3.6 sec in total
751 ms
2.6 sec
229 ms
Visit bigblue.gr.jp now to see the best up-to-date Big BLUE content for Japan and also check out these interesting facts you probably never knew about bigblue.gr.jp
神奈川でダイビングライセンス取得なら BIG BLUE。神奈川県のBIG BLUEが伊豆で格安のツアーと体験ダイビングを提供し ています。
Visit bigblue.gr.jpWe analyzed Bigblue.gr.jp page load time and found that the first response time was 751 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
bigblue.gr.jp performance score
name
value
score
weighting
Value5.4 s
7/100
10%
Value13.6 s
0/100
25%
Value13.0 s
2/100
10%
Value27,850 ms
0/100
30%
Value0.386
27/100
15%
Value38.8 s
0/100
10%
751 ms
348 ms
76 ms
965 ms
1689 ms
Our browser made a total of 28 requests to load all elements on the main page. We found that 54% of them (15 requests) were addressed to the original Bigblue.gr.jp, 11% (3 requests) were made to S.ytimg.com and 7% (2 requests) were made to Staticxx.facebook.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Bigblue.gr.jp.
Page size can be reduced by 355.8 kB (29%)
1.2 MB
864.0 kB
In fact, the total size of Bigblue.gr.jp main page is 1.2 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. 30% of websites need less resources to load. Images take 744.0 kB which makes up the majority of the site volume.
Potential reduce by 15.2 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 15.2 kB or 71% of the original size.
Potential reduce by 1.1 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. Big BLUE images are well optimized though.
Potential reduce by 134.4 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 134.4 kB or 65% of the original size.
Potential reduce by 205.1 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. Bigblue.gr.jp needs all CSS files to be minified and compressed as it can save up to 205.1 kB or 83% of the original size.
Number of requests can be reduced by 4 (16%)
25
21
The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Big BLUE. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
bigblue.gr.jp
751 ms
base.css
348 ms
all.js
76 ms
sb_y_logo.gif
965 ms
bg_h1.jpg
1689 ms
bb-banner.jpg
1422 ms
autumn_bb-banner.jpg
1222 ms
bg_menu-green-l.gif
371 ms
btn_lesson.gif
540 ms
bg_h3-photo.gif
373 ms
bg_h3-link.gif
534 ms
bg_h3-shopping.gif
556 ms
diving_ks.jpg
1060 ms
diving_ld.jpg
1073 ms
diving_st.jpg
1093 ms
hr_glay.gif
1234 ms
bg_footer.jpg
1430 ms
JbPAHxGMz-c
101 ms
33 ms
xd_arbiter.php
76 ms
xd_arbiter.php
286 ms
www-embed-player-vfl8xM8me.css
64 ms
www-embed-player.js
86 ms
base.js
151 ms
fBnyGA8Aionz5086-mElmoOSPUuyQ1M9Un647_EjucU.js
30 ms
ad_status.js
59 ms
2UX7WLTfW3W8TclTUvlFyQ.woff
82 ms
RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff
92 ms
bigblue.gr.jp accessibility score
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
<frame> or <iframe> elements do not have a title
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
bigblue.gr.jp best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Browser errors were logged to the console
bigblue.gr.jp SEO score
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
JA
N/A
SHIFT_JIS
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bigblue.gr.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese 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 Bigblue.gr.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.
bigblue.gr.jp
Open Graph description is not detected on the main page of Big BLUE. 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: