Tools & Wizards About Us
iot-dsa.org screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    74% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 63% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

iot-dsa.org

Open Source IoT Platform & Toolkit | DSA - Home

Page Load Speed

2.2 sec in total

First Response

256 ms

Resources Loaded

1.6 sec

Page Rendered

324 ms

iot-dsa.org screenshot

About Website

Click here to check amazing IoT DSA content for United States. Otherwise, check out these important facts you probably never knew about iot-dsa.org

Distributed Services Architecture (DSA) is the open source IoT platform that facilitates device inter-communication, logic and applications at every layer of the Internet of Things Infrastructure.

Visit iot-dsa.org

Key Findings

We analyzed Iot-dsa.org page load time and found that the first response time was 256 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

iot-dsa.org performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value8.9 s

1/100

25%

SI (Speed Index)

Value4.8 s

66/100

10%

TBT (Total Blocking Time)

Value170 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value7.2 s

50/100

10%

Network Requests Diagram

iot-dsa.org

256 ms

jquery.min.js

38 ms

css

33 ms

widgetkit-864c5274.css

59 ms

menu-dbe65e203b3bb9926ba513a87b479e9e.css

167 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 87% of them (41 requests) were addressed to the original Iot-dsa.org, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (707 ms) belongs to the original domain Iot-dsa.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.0 MB (64%)

Content Size

1.6 MB

After Optimization

582.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Iot-dsa.org main page is 1.6 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. 45% of websites need less resources to load. Javascripts take 832.6 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 19.5 kB

  • Original 24.3 kB
  • After minification 20.0 kB
  • After compression 4.8 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 4.3 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 19.5 kB or 80% of the original size.

Image Optimization

-42%

Potential reduce by 179.7 kB

  • Original 427.1 kB
  • After minification 247.4 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, IoT DSA needs image optimization as it can save up to 179.7 kB or 42% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-67%

Potential reduce by 561.7 kB

  • Original 832.6 kB
  • After minification 825.9 kB
  • After compression 271.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 561.7 kB or 67% of the original size.

CSS Optimization

-83%

Potential reduce by 289.1 kB

  • Original 348.5 kB
  • After minification 335.7 kB
  • After compression 59.4 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. Iot-dsa.org needs all CSS files to be minified and compressed as it can save up to 289.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 30 (68%)

Requests Now

44

After Optimization

14

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of IoT DSA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

iot-dsa.org

iot-dsa.org

256 ms

jquery.min.js

jquery.min.js

38 ms

css

css

33 ms

widgetkit-864c5274.css

widgetkit-864c5274.css

59 ms

menu-dbe65e203b3bb9926ba513a87b479e9e.css

menu-dbe65e203b3bb9926ba513a87b479e9e.css

167 ms

grid-responsive.css

grid-responsive.css

112 ms

grid-responsive.css

grid-responsive.css

128 ms

bootstrap.css

bootstrap.css

322 ms

master-96633374d16a822437041bfe2b9e87ab.css

master-96633374d16a822437041bfe2b9e87ab.css

439 ms

master-chrome.css

master-chrome.css

150 ms

mediaqueries.css

mediaqueries.css

166 ms

uikitanimations.css

uikitanimations.css

190 ms

mootools-core.js

mootools-core.js

453 ms

core.js

core.js

218 ms

mootools-more.js

mootools-more.js

630 ms

jquery.min.js

jquery.min.js

383 ms

jquery-noconflict.js

jquery-noconflict.js

270 ms

jquery-migrate.min.js

jquery-migrate.min.js

328 ms

caption.js

caption.js

383 ms

widgetkit-9b277cd1.js

widgetkit-9b277cd1.js

379 ms

gantry-totop.js

gantry-totop.js

433 ms

bootstrap.min.js

bootstrap.min.js

450 ms

browser-engines.js

browser-engines.js

451 ms

destinyfx.js

destinyfx.js

487 ms

totop.js

totop.js

506 ms

uikit.min.js

uikit.min.js

707 ms

rokmediaqueries.js

rokmediaqueries.js

509 ms

rokmediaqueries.js

rokmediaqueries.js

511 ms

responsive.js

responsive.js

540 ms

api.js

api.js

63 ms

style.css

style.css

148 ms

lightbox.js

lightbox.js

150 ms

mediaelement-and-player.js

mediaelement-and-player.js

161 ms

spotlight.js

spotlight.js

156 ms

analytics.js

analytics.js

116 ms

recaptcha__en.js

recaptcha__en.js

157 ms

DSA_Logo_dark_final.png

DSA_Logo_dark_final.png

86 ms

joomfx_bg.jpg

joomfx_bg.jpg

528 ms

titlelines.png

titlelines.png

88 ms

dsa-nodeApi2.png

dsa-nodeApi2.png

86 ms

dsa-dslink2.png

dsa-dslink2.png

88 ms

dsa-broker.png

dsa-broker.png

162 ms

code-icon.png

code-icon.png

232 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

126 ms

enfonto.woff

enfonto.woff

143 ms

collect

collect

51 ms

magnifier.png

magnifier.png

73 ms

Accessibility Review

iot-dsa.org accessibility score

86

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

Links do not have a discernible name

Best Practices

iot-dsa.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

iot-dsa.org SEO score

98

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

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 Iot-dsa.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 Iot-dsa.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

iot-dsa.org

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