6.3 sec in total
1.8 sec
4 sec
425 ms
Visit bst.ac.jp now to see the best up-to-date Bst content for Japan and also check out these interesting facts you probably never knew about bst.ac.jp
Founded in 1989, The British School in Tokyo is one of the oldest British international schools in Japan, providing a broad and balanced curriculum to international students in Japan aged 3 to 18 year...
Visit bst.ac.jpWe analyzed Bst.ac.jp page load time and found that the first response time was 1.8 sec and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
bst.ac.jp performance score
name
value
score
weighting
Value4.2 s
19/100
10%
Value41.0 s
0/100
25%
Value16.2 s
0/100
10%
Value3,030 ms
2/100
30%
Value0.404
25/100
15%
Value40.5 s
0/100
10%
1815 ms
176 ms
88 ms
89 ms
91 ms
Our browser made a total of 88 requests to load all elements on the main page. We found that 68% of them (60 requests) were addressed to the original Bst.ac.jp, 14% (12 requests) were made to Pbs.twimg.com and 5% (4 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Bst.ac.jp.
Page size can be reduced by 610.4 kB (32%)
1.9 MB
1.3 MB
In fact, the total size of Bst.ac.jp main page is 1.9 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. 50% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.
Potential reduce by 33.1 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 33.1 kB or 82% of the original size.
Potential reduce by 72.9 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. Bst images are well optimized though.
Potential reduce by 249.5 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 249.5 kB or 58% of the original size.
Potential reduce by 255.0 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. Bst.ac.jp needs all CSS files to be minified and compressed as it can save up to 255.0 kB or 83% of the original size.
Number of requests can be reduced by 32 (38%)
85
53
The browser has sent 85 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bst. 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 8 to 1 for CSS and as a result speed up the page load time.
www.bst.ac.jp
1815 ms
style.css
176 ms
q-and-a.css
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styles.css
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colorbox.css
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jquery.js
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jquery-migrate.min.js
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calendar.css
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swfobject.js
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jquery.min.js
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scripts.js
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jquery.colorbox-min.js
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jquery.form.js
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scripts.js
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wp-emoji-release.min.js
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timeline.47ab5d19e8ed22531abcf4f86f3ae53a.light.ltr.css
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bst.ac.jp accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-*] attributes do not match their roles
ARIA input fields do not have accessible names
ARIA toggle fields do not have accessible names
ARIA IDs are not unique
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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.
Impact
Issue
Links do not have a discernible name
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
bst.ac.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
Missing source maps for large first-party JavaScript
bst.ac.jp SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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 uses legible font sizes
Tap targets are not sized appropriately
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bst.ac.jp can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Bst.ac.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.
bst.ac.jp
Open Graph data is detected on the main page of Bst. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: