Report Summary

  • 0

    Performance

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

kendoui.com

JavaScript UI Components - Build Better Apps Faster - Progress Kendo UI

Page Load Speed

6.1 sec in total

First Response

143 ms

Resources Loaded

5.1 sec

Page Rendered

904 ms

kendoui.com screenshot

About Website

Click here to check amazing Kendo UI content. Otherwise, check out these important facts you probably never knew about kendoui.com

Quickly build eye-catching web apps using Kendo UI's ultimate collection of JavaScript UI components with libraries for jQuery, Angular, React, and Vue.

Visit kendoui.com

Key Findings

We analyzed Kendoui.com page load time and found that the first response time was 143 ms and then it took 6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

kendoui.com performance score

0

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value0

0/100

25%

SI (Speed Index)

Value0

0/100

10%

TBT (Total Blocking Time)

Value820 ms

35/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.2 s

50/100

10%

Network Requests Diagram

kendo-ui

143 ms

kendo-ui

1856 ms

gtm.js

69 ms

emmet.min.js

221 ms

2380340583.js

210 ms

Our browser made a total of 124 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Kendoui.com, 11% (14 requests) were made to D585tldpucybw.cloudfront.net and 9% (11 requests) were made to D6vtbcy3ong79.cloudfront.net. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Telerik.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.7 MB (67%)

Content Size

2.6 MB

After Optimization

860.7 kB

In fact, the total size of Kendoui.com main page is 2.6 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 70% of websites need less resources to load. Javascripts take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 370.4 kB

  • Original 450.3 kB
  • After minification 445.7 kB
  • After compression 79.8 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 370.4 kB or 82% of the original size.

Image Optimization

-4%

Potential reduce by 10.6 kB

  • Original 267.4 kB
  • After minification 256.8 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. Kendo UI images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 931.4 kB

  • Original 1.4 MB
  • After minification 1.4 MB
  • After compression 437.2 kB

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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 931.4 kB or 68% of the original size.

CSS Optimization

-82%

Potential reduce by 397.7 kB

  • Original 484.6 kB
  • After minification 482.0 kB
  • After compression 86.9 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. Kendoui.com needs all CSS files to be minified and compressed as it can save up to 397.7 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 65 (60%)

Requests Now

108

After Optimization

43

The browser has sent 108 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kendo UI. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 41 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

kendoui.com accessibility score

79

Accessibility Issues

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

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

kendoui.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

kendoui.com SEO score

83

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kendoui.com 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 Kendoui.com 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.

Social Sharing Optimization

Open Graph data is detected on the main page of Kendo UI. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: