5.9 sec in total
594 ms
5.1 sec
227 ms
Welcome to j-cluster.com homepage info - get ready to check J Cluster best content right away, or after learning these important things about j-cluster.com
信頼の専門店、シーガルフォー浄水器の正規代理店の『浄水器本舗』では、水素水・電解還元水生成器・浄水器の取り付け・カートリッジの交換、取り外しなどの出張サービスを承っており、各種水素水生成器や浄水器用カートリッジ(フィルター)をご用意しております。浄水器や水素水生成器をご検討の際は、お気軽にお問い合わせください。ライフスタイルに合わせた商品をご提案いたします。
Visit j-cluster.comWe analyzed J-cluster.com page load time and found that the first response time was 594 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.
j-cluster.com performance score
name
value
score
weighting
Value4.5 s
15/100
10%
Value7.2 s
5/100
25%
Value7.7 s
24/100
10%
Value50 ms
100/100
30%
Value0.347
32/100
15%
Value5.3 s
72/100
10%
594 ms
1597 ms
740 ms
1316 ms
404 ms
Our browser made a total of 50 requests to load all elements on the main page. We found that 96% of them (48 requests) were addressed to the original J-cluster.com, 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain J-cluster.com.
Page size can be reduced by 125.3 kB (20%)
639.9 kB
514.6 kB
In fact, the total size of J-cluster.com main page is 639.9 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. 30% of websites need less resources to load. Images take 485.5 kB which makes up the majority of the site volume.
Potential reduce by 10.1 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 10.1 kB or 68% of the original size.
Potential reduce by 32.8 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. J Cluster images are well optimized though.
Potential reduce by 62.9 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 62.9 kB or 54% of the original size.
Potential reduce by 19.4 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. J-cluster.com needs all CSS files to be minified and compressed as it can save up to 19.4 kB or 82% of the original size.
Number of requests can be reduced by 18 (38%)
47
29
The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of J Cluster. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
j-cluster.com
594 ms
www.j-cluster.com
1597 ms
style.css
740 ms
jquery1.7.2.min.js
1316 ms
script.js
404 ms
slide_simple_pack.js
177 ms
rollimg.js
257 ms
ga.js
5 ms
__utm.gif
10 ms
logo.png
542 ms
fb.png
189 ms
tw.png
199 ms
mainNavBg.png
187 ms
mainNavSep.png
195 ms
mainnavBg.png
373 ms
mainImage.jpg
968 ms
banner1.png
750 ms
banner2.png
785 ms
banner3.png
788 ms
banner4.png
559 ms
banner5.png
889 ms
banner6.png
746 ms
banner7.png
932 ms
banner8.png
1120 ms
photo1.jpg
982 ms
photo3.jpg
985 ms
photo2.jpg
1064 ms
photo6.jpg
1118 ms
photo4.jpg
1152 ms
photo7.jpg
1179 ms
photo9.jpg
1181 ms
photo8.jpg
1238 ms
photo5.jpg
1307 ms
headingBg.png
1308 ms
labriller-luxe.jpg
1356 ms
border.png
1374 ms
eyecatch4.jpg
1574 ms
eyecatch3.jpg
1412 ms
eyecatch2.jpg
1493 ms
eyecatch1.jpg
1495 ms
sample02.jpg
1725 ms
arrow2.png
1570 ms
border2.png
1586 ms
style.css
1678 ms
iconHome.png
1643 ms
iconTel.png
1585 ms
iconFax.png
1588 ms
iconMail.png
1571 ms
iconTW.png
1672 ms
iconFB.png
1498 ms
j-cluster.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
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.
j-cluster.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
j-cluster.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
JA
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise J-cluster.com 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 J-cluster.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.
j-cluster.com
Open Graph description is not detected on the main page of J Cluster. 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: