Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    34% of websites

  • 89

    SEO

    Google-friendlier than
    72% of websites

lean-production.org

Lean Games - Get Started with the Lean Manufacturing Game

Page Load Speed

17.9 sec in total

First Response

459 ms

Resources Loaded

11.7 sec

Page Rendered

5.7 sec

lean-production.org screenshot

About Website

Welcome to lean-production.org homepage info - get ready to check Lean Production best content right away, or after learning these important things about lean-production.org

The Lean Factory Game let's you simulate and play a Lean Factory with your hands. Teach Lean based on Gamification. For up to 8 Players.

Visit lean-production.org

Key Findings

We analyzed Lean-production.org page load time and found that the first response time was 459 ms and then it took 17.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

lean-production.org performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

30/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value1,870 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0.042

99/100

15%

TTI (Time to Interactive)

Value11.2 s

19/100

10%

Network Requests Diagram

lean-production.org

459 ms

leanactivity.com

2859 ms

fbevents.js

207 ms

wp-emoji-release.min.js

498 ms

style.min.css

487 ms

Our browser made a total of 144 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Lean-production.org, 70% (101 requests) were made to Leanactivity.com and 9% (13 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.9 sec) relates to the external source Leanactivity.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.5 MB (43%)

Content Size

3.5 MB

After Optimization

2.0 MB

In fact, the total size of Lean-production.org main page is 3.5 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. 85% 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 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 216.6 kB

  • Original 264.9 kB
  • After minification 250.9 kB
  • After compression 48.4 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 216.6 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 1.7 MB
  • After minification 1.7 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. Lean Production images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 139.9 kB

  • Original 203.8 kB
  • After minification 168.8 kB
  • After compression 63.8 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 139.9 kB or 69% of the original size.

CSS Optimization

-87%

Potential reduce by 1.1 MB

  • Original 1.3 MB
  • After minification 1.1 MB
  • After compression 168.7 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. Lean-production.org needs all CSS files to be minified and compressed as it can save up to 1.1 MB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 72 (59%)

Requests Now

123

After Optimization

51

The browser has sent 123 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lean Production. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 30 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

lean-production.org accessibility score

91

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.

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

High

Links do not have a discernible name

Best Practices

lean-production.org best practices score

67

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

Displays images with incorrect aspect ratio

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

lean-production.org SEO score

89

Search Engine Optimization Advices

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

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 Lean-production.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 Lean-production.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

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