Jastro.or.jp Site Title
公益社団法人日本放射線腫瘍学会
Jastro.or.jp Test Results
jastro.or.jp Mobile Usability: 100/100
jastro.or.jp Mobile Speed: 59/100
Quick overview:
Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://jastro.or.jp/
...
Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 170.9KiB (70% reduction).
Compressing https://www.jastro.or.jp/shared/js/jquery-1.11.3.min.js could save 61.2KiB (65% reduction).
...
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Optimize CSS Delivery of the following:
https://www.jastro.or.jp/shared/css/layout.css
Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://www.jastro.or.jp/images/home_arw01.png (expiration not specified)
...
Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 14.2KiB (20% reduction).
Minifying https://www.jastro.or.jp/shared/css/layout.css could save 4.8KiB (22% reduction).
...
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 1.5KiB (29% reduction).
Compressing https://www.jastro.or.jp/images/home_logo.png could save 1.5KiB (29% reduction).
Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 767B (32% reduction).
Minifying https://www.jastro.or.jp/shared/js/responsive.js could save 767B (32% reduction).
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