Tools & Wizards About Us

Report Summary

  • 3

    Performance

    Renders faster than
    20% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

mystery.co.jp

ミステリーチャンネル ～日本唯一のミステリードラマ専門チャンネル～（旧ＡＸＮミステリー）

Page Load Speed

6 sec in total

First Response

35 ms

Resources Loaded

5.3 sec

Page Rendered

688 ms

About Website

Welcome to mystery.co.jp homepage info - get ready to check Mystery best content for Japan right away, or after learning these important things about mystery.co.jp

世界各国の上質なドラマをお届けする日本唯一のミステリードラマ専門チャンネル(旧ＡＸＮミステリー)。英国の本格ミステリーを中心に、ヨーロッパの話題作、人気小説が原作の日本のミステリーまで、選りすぐりのミステリードラマが集結！

Visit mystery.co.jp

Key Findings

We analyzed Mystery.co.jp page load time and found that the first response time was 35 ms and then it took 6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

mystery.co.jp performance score

3

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value32.2 s

0/100

25%

SI (Speed Index)

Value14.2 s

1/100

10%

TBT (Total Blocking Time)

Value2,460 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.926

3/100

15%

TTI (Time to Interactive)

Value26.7 s

0/100

10%

Network Requests Diagram

mystery.co.jp

35 ms

www.mystery.co.jp

390 ms

gtm.js

77 ms

common.css

378 ms

top.css

390 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 64% of them (57 requests) were addressed to the original Mystery.co.jp, 9% (8 requests) were made to Fonts.gstatic.com and 3% (3 requests) were made to Tr.line.me. The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain Mystery.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 804.2 kB (9%)

Content Size

9.3 MB

After Optimization

8.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Mystery.co.jp main page is 9.3 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. 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 9.0 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 49.9 kB

  • Original 61.4 kB
  • After minification 54.5 kB
  • After compression 11.5 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 6.9 kB, which is 11% 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 49.9 kB or 81% of the original size.

Image Optimization

-8%

Potential reduce by 740.2 kB

  • Original 9.0 MB
  • After minification 8.3 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. Mystery images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.5 kB

  • Original 234.8 kB
  • After minification 234.8 kB
  • After compression 233.3 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

-75%

Potential reduce by 12.6 kB

  • Original 16.9 kB
  • After minification 4.5 kB
  • After compression 4.3 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. Mystery.co.jp needs all CSS files to be minified and compressed as it can save up to 12.6 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 30 (38%)

Requests Now

79

After Optimization

49

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mystery. 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 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

mystery.co.jp accessibility score

83

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-hidden="true"] elements contain focusable descendents

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

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

High

Links do not have a discernible name

Best Practices

mystery.co.jp best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

mystery.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

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 Mystery.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 Mystery.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 Mystery. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: