Tools & Wizards About Us
renshuu.org screenshot

Report Summary

  • 37

    Performance

    Renders faster than
    57% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

renshuu.org

renshuu.org

Page Load Speed

2.4 sec in total

First Response

160 ms

Resources Loaded

2.1 sec

Page Rendered

139 ms

renshuu.org screenshot

About Website

Visit renshuu.org now to see the best up-to-date Renshuu content for United States and also check out these interesting facts you probably never knew about renshuu.org

Visit renshuu.org

Key Findings

We analyzed Renshuu.org page load time and found that the first response time was 160 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 40% of websites can load faster.

Performance Metrics

renshuu.org performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

11/100

10%

LCP (Largest Contentful Paint)

Value7.0 s

6/100

25%

SI (Speed Index)

Value5.9 s

47/100

10%

TBT (Total Blocking Time)

Value630 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value0.178

68/100

15%

TTI (Time to Interactive)

Value7.5 s

47/100

10%

Network Requests Diagram

renshuu.org

160 ms

www.renshuu.org

396 ms

pc.20160217.css

891 ms

main.20160228.js

553 ms

logo2.png

69 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that 77% of them (10 requests) were addressed to the original Renshuu.org, 8% (1 request) were made to Connect.facebook.net and 8% (1 request) were made to Facebook.com. The less responsive or slowest element that took the longest time to load (891 ms) belongs to the original domain Renshuu.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 302.2 kB (45%)

Content Size

673.0 kB

After Optimization

370.9 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Renshuu.org main page is 673.0 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. 15% of websites need less resources to load. CSS take 555.0 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 37.9 kB

  • Original 55.1 kB
  • After minification 52.5 kB
  • After compression 17.1 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 37.9 kB or 69% of the original size.

Image Optimization

-26%

Potential reduce by 16.6 kB

  • Original 62.9 kB
  • After minification 46.3 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. Obviously, Renshuu needs image optimization as it can save up to 16.6 kB or 26% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-45%

Potential reduce by 247.6 kB

  • Original 555.0 kB
  • After minification 519.7 kB
  • After compression 307.4 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. Renshuu.org needs all CSS files to be minified and compressed as it can save up to 247.6 kB or 45% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

11

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Renshuu. According to our analytics all requests are already optimized.

Network Requests Diagram

renshuu.org

renshuu.org

160 ms

www.renshuu.org

www.renshuu.org

396 ms

pc.20160217.css

pc.20160217.css

891 ms

main.20160228.js

main.20160228.js

553 ms

logo2.png

logo2.png

69 ms

svg_sheet.svg

svg_sheet.svg

113 ms

kao_ponter.png

kao_ponter.png

178 ms

kao_studying.png

kao_studying.png

269 ms

kao_crossword.png

kao_crossword.png

206 ms

kao_community.png

kao_community.png

207 ms

sdk.js

sdk.js

24 ms

151 ms

xd_arbiter.php

xd_arbiter.php

45 ms

Accessibility Review

renshuu.org accessibility score

66

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA progressbar elements do not have accessible names.

High

ARIA IDs are not unique

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

Form elements do not have associated labels

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

[id] attributes on active, focusable elements are not unique

Best Practices

renshuu.org best practices score

67

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

renshuu.org SEO score

83

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

    EN

  • Language Claimed

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Renshuu.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Japanese language. Our system also found out that Renshuu.org 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

renshuu.org

Open Graph description is not detected on the main page of Renshuu. 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: