6 sec in total
684 ms
4 sec
1.3 sec
Visit c60.co.jp now to see the best up-to-date C 60 content and also check out these interesting facts you probably never knew about c60.co.jp
PHP入門講座 セミナー 習うより慣れよう!1日でフォームができるPHP講座 株式会社C60(シーロクマル)
Visit c60.co.jpWe analyzed C60.co.jp page load time and found that the first response time was 684 ms and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
c60.co.jp performance score
name
value
score
weighting
Value3.7 s
29/100
10%
Value5.3 s
21/100
25%
Value9.3 s
13/100
10%
Value310 ms
78/100
30%
Value0.422
23/100
15%
Value4.7 s
80/100
10%
684 ms
356 ms
352 ms
750 ms
793 ms
Our browser made a total of 54 requests to load all elements on the main page. We found that 69% of them (37 requests) were addressed to the original C60.co.jp, 6% (3 requests) were made to Ecx.images-amazon.com and 4% (2 requests) were made to S.ytimg.com. The less responsive or slowest element that took the longest time to load (3.3 sec) belongs to the original domain C60.co.jp.
Page size can be reduced by 515.5 kB (11%)
4.6 MB
4.1 MB
In fact, the total size of C60.co.jp main page is 4.6 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. 40% of websites need less resources to load. Images take 4.0 MB which makes up the majority of the site volume.
Potential reduce by 89.2 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. This page needs HTML code to be minified as it can gain 14.1 kB, which is 14% 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 89.2 kB or 86% of the original size.
Potential reduce by 78.3 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. C 60 images are well optimized though.
Potential reduce by 134.7 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 134.7 kB or 60% of the original size.
Potential reduce by 213.3 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. C60.co.jp needs all CSS files to be minified and compressed as it can save up to 213.3 kB or 83% of the original size.
Number of requests can be reduced by 8 (16%)
50
42
The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of C 60. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.
c60.co.jp
684 ms
common.css
356 ms
til_main_s.gif
352 ms
hr_top.gif
750 ms
til_main01.jpg
793 ms
btn_top.gif
749 ms
btn_it.gif
749 ms
btn_career.gif
792 ms
btn_download.gif
796 ms
btn_aboutus.gif
792 ms
btn_contact.gif
792 ms
btn_top_sh.gif
795 ms
img_kizukebaphp.jpg
1124 ms
ir
190 ms
bnr_dvd_php.gif
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dvdphp.jpg
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img_ikinariphp.jpg
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img_til_c60semi.jpg
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img_c60room.jpg
1248 ms
img_top_rishoku.jpg
1207 ms
fXER55CvjC0
92 ms
www-embed-player-vflfNyN_r.css
41 ms
www-embed-player.js
71 ms
cm
597 ms
cm
602 ms
img_career01.jpg
1190 ms
img_career02.jpg
1570 ms
img_career03.jpg
1067 ms
img_career04.jpg
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img_career05.jpg
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img_career06.jpg
1234 ms
img_career07.jpg
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img_career08.jpg
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img_career09.jpg
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img_career10.jpg
1340 ms
img_career11.jpg
1400 ms
img_keizaikai01.jpg
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img_keizaikai02.jpg
3051 ms
bnr_c60semi.gif
1566 ms
bnr_somosomo.gif
1649 ms
bnr_englife.gif
1731 ms
bnr_jonetsu.gif
1733 ms
fBnyGA8Aionz5086-mElmoOSPUuyQ1M9Un647_EjucU.js
504 ms
ad_status.js
453 ms
ga.js
384 ms
cor230.gif
1622 ms
zN7GBFwfMP4uA6AR0HCoLQ.ttf
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RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf
431 ms
51+CzDrEjZL._SL100_.jpg
86 ms
183 ms
buy-from-tan.gif
82 ms
51jnKwcwR-L._SL100_.jpg
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__utm.gif
12 ms
c60.co.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
Image elements do not have [alt] attributes
Links do not have a discernible name
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.
c60.co.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
c60.co.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
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
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise C60.co.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that C60.co.jp 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.
c60.co.jp
Open Graph description is not detected on the main page of C 60. 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: