Tools & Wizards About Us
chibios.sourceforge.net screenshot

Report Summary

  • 38

    Performance

    Renders faster than
    57% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

chibios.sourceforge.net

ChibiOS/RT free embedded RTOS download | SourceForge.net

Page Load Speed

2.3 sec in total

First Response

29 ms

Resources Loaded

1.8 sec

Page Rendered

511 ms

chibios.sourceforge.net screenshot

About Website

Visit chibios.sourceforge.net now to see the best up-to-date ChibiOS Source Forge content for China and also check out these interesting facts you probably never knew about chibios.sourceforge.net

Download ChibiOS/RT free embedded RTOS for free. ChibiOS/RT is a free and efficient RTOS designed for deeply embedded applications. It offers a comprehensive set of kernel primitives and supports many...

Visit chibios.sourceforge.net

Key Findings

We analyzed Chibios.sourceforge.net page load time and found that the first response time was 29 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 45% of websites can load faster.

Performance Metrics

chibios.sourceforge.net performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

47/100

25%

SI (Speed Index)

Value6.3 s

42/100

10%

TBT (Total Blocking Time)

Value1,250 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.109

87/100

15%

TTI (Time to Interactive)

Value16.6 s

5/100

10%

Network Requests Diagram

chibios.sourceforge.net

29 ms

846 ms

sf.sandiego-cmp-top.js

42 ms

cmp.css

61 ms

cmp.php

418 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Chibios.sourceforge.net, 84% (31 requests) were made to A.fsdn.com and 5% (2 requests) were made to D.delivery.consentmanager.net. The less responsive or slowest element that took the longest time to load (846 ms) relates to the external source Sourceforge.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 137.8 kB (21%)

Content Size

664.0 kB

After Optimization

526.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chibios.sourceforge.net main page is 664.0 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. 45% of websites need less resources to load. Javascripts take 350.5 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 135.7 kB

  • Original 170.4 kB
  • After minification 170.1 kB
  • After compression 34.7 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 135.7 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 73.3 kB
  • After minification 73.3 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. ChibiOS Source Forge images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 2.0 kB

  • Original 350.5 kB
  • After minification 350.5 kB
  • After compression 348.5 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 145 B

  • Original 69.8 kB
  • After minification 69.8 kB
  • After compression 69.7 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. Chibios.sourceforge.net has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 17 (52%)

Requests Now

33

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ChibiOS Source Forge. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

chibios.sourceforge.net

chibios.sourceforge.net

29 ms

846 ms

sf.sandiego-cmp-top.js

sf.sandiego-cmp-top.js

42 ms

cmp.css

cmp.css

61 ms

cmp.php

cmp.php

418 ms

cmp_en.min.js

cmp_en.min.js

778 ms

bizx-prebid.js

bizx-prebid.js

28 ms

lato.css

lato.css

26 ms

sandiego.css

sandiego.css

45 ms

disallow.css

disallow.css

63 ms

sf.sandiego-head.js

sf.sandiego-head.js

62 ms

adsbanner.js

adsbanner.js

62 ms

sf-logo-full.svg

sf-logo-full.svg

27 ms

owl.carousel.min.js

owl.carousel.min.js

19 ms

featherlight.min.js

featherlight.min.js

20 ms

featherlight.gallery.min.js

featherlight.gallery.min.js

20 ms

github-sync.png

github-sync.png

15 ms

icon

icon

16 ms

sf-icon-black.svg

sf-icon-black.svg

14 ms

25 ms

1

1

195 ms

18551

18551

23 ms

sf_star_yellow.svg

sf_star_yellow.svg

37 ms

lato-v20-latin-ext_latin-regular.woff

lato-v20-latin-ext_latin-regular.woff

22 ms

lato-v20-latin-ext_latin-700.woff

lato-v20-latin-ext_latin-700.woff

32 ms

sf.sandiego-base.js

sf.sandiego-base.js

33 ms

sf.sandiego-foundation-base.js

sf.sandiego-foundation-base.js

32 ms

sf.sandiego-foundation-tooltip.js

sf.sandiego-foundation-tooltip.js

31 ms

sf.sandiego-project.js

sf.sandiego-project.js

39 ms

icon

icon

31 ms

icon

icon

139 ms

icon

icon

182 ms

icon

icon

154 ms

icon

icon

138 ms

ccpa-optout.png

ccpa-optout.png

136 ms

cmp.php

cmp.php

103 ms

bV8xLndfMTEzMTkucl9VU1ZDRFBBLmxfZW4uZF8yNDkyLnhfMTEudi5wLnRfMjQ5Mi54dF8zNw.js

bV8xLndfMTEzMTkucl9VU1ZDRFBBLmxfZW4uZF8yNDkyLnhfMTEudi5wLnRfMjQ5Mi54dF8zNw.js

383 ms

Accessibility Review

chibios.sourceforge.net accessibility score

81

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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

chibios.sourceforge.net 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

Page has valid source maps

SEO Factors

chibios.sourceforge.net SEO score

84

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

Content Best Practices

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

Impact

Issue

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

    BINARY

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chibios.sourceforge.net 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 Chibios.sourceforge.net main page’s claimed encoding is binary. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

chibios.sourceforge.net

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