Tools & Wizards About Us
stemkidsrock.com screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

stemkidsrock.com

STEM Kids Rock | Inspiring the Next Generation of STEM Leaders

Page Load Speed

1.7 sec in total

First Response

108 ms

Resources Loaded

1.5 sec

Page Rendered

82 ms

stemkidsrock.com screenshot

About Website

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

STEM Kids Rock's mission is to inspire, engage & empower the next generation of STEM leaders through early & often exposure to science. The STEM Kids Rock Free Mobile Science Centre empowers youth of ...

Visit stemkidsrock.com

Key Findings

We analyzed Stemkidsrock.com page load time and found that the first response time was 108 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

stemkidsrock.com performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value3.5 s

88/100

10%

TBT (Total Blocking Time)

Value4,070 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.374

28/100

15%

TTI (Time to Interactive)

Value18.3 s

3/100

10%

Network Requests Diagram

www.stemkidsrock.com

108 ms

minified.js

57 ms

focus-within-polyfill.js

55 ms

polyfill.min.js

256 ms

thunderbolt-commons.1e70fbb2.bundle.min.js

91 ms

Our browser made a total of 58 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Stemkidsrock.com, 34% (20 requests) were made to Static.parastorage.com and 33% (19 requests) were made to Static.wixstatic.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Static.wixstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 557.0 kB (35%)

Content Size

1.6 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Stemkidsrock.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. 55% of websites need less resources to load. Images take 741.1 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 428.8 kB

  • Original 545.9 kB
  • After minification 544.2 kB
  • After compression 117.1 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. 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 428.8 kB or 79% of the original size.

Image Optimization

-9%

Potential reduce by 66.3 kB

  • Original 741.1 kB
  • After minification 674.9 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. STEM Kids Rock images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 61.9 kB

  • Original 297.0 kB
  • After minification 297.0 kB
  • After compression 235.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 61.9 kB or 21% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (21%)

Requests Now

47

After Optimization

37

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of STEM Kids Rock. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.stemkidsrock.com

www.stemkidsrock.com

108 ms

minified.js

minified.js

57 ms

focus-within-polyfill.js

focus-within-polyfill.js

55 ms

polyfill.min.js

polyfill.min.js

256 ms

thunderbolt-commons.1e70fbb2.bundle.min.js

thunderbolt-commons.1e70fbb2.bundle.min.js

91 ms

main.42e492e1.bundle.min.js

main.42e492e1.bundle.min.js

91 ms

lodash.min.js

lodash.min.js

90 ms

react.production.min.js

react.production.min.js

92 ms

react-dom.production.min.js

react-dom.production.min.js

98 ms

siteTags.bundle.min.js

siteTags.bundle.min.js

95 ms

wix-perf-measure.umd.min.js

wix-perf-measure.umd.min.js

95 ms

81e18c_d2aa0318239140a483f3251143a66f98~mv2.png

81e18c_d2aa0318239140a483f3251143a66f98~mv2.png

403 ms

maxresdefault.jpg%202x

maxresdefault.jpg%202x

284 ms

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81e18c_651fffb9792541f9a394240e43450ace~mv2_d_5184_3888_s_4_2.jpg

498 ms

stem_kids_rock-mobile_science_centre.png

stem_kids_rock-mobile_science_centre.png

458 ms

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5e495e_0924c489542b4edd920216aea3d16eb7~mv2.png

494 ms

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IMG_4442.jpg

534 ms

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DSC06530%20(1).jpg

538 ms

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81e18c_02d65f1a3b8f45dd8c830fe01f4c40f1~mv2_d_2048_1276_s_2.jpg

647 ms

DSC08081_edited.jpg

DSC08081_edited.jpg

689 ms

81e18c_4b499d52fd864d6d8660445e8fae6003~mv2_d_2079_1977_s_2.png

81e18c_4b499d52fd864d6d8660445e8fae6003~mv2_d_2079_1977_s_2.png

740 ms

stem_kids_rock-mobile_science_centre.png

stem_kids_rock-mobile_science_centre.png

645 ms

5e495e_dcf898cc62384ae9910fd5186a37dc2f~mv2.png

5e495e_dcf898cc62384ae9910fd5186a37dc2f~mv2.png

752 ms

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778 ms

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81e18c_77da265257d44f0992beef8fc64ee5f6~mv2.png

856 ms

MAKR_Banner%20Logo%203.jpg

MAKR_Banner%20Logo%203.jpg

845 ms

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81e18c_0c3e1a2135604142b2cdf839ae89244f~mv2.png

921 ms

5e495e_e7bdf839b15c4364b9ffe2eb3595d3e1~mv2_d_1651_1594_s_2.png

5e495e_e7bdf839b15c4364b9ffe2eb3595d3e1~mv2_d_1651_1594_s_2.png

1053 ms

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5e495e_60927f568eb64da0b1e2a2259afa0d3c~mv2.png

955 ms

5e495e_e7bdf839b15c4364b9ffe2eb3595d3e1~mv2_d_1651_1594_s_2.png

5e495e_e7bdf839b15c4364b9ffe2eb3595d3e1~mv2_d_1651_1594_s_2.png

1023 ms

stem_kids_rock-mobile_science_centre.png

stem_kids_rock-mobile_science_centre.png

963 ms

maxresdefault.jpg

maxresdefault.jpg

495 ms

bundle.min.js

bundle.min.js

191 ms

03805817-4611-4dbc-8c65-0f73031c3973.woff

03805817-4611-4dbc-8c65-0f73031c3973.woff

39 ms

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38 ms

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38 ms

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b56b944e-bbe0-4450-a241-de2125d3e682.woff

38 ms

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37 ms

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kEF4nGNgYgCDfxMZpjFgAyxAzMjAxMjEXpqXaWTg5AIAYwIEbQA=

2 ms

bc176270-17fa-4c78-a343-9fe52824e501.woff

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36 ms

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88 ms

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65 ms

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133 ms

129 ms

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165 ms

deprecation-en.v5.html

deprecation-en.v5.html

7 ms

bolt-performance

bolt-performance

29 ms

deprecation-style.v5.css

deprecation-style.v5.css

14 ms

right-arrow.svg

right-arrow.svg

11 ms

Accessibility Review

stemkidsrock.com accessibility score

81

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

Best Practices

stemkidsrock.com best practices score

92

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

Page has valid source maps

SEO Factors

stemkidsrock.com SEO score

90

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

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 Stemkidsrock.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 Stemkidsrock.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

stemkidsrock.com

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