8.1 sec in total
2.1 sec
5.6 sec
347 ms
Click here to check amazing Xfel Riken content for China. Otherwise, check out these important facts you probably never knew about xfel.riken.jp
X線自由電子レーザー - 国家基幹技術 X線自由電子レーザー XFEL SACLAで広がる未来
Visit xfel.riken.jpWe analyzed Xfel.riken.jp page load time and found that the first response time was 2.1 sec and then it took 6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
xfel.riken.jp performance score
name
value
score
weighting
Value2.2 s
79/100
10%
Value7.8 s
3/100
25%
Value5.2 s
60/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value3.1 s
95/100
10%
2139 ms
405 ms
424 ms
420 ms
422 ms
Our browser made a total of 52 requests to load all elements on the main page. We found that all of those requests were addressed to Xfel.riken.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Xfel.riken.jp.
Page size can be reduced by 490.5 kB (31%)
1.6 MB
1.1 MB
In fact, the total size of Xfel.riken.jp main page is 1.6 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. 25% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.
Potential reduce by 141.5 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. This page needs HTML code to be minified as it can gain 86.2 kB, which is 57% 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 141.5 kB or 94% of the original size.
Potential reduce by 29.6 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. Xfel Riken images are well optimized though.
Potential reduce by 267.0 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 267.0 kB or 73% of the original size.
Potential reduce by 52.4 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. Xfel.riken.jp needs all CSS files to be minified and compressed as it can save up to 52.4 kB or 88% of the original size.
Number of requests can be reduced by 25 (49%)
51
26
The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Xfel Riken. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
xfel.riken.jp
2139 ms
base.css
405 ms
font_s.css
424 ms
font_m.css
420 ms
font_l.css
422 ms
smooth.js
457 ms
base.js
471 ms
jquery-1.2.3.min.js
811 ms
menu.js
627 ms
site_setting.js
630 ms
daialog.css
637 ms
jquery-1.5.1.min.js
932 ms
jquery-ui-1.8.11.custom.min.js
1200 ms
sacla.js
835 ms
navi.js
840 ms
m01.js
646 ms
footer_rogo_1.js
806 ms
normal.css
646 ms
table.css
649 ms
box.css
665 ms
gallery.css
757 ms
bg.gif
216 ms
bit.gif
211 ms
rogo.gif
421 ms
mojisize.gif
203 ms
japanese.gif
236 ms
english.gif
228 ms
sitemap.gif
404 ms
contact.gif
418 ms
mainpageimg.jpg
2383 ms
newsrelease1.gif
454 ms
newsline.gif
468 ms
newsrelease2.gif
603 ms
newsrelease3.gif
626 ms
newsrelease4.gif
627 ms
menu01.gif
621 ms
menu02.gif
641 ms
menu03.gif
744 ms
menu04.gif
776 ms
menu07.gif
776 ms
menu05.gif
847 ms
menu06.gif
875 ms
pico-big.jpg
1061 ms
submenu11.jpg
899 ms
submenu10.jpg
900 ms
submenu07.jpg
988 ms
submenu13.jpg
1023 ms
r_banner_sacla_schedule.jpg
1318 ms
r_banner_sacla_status.jpg
1318 ms
bottom_bg.gif
1198 ms
footer_rogo-2.gif
1241 ms
up.gif
1243 ms
xfel.riken.jp accessibility score
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Image elements do not have [alt] attributes
xfel.riken.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
xfel.riken.jp SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
JA
N/A
SHIFT_JIS
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Xfel.riken.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 Xfel.riken.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.
xfel.riken.jp
Open Graph description is not detected on the main page of Xfel Riken. 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: