Analyze

js.devexpress.com: DevExtreme - HTML5 JavaScript UI Widgets for Angular, Knockout and jQuery by DevExpress

HTML5 JavaScript Component Suite for Responsive Web Development

Page load speed analysis

  • 66/100

    Normal result
  • 5

    Successful tests
  • 3

    Failed tests
  • First response

    98 ms

  • Resources loaded

    1.2 sec

  • Page rendered

    316 ms

  • Total page load time

    1.6 sec

Click here to check amazing Js Dev Express content for China. Otherwise, check out these important facts you probably never knew about js.devexpress.com

We analyzed Js.devexpress.com page load time and found that the first response time was 98 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 25% of websites can load faster.

Page optimization

  • HTML 16.9 kB
    Images 2.0 MB
    Javascripts 271.8 kB
    CSS 0 B

    In fact, the total size of Js.devexpress.com main page is 2.3 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.0 MB which makes up the majority of the site volume.

    • Original 16.9 kB
    • After minification 14.8 kB
    • After compression 3.6 kB

    HTML optimization

    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. This page needs HTML code to be minified as it can gain 2.1 kB, which is 12% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 13.3 kB or 79% of the original size.

    • Original 2.0 MB

    Image optimization

    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. Js Dev Express images are well optimized though.

    • Original 271.8 kB
    • After minification 271.8 kB
    • After compression 83.9 kB

    JavaScript optimization

    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 187.9 kB or 69% of the original size.

Network requests diagram

  • js.devexpress.com
  • jquery-2.1.4.min.js
  • globalize.min.js
  • dx.webappjs.js
  • csslibs
  • lessBundle2
  • viewsLessBundle
  • bigLessBundle2
  • bigRetinaLessBundle2
  • whatsNewBundle
  • jsBundle2
  • api.js
  • ga.js
  • background.png
  • medal-gold.png
  • index_title_black.png
  • medal-gold-small.png
  • __utm.gif
  • collect
  • tracking.js

Our browser made a total of 20 requests to load all elements on the main page. We found that 65% of them (13 requests) were addressed to the original Js.devexpress.com, 15% (3 requests) were made to Google-analytics.com and 5% (1 request) were made to Ajax.aspnetcdn.com. The less responsive or slowest element that took the longest time to load (379 ms) relates to the external source Cdn3.devexpress.com.

Additional info on js.devexpress.com

Requests

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Js Dev Express. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

8

Javascripts

5

Images

5

CSS

18

All

Possible request optimization

1

Javascripts

5

Images

1

CSS

11

Optimized

7

All

Good result

IP address

Js.devexpress.com uses IP address which is currently shared with 4 other domains. The more sites share the same IP address, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Poor result

IP Trace

js.devexpress.com

testcafe.devexpress.com

community.devexpress.com

devexpress.com

phonejs.devexpress.com

66.55.147.30

DNS records

Type Host Target/ip TTL Other
A

nlb-dx.devexpress.com

66.55.147.30 3600
CNAME

js.devexpress.com

nlb-dx.devexpress.com 3600

Language and encoding

Normal result

Language

EN en language flag

Detected

N/A  language flag

Claimed

Encoding

UTF-8

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Js.devexpress.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Js.devexpress.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.

HTTPS certificate

SSL Certificate

Js.devexpress.com has a valid and up-to-date SSL certificate that expires on May 3, 2018.

Good result

Visitor World Map

Country of origin for 18.8% of all visits is China. It lies approximately 7220 miles away from the server location (United States) and such a long distance can negatively affect website speed, as it takes some time for data to travel back and forth between those places. That’s why one of the best ways to speed up Js.devexpress.com page load time for the majority of users is moving the server to China or just closer to the user base.

Poor result

Poor result

Social Sharing Optimization

Open Graph description is not detected on the main page of Js Dev Express. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks:

js.devexpress.com

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