Access surala.jp. オンライン・タブレット教材は家庭学習のすらら

name

value

score

weighting

FCP (First Contentful Paint)

Value7.5 s

1/100

10%

LCP (Largest Contentful Paint)

Value15.0 s

0/100

25%

SI (Speed Index)

Value15.0 s

1/100

10%

TBT (Total Blocking Time)

Value650 ms

46/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value12.2 s

15/100

10%

surala.jp

1309 ms

normalize.css

513 ms

jquery.fancybox.css

527 ms

jquery.jscrollpane.css

354 ms

contents.css

721 ms

Our browser made a total of 124 requests to load all elements on the main page. We found that 56% of them (70 requests) were addressed to the original Surala.jp, 18% (22 requests) were made to Static.xx.fbcdn.net and 9% (11 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Surala.jp.

Content Size

3.2 MB

After Optimization

2.6 MB

In fact, the total size of Surala.jp main page is 3.2 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. 75% 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. Images take 2.9 MB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 17.2 kB

Original 24.2 kB
After minification 23.3 kB
After compression 7.1 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 17.2 kB or 71% of the original size.

Image Optimization

-13%

Potential reduce by 370.4 kB

Original 2.9 MB
After minification 2.5 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. Obviously, Surala needs image optimization as it can save up to 370.4 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-60%

Potential reduce by 169.0 kB

Original 279.8 kB
After minification 273.9 kB
After compression 110.8 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 169.0 kB or 60% of the original size.

CSS Optimization

-81%

Potential reduce by 34.9 kB

Original 43.0 kB
After minification 30.1 kB
After compression 8.1 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. Surala.jp needs all CSS files to be minified and compressed as it can save up to 34.9 kB or 81% of the original size.

Requests Now

121

After Optimization

The browser has sent 121 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Surala. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 13 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

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

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

High

Issues were logged in the Issues panel in Chrome Devtools

Search Engine Optimization Advices

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

High

Links do not have descriptive text

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

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 Surala.jp 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 Surala.jp 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

surala.jp

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

Report Summary

Performance

Accessibility

Best Practices

SEO

オンライン・タブレット教材は家庭学習のすらら

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

surala.jp

normalize.css

jquery.fancybox.css

jquery.jscrollpane.css

contents.css

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

surala.jp

normalize.css

jquery.fancybox.css

jquery.jscrollpane.css

contents.css

index.css

conversion.js

s_retargeting.js

jquery-1.11.2.min.js

jquery-ui.min.js

jquery.fancybox.pack.js

jquery.jscrollpane.min.js

jquery.mousewheel.js

contents.js

index.js

plusone.js

logo.png

contact.png

lable_login.png

lable_trial.png

btn_menu.png

lable_contact.png

btn_close.png

bg_gnavi_sep.png

icon_home.png

bg_main0.png

bg_main.jpg

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btn_prev.png

btn_next.png

banner3.png

banner_fresh01.png

banner_suken.png

banner_toeic_03.png

news_h0.png

news_illust0.png

bg_glid.png

label_list.png