Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

how-to-line.jp

LINE使い方徹底ガイド

Page Load Speed

4.5 sec in total

First Response

724 ms

Resources Loaded

3.2 sec

Page Rendered

584 ms

how-to-line.jp screenshot

About Website

Welcome to how-to-line.jp homepage info - get ready to check How To Line best content for Japan right away, or after learning these important things about how-to-line.jp

LINE(ライン)使い方徹底ガイド。ここ最近使用者が増え、とうとう4500万人を超えたというコミュニケーションアプリ『LINE』 基本的な使い方から、便利な使い方、最新情報、LINEにまつわるエピソード、おもしろネタを発信していきます。

Visit how-to-line.jp

Key Findings

We analyzed How-to-line.jp page load time and found that the first response time was 724 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

how-to-line.jp performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

12/100

10%

LCP (Largest Contentful Paint)

Value8.5 s

1/100

25%

SI (Speed Index)

Value14.0 s

1/100

10%

TBT (Total Blocking Time)

Value3,120 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.054

98/100

15%

TTI (Time to Interactive)

Value17.9 s

3/100

10%

Network Requests Diagram

how-to-line.jp

724 ms

common.css.pagespeed.ce.m0FC3aptKn.css

341 ms

layout.css.pagespeed.ce.GMAtOn-Tgb.css

345 ms

design.css.pagespeed.ce.SBFwScJ3rX.css

361 ms

mobile.css.pagespeed.ce.ZMhTl4k8Pm.css

366 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 63% of them (40 requests) were addressed to the original How-to-line.jp, 5% (3 requests) were made to S.gravatar.com and 3% (2 requests) were made to Facebook.com. The less responsive or slowest element that took the longest time to load (894 ms) belongs to the original domain How-to-line.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 417.9 kB (63%)

Content Size

662.0 kB

After Optimization

244.1 kB

In fact, the total size of How-to-line.jp main page is 662.0 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. 45% of websites need less resources to load. Javascripts take 350.6 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 51.9 kB

  • Original 72.3 kB
  • After minification 69.1 kB
  • After compression 20.4 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 51.9 kB or 72% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 63.5 kB
  • After minification 63.5 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. How To Line images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 219.8 kB

  • Original 350.6 kB
  • After minification 350.6 kB
  • After compression 130.8 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 219.8 kB or 63% of the original size.

CSS Optimization

-83%

Potential reduce by 146.2 kB

  • Original 175.6 kB
  • After minification 142.9 kB
  • After compression 29.4 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. How-to-line.jp needs all CSS files to be minified and compressed as it can save up to 146.2 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 45 (71%)

Requests Now

63

After Optimization

18

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of How To Line. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

how-to-line.jp accessibility score

71

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

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.

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

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

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

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

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

how-to-line.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

how-to-line.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 How-to-line.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 How-to-line.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 How To Line. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: