2.3 sec in total
242 ms
1.9 sec
222 ms
Welcome to openrtos.org homepage info - get ready to check Open RTOS best content right away, or after learning these important things about openrtos.org
RTOS - FreeRTOS is a truly free professional grade RTOS for microcontrollers that supports 35 MCU architectures and become a market leader. A Portable, open source, mini Real Time kernel. A free RTOS ...
Visit openrtos.orgWe analyzed Openrtos.org page load time and found that the first response time was 242 ms and then it took 2.1 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.
openrtos.org performance score
name
value
score
weighting
Value3.8 s
26/100
10%
Value4.0 s
50/100
25%
Value4.4 s
74/100
10%
Value90 ms
99/100
30%
Value0
100/100
15%
Value5.9 s
65/100
10%
242 ms
419 ms
157 ms
234 ms
238 ms
Our browser made a total of 38 requests to load all elements on the main page. We found that 82% of them (31 requests) were addressed to the original Openrtos.org, 8% (3 requests) were made to Code.jquery.com and 3% (1 request) were made to Cdn-images.mailchimp.com. The less responsive or slowest element that took the longest time to load (790 ms) belongs to the original domain Openrtos.org.
Page size can be reduced by 103.7 kB (36%)
287.4 kB
183.7 kB
In fact, the total size of Openrtos.org main page is 287.4 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. 25% of websites need less resources to load. Images take 117.0 kB which makes up the majority of the site volume.
Potential reduce by 84.3 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 19.3 kB, which is 19% 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 84.3 kB or 83% of the original size.
Potential reduce by 16.9 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. Obviously, Open RTOS needs image optimization as it can save up to 16.9 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 1.0 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.
Potential reduce by 1.4 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. Openrtos.org needs all CSS files to be minified and compressed as it can save up to 1.4 kB or 16% of the original size.
Number of requests can be reduced by 16 (44%)
36
20
The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Open RTOS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.
openrtos.org
242 ms
www.openrtos.org
419 ms
doxygen.css
157 ms
stlib.js
234 ms
left_menu.js
238 ms
jquery-latest.js
20 ms
jquery-ui.js
24 ms
jquery-ui.css
10 ms
liquid-canvas.js
170 ms
liquid-canvas-plugins.js
173 ms
slim-10_7.css
8 ms
counter.js
38 ms
sttree.js
159 ms
steffie.js
169 ms
ga.js
55 ms
aws-logo.png
155 ms
logo.jpg
236 ms
Twitter_Follow.png
169 ms
mailinglist.png
261 ms
blank.gif
155 ms
expand_f.gif
173 ms
expand_uf.gif
255 ms
line_def0.gif
270 ms
line_def1.gif
307 ms
line_def2.gif
326 ms
line_def3.gif
337 ms
menu_hint_arrow.png
360 ms
ARM-connected.png
479 ms
Espressif_logo.png
439 ms
IAR.jpg
565 ms
Microchip-Premier-Third-Party-Partner.jpg
577 ms
Partner-of-NXP.jpg
493 ms
Renesas.png
534 ms
STmicro-logo.jpg
698 ms
Texas-Instruments-MCU-Developer-Network.jpg
630 ms
wittenstein.jpg
719 ms
Xilinx.jpg
790 ms
t.php
85 ms
openrtos.org accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<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
Image elements do not have [alt] attributes
Links do not have a discernible name
openrtos.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
openrtos.org SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
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
Document uses legible font sizes
Tap targets are not sized appropriately
EN
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Openrtos.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 Openrtos.org main page’s claimed encoding is iso-8859-1. 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.
openrtos.org
Open Graph description is not detected on the main page of Open RTOS. 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: