Report Summary

  • 67

    Performance

    Renders faster than
    80% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

01sns.roundtable.jp

01 Virtual Public School

Page Load Speed

2.2 sec in total

First Response

1.1 sec

Resources Loaded

1.1 sec

Page Rendered

74 ms

01sns.roundtable.jp screenshot

About Website

Click here to check amazing 01 Sns Roundtable content for Japan. Otherwise, check out these important facts you probably never knew about 01sns.roundtable.jp

無料バーチャル学習空間構築を目指している「01 VIrtual Public School」。各学校・大学や先生方との連携による、実験授業も運営中!

Visit 01sns.roundtable.jp

Key Findings

We analyzed 01sns.roundtable.jp page load time and found that the first response time was 1.1 sec and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

01sns.roundtable.jp performance score

67

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

24/100

10%

LCP (Largest Contentful Paint)

Value4.7 s

32/100

25%

SI (Speed Index)

Value7.7 s

24/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.0 s

87/100

10%

Network Requests Diagram

01sns.roundtable.jp

1057 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to 01sns.roundtable.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain 01sns.roundtable.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 64 B (22%)

Content Size

285 B

After Optimization

221 B

In fact, the total size of 01sns.roundtable.jp main page is 285 B. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. HTML takes 285 B which makes up the majority of the site volume.

HTML Optimization

-22%

Potential reduce by 64 B

  • Original 285 B
  • After minification 284 B
  • After compression 221 B

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 64 B or 22% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Accessibility Review

01sns.roundtable.jp accessibility score

75

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

High

Image elements do not have [alt] attributes

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

01sns.roundtable.jp best practices score

58

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

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

01sns.roundtable.jp SEO score

67

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

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 01sns.roundtable.jp 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 01sns.roundtable.jp main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of 01 Sns Roundtable. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: