3.7 sec in total
173 ms
3.4 sec
153 ms
Visit rubycon.com now to see the best up-to-date Rubycon content and also check out these interesting facts you probably never knew about rubycon.com
Rubycon Corporation is a Japanese electronics company, whose main products are electrolytic capacitors, film capacitors and power supply units with a wide range of applications including consumer, ind...
Visit rubycon.comWe analyzed Rubycon.com page load time and found that the first response time was 173 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
rubycon.com performance score
name
value
score
weighting
Value4.2 s
19/100
10%
Value4.4 s
38/100
25%
Value11.1 s
6/100
10%
Value170 ms
92/100
30%
Value0.693
7/100
15%
Value5.8 s
67/100
10%
173 ms
1848 ms
1306 ms
1150 ms
193 ms
Our browser made a total of 42 requests to load all elements on the main page. We found that 5% of them (2 requests) were addressed to the original Rubycon.com, 95% (40 requests) were made to Rubycon.co.jp. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Rubycon.co.jp.
Page size can be reduced by 73.4 kB (22%)
338.8 kB
265.3 kB
In fact, the total size of Rubycon.com main page is 338.8 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only 10% of websites need less resources to load. Images take 255.4 kB which makes up the majority of the site volume.
Potential reduce by 13.9 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 13.9 kB or 78% of the original size.
Potential reduce by 6 B
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. Rubycon images are well optimized though.
Potential reduce by 3.2 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 3.2 kB or 66% of the original size.
Potential reduce by 56.3 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. Rubycon.com needs all CSS files to be minified and compressed as it can save up to 56.3 kB or 93% of the original size.
Number of requests can be reduced by 11 (28%)
40
29
The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rubycon. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
rubycon.com
173 ms
top.css
1848 ms
AC_RunActiveContent.js
1306 ms
01swf.js
1150 ms
headbg.gif
193 ms
logo.gif
190 ms
bt_english.gif
200 ms
bt_german.gif
366 ms
bt_chinese.gif
373 ms
bt_korean.gif
378 ms
bt_japanese.gif
378 ms
top_news01a.gif
382 ms
top_news01b.gif
395 ms
top_technews01a.gif
549 ms
top_technews01b.gif
556 ms
search_btn.jpg
576 ms
bn_samplekits.jpg
570 ms
bn_america.jpg
573 ms
bn_europe.jpg
594 ms
bn_asean.jpg
730 ms
bn_contact.jpg
754 ms
bn_catarog_con.jpg
760 ms
bn_catarog_den.jpg
765 ms
bn_catarog_sha.jpg
764 ms
bn_serieschart.jpg
799 ms
bn_recommend.jpg
915 ms
bn_csr.jpg
1125 ms
bn_ug.jpg
947 ms
bn_mohouhin.jpg
1143 ms
bn_funsou.jpg
955 ms
bn_stock.jpg
1005 ms
top_image.jpg
67 ms
top_wakubg.gif
1076 ms
icon_news.gif
1109 ms
top_pi.gif
1125 ms
icon_pi.gif
1182 ms
top_ar.gif
1261 ms
icon_ar.gif
1287 ms
top_s.gif
1303 ms
icon_ye.gif
1310 ms
icon_footerm.gif
1307 ms
crbg.gif
1216 ms
rubycon.com accessibility score
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
rubycon.com 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
Page has valid source maps
rubycon.com 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
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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rubycon.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Rubycon.com 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.
rubycon.com
Open Graph description is not detected on the main page of Rubycon. 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: