Access teechart.net. Steema | Data visualisation specialists. Developer tools for .NET, Delphi & Javascript

name

value

score

weighting

FCP (First Contentful Paint)

Value7.1 s

1/100

10%

LCP (Largest Contentful Paint)

Value23.1 s

0/100

25%

SI (Speed Index)

Value14.1 s

1/100

10%

TBT (Total Blocking Time)

Value1,820 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value29.1 s

0/100

10%

teechart.net

194 ms

css

42 ms

css(1)

39 ms

buttons.css

28 ms

social-icons.css

27 ms

Our browser made a total of 128 requests to load all elements on the main page. We found that 90% of them (115 requests) were addressed to the original Teechart.net, 3% (4 requests) were made to Google.com and 2% (2 requests) were made to Cse.google.com. The less responsive or slowest element that took the longest time to load (927 ms) belongs to the original domain Teechart.net.

Content Size

4.3 MB

After Optimization

1.1 MB

In fact, the total size of Teechart.net main page is 4.3 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. 80% 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. Javascripts take 3.1 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 44.6 kB

Original 56.5 kB
After minification 41.5 kB
After compression 11.9 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. This page needs HTML code to be minified as it can gain 15.0 kB, which is 27% 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 44.6 kB or 79% of the original size.

Image Optimization

-81%

Potential reduce by 273.4 kB

Original 339.4 kB
After minification 66.0 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. Obviously, Teechart needs image optimization as it can save up to 273.4 kB or 81% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-71%

Potential reduce by 2.2 MB

Original 3.1 MB
After minification 3.0 MB
After compression 899.4 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 2.2 MB or 71% of the original size.

CSS Optimization

-86%

Potential reduce by 714.2 kB

Original 832.6 kB
After minification 686.6 kB
After compression 118.5 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. Teechart.net needs all CSS files to be minified and compressed as it can save up to 714.2 kB or 86% of the original size.

Requests Now

118

After Optimization

The browser has sent 118 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Teechart. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 63 to 1 for JavaScripts and from 26 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

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

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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

High

Image elements do not have [alt] attributes

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/).

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 Teechart.net 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 Teechart.net 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

teechart.net

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Steema | Data visualisation specialists. Developer tools for .NET, Delphi & Javascript

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

teechart.net

css

css(1)

buttons.css

social-icons.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

teechart.net

css

css(1)

buttons.css

social-icons.css

font-awesome.min.css

bootstrap.min.css

jslider.css

settings.css

jquery.fancybox.css

animate.css

video-js.min.css

morris.css

royalslider.css

rs-minimal-white.css

layerslider.css

ladda.min.css

datepicker.css

jquery.scrollbar.css

style.css

responsive.css

pages.css

pages-pages-customizer.css

style-child.css

ie.css

async-ads.js

cb=gapi.loaded_1

cb=gapi.loaded_0

www-widgetapi.js

recaptcha__en.js

iframe_api

jsapi

default+en.css

default.css

default+en.I.js

common.js

util.js

stats.js

AuthenticationService.Authenticate

cse.js

jquery.min.js

bootstrap.min.js

jshashtable-2.1_src.js