Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

freecadweb.org

FreeCAD: Your own 3D parametric modeler

Page Load Speed

4.6 sec in total

First Response

304 ms

Resources Loaded

3.5 sec

Page Rendered

789 ms

freecadweb.org screenshot

About Website

Visit freecadweb.org now to see the best up-to-date FreeCAD Web content for China and also check out these interesting facts you probably never knew about freecadweb.org

FreeCAD, the open source 3D parametric modeler

Visit freecadweb.org

Key Findings

We analyzed Freecadweb.org page load time and found that the first response time was 304 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

freecadweb.org performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

10/100

10%

LCP (Largest Contentful Paint)

Value7.5 s

4/100

25%

SI (Speed Index)

Value5.6 s

53/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.47

18/100

15%

TTI (Time to Interactive)

Value8.3 s

40/100

10%

Network Requests Diagram

freecadweb.org

304 ms

freecadweb.org

373 ms

www.freecadweb.org

274 ms

www.freecadweb.org

395 ms

www.freecad.org

439 ms

Our browser made a total of 78 requests to load all elements on the main page. We found that 5% of them (4 requests) were addressed to the original Freecadweb.org, 94% (73 requests) were made to Freecad.org and 1% (1 request) were made to Opensource.nyc3.cdn.digitaloceanspaces.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Freecad.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 321.0 kB (14%)

Content Size

2.2 MB

After Optimization

1.9 MB

In fact, the total size of Freecadweb.org main page is 2.2 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. 30% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 16.0 kB

  • Original 20.3 kB
  • After minification 18.1 kB
  • After compression 4.3 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 2.2 kB, which is 11% 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 16.0 kB or 79% of the original size.

Image Optimization

-3%

Potential reduce by 55.4 kB

  • Original 1.9 MB
  • After minification 1.8 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. FreeCAD Web images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 112.7 kB

  • Original 166.0 kB
  • After minification 166.0 kB
  • After compression 53.3 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 112.7 kB or 68% of the original size.

CSS Optimization

-85%

Potential reduce by 137.0 kB

  • Original 161.4 kB
  • After minification 159.9 kB
  • After compression 24.4 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. Freecadweb.org needs all CSS files to be minified and compressed as it can save up to 137.0 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 40 (58%)

Requests Now

69

After Optimization

29

The browser has sent 69 CSS, Javascripts, AJAX and image requests in order to completely render the main page of FreeCAD Web. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Review

freecadweb.org accessibility score

85

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.

Internationalization and localization

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

Impact

Issue

High

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

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

freecadweb.org best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

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

Page has valid source maps

SEO Factors

freecadweb.org SEO score

77

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Freecadweb.org 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 Freecadweb.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 data is detected on the main page of FreeCAD Web. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: