Tools & Wizards About Us
robohub.org screenshot

Report Summary

  • 70

    Performance

    Renders faster than
    81% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

robohub.org

Robohub - Connecting the robotics community to the world

Page Load Speed

1.7 sec in total

First Response

31 ms

Resources Loaded

516 ms

Page Rendered

1.1 sec

robohub.org screenshot

About Website

Visit robohub.org now to see the best up-to-date Robohub content for United States and also check out these interesting facts you probably never knew about robohub.org

Robohub is a non-profit online communication platform that brings together experts in robotics research, start-ups, business, and education from around the world.

Visit robohub.org

Key Findings

We analyzed Robohub.org page load time and found that the first response time was 31 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

robohub.org performance score

70

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

58/100

10%

LCP (Largest Contentful Paint)

Value10.4 s

0/100

25%

SI (Speed Index)

Value2.7 s

96/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.3 s

93/100

10%

Network Requests Diagram

robohub.org

31 ms

1_xs.css

16 ms

2__s.css

16 ms

3__m.css

16 ms

4__l.css

16 ms

Our browser made a total of 102 requests to load all elements on the main page. We found that 84% of them (86 requests) were addressed to the original Robohub.org, 3% (3 requests) were made to Platform.twitter.com and 3% (3 requests) were made to Robohub.disqus.com. The less responsive or slowest element that took the longest time to load (317 ms) relates to the external source Dronecenter.bard.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 805.9 kB (12%)

Content Size

6.6 MB

After Optimization

5.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Robohub.org main page is 6.6 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 6.1 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 93.4 kB

  • Original 115.0 kB
  • After minification 104.6 kB
  • After compression 21.6 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. 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 93.4 kB or 81% of the original size.

Image Optimization

-7%

Potential reduce by 430.5 kB

  • Original 6.1 MB
  • After minification 5.6 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. Robohub images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 199.2 kB

  • Original 326.9 kB
  • After minification 311.5 kB
  • After compression 127.7 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 199.2 kB or 61% of the original size.

CSS Optimization

-84%

Potential reduce by 82.9 kB

  • Original 98.2 kB
  • After minification 74.1 kB
  • After compression 15.3 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. Robohub.org needs all CSS files to be minified and compressed as it can save up to 82.9 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (39%)

Requests Now

101

After Optimization

62

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Robohub. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

robohub.org

robohub.org

31 ms

1_xs.css

1_xs.css

16 ms

2__s.css

2__s.css

16 ms

3__m.css

3__m.css

16 ms

4__l.css

4__l.css

16 ms

5_xl.css

5_xl.css

16 ms

_layout.css

_layout.css

16 ms

_styles.css

_styles.css

17 ms

style.css

style.css

19 ms

core_styles.css

core_styles.css

18 ms

style_theme.css

style_theme.css

19 ms

style_sforms.css

style_sforms.css

18 ms

slider_style.css

slider_style.css

19 ms

extra_styles.css

extra_styles.css

20 ms

cat-posts.css

cat-posts.css

29 ms

jquery.js

jquery.js

33 ms

jquery-migrate.min.js

jquery-migrate.min.js

31 ms

donate_popup.js

donate_popup.js

31 ms

rainbow-custom.min.js

rainbow-custom.min.js

30 ms

smoothscroll.js

smoothscroll.js

28 ms

colorbox.css

colorbox.css

30 ms

jquery.min.js

jquery.min.js

47 ms

syntax_highlight.css

syntax_highlight.css

29 ms

jquery.colorbox.js

jquery.colorbox.js

43 ms

jquery.colorbox.aux.js

jquery.colorbox.aux.js

43 ms

filtering.js

filtering.js

43 ms

slim-081711.css

slim-081711.css

85 ms

gce-style.css

gce-style.css

41 ms

core.min.js

core.min.js

41 ms

widget.min.js

widget.min.js

41 ms

mouse.min.js

mouse.min.js

41 ms

sortable.min.js

sortable.min.js

41 ms

jquery-qtip.js

jquery-qtip.js

80 ms

gce-script.js

gce-script.js

81 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

143 ms

analytics.js

analytics.js

160 ms

all.js

all.js

189 ms

trashcandrone-1024x682.jpg

trashcandrone-1024x682.jpg

317 ms

tumblr_inline_o2c55tNPXv1twtvsn_540.jpg

tumblr_inline_o2c55tNPXv1twtvsn_540.jpg

152 ms

tlogo.png

tlogo.png

139 ms

printlogo.png

printlogo.png

139 ms

toplogo.png

toplogo.png

141 ms

social_icons_robohub.png

social_icons_robohub.png

142 ms

25001364871_2b79fdd806_c.jpg

25001364871_2b79fdd806_c.jpg

144 ms

A380_Etihad_-_Final_assembly_line.jpg

A380_Etihad_-_Final_assembly_line.jpg

155 ms

1280px-Bletchley_Park_Bombe5-1024x678.jpg

1280px-Bletchley_Park_Bombe5-1024x678.jpg

154 ms

1280px-Bletchley_Park_Bombe5.jpg

1280px-Bletchley_Park_Bombe5.jpg

147 ms

FactoryInADay-1024x371.jpg

FactoryInADay-1024x371.jpg

143 ms

FactoryInADay1.jpg

FactoryInADay1.jpg

141 ms

Roar.png

Roar.png

160 ms

Soft-electronics2.jpg

Soft-electronics2.jpg

145 ms

Gasensorforweb.jpg

Gasensorforweb.jpg

144 ms

DroneSharks.jpg

DroneSharks.jpg

148 ms

anyMAL.png

anyMAL.png

151 ms

PresidentReport.png

PresidentReport.png

148 ms

submarine.jpg

submarine.jpg

156 ms

Oxford_Study.png

Oxford_Study.png

154 ms

Fetch_and_Freight_System_Fetch_Robotics.jpg

Fetch_and_Freight_System_Fetch_Robotics.jpg

156 ms

Core_team_fetch.png

Core_team_fetch.png

165 ms

MIT-Human-Robot-Teamwork.jpg

MIT-Human-Robot-Teamwork.jpg

160 ms

talking-machines-1024x256.png

talking-machines-1024x256.png

160 ms

pencil.jpg

pencil.jpg

156 ms

AAAIAwards.jpg

AAAIAwards.jpg

168 ms

drones-dancing.png

drones-dancing.png

158 ms

jibo-on-tv-screen_800_613_80-290x290.jpg

jibo-on-tv-screen_800_613_80-290x290.jpg

157 ms

bioinformatics-290x290.png

bioinformatics-290x290.png

163 ms

Waypoint_drones_winemaking_Agriculture_aerial_surveying_William_Metz_Sensefly-290x290.jpg

Waypoint_drones_winemaking_Agriculture_aerial_surveying_William_Metz_Sensefly-290x290.jpg

160 ms

John_Markoff_filing_story_from_airport_New_York_Times-290x290.jpg

John_Markoff_filing_story_from_airport_New_York_Times-290x290.jpg

161 ms

SRI_Trauma_Pod_DARPA_Surgery_Robot_medicine-290x290.jpg

SRI_Trauma_Pod_DARPA_Surgery_Robot_medicine-290x290.jpg

164 ms

robot_installation-290x290.jpg

robot_installation-290x290.jpg

162 ms

dot.png

dot.png

162 ms

59341-175x130.png

59341-175x130.png

163 ms

59691-175x130.jpg

59691-175x130.jpg

162 ms

widgets.js

widgets.js

127 ms

count.js

count.js

103 ms

28232-175x130.jpg

28232-175x130.jpg

83 ms

59781-175x130.png

59781-175x130.png

41 ms

30449-175x130.jpg

30449-175x130.jpg

90 ms

26447-175x130.jpg

26447-175x130.jpg

88 ms

7905-175x130.jpg

7905-175x130.jpg

87 ms

59717-175x130.jpg

59717-175x130.jpg

87 ms

32444-175x130.jpg

32444-175x130.jpg

86 ms

6625-175x130.png

6625-175x130.png

86 ms

podcast.png

podcast.png

85 ms

Stiquto.jpg

Stiquto.jpg

85 ms

humanoid.png

humanoid.png

83 ms

robohub.png

robohub.png

83 ms

robotspodcast.png

robotspodcast.png

81 ms

robojobs.png

robojobs.png

79 ms

roboevents.png

roboevents.png

78 ms

rbj_widgetbak.png

rbj_widgetbak.png

78 ms

robojobs_275sp.png

robojobs_275sp.png

77 ms

downlogo.png

downlogo.png

77 ms

vftag.png

vftag.png

76 ms

collect

collect

54 ms

button.831500944bc3eb7ea5276ccdc3f71d2e.js

button.831500944bc3eb7ea5276ccdc3f71d2e.js

48 ms

count-data.js

count-data.js

75 ms

count-data.js

count-data.js

78 ms

127 ms

xd_arbiter.php

xd_arbiter.php

82 ms

xd_arbiter.php

xd_arbiter.php

141 ms

follow_button.6a78875565a912489e9aef879c881358.en.html

follow_button.6a78875565a912489e9aef879c881358.en.html

37 ms

Accessibility Review

robohub.org accessibility score

70

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

Form elements do not have associated labels

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

robohub.org best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

robohub.org SEO score

93

Search Engine Optimization Advices

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Robohub.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 Robohub.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

robohub.org

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