Access jal.co.jp. JAL｜国内線/国際線の航空券・飛行機チケット予約

jal.co.jp

554 ms

www.jal.co.jp

2480 ms

category_top.css

1081 ms

perfect-scrollbar.css

350 ms

jquery-ui.custom.css

525 ms

Our browser made a total of 147 requests to load all elements on the main page. We found that 84% of them (124 requests) were addressed to the original Jal.co.jp, 2% (3 requests) were made to B97.yahoo.co.jp and 1% (2 requests) were made to Facebook.com. The less responsive or slowest element that took the longest time to load (2.6 sec) belongs to the original domain Jal.co.jp.

Content Size

6.1 MB

After Optimization

4.1 MB

In fact, the total size of Jal.co.jp main page is 6.1 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. 55% of websites need less resources to load. Images take 3.8 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 193.8 kB

Original 227.3 kB
After minification 225.7 kB
After compression 33.5 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 193.8 kB or 85% of the original size.

Image Optimization

-4%

Potential reduce by 152.0 kB

Original 3.8 MB
After minification 3.6 MB

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. JAL images are well optimized though.

JavaScript Optimization

-76%

Potential reduce by 995.3 kB

Original 1.3 MB
After minification 1.1 MB
After compression 321.8 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 995.3 kB or 76% of the original size.

CSS Optimization

-79%

Potential reduce by 667.5 kB

Original 846.3 kB
After minification 814.2 kB
After compression 178.8 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. Jal.co.jp needs all CSS files to be minified and compressed as it can save up to 667.5 kB or 79% of the original size.

Requests Now

143

After Optimization

The browser has sent 143 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JAL. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 54 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.