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tools.systemdynamics.org screenshot

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

tools.systemdynamics.org

System Dynamics Society | Home for Systems Thinkers and Modelers

Page Load Speed

3.7 sec in total

First Response

74 ms

Resources Loaded

2.5 sec

Page Rendered

1.1 sec

tools.systemdynamics.org screenshot

About Website

Welcome to tools.systemdynamics.org homepage info - get ready to check Tools System Dynamics best content for United States right away, or after learning these important things about tools.systemdynamics.org

The System Dynamics Society is a professional society that fosters and promotes training and research in the field of system dynamics.

Visit tools.systemdynamics.org

Key Findings

We analyzed Tools.systemdynamics.org page load time and found that the first response time was 74 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

tools.systemdynamics.org performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value11.7 s

0/100

25%

SI (Speed Index)

Value47.5 s

0/100

10%

TBT (Total Blocking Time)

Value42,860 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.223

56/100

15%

TTI (Time to Interactive)

Value57.1 s

0/100

10%

Network Requests Diagram

tools.systemdynamics.org

74 ms

systemdynamics.org

199 ms

css

313 ms

gximage2

422 ms

smush-lazy-load-native.min.js

86 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Tools.systemdynamics.org, 77% (57 requests) were made to Fonts.gstatic.com and 16% (12 requests) were made to Systemdynamics.org. The less responsive or slowest element that took the longest time to load (921 ms) relates to the external source Fonts.gstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 408.4 kB (85%)

Content Size

481.4 kB

After Optimization

73.1 kB

  • HTML
  • Images

In fact, the total size of Tools.systemdynamics.org main page is 481.4 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. 70% of websites need less resources to load. HTML takes 472.9 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 408.4 kB

  • Original 472.9 kB
  • After minification 465.3 kB
  • After compression 64.5 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 408.4 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 8.5 kB
  • After minification 8.5 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. Tools System Dynamics images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tools System Dynamics. According to our analytics all requests are already optimized.

Network Requests Diagram

tools.systemdynamics.org

tools.systemdynamics.org

74 ms

systemdynamics.org

systemdynamics.org

199 ms

css

css

313 ms

gximage2

gximage2

422 ms

smush-lazy-load-native.min.js

smush-lazy-load-native.min.js

86 ms

en.png

en.png

574 ms

new-logo.jpg

new-logo.jpg

752 ms

Roboto-Medium.woff

Roboto-Medium.woff

112 ms

KFOlCnqEu92Fr1MmEU9fChc-.woff

KFOlCnqEu92Fr1MmEU9fChc-.woff

452 ms

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KFOlCnqEu92Fr1MmEU9fChc9.ttf

491 ms

Roboto-Regular.woff

Roboto-Regular.woff

217 ms

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572 ms

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669 ms

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671 ms

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676 ms

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671 ms

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700 ms

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215 ms

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666 ms

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677 ms

Roboto-Black.woff

Roboto-Black.woff

218 ms

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675 ms

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675 ms

WPMenuCart.woff

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214 ms

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673 ms

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921 ms

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680 ms

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KFOkCnqEu92Fr1Mu51xGIzc.ttf

681 ms

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679 ms

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KFOjCnqEu92Fr1Mu51TjASc0CsE.ttf

678 ms

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685 ms

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683 ms

KFOjCnqEu92Fr1Mu51TzBic0CsI.woff

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682 ms

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684 ms

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KFOjCnqEu92Fr1Mu51TLBCc0CsI.woff

685 ms

KFOjCnqEu92Fr1Mu51TLBCc0CsE.ttf

KFOjCnqEu92Fr1Mu51TLBCc0CsE.ttf

689 ms

modules.ttf

modules.ttf

210 ms

Nunito-Regular.woff

Nunito-Regular.woff

215 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDLshdTo3iQ.woff

XRXI3I6Li01BKofiOc5wtlZ2di8HDLshdTo3iQ.woff

686 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDLshdTo3ig.ttf

XRXI3I6Li01BKofiOc5wtlZ2di8HDLshdTo3ig.ttf

687 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDOUhdTo3iQ.woff

XRXI3I6Li01BKofiOc5wtlZ2di8HDOUhdTo3iQ.woff

688 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDOUhdTo3ig.ttf

XRXI3I6Li01BKofiOc5wtlZ2di8HDOUhdTo3ig.ttf

692 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDDshdTo3iQ.woff

XRXI3I6Li01BKofiOc5wtlZ2di8HDDshdTo3iQ.woff

688 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDDshdTo3ig.ttf

XRXI3I6Li01BKofiOc5wtlZ2di8HDDshdTo3ig.ttf

744 ms

Nunito-SemiBold.woff

Nunito-SemiBold.woff

320 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDGUmdTo3iQ.woff

XRXI3I6Li01BKofiOc5wtlZ2di8HDGUmdTo3iQ.woff

690 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDGUmdTo3ig.ttf

XRXI3I6Li01BKofiOc5wtlZ2di8HDGUmdTo3ig.ttf

690 ms

Nunito-Bold.woff

Nunito-Bold.woff

358 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDFwmdTo3iQ.woff

XRXI3I6Li01BKofiOc5wtlZ2di8HDFwmdTo3iQ.woff

692 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDFwmdTo3ig.ttf

XRXI3I6Li01BKofiOc5wtlZ2di8HDFwmdTo3ig.ttf

693 ms

Nunito-ExtraBold.woff

Nunito-ExtraBold.woff

440 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDDsmdTo3iQ.woff

XRXI3I6Li01BKofiOc5wtlZ2di8HDDsmdTo3iQ.woff

692 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDDsmdTo3ig.ttf

XRXI3I6Li01BKofiOc5wtlZ2di8HDDsmdTo3ig.ttf

754 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDBImdTo3iQ.woff

XRXI3I6Li01BKofiOc5wtlZ2di8HDBImdTo3iQ.woff

254 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDBImdTo3ig.ttf

XRXI3I6Li01BKofiOc5wtlZ2di8HDBImdTo3ig.ttf

202 ms

pxiByp8kv8JHgFVrLEj6Z1JlEw.woff

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80 ms

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79 ms

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80 ms

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80 ms

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77 ms

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82 ms

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78 ms

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78 ms

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pxiByp8kv8JHgFVrLGT9Z1JlEw.woff

79 ms

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74 ms

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77 ms

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77 ms

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76 ms

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73 ms

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75 ms

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75 ms

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78 ms

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75 ms

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memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

75 ms

Accessibility Review

tools.systemdynamics.org accessibility score

88

Accessibility Issues

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

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

tools.systemdynamics.org best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

tools.systemdynamics.org SEO score

79

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

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

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 Tools.systemdynamics.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 Tools.systemdynamics.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.

Social Sharing Optimization

tools.systemdynamics.org

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