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831kobo.com screenshot

Report Summary

  • 85

    Performance

    Renders faster than
    89% of other websites

  • 50

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

831kobo.com

野菜自然工房 純度の高いオリゴ糖の粉末を通販

Page Load Speed

3.1 sec in total

First Response

662 ms

Resources Loaded

2.1 sec

Page Rendered

341 ms

831kobo.com screenshot

About Website

Visit 831kobo.com now to see the best up-to-date 831 Kobo content and also check out these interesting facts you probably never knew about 831kobo.com

純度の高いオリゴ糖の粉末を通販しているお店です。

Visit 831kobo.com

Key Findings

We analyzed 831kobo.com page load time and found that the first response time was 662 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

831kobo.com performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

95/100

10%

LCP (Largest Contentful Paint)

Value1.7 s

99/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.565

12/100

15%

TTI (Time to Interactive)

Value1.5 s

100/100

10%

Network Requests Diagram

831kobo.com

662 ms

styles.css

226 ms

origo6001.jpg

1032 ms

tables.css

179 ms

commonstyles.css

321 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that all of those requests were addressed to 831kobo.com and no external sources were called. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain 831kobo.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 38.0 kB (15%)

Content Size

247.6 kB

After Optimization

209.7 kB

  • HTML
  • Images
  • CSS

In fact, the total size of 831kobo.com main page is 247.6 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. Only 10% of websites need less resources to load. Images take 202.1 kB which makes up the majority of the site volume.

HTML Optimization

-60%

Potential reduce by 4.6 kB

  • Original 7.7 kB
  • After minification 7.7 kB
  • After compression 3.1 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 4.6 kB or 60% of the original size.

Image Optimization

-1%

Potential reduce by 2.1 kB

  • Original 202.1 kB
  • After minification 200.0 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. 831 Kobo images are well optimized though.

CSS Optimization

-83%

Potential reduce by 31.2 kB

  • Original 37.8 kB
  • After minification 30.4 kB
  • After compression 6.6 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. 831kobo.com needs all CSS files to be minified and compressed as it can save up to 31.2 kB or 83% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

17

After Optimization

17

  • Images
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 831 Kobo. According to our analytics all requests are already optimized.

Network Requests Diagram

831kobo.com

831kobo.com

662 ms

styles.css

styles.css

226 ms

origo6001.jpg

origo6001.jpg

1032 ms

tables.css

tables.css

179 ms

commonstyles.css

commonstyles.css

321 ms

box_top.png

box_top.png

200 ms

h1.jpg

h1.jpg

180 ms

box_body.png

box_body.png

365 ms

header.jpg

header.jpg

870 ms

h3.jpg

h3.jpg

378 ms

h3_r.jpg

h3_r.jpg

558 ms

user2.png

user2.png

407 ms

user1.png

user1.png

569 ms

menu_h4.jpg

menu_h4.jpg

589 ms

menu_bottom.jpg

menu_bottom.jpg

586 ms

menu_body.jpg

menu_body.jpg

666 ms

menu_bg.gif

menu_bg.gif

713 ms

box_bottom.png

box_bottom.png

736 ms

Accessibility Review

831kobo.com accessibility score

50

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

831kobo.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

831kobo.com SEO score

89

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 831kobo.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 831kobo.com main page’s claimed encoding is shift_jis. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

831kobo.com

Open Graph description is not detected on the main page of 831 Kobo. 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: