Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

lacoste.co.jp

ラコステ(LACOSTE)公式オンラインショップ - 1933年創業のプレミアム ファッションスポーツ ブランド

Page Load Speed

8.8 sec in total

First Response

310 ms

Resources Loaded

7.9 sec

Page Rendered

536 ms

lacoste.co.jp screenshot

About Website

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

1933年誕生、ワニのマークで有名なLACOSTE(ラコステ)公式オンラインショップ。 フレンチ・エレガンスとスポーツを融合させた独特のスタイルが魅力のポロシャツをはじめ、メンズ、ウィメンズ、フットウェア、レザーグッズなどトータルシルエットを取り揃えております。商品到着後1ヶ月以内の返品交換サービス(一部商品を除く)、お客様のデータを保護するセキュアペイメントで安心してお買い物いただけます。

Visit lacoste.co.jp

Key Findings

We analyzed Lacoste.co.jp page load time and found that the first response time was 310 ms and then it took 8.5 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

lacoste.co.jp performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value7.8 s

3/100

25%

SI (Speed Index)

Value12.8 s

2/100

10%

TBT (Total Blocking Time)

Value3,740 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.037

100/100

15%

TTI (Time to Interactive)

Value29.5 s

0/100

10%

Network Requests Diagram

lacoste.co.jp

310 ms

www.lacoste.jp

3153 ms

application-ed7a69958ef3ddc9b051c0b42511259d.css

19 ms

page-index-dcdd852acf5107a073145de578395371.css

44 ms

page-category-8c376b1fa48fa1169c5ca2ceccbd48b9.css

44 ms

Our browser made a total of 199 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Lacoste.co.jp, 43% (86 requests) were made to Cdn.lacoste.jp and 5% (9 requests) were made to Tg.socdm.com. The less responsive or slowest element that took the longest time to load (3.2 sec) relates to the external source Lacoste.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.4 MB (38%)

Content Size

3.7 MB

After Optimization

2.3 MB

In fact, the total size of Lacoste.co.jp main page is 3.7 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 166.1 kB

  • Original 220.0 kB
  • After minification 188.5 kB
  • After compression 53.9 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. This page needs HTML code to be minified as it can gain 31.5 kB, which is 14% 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 166.1 kB or 75% of the original size.

Image Optimization

-3%

Potential reduce by 55.5 kB

  • Original 1.7 MB
  • After minification 1.7 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. LACOSTE images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 914.2 kB

  • Original 1.4 MB
  • After minification 1.4 MB
  • After compression 505.7 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 914.2 kB or 64% of the original size.

CSS Optimization

-83%

Potential reduce by 263.7 kB

  • Original 318.3 kB
  • After minification 316.6 kB
  • After compression 54.6 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. Lacoste.co.jp needs all CSS files to be minified and compressed as it can save up to 263.7 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 96 (54%)

Requests Now

179

After Optimization

83

The browser has sent 179 CSS, Javascripts, AJAX and image requests in order to completely render the main page of LACOSTE. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 38 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

lacoste.co.jp accessibility score

72

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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

lacoste.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

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

lacoste.co.jp SEO score

85

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lacoste.co.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 Lacoste.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 description is not detected on the main page of LACOSTE. 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: