Access bonjinsha.com. 世界の日本語教育に貢献するにほんごの凡人社

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value21.7 s

0/100

25%

SI (Speed Index)

Value16.1 s

0/100

10%

TBT (Total Blocking Time)

Value440 ms

64/100

30%

CLS (Cumulative Layout Shift)

Value0.629

9/100

15%

TTI (Time to Interactive)

Value18.4 s

3/100

10%

bonjinsha.com

566 ms

bonjinsha.com

2009 ms

gtm.js

60 ms

jquery.1.8.3.min.js

937 ms

jquery-ui-1.10.4.custom.min.js

1134 ms

Our browser made a total of 138 requests to load all elements on the main page. We found that 95% of them (131 requests) were addressed to the original Bonjinsha.com, 1% (2 requests) were made to Cdnjs.cloudflare.com and 1% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (6.5 sec) belongs to the original domain Bonjinsha.com.

Content Size

3.9 MB

After Optimization

3.6 MB

In fact, the total size of Bonjinsha.com main page is 3.9 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. 60% of websites need less resources to load. Images take 3.7 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 46.0 kB

Original 55.4 kB
After minification 54.1 kB
After compression 9.4 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 46.0 kB or 83% of the original size.

Image Optimization

-6%

Potential reduce by 239.3 kB

Original 3.7 MB
After minification 3.5 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. Bonjinsha images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 4.4 kB

Original 127.2 kB
After minification 126.6 kB
After compression 122.8 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

-15%

Potential reduce by 2.4 kB

Original 15.7 kB
After minification 15.7 kB
After compression 13.3 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. Bonjinsha.com needs all CSS files to be minified and compressed as it can save up to 2.4 kB or 15% of the original size.

Requests Now

134

After Optimization

112

The browser has sent 134 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bonjinsha. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

JA
Language Claimed

JA
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bonjinsha.com can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that Bonjinsha.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

bonjinsha.com

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

Report Summary

Performance

Accessibility

Best Practices

SEO

世界の日本語教育に貢献するにほんごの凡人社

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

bonjinsha.com

bonjinsha.com

gtm.js

jquery.1.8.3.min.js

jquery-ui-1.10.4.custom.min.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

bonjinsha.com

bonjinsha.com

gtm.js

jquery.1.8.3.min.js

jquery-ui-1.10.4.custom.min.js

jquery.ui.datepicker-ja.js

mouseon.js

sm_scroll.js

jquery.cookie.js

jquery.dcjqaccordion.2.7.min.js

jquery.jcarousel.js

checklogin.js

jquery-ui-1.10.4.min.css

layout.css

pages.css

jquery.sidr.light.css

easySlider1.7.js

lightbox-2.6.min.js

lightbox.css

cart.js

goods.js

customers.js

no_image.js

mediaelement-and-player.js

mediaelementplayer.css

close.png

loading.gif

prev.png

next.png

head_bg.gif

logo.gif

bt_guide.gif

bt_green_l.gif

bt_gocart_l.gif

bt_green_r.gif

top_img_weeklyj.jpg

top_img_kanjitamago.jpg

top_img_interaction.jpg

top_img_senmon_nihongo.jpg

top_img_JBRIDGE.jpg

top_img_dontr.jpg

top_img_dokkai_training.jpg

top_img_dekirunihongo.jpg