Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

jupiter-coffee.com

ジュピター | コーヒー豆と輸入食品

Page Load Speed

7.2 sec in total

First Response

523 ms

Resources Loaded

6.4 sec

Page Rendered

361 ms

jupiter-coffee.com screenshot

About Website

Click here to check amazing Jupiter Coffee content for Japan. Otherwise, check out these important facts you probably never knew about jupiter-coffee.com

明るい!楽しい!美味しい! 自社焙煎コーヒー豆と輸入食品、輸入ワインのお店です

Visit jupiter-coffee.com

Key Findings

We analyzed Jupiter-coffee.com page load time and found that the first response time was 523 ms and then it took 6.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

jupiter-coffee.com performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

12/100

10%

LCP (Largest Contentful Paint)

Value17.5 s

0/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value240 ms

85/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.1 s

63/100

10%

Network Requests Diagram

jupiter-coffee.com

523 ms

jupiter-coffee.com

709 ms

common.css

177 ms

main

356 ms

base

533 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 91% of them (59 requests) were addressed to the original Jupiter-coffee.com, 3% (2 requests) were made to Platform.twitter.com and 2% (1 request) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (4.3 sec) belongs to the original domain Jupiter-coffee.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.4 MB (15%)

Content Size

9.7 MB

After Optimization

8.3 MB

In fact, the total size of Jupiter-coffee.com main page is 9.7 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. 45% of websites need less resources to load. Images take 9.6 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 38.7 kB

  • Original 44.0 kB
  • After minification 26.2 kB
  • After compression 5.2 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 17.8 kB, which is 40% 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 38.7 kB or 88% of the original size.

Image Optimization

-14%

Potential reduce by 1.4 MB

  • Original 9.6 MB
  • After minification 8.2 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. Obviously, Jupiter Coffee needs image optimization as it can save up to 1.4 MB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-32%

Potential reduce by 839 B

  • Original 2.6 kB
  • After minification 2.6 kB
  • After compression 1.8 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 839 B or 32% of the original size.

CSS Optimization

-23%

Potential reduce by 13.5 kB

  • Original 59.0 kB
  • After minification 59.0 kB
  • After compression 45.5 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. Jupiter-coffee.com needs all CSS files to be minified and compressed as it can save up to 13.5 kB or 23% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (17%)

Requests Now

63

After Optimization

52

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jupiter Coffee. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

jupiter-coffee.com accessibility score

73

Accessibility Issues

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

jupiter-coffee.com 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

jupiter-coffee.com SEO score

92

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

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 Jupiter-coffee.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 Jupiter-coffee.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

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