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r-statistics.co screenshot

Report Summary

  • 82

    Performance

    Renders faster than
    87% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

r-statistics.co

Tutorials on Advanced Stats and Machine Learning With R

Page Load Speed

710 ms in total

First Response

226 ms

Resources Loaded

365 ms

Page Rendered

119 ms

r-statistics.co screenshot

About Website

Visit r-statistics.co now to see the best up-to-date R Statistics content for United States and also check out these interesting facts you probably never knew about r-statistics.co

R Language Tutorials for Advanced Statistics

Visit r-statistics.co

Key Findings

We analyzed R-statistics.co page load time and found that the first response time was 226 ms and then it took 484 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

r-statistics.co performance score

82

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

69/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

79/100

25%

SI (Speed Index)

Value2.4 s

98/100

10%

TBT (Total Blocking Time)

Value240 ms

86/100

30%

CLS (Cumulative Layout Shift)

Value0.085

93/100

15%

TTI (Time to Interactive)

Value6.5 s

59/100

10%

Network Requests Diagram

r-statistics.co

226 ms

gppstub.js

48 ms

boise.js

44 ms

abilene.js

83 ms

bootstrap.min.css

37 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 7% of them (1 request) were addressed to the original R-statistics.co, 36% (5 requests) were made to Cdn-0.r-statistics.co and 14% (2 requests) were made to The.gatekeeperconsent.com. The less responsive or slowest element that took the longest time to load (226 ms) belongs to the original domain R-statistics.co.

Page Optimization Overview & Recommendations

Page size can be reduced by 28.5 kB (19%)

Content Size

149.9 kB

After Optimization

121.4 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of R-statistics.co main page is 149.9 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. 35% of websites need less resources to load. Images take 73.3 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 28.4 kB

  • Original 38.4 kB
  • After minification 32.6 kB
  • After compression 10.0 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. This page needs HTML code to be minified as it can gain 5.8 kB, which is 15% 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 28.4 kB or 74% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 73.3 kB
  • After minification 73.3 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. R Statistics images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 117 B

  • Original 38.3 kB
  • After minification 38.3 kB
  • After compression 38.2 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 8 (62%)

Requests Now

13

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of R Statistics. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

r-statistics.co

r-statistics.co

226 ms

gppstub.js

gppstub.js

48 ms

boise.js

boise.js

44 ms

abilene.js

abilene.js

83 ms

bootstrap.min.css

bootstrap.min.css

37 ms

highlight.css

highlight.css

50 ms

css

css

21 ms

ccpaplus.js

ccpaplus.js

81 ms

jquery.js

jquery.js

7 ms

bootstrap.min.js

bootstrap.min.js

80 ms

toc.js

toc.js

84 ms

v.js

v.js

41 ms

corrplot2.png

corrplot2.png

44 ms

analytics.js

analytics.js

18 ms

Accessibility Review

r-statistics.co accessibility score

64

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

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

Image elements do not have [alt] attributes

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

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

Best Practices

r-statistics.co 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

High

Missing source maps for large first-party JavaScript

SEO Factors

r-statistics.co SEO score

86

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise R-statistics.co can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that R-statistics.co 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

r-statistics.co

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