Tools & Wizards About Us
ichigojam.net screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 62

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

ichigojam.net

こどもパソコン IchigoJam - はじめてのプログラミングパソコン

Page Load Speed

3.5 sec in total

First Response

325 ms

Resources Loaded

2.6 sec

Page Rendered

553 ms

ichigojam.net screenshot

About Website

Click here to check amazing Ichigo Jam content for Japan. Otherwise, check out these important facts you probably never knew about ichigojam.net

IchigoJamは、すべてのこどもにプログラミングのきっかけを提供するべく、1,500円で買えるプログラミング専用こどもパソコンです。

Visit ichigojam.net

Key Findings

We analyzed Ichigojam.net page load time and found that the first response time was 325 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

ichigojam.net performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

39/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

17/100

25%

SI (Speed Index)

Value5.3 s

58/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.026

100/100

15%

TTI (Time to Interactive)

Value3.5 s

92/100

10%

Network Requests Diagram

ichigojam.net

325 ms

ichigojam.net

629 ms

style2.css

153 ms

header.css

306 ms

footer.css

438 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 95% of them (19 requests) were addressed to the original Ichigojam.net, 5% (1 request) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Ichigojam.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 50.3 kB (4%)

Content Size

1.4 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • CSS

In fact, the total size of Ichigojam.net main page is 1.4 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. 20% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 5.8 kB

  • Original 8.9 kB
  • After minification 7.9 kB
  • After compression 3.0 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 5.8 kB or 66% of the original size.

Image Optimization

-3%

Potential reduce by 37.3 kB

  • Original 1.4 MB
  • After minification 1.3 MB

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. Ichigo Jam images are well optimized though.

CSS Optimization

-78%

Potential reduce by 7.1 kB

  • Original 9.1 kB
  • After minification 6.3 kB
  • After compression 2.0 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. Ichigojam.net needs all CSS files to be minified and compressed as it can save up to 7.1 kB or 78% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

18

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ichigo Jam. According to our analytics all requests are already optimized.

Network Requests Diagram

ichigojam.net

ichigojam.net

325 ms

ichigojam.net

ichigojam.net

629 ms

style2.css

style2.css

153 ms

header.css

header.css

306 ms

footer.css

footer.css

438 ms

jquery-3.6.0.js

jquery-3.6.0.js

15 ms

top_img.jpg

top_img.jpg

768 ms

logo_ichigojam_color_transparent.png

logo_ichigojam_color_transparent.png

293 ms

top_handa.jpg

top_handa.jpg

842 ms

top_prog.jpg

top_prog.jpg

875 ms

top_iot.jpg

top_iot.jpg

1080 ms

top_teach.jpg

top_teach.jpg

779 ms

ichigojam_up.jpg

ichigojam_up.jpg

1090 ms

header.html

header.html

868 ms

footer.html

footer.html

884 ms

title.png

title.png

153 ms

white_logo.png

white_logo.png

147 ms

twitter.png

twitter.png

158 ms

facebook.png

facebook.png

156 ms

mail.png

mail.png

293 ms

Accessibility Review

ichigojam.net accessibility score

62

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

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

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

ichigojam.net 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

SEO Factors

ichigojam.net SEO score

92

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

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ichigojam.net can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Ichigojam.net 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

ichigojam.net

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