Access brush-up.jp. 日本全国の資格・講座一覧｜社会人向け資格情報サイトBrushUP学び

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value12.8 s

0/100

25%

SI (Speed Index)

Value11.3 s

5/100

10%

TBT (Total Blocking Time)

Value2,350 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value16.6 s

5/100

10%

brush-up.jp

400 ms

www.brush-up.jp

950 ms

text_default.css

372 ms

styles.css

395 ms

home_renew2014.css

396 ms

Our browser made a total of 108 requests to load all elements on the main page. We found that 42% of them (45 requests) were addressed to the original Brush-up.jp, 4% (4 requests) were made to Google.com and 3% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Brush-up.jp.

Content Size

434.3 kB

After Optimization

303.7 kB

In fact, the total size of Brush-up.jp main page is 434.3 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. 30% of websites need less resources to load. Images take 196.3 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 39.8 kB

Original 51.6 kB
After minification 43.5 kB
After compression 11.8 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. This page needs HTML code to be minified as it can gain 8.1 kB, which is 16% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 39.8 kB or 77% of the original size.

Image Optimization

-1%

Potential reduce by 2.6 kB

Original 196.3 kB
After minification 193.7 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. Brush Up images are well optimized though.

JavaScript Optimization

-36%

Potential reduce by 52.1 kB

Original 143.2 kB
After minification 141.2 kB
After compression 91.1 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 52.1 kB or 36% of the original size.

CSS Optimization

-84%

Potential reduce by 36.2 kB

Original 43.3 kB
After minification 38.5 kB
After compression 7.1 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. Brush-up.jp needs all CSS files to be minified and compressed as it can save up to 36.2 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 82 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Brush Up. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 5 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

Form elements do not have associated labels

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

Page has valid source maps

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

SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Brush-up.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 Brush-up.jp main page’s claimed encoding is shift_jis. 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

brush-up.jp

Open Graph description is not detected on the main page of Brush Up. 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

日本全国の資格・講座一覧｜社会人向け資格情報サイトBrushUP学び

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

brush-up.jp

www.brush-up.jp

text_default.css

styles.css

home_renew2014.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

brush-up.jp

www.brush-up.jp

text_default.css

styles.css

home_renew2014.css

text_change.js

jsapi

swap_top.js

tile.js

jquery.min.js

ld.js

conversion.js

s_retargeting.js

header.png

logo.gif

1509_reputation_120.gif

1601ranking.png

1512recreation.gif

1601nichii.jpg

1309nichii.jpg

1601Facebook.png

bgGrDot2014.gif

btn.png

topIconJunle2014.gif

common2014.png

tell.gif

2230.jpg

2418.jpg

2233.png

2460.jpg

icon_mg.gif

19.gif

18.jpg

topCaptionIcon2014.gif

1725.gif

2097.jpg

2350.gif

2061.gif

mailmag.jpg

butv.png

BUbiz_top.jpg

bgGrBor2014.gif

rank_up.gif