Tools & Wizards About Us

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

high-low.jp

HiGH & LOW

Page Load Speed

2.6 sec in total

First Response

9 ms

Resources Loaded

2.4 sec

Page Rendered

240 ms

About Website

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

男たちの友情と熱き闘いを描く「HiGH&LOW」シリーズと、累計8000万部突破・不良漫画の金字塔「クローズ」「WORST」(原作・髙橋ヒロシ)との奇跡のクロスオーバーが再び実現！映画『HiGH&LOW THE WORST X』2022年9月9日(金)全国ロードショー

Visit high-low.jp

Key Findings

We analyzed High-low.jp page load time and found that the first response time was 9 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

high-low.jp performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value9.0 s

1/100

25%

SI (Speed Index)

Value21.4 s

0/100

10%

TBT (Total Blocking Time)

Value1,330 ms

17/100

30%

CLS (Cumulative Layout Shift)

Value0.917

3/100

15%

TTI (Time to Interactive)

Value35.2 s

0/100

10%

Network Requests Diagram

www.high-low.jp

9 ms

www.high-low.jp

758 ms

colorbox.css

195 ms

style.css

20 ms

import.css

24 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 84% of them (47 requests) were addressed to the original High-low.jp, 7% (4 requests) were made to Platform.twitter.com and 4% (2 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (991 ms) belongs to the original domain High-low.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 59.1 kB (1%)

Content Size

6.8 MB

After Optimization

6.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of High-low.jp main page is 6.8 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. Only a small number of websites need less resources to load. Images take 6.7 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 29.4 kB

  • Original 35.3 kB
  • After minification 28.8 kB
  • After compression 6.0 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 6.5 kB, which is 18% 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 29.4 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 22.1 kB

  • Original 6.7 MB
  • After minification 6.6 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. HiGH LOW images are well optimized though.

JavaScript Optimization

-10%

Potential reduce by 5.3 kB

  • Original 55.1 kB
  • After minification 54.1 kB
  • After compression 49.8 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. This website has mostly compressed JavaScripts.

CSS Optimization

-28%

Potential reduce by 2.4 kB

  • Original 8.3 kB
  • After minification 8.1 kB
  • After compression 5.9 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. High-low.jp needs all CSS files to be minified and compressed as it can save up to 2.4 kB or 28% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (47%)

Requests Now

51

After Optimization

27

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of HiGH LOW. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

high-low.jp accessibility score

53

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.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

high-low.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

high-low.jp SEO score

83

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise High-low.jp can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Japanese language. Our system also found out that High-low.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 HiGH LOW. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: