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Report Summary

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    Performance

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    Accessibility

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    Best Practices

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    SEO

blinddriverchallenge.org

Blind Driver Challenge | National Federation of the Blind

Page Load Speed

253 ms in total

First Response

16 ms

Resources Loaded

159 ms

Page Rendered

78 ms

blinddriverchallenge.org screenshot

About Website

Visit blinddriverchallenge.org now to see the best up-to-date Blind Driver Challenge content and also check out these interesting facts you probably never knew about blinddriverchallenge.org

The National Federation of the Blind (NFB) Blind Driver Challenge™ is one of our most innovative and far-reaching research initiatives.

Visit blinddriverchallenge.org

Key Findings

We analyzed Blinddriverchallenge.org page load time and found that the first response time was 16 ms and then it took 237 ms to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

blinddriverchallenge.org performance score

0

Network Requests Diagram

blinddriverchallenge.org

16 ms

blinddriverchallenge.org

38 ms

blind-driver-challenge

59 ms

cf.errors.css

4 ms

browser-bar.png

9 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that 29% of them (2 requests) were addressed to the original Blinddriverchallenge.org, 71% (5 requests) were made to Nfb.org. The less responsive or slowest element that took the longest time to load (59 ms) relates to the external source Nfb.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.6 kB (26%)

Content Size

14.0 kB

After Optimization

10.4 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Blinddriverchallenge.org main page is 14.0 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. HTML takes 5.5 kB which makes up the majority of the site volume.

HTML Optimization

-63%

Potential reduce by 3.5 kB

  • Original 5.5 kB
  • After minification 5.1 kB
  • After compression 2.0 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 3.5 kB or 63% of the original size.

Image Optimization

-0%

Potential reduce by 5 B

  • Original 3.9 kB
  • After minification 3.9 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. Blind Driver Challenge images are well optimized though.

CSS Optimization

-2%

Potential reduce by 75 B

  • Original 4.5 kB
  • After minification 4.5 kB
  • After compression 4.4 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. Blinddriverchallenge.org has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

4

After Optimization

4

  • Images
  • JavaScript
  • CSS

The browser has sent 4 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blind Driver Challenge. According to our analytics all requests are already optimized.

Network Requests Diagram

blinddriverchallenge.org

blinddriverchallenge.org

16 ms

blinddriverchallenge.org

blinddriverchallenge.org

38 ms

blind-driver-challenge

blind-driver-challenge

59 ms

cf.errors.css

cf.errors.css

4 ms

browser-bar.png

browser-bar.png

9 ms

cf-no-screenshot-error.png

cf-no-screenshot-error.png

8 ms

main.js

main.js

31 ms

SEO Factors

blinddriverchallenge.org SEO score

0

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 Blinddriverchallenge.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 Blinddriverchallenge.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

blinddriverchallenge.org

Open Graph description is not detected on the main page of Blind Driver Challenge. 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: