Tools & Wizards About Us
tetris.org screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 58

    Accessibility

    Visual factors better than
    that of 25% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

tetris.org

Tetris | The addictive puzzle game that started it all!

Page Load Speed

2.2 sec in total

First Response

178 ms

Resources Loaded

1.6 sec

Page Rendered

415 ms

tetris.org screenshot

About Website

Click here to check amazing Tetris content. Otherwise, check out these important facts you probably never knew about tetris.org

Visit the official Tetris® website to play FREE online Tetris, get game and merchandise updates, and read about global Tetris events.

Visit tetris.org

Key Findings

We analyzed Tetris.org page load time and found that the first response time was 178 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

tetris.org performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

77/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

4/100

25%

SI (Speed Index)

Value7.9 s

23/100

10%

TBT (Total Blocking Time)

Value10,060 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.076

95/100

15%

TTI (Time to Interactive)

Value21.4 s

1/100

10%

Network Requests Diagram

tetris.org

178 ms

style.css

38 ms

app-built.js

63 ms

js

188 ms

gpt.js

46 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Tetris.org, 54% (57 requests) were made to Tetris.com and 10% (11 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (966 ms) relates to the external source Syndication.twitter.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 95.3 kB (18%)

Content Size

525.2 kB

After Optimization

429.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tetris.org main page is 525.2 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. 65% of websites need less resources to load. Javascripts take 444.9 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 55.0 kB

  • Original 69.1 kB
  • After minification 61.1 kB
  • After compression 14.1 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 8.0 kB, which is 12% 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 55.0 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 1 B

  • Original 170 B
  • After minification 169 B

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. Tetris images are well optimized though.

JavaScript Optimization

-9%

Potential reduce by 40.2 kB

  • Original 444.9 kB
  • After minification 444.9 kB
  • After compression 404.6 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

-0%

Potential reduce by 0 B

  • Original 11.1 kB
  • After minification 11.1 kB
  • After compression 11.1 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. Tetris.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 39 (72%)

Requests Now

54

After Optimization

15

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tetris. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

tetris.org

tetris.org

178 ms

style.css

style.css

38 ms

app-built.js

app-built.js

63 ms

js

js

188 ms

gpt.js

gpt.js

46 ms

widgets.js

widgets.js

6 ms

cookieControl-8.x.min.js

cookieControl-8.x.min.js

175 ms

addthis_widget.js

addthis_widget.js

139 ms

analytics.js

analytics.js

172 ms

tetriminos-banner.png

tetriminos-banner.png

131 ms

project-logo.png

project-logo.png

147 ms

tetris-appletv-nowstreaming.jpg

tetris-appletv-nowstreaming.jpg

150 ms

e60-playnow-feature.jpg

e60-playnow-feature.jpg

150 ms

tetris-mobile-hero-1560x639.jpg

tetris-mobile-hero-1560x639.jpg

150 ms

spreadshirtxtetris.jpg

spreadshirtxtetris.jpg

149 ms

header-website.jpg

header-website.jpg

151 ms

untitled-design-22-.png

untitled-design-22-.png

151 ms

kura2-blogroll-688x387-1-688x387_688x387.png

kura2-blogroll-688x387-1-688x387_688x387.png

169 ms

spacer-16x9.png

spacer-16x9.png

170 ms

tetris-podcast-688x387-v2_688x387.jpg

tetris-podcast-688x387-v2_688x387.jpg

168 ms

dt-tetris-688x387_688x387.jpg

dt-tetris-688x387_688x387.jpg

170 ms

tec-ps5-tetriscom-688x387_688x387.png

tec-ps5-tetriscom-688x387_688x387.png

168 ms

tetris-movie-banner-template-688x387_688x387.jpg

tetris-movie-banner-template-688x387_688x387.jpg

169 ms

play-button.svg

play-button.svg

192 ms

tetris-game-boy-nso-688x387_688x387.jpg

tetris-game-boy-nso-688x387_688x387.jpg

187 ms

slide5_688x387.jpeg

slide5_688x387.jpeg

189 ms

tgm-blogroll-688x387_688x387.jpg

tgm-blogroll-688x387_688x387.jpg

186 ms

madlab-blogroll-688x387_688x387.jpg

madlab-blogroll-688x387_688x387.jpg

188 ms

t99-maximuscup30-688x387_688x387.jpg

t99-maximuscup30-688x387_688x387.jpg

187 ms

tec-lrg-688x387-v2_688x387.jpg

tec-lrg-688x387-v2_688x387.jpg

193 ms

t99-maximuscup29-688x387_688x387.jpg

t99-maximuscup29-688x387_688x387.jpg

193 ms

nyt-022522-blogroll-688x387_688x387.png

nyt-022522-blogroll-688x387_688x387.png

194 ms

blogroll-688x387_688x387.png

blogroll-688x387_688x387.png

195 ms

footer-tetriminos.png

footer-tetriminos.png

193 ms

t99-maximuscup28-688x387_688x387.jpg

t99-maximuscup28-688x387_688x387.jpg

195 ms

t99-maximuscup27-688x387_688x387.jpg

t99-maximuscup27-688x387_688x387.jpg

195 ms

kura-sushi-v2-launch-688x387_688x387.jpg

kura-sushi-v2-launch-688x387_688x387.jpg

194 ms

feelin-lucky-sweepstakes-header_688x387.jpg

feelin-lucky-sweepstakes-header_688x387.jpg

245 ms

19-01-16-tetris-theme-article_688x387.jpg

19-01-16-tetris-theme-article_688x387.jpg

248 ms

tetris-holiday-gift-feature_688x387.jpg

tetris-holiday-gift-feature_688x387.jpg

246 ms

19-04-18-look-a-like-day-rectangular-v2_688x387.jpg

19-04-18-look-a-like-day-rectangular-v2_688x387.jpg

246 ms

footer-pattern.png

footer-pattern.png

248 ms

footer-logo.png

footer-logo.png

247 ms

gc-emblem-black.svg

gc-emblem-black.svg

249 ms

pubads_impl.js

pubads_impl.js

110 ms

MuseoSans500.otf

MuseoSans500.otf

158 ms

MuseoSans100.otf

MuseoSans100.otf

123 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

40 ms

Museo700.otf

Museo700.otf

108 ms

nucleo-mini.woff

nucleo-mini.woff

165 ms

nucleo-outline.woff

nucleo-outline.woff

454 ms

nucleo-glyph.woff

nucleo-glyph.woff

310 ms

tetrimino-red.svg

tetrimino-red.svg

104 ms

tetrimino-blue.svg

tetrimino-blue.svg

104 ms

tetrimino-orange.svg

tetrimino-orange.svg

105 ms

collect

collect

26 ms

tetrimino-cyan.svg

tetrimino-cyan.svg

88 ms

tetrimino-green.svg

tetrimino-green.svg

89 ms

tetrimino-purple.svg

tetrimino-purple.svg

89 ms

tetrimino-yellow.svg

tetrimino-yellow.svg

129 ms

settings

settings

144 ms

15125915

15125915

68 ms

samsung-stackers-tetris-688x387_688x387.jpg

samsung-stackers-tetris-688x387_688x387.jpg

8 ms

playstudios-688x387_688x387.jpg

playstudios-688x387_688x387.jpg

16 ms

practice-and-patience-header_688x387.jpg

practice-and-patience-header_688x387.jpg

8 ms

ps4-tetris-effect-deals_688x387.jpg

ps4-tetris-effect-deals_688x387.jpg

18 ms

prev.png

prev.png

16 ms

next.png

next.png

26 ms

loading.gif

loading.gif

27 ms

timeline.e108540dddc96e4b707f5cf259a582d7.js

timeline.e108540dddc96e4b707f5cf259a582d7.js

2 ms

Tetris_Official

Tetris_Official

966 ms

ads

ads

445 ms

container.html

container.html

28 ms

sodar

sodar

34 ms

sodar2.js

sodar2.js

17 ms

runner.html

runner.html

5 ms

aframe

aframe

36 ms

Y2eLdh7uTCz-ICiwQqswOvqqgEkYT7dK-UeEF3PDaOw.js

Y2eLdh7uTCz-ICiwQqswOvqqgEkYT7dK-UeEF3PDaOw.js

4 ms

gen_204

gen_204

20 ms

pixel

pixel

50 ms

dv3.js

dv3.js

34 ms

171000.js

171000.js

46 ms

window_focus.js

window_focus.js

7 ms

qs_click_protection.js

qs_click_protection.js

12 ms

ufs_web_display.js

ufs_web_display.js

20 ms

ad

ad

51 ms

pixel

pixel

36 ms

pixel

pixel

34 ms

icon.png

icon.png

77 ms

abg_lite.js

abg_lite.js

77 ms

Q12zgMmT.js

Q12zgMmT.js

77 ms

bounce

bounce

12 ms

rum

rum

20 ms

pixel

pixel

19 ms

pixel

pixel

18 ms

62bHydCX.html

62bHydCX.html

8 ms

rum

rum

24 ms

activeview

activeview

24 ms

polyfills-a40ef1678bae11e696dba45124eadd70.js

polyfills-a40ef1678bae11e696dba45124eadd70.js

7 ms

runtime-b1c52fd0a13ead5fcf6b.js

runtime-b1c52fd0a13ead5fcf6b.js

12 ms

modules-96ebc7ac3ad66d681a3d.js

modules-96ebc7ac3ad66d681a3d.js

15 ms

main-babd9234dc048fb47339.js

main-babd9234dc048fb47339.js

15 ms

_app-a9c9f1a99e4414675fb1.js

_app-a9c9f1a99e4414675fb1.js

15 ms

%5BscreenName%5D-0517bdda27d5006a5a2d.js

%5BscreenName%5D-0517bdda27d5006a5a2d.js

15 ms

_buildManifest.js

_buildManifest.js

14 ms

_ssgManifest.js

_ssgManifest.js

14 ms

Accessibility Review

tetris.org accessibility score

58

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

tetris.org 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

tetris.org SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tetris.org 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 Tetris.org 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

tetris.org

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