Tools & Wizards About Us

Report Summary

  • 60

    Performance

    Renders faster than
    75% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

jw-senga.co.jp

ジュエリーの銀座千雅・GINZA SENGA - 真珠、ダイヤモンド、カラーストーンの宝飾品の展示販売

Page Load Speed

7.8 sec in total

First Response

645 ms

Resources Loaded

6.9 sec

Page Rendered

224 ms

About Website

Visit jw-senga.co.jp now to see the best up-to-date Jw SENGA content and also check out these interesting facts you probably never knew about jw-senga.co.jp

真珠(パール)、ダイヤモンド、カラーストーンなどジュエリー(宝飾品)の展示販売を展開する株式会社 千雅は、世界中の産地と商社、そして高技術の研磨職人を結ぶことでお客様に心からご満足いただける商品をお届けいたします。

Visit jw-senga.co.jp

Key Findings

We analyzed Jw-senga.co.jp page load time and found that the first response time was 645 ms and then it took 7.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

jw-senga.co.jp performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value9.4 s

12/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.4 s

84/100

10%

Network Requests Diagram

jw-senga.co.jp

645 ms

www.jw-senga.co.jp

1295 ms

general.css

1413 ms

common.js

927 ms

gtm.js

118 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that 77% of them (20 requests) were addressed to the original Jw-senga.co.jp, 15% (4 requests) were made to Google-analytics.com and 4% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (3.2 sec) belongs to the original domain Jw-senga.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 99.1 kB (8%)

Content Size

1.3 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jw-senga.co.jp main page is 1.3 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 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-62%

Potential reduce by 7.7 kB

  • Original 12.6 kB
  • After minification 11.9 kB
  • After compression 4.8 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 7.7 kB or 62% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 1.2 MB
  • After minification 1.2 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. Jw SENGA images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 50 B

  • Original 21.0 kB
  • After minification 21.0 kB
  • After compression 20.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-85%

Potential reduce by 91.3 kB

  • Original 107.4 kB
  • After minification 88.9 kB
  • After compression 16.1 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. Jw-senga.co.jp needs all CSS files to be minified and compressed as it can save up to 91.3 kB or 85% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

24

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jw SENGA. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

jw-senga.co.jp accessibility score

100

Accessibility Issues

Best Practices

jw-senga.co.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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

jw-senga.co.jp SEO score

100

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

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 Jw-senga.co.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 Jw-senga.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

Open Graph data is detected on the main page of Jw SENGA. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: