Tools & Wizards About Us

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

learnscience.academy

Homeschool Science Online for 7-12th Grades - Learn Science

Page Load Speed

2.6 sec in total

First Response

333 ms

Resources Loaded

1.8 sec

Page Rendered

510 ms

About Website

Visit learnscience.academy now to see the best up-to-date Learn Science content and also check out these interesting facts you probably never knew about learnscience.academy

Get award-winning science courses for your homeschool. Guided applied science courses, textbooks, videos, homework and labs. Signing up is easy as 1-2-3.

Visit learnscience.academy

Key Findings

We analyzed Learnscience.academy page load time and found that the first response time was 333 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

learnscience.academy performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value7.0 s

6/100

25%

SI (Speed Index)

Value8.4 s

18/100

10%

TBT (Total Blocking Time)

Value3,920 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.099

90/100

15%

TTI (Time to Interactive)

Value23.5 s

1/100

10%

Network Requests Diagram

learnscience.academy

333 ms

learnscience.academy

233 ms

6032v.css

64 ms

6032v.css

121 ms

6032v.css

162 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 55% of them (41 requests) were addressed to the original Learnscience.academy, 16% (12 requests) were made to Fonts.gstatic.com and 8% (6 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (663 ms) belongs to the original domain Learnscience.academy.

Page Optimization Overview & Recommendations

Page size can be reduced by 50.9 kB (5%)

Content Size

1.0 MB

After Optimization

986.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Learnscience.academy main page is 1.0 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 728.7 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 43.6 kB

  • Original 57.4 kB
  • After minification 55.0 kB
  • After compression 13.8 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. 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 43.6 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 2.1 kB

  • Original 728.7 kB
  • After minification 726.7 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. Learn Science images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 5.2 kB

  • Original 191.5 kB
  • After minification 190.9 kB
  • After compression 186.3 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.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 59.9 kB
  • After minification 59.9 kB
  • After compression 59.9 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. Learnscience.academy has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 27 (51%)

Requests Now

53

After Optimization

26

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Learn Science. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

learnscience.academy accessibility score

82

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

Links do not have a discernible name

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

learnscience.academy 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

learnscience.academy SEO score

98

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

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 Learnscience.academy 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 Learnscience.academy 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 data is detected on the main page of Learn Science. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: