Report Summary

  • 36

    Performance

    Renders faster than
    57% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 90

    SEO

    Google-friendlier than
    69% of websites

mystery.co.jp

AXNミステリー ~日本唯一のミステリー専門チャンネル~

Page Load Speed

26.7 sec in total

First Response

9.9 sec

Resources Loaded

16 sec

Page Rendered

753 ms

mystery.co.jp screenshot

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専門チャンネル。英国の本格ミステリーや北欧ミステリー、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を24時間放送!

Visit mystery.co.jp

Key Findings

We analyzed Mystery.co.jp page load time and found that the first response time was 9.9 sec and then it took 16.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

mystery.co.jp performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value13.6 s

0/100

25%

SI (Speed Index)

Value7.6 s

26/100

10%

TBT (Total Blocking Time)

Value300 ms

79/100

30%

CLS (Cumulative Layout Shift)

Value0.275

44/100

15%

TTI (Time to Interactive)

Value13.1 s

12/100

10%

Network Requests Diagram

mystery.co.jp

9913 ms

fastclick.js

143 ms

css_ky_N6c6RSXVONHrJ1NPnCuhyqg1tuO2tS8scAiGo4D8.css

190 ms

css_3vSM2SqZxFQJJAbqvpTGypYahgtaBII5yKJt-d2txfQ.css

311 ms

css_CvZkEZXaHNXeOgN3cWmGqpxElYhtgvfgD6Bw9KkWVG4.css

368 ms

Our browser made a total of 148 requests to load all elements on the main page. We found that 5% of them (7 requests) were addressed to the original Mystery.co.jp, 33% (49 requests) were made to Cdn.sptndigital.com and 8% (12 requests) were made to Pbs.twimg.com. The less responsive or slowest element that took the longest time to load (9.9 sec) belongs to the original domain Mystery.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.5 MB (29%)

Content Size

5.3 MB

After Optimization

3.8 MB

In fact, the total size of Mystery.co.jp main page is 5.3 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. 85% 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 3.3 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 53.1 kB

  • Original 66.5 kB
  • After minification 62.1 kB
  • After compression 13.4 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 53.1 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 33.1 kB

  • Original 3.3 MB
  • After minification 3.2 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

-68%

Potential reduce by 944.3 kB

  • Original 1.4 MB
  • After minification 1.3 MB
  • After compression 454.0 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 944.3 kB or 68% of the original size.

CSS Optimization

-87%

Potential reduce by 485.3 kB

  • Original 556.6 kB
  • After minification 554.2 kB
  • After compression 71.3 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 485.3 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 66 (49%)

Requests Now

135

After Optimization

69

The browser has sent 135 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 38 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

mystery.co.jp accessibility score

84

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.

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

mystery.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

SEO Factors

mystery.co.jp SEO score

90

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

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

    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 description is not detected on the main page of Mystery. 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: