Tools & Wizards About Us

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

readspeaker.co.jp

【公式】ReadSpeaker | AI音声合成ソフト,音声読み上げ, DNN,Web,テキスト読み上げ,合成音声,リードスピーカー,VoiceText,HOYA株式会社

Page Load Speed

6.7 sec in total

First Response

588 ms

Resources Loaded

5 sec

Page Rendered

1.1 sec

About Website

Welcome to readspeaker.co.jp homepage info - get ready to check Read Speaker best content right away, or after learning these important things about readspeaker.co.jp

Visit readspeaker.co.jp

Key Findings

We analyzed Readspeaker.co.jp page load time and found that the first response time was 588 ms and then it took 6.1 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

readspeaker.co.jp performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value7.5 s

4/100

25%

SI (Speed Index)

Value16.5 s

0/100

10%

TBT (Total Blocking Time)

Value8,140 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.031

100/100

15%

TTI (Time to Interactive)

Value118.3 s

0/100

10%

Network Requests Diagram

readspeaker.co.jp

588 ms

readspeaker.jp

970 ms

gtm.js

86 ms

style.min.css

169 ms

slick.css

335 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Readspeaker.co.jp, 80% (44 requests) were made to Readspeaker.jp and 4% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source Readspeaker.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 231.5 kB (41%)

Content Size

565.1 kB

After Optimization

333.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Readspeaker.co.jp main page is 565.1 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. Only a small number of websites need less resources to load. HTML takes 219.6 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 196.0 kB

  • Original 219.6 kB
  • After minification 196.7 kB
  • After compression 23.7 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 196.0 kB or 89% of the original size.

Image Optimization

-0%

Potential reduce by 50 B

  • Original 139.8 kB
  • After minification 139.8 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. Read Speaker images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 9.3 kB

  • Original 147.9 kB
  • After minification 147.9 kB
  • After compression 138.6 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

-45%

Potential reduce by 26.2 kB

  • Original 57.7 kB
  • After minification 55.9 kB
  • After compression 31.6 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. Readspeaker.co.jp needs all CSS files to be minified and compressed as it can save up to 26.2 kB or 45% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (55%)

Requests Now

42

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Read Speaker. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 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

readspeaker.co.jp accessibility score

96

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

readspeaker.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

readspeaker.co.jp SEO score

85

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

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 Readspeaker.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 Readspeaker.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 Read Speaker. 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: