Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

r2d2.by

Welcome to R2D2.BY

Page Load Speed

2.7 sec in total

First Response

628 ms

Resources Loaded

1.9 sec

Page Rendered

130 ms

About Website

Click here to check amazing R2D2 content. Otherwise, check out these important facts you probably never knew about r2d2.by

Функции календаря, математические функции, полезные утилиты. Мобильно. Онлайн

Visit r2d2.by

Key Findings

We analyzed R2d2.by page load time and found that the first response time was 628 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

r2d2.by performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value480 ms

60/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

Network Requests Diagram

r2d2.by

628 ms

bootstrap.min.css

1033 ms

bootstrap.bundle.min.js

673 ms

style.css

414 ms

animate.css

684 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that 61% of them (11 requests) were addressed to the original R2d2.by, 17% (3 requests) were made to Use.fontawesome.com and 11% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain R2d2.by.

Page Optimization Overview & Recommendations

Page size can be reduced by 20.4 kB (22%)

Content Size

94.5 kB

After Optimization

74.1 kB

In fact, the total size of R2d2.by main page is 94.5 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. 15% of websites need less resources to load. Javascripts take 63.4 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 20.3 kB

  • Original 24.1 kB
  • After minification 18.6 kB
  • After compression 3.8 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 5.5 kB, which is 23% 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 20.3 kB or 84% of the original size.

JavaScript Optimization

-0%

Potential reduce by 21 B

  • Original 63.4 kB
  • After minification 63.4 kB
  • After compression 63.4 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

-1%

Potential reduce by 63 B

  • Original 7.0 kB
  • After minification 7.0 kB
  • After compression 6.9 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. R2d2.by has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 12 (86%)

Requests Now

14

After Optimization

2

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of R2D2. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

r2d2.by 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.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

r2d2.by 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

High

Page has valid source maps

SEO Factors

r2d2.by SEO score

100

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

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise R2d2.by can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it does not match the claimed English language. Our system also found out that R2d2.by 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 description is not detected on the main page of R2D2. 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: