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Report Summary

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    Performance

  • 0

    Accessibility

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    Best Practices

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    SEO

jamco.co.jp

トップページ | 株式会社ジャムコ

Page Load Speed

4.3 sec in total

First Response

980 ms

Resources Loaded

3.1 sec

Page Rendered

274 ms

jamco.co.jp screenshot

About Website

Welcome to jamco.co.jp homepage info - get ready to check Jamco best content for Japan right away, or after learning these important things about jamco.co.jp

株式会社ジャムコのトップページをご覧いただけます。

Visit jamco.co.jp

Key Findings

We analyzed Jamco.co.jp page load time and found that the first response time was 980 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

jamco.co.jp performance score

0

Network Requests Diagram

jamco.co.jp

980 ms

style.css

573 ms

jquery-1.7.1.min.js

841 ms

background_home.png

208 ms

header_home.png

385 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that all of those requests were addressed to Jamco.co.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Jamco.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 113.5 kB (13%)

Content Size

855.7 kB

After Optimization

742.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jamco.co.jp main page is 855.7 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. 15% of websites need less resources to load. Images take 724.7 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 11.2 kB

  • Original 14.7 kB
  • After minification 13.8 kB
  • After compression 3.5 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. 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 11.2 kB or 76% of the original size.

Image Optimization

-3%

Potential reduce by 23.0 kB

  • Original 724.7 kB
  • After minification 701.7 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. Jamco images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 60.5 kB

  • Original 93.9 kB
  • After minification 93.9 kB
  • After compression 33.4 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 60.5 kB or 64% of the original size.

CSS Optimization

-84%

Potential reduce by 18.9 kB

  • Original 22.4 kB
  • After minification 17.1 kB
  • After compression 3.5 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. Jamco.co.jp needs all CSS files to be minified and compressed as it can save up to 18.9 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (59%)

Requests Now

29

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jamco. 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.

Network Requests Diagram

jamco.co.jp

jamco.co.jp

980 ms

style.css

style.css

573 ms

jquery-1.7.1.min.js

jquery-1.7.1.min.js

841 ms

background_home.png

background_home.png

208 ms

header_home.png

header_home.png

385 ms

header_logo.png

header_logo.png

205 ms

arrow_header_nav.png

arrow_header_nav.png

383 ms

tab_japanese.png

tab_japanese.png

390 ms

tab_english.png

tab_english.png

390 ms

global_nav.png

global_nav.png

408 ms

img_home.png

img_home.png

1413 ms

nav_interiors.png

nav_interiors.png

1142 ms

nav_components.png

nav_components.png

764 ms

nav_maintenance.png

nav_maintenance.png

1161 ms

title.png

title.png

584 ms

button_more.png

button_more.png

703 ms

dot_line.png

dot_line.png

784 ms

arrow_about.png

arrow_about.png

907 ms

title_ir_news.png

title_ir_news.png

957 ms

dot_line_red.png

dot_line_red.png

980 ms

button_more_ir.png

button_more_ir.png

1111 ms

arrow_ir.png

arrow_ir.png

1148 ms

arrow_bbs.png

arrow_bbs.png

1174 ms

background_footer.png

background_footer.png

1315 ms

footer.png

footer.png

1332 ms

footer_nav.png

footer_nav.png

1340 ms

nav_privacy.png

nav_privacy.png

1355 ms

cat_announcement.png

cat_announcement.png

387 ms

cat_press-release.png

cat_press-release.png

392 ms

cat_csr-news.png

cat_csr-news.png

408 ms

SEO Factors

jamco.co.jp SEO score

0

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jamco.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 Jamco.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.

Social Sharing Optimization

jamco.co.jp

Open Graph description is not detected on the main page of Jamco. 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: