Tools & Wizards About Us
ardublock.ru screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

ardublock.ru

ArduBlock | Block coding platform for teaching and learning coding

Page Load Speed

6.2 sec in total

First Response

1.5 sec

Resources Loaded

4.1 sec

Page Rendered

611 ms

ardublock.ru screenshot

About Website

Click here to check amazing Ardu Block content. Otherwise, check out these important facts you probably never knew about ardublock.ru

Learn and learn coding with ArduBlock. New and improved ArduBlock design. Code for robots, smart homes like Arduino with blocks or writing C ++.

Visit ardublock.ru

Key Findings

We analyzed Ardublock.ru page load time and found that the first response time was 1.5 sec and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

ardublock.ru performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value18.8 s

0/100

25%

SI (Speed Index)

Value11.3 s

5/100

10%

TBT (Total Blocking Time)

Value2,780 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value23.6 s

1/100

10%

Network Requests Diagram

ardublock.ru

1480 ms

index.css

550 ms

cse.js

42 ms

ru.png

1350 ms

cse_element__ru.js

22 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 51% of them (26 requests) were addressed to the original Ardublock.ru, 14% (7 requests) were made to Google.com and 10% (5 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Ardublock.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.0 MB (12%)

Content Size

8.6 MB

After Optimization

7.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ardublock.ru main page is 8.6 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 8.1 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 27.1 kB

  • Original 33.7 kB
  • After minification 26.2 kB
  • After compression 6.6 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 7.5 kB, which is 22% 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 27.1 kB or 80% of the original size.

Image Optimization

-12%

Potential reduce by 959.7 kB

  • Original 8.1 MB
  • After minification 7.2 MB

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. Obviously, Ardu Block needs image optimization as it can save up to 959.7 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-3%

Potential reduce by 10.0 kB

  • Original 334.6 kB
  • After minification 334.6 kB
  • After compression 324.5 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

-39%

Potential reduce by 46.2 kB

  • Original 118.4 kB
  • After minification 103.5 kB
  • After compression 72.3 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. Ardublock.ru needs all CSS files to be minified and compressed as it can save up to 46.2 kB or 39% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (26%)

Requests Now

47

After Optimization

35

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ardu Block. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

ardublock.ru

ardublock.ru

1480 ms

index.css

index.css

550 ms

cse.js

cse.js

42 ms

ru.png

ru.png

1350 ms

cse_element__ru.js

cse_element__ru.js

22 ms

default+ru.css

default+ru.css

48 ms

default.css

default.css

49 ms

1.png

1.png

1591 ms

2.png

2.png

1761 ms

gzS5elRID_s

gzS5elRID_s

97 ms

index.js

index.js

428 ms

3.png

3.png

1372 ms

4.png

4.png

1266 ms

www-player.css

www-player.css

7 ms

www-embed-player.js

www-embed-player.js

25 ms

base.js

base.js

56 ms

ad_status.js

ad_status.js

353 ms

QIgJXlTW_ocH5BKR4VvT459F7KnrK51w4wqraUAmDYI.js

QIgJXlTW_ocH5BKR4VvT459F7KnrK51w4wqraUAmDYI.js

147 ms

embed.js

embed.js

100 ms

tag.js

tag.js

208 ms

async-ads.js

async-ads.js

50 ms

001.png

001.png

257 ms

002.png

002.png

500 ms

003.png

003.png

731 ms

004.png

004.png

1336 ms

005.png

005.png

979 ms

006.png

006.png

897 ms

018.png

018.png

999 ms

007.png

007.png

1017 ms

009.png

009.png

1216 ms

010.png

010.png

1118 ms

011.png

011.png

1143 ms

012.png

012.png

1220 ms

013.png

013.png

1236 ms

014.png

014.png

1263 ms

015.png

015.png

1570 ms

016.png

016.png

1343 ms

branding.png

branding.png

21 ms

clear.png

clear.png

166 ms

nav_logo114.png

nav_logo114.png

166 ms

font_1330860_5b6etin89fd.woff

font_1330860_5b6etin89fd.woff

1351 ms

MarkPro-Bold.otf

MarkPro-Bold.otf

1382 ms

KFOmCnqEu92Fr1Mu4mxM.woff

KFOmCnqEu92Fr1Mu4mxM.woff

174 ms

KFOlCnqEu92Fr1MmEU9fBBc-.woff

KFOlCnqEu92Fr1MmEU9fBBc-.woff

244 ms

id

id

145 ms

Create

Create

77 ms

advert.gif

advert.gif

590 ms

GenerateIT

GenerateIT

14 ms

1

1

371 ms

1

1

139 ms

sync_cookie_image_decide

sync_cookie_image_decide

135 ms

Accessibility Review

ardublock.ru accessibility score

71

Accessibility Issues

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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>).

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

ardublock.ru best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

ardublock.ru SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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

    RU

  • Encoding

    UTF-8

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

ardublock.ru

Open Graph description is not detected on the main page of Ardu Block. 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: