Report Summary

  • 69

    Performance

    Renders faster than
    81% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

r2d3.us

R2D3: Statistics and Data Visualization

Page Load Speed

6.4 sec in total

First Response

387 ms

Resources Loaded

1.9 sec

Page Rendered

4.1 sec

r2d3.us screenshot

About Website

Welcome to r2d3.us homepage info - get ready to check R2D3 best content for United States right away, or after learning these important things about r2d3.us

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Key Findings

We analyzed R2d3.us page load time and found that the first response time was 387 ms and then it took 6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

r2d3.us performance score

69

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

91/100

10%

LCP (Largest Contentful Paint)

Value10.0 s

0/100

25%

SI (Speed Index)

Value1.7 s

100/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value7.1 s

52/100

10%

Network Requests Diagram

r2d3.us

387 ms

www.r2d3.us

24 ms

19 ms

bootstrap.css

16 ms

style.css

7 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 74% of them (20 requests) were addressed to the original R2d3.us, 7% (2 requests) were made to Platform.twitter.com and 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source D24n15hnbwhuhn.cloudfront.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (58%)

Content Size

2.1 MB

After Optimization

875.6 kB

In fact, the total size of R2d3.us main page is 2.1 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. 65% of websites need less resources to load. Javascripts take 743.0 kB which makes up the majority of the site volume.

HTML Optimization

-96%

Potential reduce by 624.2 kB

  • Original 653.1 kB
  • After minification 651.2 kB
  • After compression 28.9 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 624.2 kB or 96% of the original size.

Image Optimization

-4%

Potential reduce by 25.3 kB

  • Original 710.0 kB
  • After minification 684.7 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. R2D3 images are well optimized though.

JavaScript Optimization

-78%

Potential reduce by 580.9 kB

  • Original 743.0 kB
  • After minification 532.3 kB
  • After compression 162.0 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 580.9 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (58%)

Requests Now

24

After Optimization

10

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of R2D3. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

r2d3.us accessibility score

73

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.

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

r2d3.us best practices score

83

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

SEO Factors

r2d3.us SEO score

83

Search Engine Optimization Advices

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

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 R2d3.us 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 R2d3.us 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

Open Graph data is detected on the main page of R2D3. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: