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79 reactjs.org Last Updated: 9 months

Success 62% of passed verification steps
Warning 15% of total warning
Errors 23% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 81%
Best Practices Desktop Score 93%
SEO Desktop Score 92%
Progressive Web App Desktop Score 70%
Performance Mobile Score 56%
Best Practices Mobile Score 93%
SEO Mobile Score 88%
Progressive Web App Mobile Score 71%
Page Authority Authority 66%
Domain Authority Domain Authority 85%
Moz Rank 6.6/10
Bounce Rate Rate 0%
Title Tag 57 Characters
REACT – A JAVASCRIPT LIBRARY FOR BUILDING USER INTERFACES
Meta Description 0 Characters
NO DATA
Effective URL 19 Characters
https://reactjs.org
Excerpt Page content
React – A JavaScript library for building user interfacesReactDocsTutorialBlogCommunityv16.13.1 LanguagesGitHubReactA JavaScript library for building user interfacesGet StartedTake the TutorialDeclarativeReact makes it painless to create interactive ...
Keywords Cloud Density
react11 state8 component8 code8 example7 data7 using5 render5 loading4 community4
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
react 11
state 8
component 8
code 8
example 7
data 7
using 5
render 5
loading 4
community 4
Google Preview Your look like this in google search result
REACT – A JAVASCRIPT LIBRARY FOR BUILDING USER INTERFACES
https://reactjs.org
React – A JavaScript library for building user interfacesReactDocsTutorialBlogCommunityv16.13.1 LanguagesGitHubReactA JavaScript library for building user interfacesGet StartedTake the TutorialDeclarativeReact makes it painless to create interactive ...
Robots.txt File Detected
Sitemap.xml File No Found
Whois Is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system
Updated: 2020-04-28 / 1 year
Create on: 2013-05-29 / 8 years
Expires on: 2022-05-29 / 11 months 10 days

MarkMonitor Inc. ,US
Registrar Whois Server: whois.markmonitor.com
Registrar URL: http://www.markmonitor.com

Nameservers
TINA.NS.CLOUDFLARE.COM
ANIRBAN.NS.CLOUDFLARE.COM
Page Size Code & Text Ratio
Document Size: ~70.67 KB
Code Size: ~32.81 KB
Text Size: ~37.87 KB Ratio: 53.58%

Social Data

Delicious Total: 0
Facebook Total: 14,497
Google Total: 0
Linkedin Total: 0
Pinterest Total: 0
Stumbleupon Total: 0
Tumblr Total: 0
Vk Total: 0

Estimation Traffic and Earnings

9,659
Unique Visits
Daily
17,869
Pages Views
Daily
$11
Income
Daily
270,452
Unique Visits
Monthly
509,267
Pages Views
Monthly
$275
Income
Monthly
3,129,516
Unique Visits
Yearly
6,003,984
Pages Views
Yearly
$2,904
Income
Yearly

Technologies

PWA - Manifest

React Docs React Docs React

The web app manifest is a simple JSON file that gives you, the developer, the ability to control how your app appears to the user in areas where they would expect to see apps (for example, a mobile device's home screen)
Param name
React Docs
Param short_name
React
Param lang
en
Param start_url
/
Param background_color
#20232a
Param theme_color
#20232a
Param display
standalone
Param cacheDigest
f4d46f030265b4c48a05c999b8d93791

Desktop

Desktop Screenshot
Initial server response time was short Root document took 100 ms
Keep the server response time for the main document short because all other requests depend on it
Avoid long main-thread tasks 2 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
JavaScript execution time 0.7 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Avoids enormous network payloads Total size was 585 KiB
Large network payloads cost users real money and are highly correlated with long load times
Minimizes main-thread work 0.9 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Avoid serving legacy JavaScript to modern browsers Potential savings of 18 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers
Uses efficient cache policy on static assets 1 resource found
A long cache lifetime can speed up repeat visits to your page
First Contentful Paint 0.8 s
First Contentful Paint marks the time at which the first text or image is painted
Remove unused JavaScript Potential savings of 101 KiB
Remove unused JavaScript to reduce bytes consumed by network activity
Speed Index 0.8 s
Speed Index shows how quickly the contents of a page are visibly populated
Max Potential First Input Delay 540 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Total Blocking Time 480 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Avoid an excessive DOM size 925 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)
Server Backend Latencies 0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance
Time to Interactive 1.9 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Avoids large JavaScript libraries with smaller alternatives 0 large libraries found
Large JavaScript libraries can lead to poor performance. Prefer smaller, functionally equivalent libraries to reduce your bundle size
Keep request counts low and transfer sizes small 32 requests • 585 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
Network Round Trip Times 0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
Estimated Input Latency 50 ms
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy
First Meaningful Paint 0.8 s
First Meaningful Paint measures when the primary content of a page is visible
First CPU Idle 1.7 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle/).
Largest Contentful Paint 0.8 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Reduce the impact of third-party code Third-party code blocked the main thread for 380 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading

Mobile

Mobile Screenshot
Reduce JavaScript execution time 4.1 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Avoids enormous network payloads Total size was 581 KiB
Large network payloads cost users real money and are highly correlated with long load times
Uses efficient cache policy on static assets 1 resource found
A long cache lifetime can speed up repeat visits to your page
First CPU Idle 8.5 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle/).
Total Blocking Time 3,650 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Avoid serving legacy JavaScript to modern browsers Potential savings of 18 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers
Avoid long main-thread tasks 10 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Largest Contentful Paint 3.0 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Server Backend Latencies 0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
Minimize main-thread work 5.7 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint (3G) 5550 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Tap targets are not sized appropriately 31% appropriately sized tap targets
Interactive elements like buttons and links should be large enough (48x48px), and have enough space around them, to be easy enough to tap without overlapping onto other elements
Keep request counts low and transfer sizes small 29 requests • 581 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
Speed Index 2.6 s
Speed Index shows how quickly the contents of a page are visibly populated
Avoid an excessive DOM size 925 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)
Time to Interactive 9.0 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Initial server response time was short Root document took 80 ms
Keep the server response time for the main document short because all other requests depend on it
Avoids large JavaScript libraries with smaller alternatives 0 large libraries found
Large JavaScript libraries can lead to poor performance. Prefer smaller, functionally equivalent libraries to reduce your bundle size
Estimated Input Latency 2,200 ms
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy
First Meaningful Paint 3.4 s
First Meaningful Paint measures when the primary content of a page is visible
Document uses legible font sizes 100% legible text
Font sizes less than 12px are too small to be legible and require mobile visitors to “pinch to zoom” in order to read. Strive to have >60% of page text ≥12px
First Contentful Paint 2.6 s
First Contentful Paint marks the time at which the first text or image is painted
Remove unused JavaScript Potential savings of 101 KiB
Remove unused JavaScript to reduce bytes consumed by network activity
Max Potential First Input Delay 3,230 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Network Round Trip Times 0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance
Reduce the impact of third-party code Third-party code blocked the main thread for 2,960 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading

Speed And Optimization Tips

Website speed has a huge impact on performance, affecting user experience, conversion rates and even rankings. ‪‬‬By reducing page load-times, users are less likely to get distracted and the search engines are more likely to reward you by ranking you
Title Website
Congratulations! Your title is optimized
Description Website
Warning! Your description is not optimized
Robots.txt
Congratulations! Your site have a robots.txt file
Sitemap.xml
Warning! Not found a sitemap file for your website
SSL Secure
Congratulations! Your site have Support to HTTPS
Headings
Congratulations! You are using your H1 and H2 tags in your site
Blacklist
Congratulations! Your site is not listed in a blacklist
W3C Validator
Warning! Your site have errors W3C
Accelerated Mobile Pages (AMP)
Warning! Your site not have AMP Version
Domain Authority
Congratulations! Your Domain Authority is good
GZIP Compress
Warning! Your site not is compressed, this can make slower response for the visitors
Favicon
Congratulations! Your website appears to have a favicon.
Broken Links
Congratulations! You not have broken links View links

Alexa Rank

10,177

Global Rank

6,544

India
Traffic
Search

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server
HTTP/2 200 
date: Thu, 24 Sep 2020 09:15:57 GMT
content-type: text/html; charset=UTF-8
content-length: 20276
set-cookie: __cfduid=db1d1d59d3308922f00c80199662edaf11600938957; expires=Sat, 24-Oct-20 09:15:57 GMT; path=/; domain=.reactjs.org; HttpOnly; SameSite=Lax
cache-control: public, max-age=0, must-revalidate
etag: "56bc03c00516cc038d33d21b08119f3a-ssl-df"
link: ; rel=preload; as=script, ; rel=preload; as=script, ; rel=preload; as=script, ; rel=preload; as=script, ; rel=preload; as=script, ; rel=preload; as=script, ; rel=preload; as=script, ; rel=preload; as=script, ; rel=preload; as=fetch; crossorigin, ; rel=preload; as=fetch; crossorigin
referrer-policy: same-origin
x-content-type-options: nosniff
x-frame-options: DENY
x-xss-protection: 1; mode=block
content-encoding: gzip
age: 55961
vary: Accept-Encoding
x-nf-request-id: 62a46787-8523-4ee8-bed1-605078a699d0-15908016
cf-cache-status: DYNAMIC
cf-request-id: 0560fef36d0000f99d6b3da200000001
expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
server: cloudflare
cf-ray: 5d7b67657dc7f99d-YYZ
DNS Records DNS Resource Records associated with a hostname
View DNS Records

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