PerformanceObserver
W3C, Cambridge, Massachusetts, United StatesPerformanceObserver is a part of the Performance API that is used to monitor performance measurement events.
According to our data, PerformanceObserver is the 7th most popular browser API on the web.
It has 2.1% of the browser API market share and is detected on 0.7% of all websites.
It appears on 1.4% of all websites in Australia, 1.3% in the United States, and 1.1% in the United Kingdom.
MDN📊 Rankings and Market Share
- Browser APIs
- Rank: 7
- Market share: 2.1%
🏆 PerformanceObserver Awards
- ⭐ 6th most popular in the United States in the Browser APIs category.
- ⭐ 6th most popular in Australia in the Browser APIs category.
- ⭐ 6th most popular in India in the Browser APIs category.
- ⭐ 6th most popular in Brazil in the Browser APIs category.
- ⭐ 6th most popular in Spain in the Browser APIs category.
- ⭐ 6th most popular in the United Arab Emirates in the Browser APIs category.
- ⭐ 6th most popular in Mexico in the Browser APIs category.
- ⭐ 6th most popular in South Africa in the Browser APIs category.
- ⭐ 6th most popular in Israel in the Browser APIs category.
- ⭐ 6th most popular in Argentina in the Browser APIs category.
⚡ Sites Using PerformanceObserver
We have data on 29,717 websites that use the PerformanceObserver browser API. Here is a list of some of the top ranked ones.
The highest rated site using PerformanceObserver is 
apple.com.
| # | Website | Rank | Country | Language |
|---|---|---|---|---|
| 1 | apple.com |
#8 | United States | American English |
| 2 |  bing.com |
#16 | United States | English |
| 3 | #63 | United States | English | |
| 4 | #119 | Russia | Russian | |
| 5 |  etsy.com |
#130 | United States | American English |
| 6 | #149 | United States | English | |
| 7 | #152 | Germany | American English | |
| 8 |  vk.ru |
#154 | Russia | English |
| 9 |  usatoday.com |
#170 | American English | |
| 10 |  avito.ru |
#217 | Russia | Russian |
| 11 |  yandex.com |
#256 | Russia | English |
| 12 | #291 | Japan | Japanese | |
| 13 | #303 | United States | American English | |
| 14 |  behance.net |
#307 | United States | American English |
| 15 | #316 | Japan | Japanese | |
| 16 | itunes.apple.com |
United States | American English | |
| 17 | #337 | United States | American English | |
| 18 | #339 | United States | American English | |
| 19 |  uber.com |
#343 | United States | English |
| 20 | #360 | American English |
📈 Usage Statistics
Most of the sites that use PerformanceObserver:
- are located in the United States
- have content in English
- use the .com domain extension
- fall into the Business category.
Most of the sites using PerformanceObserver are from the United States, the United Kingdom, and Australia.
- United States 37.6%
- United Kingdom 8.5%
- Australia 5%
- Netherlands 3.9%
- India 3.3%
- Germany 3.1%
- Japan 3%
- Canada 2.8%
- France 2.7%
- Other 30.1%
Most PerformanceObserver users speak English or Spanish.
- English 72.6%
- Spanish 3.8%
- Dutch 2.8%
- German 2.8%
- French 2.6%
- Japanese 2.4%
- Portuguese 2.2%
- Italian 1.3%
- Polish 0.9%
- Other 8.6%
The PerformanceObserver browser API is especially popular on .com and .org top-level domains.
- .com 54.8%
- .org 6.7%
- .co.uk 3.3%
- .com.au 3%
- .nl 2%
- .de 1.8%
- .net 1.7%
- .com.br 1.6%
- .ca 1.3%
- Other 23.8%
The primary market segments for websites utilizing PerformanceObserver include business, online shopping, and marketing and merchandising.
- Business 17.2%
- Online Shopping 15.3%
- Marketing/Merchandising 11.7%
- Education/Reference 4.9%
- Travel 4.3%
- Internet Services 4.2%
- Health 4%
- General News 3.9%
- Fashion/Beauty 3.6%
- Other 30.9%
🕵️ Similar Technologies
These are some of the best PerformanceObserver alternatives.
🆚 Compare Alternatives
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💬 Frequently Asked Questions
What is the company behind PerformanceObserver?
PerformanceObserver is owned by World Wide Web Consortium, Inc., headquartered in Cambridge, Massachusetts, United States.
Which country uses PerformanceObserver the most?
The majority of PerformanceObserver users are from the United States.
Who uses PerformanceObserver?
According to our data, PerformanceObserver is used on thousands of sites, including such established ones as apple.com, bing.com, and forbes.com.
Is PerformanceObserver used on government websites?
Overall, we found PerformanceObserver on 48 government sites in the United States.
Do academic institutions use PerformanceObserver?
Yes, quite a few! In total, we know of 152 academic websites in the United States that use PerformanceObserver.
How does PerformanceObserver stack up against its competitors?
PerformanceObserver is a moderately popular browser API, ranking ahead of 11 other browser APIs we track.
What are the alternatives to PerformanceObserver?
Alternatives and possible competitors to PerformanceObserver may include Navigation Timing, Web Storage, and 
Fetch.
👉 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 4,009,087 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.