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Report Summary

  • 23

    Performance

    Renders faster than
    41% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 79% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

schoolofcode.com

School of Code - Free Coding Bootcamp For Everyone | School of Code

Page Load Speed

1.9 sec in total

First Response

184 ms

Resources Loaded

1.6 sec

Page Rendered

130 ms

About Website

Click here to check amazing School Of Code content. Otherwise, check out these important facts you probably never knew about schoolofcode.com

School of Code aims to get more and different types of people into tech. We run a free 16-week coding bootcamp open to everyone, and we have an online collaborative coding platform that makes learning...

Visit schoolofcode.com

Key Findings

We analyzed Schoolofcode.com page load time and found that the first response time was 184 ms and then it took 1.7 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

schoolofcode.com performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value17.6 s

0/100

25%

SI (Speed Index)

Value7.3 s

29/100

10%

TBT (Total Blocking Time)

Value2,210 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value17.3 s

4/100

10%

Network Requests Diagram

schoolofcode.com

184 ms

schoolofcode.com

311 ms

www.schoolofcode.com

413 ms

css

33 ms

webpack-runtime-c314fd4d8d868b6dc528.js

15 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 38% of them (9 requests) were addressed to the original Schoolofcode.com, 21% (5 requests) were made to Youtube.com and 8% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (610 ms) belongs to the original domain Schoolofcode.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 272.4 kB (35%)

Content Size

768.4 kB

After Optimization

496.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Schoolofcode.com main page is 768.4 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. 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. Javascripts take 406.5 kB which makes up the majority of the site volume.

HTML Optimization

-61%

Potential reduce by 49.4 kB

  • Original 80.9 kB
  • After minification 80.8 kB
  • After compression 31.5 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 49.4 kB or 61% of the original size.

Image Optimization

-1%

Potential reduce by 1.6 kB

  • Original 221.2 kB
  • After minification 219.7 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. School Of Code images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 221.5 kB

  • Original 406.5 kB
  • After minification 406.5 kB
  • After compression 185.0 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 221.5 kB or 54% of the original size.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 59.8 kB
  • After minification 59.8 kB
  • After compression 59.8 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. Schoolofcode.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 10 (53%)

Requests Now

19

After Optimization

9

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of School Of Code. 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

Accessibility Review

schoolofcode.com accessibility score

92

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

schoolofcode.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

schoolofcode.com SEO score

100

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

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 Schoolofcode.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 Schoolofcode.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

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