11.4 sec in total
526 ms
10.2 sec
666 ms
Welcome to system.bookscan.co.jp homepage info - get ready to check System BOOKSCAN best content for Japan right away, or after learning these important things about system.bookscan.co.jp
書籍・蔵書の電子書籍化サービス BOOKSCAN(ブックスキャン)。世界初 低価格で本をスキャン、オンライン上のマイ本棚で管理。ブックスキャンは「世界中の本好きのために」ファイル名変更、OCR(透明テキスト)、DVD-R納品などオプションサービスを提供しています。
Visit system.bookscan.co.jpWe analyzed System.bookscan.co.jp page load time and found that the first response time was 526 ms and then it took 10.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
system.bookscan.co.jp performance score
name
value
score
weighting
Value5.8 s
5/100
10%
Value8.8 s
1/100
25%
Value10.7 s
7/100
10%
Value40 ms
100/100
30%
Value0.29
41/100
15%
Value7.2 s
50/100
10%
526 ms
536 ms
1957 ms
178 ms
354 ms
Our browser made a total of 82 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original System.bookscan.co.jp, 59% (48 requests) were made to Interview-bookscan.s3-ap-northeast-1.amazonaws.com and 34% (28 requests) were made to Bookscan.co.jp. The less responsive or slowest element that took the longest time to load (3.6 sec) relates to the external source Interview-bookscan.s3-ap-northeast-1.amazonaws.com.
Page size can be reduced by 294.0 kB (6%)
5.3 MB
5.0 MB
In fact, the total size of System.bookscan.co.jp main page is 5.3 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. 50% of websites need less resources to load. Images take 5.0 MB which makes up the majority of the site volume.
Potential reduce by 29.4 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 29.4 kB or 78% of the original size.
Potential reduce by 87.0 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. System BOOKSCAN images are well optimized though.
Potential reduce by 134.7 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 134.7 kB or 62% of the original size.
Potential reduce by 42.8 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. System.bookscan.co.jp needs all CSS files to be minified and compressed as it can save up to 42.8 kB or 83% of the original size.
Number of requests can be reduced by 16 (20%)
79
63
The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of System BOOKSCAN. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
system.bookscan.co.jp
526 ms
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system.bookscan.co.jp accessibility score
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
system.bookscan.co.jp best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
system.bookscan.co.jp SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document doesn't use legible font sizes
JA
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise System.bookscan.co.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 System.bookscan.co.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.
system.bookscan.co.jp
Open Graph data is detected on the main page of System BOOKSCAN. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: