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ottodot.com screenshot

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

ottodot.com

Ottodot Science Programme

Page Load Speed

2 sec in total

First Response

89 ms

Resources Loaded

1.8 sec

Page Rendered

55 ms

ottodot.com screenshot

About Website

Visit ottodot.com now to see the best up-to-date Ottodot content and also check out these interesting facts you probably never knew about ottodot.com

Mastery every Science concept through Ottodot's Roblox Science learning modules. Design based on the MOE science syllabus. For kids 5-12 year olds.

Visit ottodot.com

Key Findings

We analyzed Ottodot.com page load time and found that the first response time was 89 ms and then it took 1.9 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

ottodot.com performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

63/100

10%

LCP (Largest Contentful Paint)

Value7.3 s

5/100

25%

SI (Speed Index)

Value8.3 s

19/100

10%

TBT (Total Blocking Time)

Value1,250 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value20.7 s

2/100

10%

Network Requests Diagram

www.ottodot.com

89 ms

minified.js

39 ms

focus-within-polyfill.js

74 ms

polyfill.min.js

305 ms

thunderbolt-commons.4a2008b2.bundle.min.js

57 ms

Our browser made a total of 72 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Ottodot.com, 47% (34 requests) were made to Static.wixstatic.com and 31% (22 requests) were made to Static.parastorage.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Static.wixstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 787.2 kB (51%)

Content Size

1.6 MB

After Optimization

767.0 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Ottodot.com main page is 1.6 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. 35% of websites need less resources to load. HTML takes 805.2 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 653.2 kB

  • Original 805.2 kB
  • After minification 803.3 kB
  • After compression 152.0 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 653.2 kB or 81% of the original size.

Image Optimization

-25%

Potential reduce by 133.9 kB

  • Original 531.7 kB
  • After minification 397.8 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. Obviously, Ottodot needs image optimization as it can save up to 133.9 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 80 B

  • Original 217.4 kB
  • After minification 217.4 kB
  • After compression 217.3 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 11 (22%)

Requests Now

50

After Optimization

39

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ottodot. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.ottodot.com

www.ottodot.com

89 ms

minified.js

minified.js

39 ms

focus-within-polyfill.js

focus-within-polyfill.js

74 ms

polyfill.min.js

polyfill.min.js

305 ms

thunderbolt-commons.4a2008b2.bundle.min.js

thunderbolt-commons.4a2008b2.bundle.min.js

57 ms

main.5d83208c.bundle.min.js

main.5d83208c.bundle.min.js

56 ms

lodash.min.js

lodash.min.js

57 ms

react.production.min.js

react.production.min.js

56 ms

react-dom.production.min.js

react-dom.production.min.js

57 ms

siteTags.bundle.min.js

siteTags.bundle.min.js

56 ms

wix-perf-measure.umd.min.js

wix-perf-measure.umd.min.js

58 ms

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217 ms

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413 ms

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366 ms

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414 ms

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367 ms

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418 ms

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413 ms

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493 ms

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CNA_logo.png

553 ms

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522 ms

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534 ms

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600 ms

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566 ms

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647 ms

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695 ms

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974 ms

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839 ms

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676 ms

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807 ms

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1034 ms

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919 ms

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782 ms

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939 ms

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1006 ms

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1032 ms

temasek-foundation.png

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1086 ms

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1131 ms

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1123 ms

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1194 ms

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1186 ms

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1184 ms

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1178 ms

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1227 ms

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1301 ms

xfbml.customerchat.js

xfbml.customerchat.js

241 ms

bundle.min.js

bundle.min.js

178 ms

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16 ms

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33 ms

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33 ms

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33 ms

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32 ms

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31 ms

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96 ms

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96 ms

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96 ms

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94 ms

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5 ms

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47 ms

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7 ms

right-arrow.svg

right-arrow.svg

5 ms

Accessibility Review

ottodot.com accessibility score

94

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.

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

ottodot.com 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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

ottodot.com SEO score

82

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 Ottodot.com 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 Ottodot.com 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

ottodot.com

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