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Report Summary

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    Performance

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    Accessibility

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    Best Practices

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    SEO

rogers.co.jp

ディスカウントスーパー ロヂャース

Page Load Speed

12.1 sec in total

First Response

544 ms

Resources Loaded

11.3 sec

Page Rendered

197 ms

rogers.co.jp screenshot

About Website

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

ロヂャースのホームページ。ロヂャースは食料品と日用品が毎日お得なディスカウントスーパーです。チラシ、キャンペーン情報などをご紹介。

Visit rogers.co.jp

Key Findings

We analyzed Rogers.co.jp page load time and found that the first response time was 544 ms and then it took 11.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

rogers.co.jp performance score

0

Network Requests Diagram

rogers.co.jp

544 ms

rogers.co.jp

720 ms

www.rogers.co.jp

1172 ms

reset.css

505 ms

default.css

676 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 90% of them (45 requests) were addressed to the original Rogers.co.jp, 4% (2 requests) were made to Googletagmanager.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (6.4 sec) belongs to the original domain Rogers.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 131.7 kB (5%)

Content Size

2.7 MB

After Optimization

2.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rogers.co.jp main page is 2.7 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 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 10.6 kB

  • Original 14.8 kB
  • After minification 13.1 kB
  • After compression 4.2 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 1.6 kB, which is 11% 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 10.6 kB or 72% of the original size.

Image Optimization

-2%

Potential reduce by 52.8 kB

  • Original 2.4 MB
  • After minification 2.4 MB

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. Rogers images are well optimized though.

JavaScript Optimization

-30%

Potential reduce by 63.7 kB

  • Original 211.0 kB
  • After minification 211.0 kB
  • After compression 147.3 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 63.7 kB or 30% of the original size.

CSS Optimization

-34%

Potential reduce by 4.7 kB

  • Original 13.9 kB
  • After minification 13.9 kB
  • After compression 9.2 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. Rogers.co.jp needs all CSS files to be minified and compressed as it can save up to 4.7 kB or 34% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (38%)

Requests Now

47

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rogers. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

rogers.co.jp

rogers.co.jp

544 ms

rogers.co.jp

rogers.co.jp

720 ms

www.rogers.co.jp

www.rogers.co.jp

1172 ms

reset.css

reset.css

505 ms

default.css

default.css

676 ms

top.css

top.css

508 ms

flexslider.css

flexslider.css

507 ms

lightbox.css

lightbox.css

534 ms

jquery-1.10.2.min.js

jquery-1.10.2.min.js

1091 ms

smoothScroll.js

smoothScroll.js

1013 ms

pagetop.js

pagetop.js

1052 ms

device.js

device.js

1038 ms

jquery.flexslider.js

jquery.flexslider.js

1423 ms

flexslider-option.js

flexslider-option.js

1224 ms

lightbox-plus-jquery.js

lightbox-plus-jquery.js

2401 ms

gtm.js

gtm.js

102 ms

btn_sp.gif

btn_sp.gif

349 ms

logo.gif

logo.gif

3031 ms

eslp.gif

eslp.gif

3034 ms

arrow_b02.png

arrow_b02.png

535 ms

btn_mykaiapp.png

btn_mykaiapp.png

885 ms

btn_netshop.png

btn_netshop.png

3233 ms

bg_slash.gif

bg_slash.gif

883 ms

arrow_a01.png

arrow_a01.png

1083 ms

bnr_mykaiclub.jpg

bnr_mykaiclub.jpg

2569 ms

bnr_mykaiclub-otoku0.png

bnr_mykaiclub-otoku0.png

3261 ms

bnr_mykaiapp-boshu.jpg

bnr_mykaiapp-boshu.jpg

2124 ms

bnr_ponzu.jpg

bnr_ponzu.jpg

4703 ms

slide_tea.jpg

slide_tea.jpg

3918 ms

bnr_mutekikkaSTRONG.jpg

bnr_mutekikkaSTRONG.jpg

4492 ms

slide_mykai.gif

slide_mykai.gif

4305 ms

slide01.jpg

slide01.jpg

4578 ms

bnr_chirashi.png

bnr_chirashi.png

4678 ms

001.jpg

001.jpg

5586 ms

002.jpg

002.jpg

6212 ms

shop_img.png

shop_img.png

5783 ms

bg_recipe.gif

bg_recipe.gif

5103 ms

01.jpg

01.jpg

5563 ms

cow.svg

cow.svg

5208 ms

logo_s.gif

logo_s.gif

5607 ms

arrow_b01.png

arrow_b01.png

5741 ms

btn_pagetop.png

btn_pagetop.png

6121 ms

prev.png

prev.png

6112 ms

next.png

next.png

6106 ms

loading.gif

loading.gif

6409 ms

close.png

close.png

6298 ms

js

js

40 ms

analytics.js

analytics.js

19 ms

collect

collect

62 ms

collect

collect

30 ms

SEO Factors

rogers.co.jp SEO score

0

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    UTF-8

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

rogers.co.jp

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