Tools & Wizards About Us
datatricks.co.uk screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

datatricks.co.uk

Data Tricks | AI, Machine Learning & Analytics in R

Page Load Speed

3.5 sec in total

First Response

265 ms

Resources Loaded

2.8 sec

Page Rendered

480 ms

datatricks.co.uk screenshot

About Website

Click here to check amazing Data Tricks content. Otherwise, check out these important facts you probably never knew about datatricks.co.uk

Data Tricks is a blog about data science, artificial intelligence, machine learning, analytics and visualisation. It features articles and tutorials explaining how to produce charts in R with reproduc...

Visit datatricks.co.uk

Key Findings

We analyzed Datatricks.co.uk page load time and found that the first response time was 265 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

datatricks.co.uk performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value6.8 s

7/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value1,040 ms

26/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.1 s

42/100

10%

Network Requests Diagram

datatricks.co.uk

265 ms

datatricks.co.uk

1381 ms

jquery.min.js

37 ms

bootstrap.min.css

50 ms

style.css

115 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 84% of them (41 requests) were addressed to the original Datatricks.co.uk, 4% (2 requests) were made to Connect.facebook.net and 2% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Datatricks.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 79.5 kB (12%)

Content Size

671.0 kB

After Optimization

591.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Datatricks.co.uk main page is 671.0 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 499.6 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 57.1 kB

  • Original 71.8 kB
  • After minification 61.9 kB
  • After compression 14.7 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 9.9 kB, which is 14% 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 57.1 kB or 80% of the original size.

Image Optimization

-2%

Potential reduce by 8.3 kB

  • Original 499.6 kB
  • After minification 491.3 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. Data Tricks images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 2.9 kB

  • Original 52.5 kB
  • After minification 52.5 kB
  • After compression 49.6 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.

CSS Optimization

-24%

Potential reduce by 11.2 kB

  • Original 47.0 kB
  • After minification 47.0 kB
  • After compression 35.9 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. Datatricks.co.uk needs all CSS files to be minified and compressed as it can save up to 11.2 kB or 24% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (51%)

Requests Now

45

After Optimization

22

  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Data Tricks. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

datatricks.co.uk

datatricks.co.uk

265 ms

datatricks.co.uk

datatricks.co.uk

1381 ms

jquery.min.js

jquery.min.js

37 ms

bootstrap.min.css

bootstrap.min.css

50 ms

style.css

style.css

115 ms

css2

css2

56 ms

scripts.js

scripts.js

218 ms

styles.css

styles.css

319 ms

cookie-law-info-public.css

cookie-law-info-public.css

314 ms

cookie-law-info-gdpr.css

cookie-law-info-gdpr.css

320 ms

bootstrap.min.css

bootstrap.min.css

322 ms

video-container.min.css

video-container.min.css

327 ms

style.css

style.css

324 ms

front.css

front.css

430 ms

style.css

style.css

432 ms

general.js

general.js

435 ms

sdk.js

sdk.js

434 ms

js

js

120 ms

luxy.js

luxy.js

424 ms

vanilla-tilt.min.js

vanilla-tilt.min.js

433 ms

hooks.min.js

hooks.min.js

530 ms

i18n.min.js

i18n.min.js

537 ms

index.js

index.js

533 ms

index.js

index.js

545 ms

tex-chtml.js

tex-chtml.js

129 ms

sdk.js

sdk.js

57 ms

data-tricks-logo.svg

data-tricks-logo.svg

286 ms

how-to-choose-right-statistical-test-768x512.jpg

how-to-choose-right-statistical-test-768x512.jpg

309 ms

school-exam-results-2020-300x200.jpg

school-exam-results-2020-300x200.jpg

230 ms

machine-learning-classification-accuracy-300x200.jpg

machine-learning-classification-accuracy-300x200.jpg

216 ms

linear-regression-in-r-300x199.jpg

linear-regression-in-r-300x199.jpg

249 ms

covid-19-300x160.jpg

covid-19-300x160.jpg

242 ms

blog-300x200.jpg

blog-300x200.jpg

347 ms

titanic-kaggle-r-300x173.jpg

titanic-kaggle-r-300x173.jpg

344 ms

machine-learning-768x512.png

machine-learning-768x512.png

532 ms

one-hot-encoding-in-r-300x200.jpg

one-hot-encoding-in-r-300x200.jpg

371 ms

pi-03-e1519683325571-180x300.jpg

pi-03-e1519683325571-180x300.jpg

399 ms

normalisation-standardisation-300x200.jpg

normalisation-standardisation-300x200.jpg

430 ms

UK-Heatmap-in-R-264x300.jpeg

UK-Heatmap-in-R-264x300.jpeg

460 ms

leaflet_map_in_r_screenshot-300x138.jpg

leaflet_map_in_r_screenshot-300x138.jpg

471 ms

uk-population-density-map-r-300x174.png

uk-population-density-map-r-300x174.png

494 ms

London-map-with-flag-768x717.jpeg

London-map-with-flag-768x717.jpeg

632 ms

which-statistical-test-1024x563.jpg

which-statistical-test-1024x563.jpg

576 ms

r-charts-cheatsheet-banner-1024x683.jpg

r-charts-cheatsheet-banner-1024x683.jpg

667 ms

Rplot09-1024x621.jpeg

Rplot09-1024x621.jpeg

677 ms

staatliches-v3-latin-regular.woff

staatliches-v3-latin-regular.woff

589 ms

roboto-v20-latin-regular.woff

roboto-v20-latin-regular.woff

614 ms

sdk.js

sdk.js

5 ms

66 ms

Accessibility Review

datatricks.co.uk accessibility score

85

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

datatricks.co.uk 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

datatricks.co.uk SEO score

89

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

Links do not have descriptive text

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 Datatricks.co.uk 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 Datatricks.co.uk 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

datatricks.co.uk

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