Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

sempre.jp

【SEMPRE】公式通販 家具・雑貨・インテリアショップのセンプレ

Page Load Speed

6.8 sec in total

First Response

600 ms

Resources Loaded

5.9 sec

Page Rendered

316 ms

sempre.jp screenshot

About Website

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

センプレは心地よい空間をトータルに提案するライフスタイルショップです。世界中から選び抜いた家具や雑貨を取り揃えています。

Visit sempre.jp

Key Findings

We analyzed Sempre.jp page load time and found that the first response time was 600 ms and then it took 6.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

sempre.jp performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.6 s

1/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

4/100

25%

SI (Speed Index)

Value30.7 s

0/100

10%

TBT (Total Blocking Time)

Value13,920 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.02

100/100

15%

TTI (Time to Interactive)

Value33.6 s

0/100

10%

Network Requests Diagram

www.sempre.jp

600 ms

sempre6_style_20160110.css

360 ms

slidebars.css

357 ms

jquery.min.js

556 ms

slidebars.min.js

362 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 26% of them (17 requests) were addressed to the original Sempre.jp, 51% (33 requests) were made to Img.sempre.jp and 11% (7 requests) were made to Translate.googleapis.com. The less responsive or slowest element that took the longest time to load (4.1 sec) relates to the external source Img.sempre.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 189.6 kB (7%)

Content Size

2.8 MB

After Optimization

2.6 MB

In fact, the total size of Sempre.jp main page is 2.8 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. 25% of websites need less resources to load. Images take 2.5 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 28.2 kB

  • Original 36.1 kB
  • After minification 32.5 kB
  • After compression 7.9 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 28.2 kB or 78% of the original size.

Image Optimization

-2%

Potential reduce by 57.6 kB

  • Original 2.5 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. SEMPRE images are well optimized though.

JavaScript Optimization

-36%

Potential reduce by 80.5 kB

  • Original 223.4 kB
  • After minification 223.1 kB
  • After compression 142.9 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 80.5 kB or 36% of the original size.

CSS Optimization

-75%

Potential reduce by 23.3 kB

  • Original 31.1 kB
  • After minification 20.7 kB
  • After compression 7.9 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. Sempre.jp needs all CSS files to be minified and compressed as it can save up to 23.3 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (34%)

Requests Now

64

After Optimization

42

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SEMPRE. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

sempre.jp accessibility score

74

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[aria-*] attributes do not have valid values

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

sempre.jp best practices score

58

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

sempre.jp SEO score

97

Search Engine Optimization Advices

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

    N/A

  • Encoding

    EUC-JP

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sempre.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 Sempre.jp main page’s claimed encoding is euc-jp. 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 SEMPRE. 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: