Tools & Wizards About Us
highcharts.com screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 96

    SEO

    Google-friendlier than
    91% of websites

highcharts.com

Interactive charting library | Highcharts

Page Load Speed

47.8 sec in total

First Response

861 ms

Resources Loaded

23.2 sec

Page Rendered

23.7 sec

highcharts.com screenshot

About Website

Visit highcharts.com now to see the best up-to-date Highcharts content for India and also check out these interesting facts you probably never knew about highcharts.com

Create interactive data visualization for web and mobile projects with Highcharts core, Highcharts Stock, Highcharts Maps, Highcharts Dashboards, and Highcharts Gantt, using Angular, React, Python, R,...

Visit highcharts.com

Key Findings

We analyzed Highcharts.com page load time and found that the first response time was 861 ms and then it took 47 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

highcharts.com performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.0 s

4/100

10%

LCP (Largest Contentful Paint)

Value6.3 s

10/100

25%

SI (Speed Index)

Value23.9 s

0/100

10%

TBT (Total Blocking Time)

Value24,890 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.074

95/100

15%

TTI (Time to Interactive)

Value39.2 s

0/100

10%

Network Requests Diagram

www.highcharts.com

861 ms

bootstrap.min.css

638 ms

source-sans-pro.css

896 ms

font-awesome.css

1423 ms

template.css

1486 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 73% of them (41 requests) were addressed to the original Highcharts.com, 11% (6 requests) were made to Fonts.gstatic.com and 5% (3 requests) were made to Code.highcharts.com. The less responsive or slowest element that took the longest time to load (7.2 sec) relates to the external source Fonts.gstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (35%)

Content Size

3.7 MB

After Optimization

2.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Highcharts.com main page is 3.7 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. Images take 2.0 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 78.0 kB

  • Original 96.0 kB
  • After minification 93.6 kB
  • After compression 18.0 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 78.0 kB or 81% of the original size.

Image Optimization

-3%

Potential reduce by 56.9 kB

  • Original 2.0 MB
  • After minification 1.9 MB

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. Highcharts images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 880.3 kB

  • Original 1.3 MB
  • After minification 1.1 MB
  • After compression 371.4 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 880.3 kB or 70% of the original size.

CSS Optimization

-83%

Potential reduce by 284.7 kB

  • Original 341.4 kB
  • After minification 311.9 kB
  • After compression 56.7 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. Highcharts.com needs all CSS files to be minified and compressed as it can save up to 284.7 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (40%)

Requests Now

48

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Highcharts. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.highcharts.com

www.highcharts.com

861 ms

bootstrap.min.css

bootstrap.min.css

638 ms

source-sans-pro.css

source-sans-pro.css

896 ms

font-awesome.css

font-awesome.css

1423 ms

template.css

template.css

1486 ms

jquery-3.1.1.js

jquery-3.1.1.js

1631 ms

bootstrap.js

bootstrap.js

1629 ms

modernizr.js

modernizr.js

2319 ms

script.js

script.js

2319 ms

jquery.appear.min.js

jquery.appear.min.js

2321 ms

tweets.min.js

tweets.min.js

2321 ms

highstock.js

highstock.js

2408 ms

exporting.js

exporting.js

3349 ms

map.js

map.js

3376 ms

world.min.js

world.min.js

2317 ms

demos.js

demos.js

2317 ms

css

css

2371 ms

css

css

2372 ms

covervid.js

covervid.js

2316 ms

fullscreen.js

fullscreen.js

2316 ms

Highcharts

Highcharts

2371 ms

analytics.js

analytics.js

4992 ms

logo.svg

logo.svg

246 ms

bg-fallback-optim.jpg

bg-fallback-optim.jpg

4680 ms

logo.svg

logo.svg

4612 ms

facebook.png

facebook.png

4678 ms

twitter.png

twitter.png

4679 ms

yahoo.png

yahoo.png

4678 ms

visa.png

visa.png

4593 ms

groupon.png

groupon.png

4640 ms

nokia.png

nokia.png

4642 ms

mastercard.png

mastercard.png

4642 ms

citi.png

citi.png

4721 ms

ericsson.png

ericsson.png

4721 ms

verizon.png

verizon.png

4720 ms

att.png

att.png

4720 ms

yandex.png

yandex.png

4721 ms

petrobas.png

petrobas.png

4720 ms

ipad-hand-banner-600x382-optim.jpg

ipad-hand-banner-600x382-optim.jpg

4721 ms

hc-tablet-hands-1024-570-optim.png

hc-tablet-hands-1024-570-optim.png

4843 ms

hc-tablet-hands-horizontal-976x569-optim.png

hc-tablet-hands-horizontal-976x569-optim.png

4843 ms

ge-healthcare.png

ge-healthcare.png

4843 ms

1-book.jpg

1-book.jpg

4720 ms

support-icon.png

support-icon.png

4842 ms

download-icon.png

download-icon.png

4842 ms

zN7GBFwfMP4uA6AR0HCoLQ.ttf

zN7GBFwfMP4uA6AR0HCoLQ.ttf

7212 ms

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

7147 ms

Hgo13k-tfSpn0qi1SFdUfaCWcynf_cDxXwCLxiixG1c.ttf

Hgo13k-tfSpn0qi1SFdUfaCWcynf_cDxXwCLxiixG1c.ttf

7145 ms

Jzo62I39jc0gQRrbndN6nfesZW2xOQ-xsNqO47m55DA.ttf

Jzo62I39jc0gQRrbndN6nfesZW2xOQ-xsNqO47m55DA.ttf

7147 ms

d-6IYplOFocCacKzxwXSOKCWcynf_cDxXwCLxiixG1c.ttf

d-6IYplOFocCacKzxwXSOKCWcynf_cDxXwCLxiixG1c.ttf

7147 ms

mnpfi9pxYH-Go5UiibESIqCWcynf_cDxXwCLxiixG1c.ttf

mnpfi9pxYH-Go5UiibESIqCWcynf_cDxXwCLxiixG1c.ttf

7146 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1070 ms

collect

collect

6106 ms

buzzboost-pwrd.gif

buzzboost-pwrd.gif

6964 ms

jsonp.php

jsonp.php

2853 ms

jsonp.php

jsonp.php

998 ms

Accessibility Review

highcharts.com accessibility score

81

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

ARIA IDs are not unique

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

Form elements do not have associated labels

Best Practices

highcharts.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

highcharts.com SEO score

96

Search Engine Optimization Advices

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

    N/A

  • Encoding

    UTF-8

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

highcharts.com

Open Graph description is not detected on the main page of Highcharts. 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: