .com.br top-level domains.
- .com 58%
- .org 6.8%
- .com.br 5.4%
- .com.ar 4.2%
- .net 3.9%
- .co.uk 1.5%
- .de 1.2%
- .it 1.1%
- .pl 1%
- Other 16.9%
The primary market segments for websites utilizing Web Vitals include online shopping, business, and motor vehicles.
- Online Shopping 14.4%
- Business 12.4%
- Motor Vehicles 11.4%
- Marketing/Merchandising 10.4%
- Blogs/Wiki 7.4%
- Internet Services 4.1%
- Education/Reference 3.5%
- General News 3.4%
- Fashion/Beauty 3.4%
- Other 29.6%
🔢 Web Vitals Versions
The most popular version of Web Vitals is 3.5, used by 61.1% of sites where versions were detected. In addition, 12% of sites use Web Vitals 3, and 8.4% use Web Vitals 5.0.
- 3.5 61.1%
- 3 12%
- 5.0 8.4%
- 3.1 4.6%
- 0.2 3.6%
- 4 3.2%
- 4.2 2.5%
- 2.1 1.3%
- 4.0 0.7%
- Other 2.6%
🕵️ Similar Technologies
These are some of the best Web Vitals alternatives.
🆚 Compare Alternatives
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💬 Frequently Asked Questions
What is the company behind Web Vitals?
Web Vitals is owned by Google LLC, headquartered in Mountain View, California, United States.
Can I use Web Vitals for free?
Yes, it is a free JavaScript library.
Which country uses Web Vitals the most?
The majority of Web Vitals users are from the United States.
Who uses Web Vitals?
According to our data, Web Vitals is used on thousands of sites, including such established ones as interia.pl,
goodreturns.in, and
boardgamearena.com.
Is Web Vitals used on government websites?
In total, we found Web Vitals on 4 government sites in the United States.
Do academic institutions use Web Vitals?
Yes. The most prominent of these is cmu.edu. Overall, we know of 7 academic websites in the United States that use Web Vitals.
How does Web Vitals compare to the competition?
Web Vitals is a moderately popular JavaScript library, ranking ahead of 209 other JavaScript libraries we track.
What are the alternatives to Web Vitals?
Alternatives and possible competitors to Web Vitals may include 
Akamai mPulse, 
Datadog, and AEM RUM.
👉 See Also
🗃️ About This Data
- We evaluate the popularity of technologies based on the number of websites where we detect their usage.
- Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
- This report is based on the analysis of 3,619,357 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.