Report Summary

  • 51

    Performance

    Renders faster than
    70% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

freecadweb.org

FreeCAD: Your own 3D parametric modeler

Page Load Speed

2.6 sec in total

First Response

297 ms

Resources Loaded

2.1 sec

Page Rendered

229 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 297 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

freecadweb.org performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

26/100

10%

LCP (Largest Contentful Paint)

Value8.7 s

1/100

25%

SI (Speed Index)

Value4.6 s

71/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.396

25/100

15%

TTI (Time to Interactive)

Value5.1 s

75/100

10%

Network Requests Diagram

freecadweb.org

297 ms

bootstrap-3.3.5.min.css

520 ms

font-awesome-4.4.0.min.css

288 ms

freecad.css

197 ms

jquery-2.1.4.min.js

482 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that all of those requests were addressed to Freecadweb.org and no external sources were called. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Freecadweb.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 224.5 kB (43%)

Content Size

516.8 kB

After Optimization

292.3 kB

In fact, the total size of Freecadweb.org main page is 516.8 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. 15% of websites need less resources to load. Images take 231.3 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 8.0 kB

  • Original 10.6 kB
  • After minification 7.5 kB
  • After compression 2.6 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 3.1 kB, which is 30% 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 8.0 kB or 75% of the original size.

Image Optimization

-4%

Potential reduce by 8.2 kB

  • Original 231.3 kB
  • After minification 223.1 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. FreeCAD Web images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 81.7 kB

  • Original 121.2 kB
  • After minification 121.2 kB
  • After compression 39.5 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 81.7 kB or 67% of the original size.

CSS Optimization

-82%

Potential reduce by 126.7 kB

  • Original 153.8 kB
  • After minification 152.6 kB
  • After compression 27.1 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 126.7 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (67%)

Requests Now

36

After Optimization

12

The browser has sent 36 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

87

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

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

81

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

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 Freecadweb.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 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 description is not detected on the main page of FreeCAD Web. 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: