Tools & Wizards About Us
supervalue.jp screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

supervalue.jp

スーパーバリュー | 埼玉・東京・千葉のホームセンター /食品スーパー

Page Load Speed

17.1 sec in total

First Response

551 ms

Resources Loaded

16.1 sec

Page Rendered

441 ms

supervalue.jp screenshot

About Website

Visit supervalue.jp now to see the best up-to-date Supervalue content for Japan and also check out these interesting facts you probably never knew about supervalue.jp

スーパーバリューは、埼玉、東京、千葉で展開する食品スーパーとホームセンターを併設した複合型小売店鋪と食品スーパー単独の小売店舗です。スーパーバリューからの最新情報、お買得な情報をお届けいたします。

Visit supervalue.jp

Key Findings

We analyzed Supervalue.jp page load time and found that the first response time was 551 ms and then it took 16.6 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

supervalue.jp performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value38.5 s

0/100

25%

SI (Speed Index)

Value16.2 s

0/100

10%

TBT (Total Blocking Time)

Value310 ms

78/100

30%

CLS (Cumulative Layout Shift)

Value0.825

4/100

15%

TTI (Time to Interactive)

Value16.4 s

5/100

10%

Network Requests Diagram

supervalue.jp

551 ms

supervalue.jp

701 ms

www.supervalue.jp

1260 ms

gtm.js

44 ms

reset.css

528 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 89% of them (77 requests) were addressed to the original Supervalue.jp, 5% (4 requests) were made to Googletagmanager.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (10.4 sec) belongs to the original domain Supervalue.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 225.1 kB (27%)

Content Size

831.1 kB

After Optimization

606.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Supervalue.jp main page is 831.1 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. 35% of websites need less resources to load. Images take 557.3 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 19.4 kB

  • Original 24.8 kB
  • After minification 22.2 kB
  • After compression 5.4 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 19.4 kB or 78% of the original size.

Image Optimization

-9%

Potential reduce by 52.9 kB

  • Original 557.3 kB
  • After minification 504.4 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. Supervalue images are well optimized though.

JavaScript Optimization

-58%

Potential reduce by 119.8 kB

  • Original 205.9 kB
  • After minification 195.2 kB
  • After compression 86.1 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 119.8 kB or 58% of the original size.

CSS Optimization

-76%

Potential reduce by 33.0 kB

  • Original 43.2 kB
  • After minification 32.9 kB
  • After compression 10.1 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. Supervalue.jp needs all CSS files to be minified and compressed as it can save up to 33.0 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (39%)

Requests Now

84

After Optimization

51

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 84 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Supervalue. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

supervalue.jp

supervalue.jp

551 ms

supervalue.jp

supervalue.jp

701 ms

www.supervalue.jp

www.supervalue.jp

1260 ms

gtm.js

gtm.js

44 ms

reset.css

reset.css

528 ms

layout.css

layout.css

530 ms

common.css

common.css

537 ms

otoku_common.css

otoku_common.css

540 ms

style.css

style.css

546 ms

jquery-1.10.2.min.js

jquery-1.10.2.min.js

1069 ms

viewport.js

viewport.js

1052 ms

slider.css

slider.css

1067 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

1078 ms

jQueryAutoHeight.js

jQueryAutoHeight.js

1079 ms

index.js

index.js

1085 ms

index_map.js

index_map.js

1574 ms

slider.js

slider.js

1590 ms

jquery.cookie.js

jquery.cookie.js

1591 ms

set_cookie.js

set_cookie.js

1597 ms

js

js

47 ms

destination

destination

104 ms

common.js

common.js

1485 ms

sweet-tooltip.js

sweet-tooltip.js

1485 ms

conversion.js

conversion.js

113 ms

bg_navy.gif

bg_navy.gif

525 ms

bg_header_shadow.png

bg_header_shadow.png

526 ms

img_header_logo.png

img_header_logo.png

526 ms

img_logo.png

img_logo.png

527 ms

btn_menu.png

btn_menu.png

540 ms

icon_link_arrow.png

icon_link_arrow.png

541 ms

btn_header_home_02.png

btn_header_home_02.png

1046 ms

btn_header_home_01.png

btn_header_home_01.png

1049 ms

btn_header_shops_02.png

btn_header_shops_02.png

1242 ms

btn_header_shops_01.png

btn_header_shops_01.png

1065 ms

btn_header_leaflet_b.png

btn_header_leaflet_b.png

1063 ms

btn_header_leaflet_a.png

btn_header_leaflet_a.png

1078 ms

bg_header_rect.png

bg_header_rect.png

1570 ms

btn_header_topics_02.png

btn_header_topics_02.png

1584 ms

btn_header_topics_01.png

btn_header_topics_01.png

1585 ms

btn_delete.gif

btn_delete.gif

1595 ms

bg_body.gif

bg_body.gif

1611 ms

20230911_1254532380.jpg

20230911_1254532380.jpg

2306 ms

20240216_1801529500.jpg

20240216_1801529500.jpg

2648 ms

20240212_1732200328.jpg

20240212_1732200328.jpg

3384 ms

20240223_2023823852.jpg

20240223_2023823852.jpg

2317 ms

20230502_214730879.jpg

20230502_214730879.jpg

2510 ms

20240205_516818070.jpg

20240205_516818070.jpg

2144 ms

20230501_1887001855.jpg

20230501_1887001855.jpg

2695 ms

20230511_2008952721.jpg

20230511_2008952721.jpg

2842 ms

20230528_1462043506.jpg

20230528_1462043506.jpg

2853 ms

20240506_1125181925.jpg

20240506_1125181925.jpg

4321 ms

ttl_index_news.png

ttl_index_news.png

3183 ms

icon_link_arrow2.png

icon_link_arrow2.png

3218 ms

bg_link_arrow4.png

bg_link_arrow4.png

3360 ms

ttl_index_leaflet.png

ttl_index_leaflet.png

3379 ms

ttl_index_shop.png

ttl_index_shop.png

3707 ms

btn_side_shop.png

btn_side_shop.png

3759 ms

ttl_side_myshop.png

ttl_side_myshop.png

3828 ms

icon_hint.png

icon_hint.png

3870 ms

analytics.js

analytics.js

16 ms

btn_side_myshop2.gif

btn_side_myshop2.gif

3866 ms

41 ms

collect

collect

12 ms

collect

collect

24 ms

js

js

30 ms

87 ms

top_myshop.php

top_myshop.php

3746 ms

top_myshop_leaflet.php

top_myshop_leaflet.php

3805 ms

20240212_1310393203.jpg

20240212_1310393203.jpg

10398 ms

20240223_19779675.jpg

20240223_19779675.jpg

4562 ms

20230522_1228701357.jpg

20230522_1228701357.jpg

4340 ms

20240205_95062223.jpg

20240205_95062223.jpg

4629 ms

20230501_1770736593.jpg

20230501_1770736593.jpg

4128 ms

20230511_1519891169.jpg

20230511_1519891169.jpg

4124 ms

20230528_991979068.jpg

20230528_991979068.jpg

4397 ms

20240506_374344388.jpg

20240506_374344388.jpg

5782 ms

btn_link_corp.gif

btn_link_corp.gif

4622 ms

btn_link_recruit.gif

btn_link_recruit.gif

4485 ms

txt_footer_pagetop.png

txt_footer_pagetop.png

4164 ms

icon_link_arrow--02.png

icon_link_arrow--02.png

4440 ms

img_footer_logo.png

img_footer_logo.png

4655 ms

bg_footer_line.png

bg_footer_line.png

4731 ms

btn_myshop_top.gif

btn_myshop_top.gif

1996 ms

phone.css

phone.css

176 ms

otoku_phone.css

otoku_phone.css

530 ms

btn_slider_prev.png

btn_slider_prev.png

539 ms

btn_slider_next.png

btn_slider_next.png

539 ms

Accessibility Review

supervalue.jp accessibility score

90

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

High

Links do not have a discernible name

Best Practices

supervalue.jp best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

supervalue.jp SEO score

90

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Supervalue.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 Supervalue.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

supervalue.jp

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