Tools & Wizards About Us

Report Summary

  • 58

    Performance

    Renders faster than
    74% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

lsmile.co.jp

(株)ケイ・エス・オー｜エル・スマイル事業部

Page Load Speed

4.4 sec in total

First Response

744 ms

Resources Loaded

3.5 sec

Page Rendered

142 ms

About Website

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

(株)ケイ・エス・オー｜エル・スマイル事業部は、日本人を健康にしよう！を理念に健康フェアを実施しております。機能性食品・健康食品のヒト臨床試験、アンケートのモニターを常時募集しております。

Visit lsmile.co.jp

Key Findings

We analyzed Lsmile.co.jp page load time and found that the first response time was 744 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

lsmile.co.jp performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value7.3 s

5/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value570 ms

52/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.3 s

73/100

10%

Network Requests Diagram

lsmile.co.jp

744 ms

l-smile.css

236 ms

analytics.js

8 ms

lsmile_top.jpg

470 ms

1-3.jpg

2555 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that 46% of them (6 requests) were addressed to the original Lsmile.co.jp, 23% (3 requests) were made to Google-analytics.com and 15% (2 requests) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (2.6 sec) belongs to the original domain Lsmile.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 38.3 kB (6%)

Content Size

670.0 kB

After Optimization

631.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lsmile.co.jp main page is 670.0 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. 15% of websites need less resources to load. Images take 630.4 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 6.3 kB

  • Original 9.2 kB
  • After minification 7.7 kB
  • After compression 2.9 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 1.5 kB, which is 16% 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 6.3 kB or 69% of the original size.

Image Optimization

-4%

Potential reduce by 24.6 kB

  • Original 630.4 kB
  • After minification 605.8 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. Lsmile 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

-78%

Potential reduce by 7.4 kB

  • Original 9.4 kB
  • After minification 7.6 kB
  • After compression 2.1 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. Lsmile.co.jp needs all CSS files to be minified and compressed as it can save up to 7.4 kB or 78% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

12

After Optimization

12

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lsmile. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

lsmile.co.jp accessibility score

88

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

lsmile.co.jp 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

lsmile.co.jp SEO score

75

Search Engine Optimization Advices

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 Lsmile.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 Lsmile.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 Lsmile. 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: