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roboticopenplatform.org screenshot

Report Summary

  • 92

    Performance

    Renders faster than
    92% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 80

    SEO

    Google-friendlier than
    42% of websites

roboticopenplatform.org

Robotic Open Platform - About Robotic Open Platform

Page Load Speed

1.3 sec in total

First Response

289 ms

Resources Loaded

934 ms

Page Rendered

90 ms

roboticopenplatform.org screenshot

About Website

Welcome to roboticopenplatform.org homepage info - get ready to check Robotic Open Platform best content right away, or after learning these important things about roboticopenplatform.org

Robotic Open Platform (ROP) aims to make hardware designs of robots available under an Open Hardware license to the entire robotic community. It provides CAD drawings, electric schemes and the require...

Visit roboticopenplatform.org

Key Findings

We analyzed Roboticopenplatform.org page load time and found that the first response time was 289 ms and then it took 1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

roboticopenplatform.org performance score

92

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

93/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

82/100

25%

SI (Speed Index)

Value4.3 s

76/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value2.6 s

98/100

10%

Network Requests Diagram

roboticopenplatform.org

289 ms

css

17 ms

grid.css

90 ms

style.css

174 ms

colorbox.css

176 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 88% of them (28 requests) were addressed to the original Roboticopenplatform.org, 3% (1 request) were made to Fonts.googleapis.com and 3% (1 request) were made to Widgets.twimg.com. The less responsive or slowest element that took the longest time to load (436 ms) belongs to the original domain Roboticopenplatform.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 34.0 kB (15%)

Content Size

230.1 kB

After Optimization

196.1 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Roboticopenplatform.org main page is 230.1 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 169.7 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 7.9 kB

  • Original 11.0 kB
  • After minification 9.1 kB
  • After compression 3.1 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 2.0 kB, which is 18% 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 7.9 kB or 72% of the original size.

Image Optimization

-15%

Potential reduce by 26.1 kB

  • Original 169.7 kB
  • After minification 143.6 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, Robotic Open Platform needs image optimization as it can save up to 26.1 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 49.4 kB
  • After minification 49.4 kB
  • After compression 49.4 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.

Requests Breakdown

Number of requests can be reduced by 15 (50%)

Requests Now

30

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Robotic Open Platform. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

roboticopenplatform.org

roboticopenplatform.org

289 ms

css

css

17 ms

grid.css

grid.css

90 ms

style.css

style.css

174 ms

colorbox.css

colorbox.css

176 ms

modernizr-2.0.6.min.js

modernizr-2.0.6.min.js

178 ms

widget.js

widget.js

10 ms

jquery.min.js

jquery.min.js

8 ms

plugins.js

plugins.js

174 ms

script.js

script.js

176 ms

ga.js

ga.js

9 ms

header.png

header.png

259 ms

logo.png

logo.png

92 ms

tue.png

tue.png

174 ms

nav_bar.png

nav_bar.png

90 ms

nav_active.png

nav_active.png

104 ms

main_bg.png

main_bg.png

90 ms

robo_slider2.jpg

robo_slider2.jpg

263 ms

turtle.jpg

turtle.jpg

267 ms

TurtleBot.jpg

TurtleBot.jpg

183 ms

Thymio_II.jpg

Thymio_II.jpg

209 ms

NimbRo-OP_slider.jpg

NimbRo-OP_slider.jpg

262 ms

Turtle-5K_banner.jpg

Turtle-5K_banner.jpg

272 ms

title_bar.png

title_bar.png

313 ms

icon_uitleg.png

icon_uitleg.png

346 ms

icon_forum.png

icon_forum.png

349 ms

facebook.png

facebook.png

351 ms

linkedin.png

linkedin.png

357 ms

twitter.png

twitter.png

358 ms

jquery.colorbox-min.js

jquery.colorbox-min.js

416 ms

jquery.nivo.slider.pack.js

jquery.nivo.slider.pack.js

435 ms

nivo-slider.css

nivo-slider.css

436 ms

Accessibility Review

roboticopenplatform.org accessibility score

77

Accessibility Issues

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

roboticopenplatform.org best practices score

67

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

Browser errors were logged to the console

SEO Factors

roboticopenplatform.org SEO score

80

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

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Roboticopenplatform.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Dutch language. Our system also found out that Roboticopenplatform.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

roboticopenplatform.org

Open Graph description is not detected on the main page of Robotic Open Platform. 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: