1.7 sec in total
158 ms
1 sec
486 ms
Click here to check amazing Builder Book content for India. Otherwise, check out these important facts you probably never knew about builderbook.org
Our two books teach you how to build a web application with productive stack - React.js, Next.js, Material-UI, Express.js, Mongoose, MongoDB. You will also learn how to integrate third-party services ...
Visit builderbook.orgWe analyzed Builderbook.org page load time and found that the first response time was 158 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.
builderbook.org performance score
name
value
score
weighting
Value2.4 s
69/100
10%
Value2.5 s
90/100
25%
Value2.4 s
98/100
10%
Value200 ms
90/100
30%
Value0
100/100
15%
Value4.4 s
83/100
10%
158 ms
451 ms
28 ms
24 ms
57 ms
Our browser made a total of 19 requests to load all elements on the main page. We found that 42% of them (8 requests) were addressed to the original Builderbook.org, 16% (3 requests) were made to Storage.googleapis.com and 16% (3 requests) were made to D2w0479rccr6dx.cloudfront.net. The less responsive or slowest element that took the longest time to load (451 ms) belongs to the original domain Builderbook.org.
Page size can be reduced by 99.8 kB (21%)
468.5 kB
368.7 kB
In fact, the total size of Builderbook.org main page is 468.5 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 20% of websites need less resources to load. Images take 354.9 kB which makes up the majority of the site volume.
Potential reduce by 95.0 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 95.0 kB or 86% of the original size.
Potential reduce by 3.7 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Builder Book images are well optimized though.
Potential reduce by 32 B
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.
Potential reduce by 1.1 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Builderbook.org needs all CSS files to be minified and compressed as it can save up to 1.1 kB or 56% of the original size.
Number of requests can be reduced by 6 (35%)
17
11
The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Builder Book. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.
builderbook.org
158 ms
builderbook.org
451 ms
vs2015.min.css
28 ms
plausible.js
24 ms
nprogress-light-spinner.css
57 ms
github-btn.html
63 ms
sam-reaves-picture.jpeg
98 ms
29977869
39 ms
salie-lie-picture.jpg
185 ms
earllee-picture.jpg
288 ms
builderbook-logo.svg
8 ms
kelly-picture.png
36 ms
timur-picture.png
66 ms
polyfills-62c5ca9d57b4a62b381b.js
76 ms
index.js
144 ms
_app.js
208 ms
webpack-08f7b238829422e3b9b2.js
208 ms
commons.acfd3de9d72e3d07454b.js
398 ms
main-29d82fc5740c7eea8b7d.js
211 ms
builderbook.org accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Image elements do not have [alt] attributes
builderbook.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
builderbook.org SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Builderbook.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Builderbook.org main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
builderbook.org
Open Graph data is detected on the main page of Builder Book. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: