9.9 sec in total
Click here to check amazing Bookoffonline content for Japan. Otherwise, check out these important facts you probably never knew about bookoffonline.co.jp
We analyzed Bookoffonline.co.jp page load time and found that the first response time was 369 ms and then it took 9.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
bookoffonline.co.jp performance score
Our browser made a total of 144 requests to load all elements on the main page. We found that 84% of them (121 requests) were addressed to the original Bookoffonline.co.jp, 3% (4 requests) were made to Tracer31.a-cast.jp and 2% (3 requests) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (2.6 sec) belongs to the original domain Bookoffonline.co.jp.
Page size can be reduced by 775.4 kB (52%)
In fact, the total size of Bookoffonline.co.jp main page is 1.5 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. 35% of websites need less resources to load. Images take 556.6 kB which makes up the majority of the site volume.
Potential reduce by 97.9 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 16.6 kB, which is 14% 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 97.9 kB or 82% of the original size.
Potential reduce by 27.0 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. Bookoffonline images are well optimized though.
Potential reduce by 197.4 kB
Potential reduce by 453.1 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. Bookoffonline.co.jp needs all CSS files to be minified and compressed as it can save up to 453.1 kB or 87% of the original size.
Number of requests can be reduced by 75 (53%)
bookoffonline.co.jp accessibility score
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
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.
Links do not have a discernible name
These items highlight common accessibility best practices.
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
bookoffonline.co.jp best practices score
Trust and Safety
Does not use HTTPS
Ensure CSP is effective against XSS attacks
Displays images with incorrect aspect ratio
Browser errors were logged to the console
bookoffonline.co.jp SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
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/).
Document uses legible font sizes
Tap targets are not sized appropriately
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bookoffonline.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 Bookoffonline.co.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.
Open Graph description is not detected on the main page of Bookoffonline. 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: