Report Summary

  • 74

    Performance

    Renders faster than
    83% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

whobuysbooks.info

子供も大人も楽しめる!精密機器系の工場見学

Page Load Speed

2.3 sec in total

First Response

368 ms

Resources Loaded

878 ms

Page Rendered

1.1 sec

whobuysbooks.info screenshot

About Website

Welcome to whobuysbooks.info homepage info - get ready to check Whobuysbooks best content right away, or after learning these important things about whobuysbooks.info

家族で旅行に行く場合は、工場見学をするのがおすすめです。 普段見られないものを見学できるので、思い出に残ると思います。

Visit whobuysbooks.info

Key Findings

We analyzed Whobuysbooks.info page load time and found that the first response time was 368 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

whobuysbooks.info performance score

74

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

72/100

25%

SI (Speed Index)

Value5.6 s

53/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.373

28/100

15%

TTI (Time to Interactive)

Value2.8 s

97/100

10%

Network Requests Diagram

whobuysbooks.info

368 ms

wp-emoji-release.min.js

133 ms

pagenavi-css.css

137 ms

css

62 ms

genericons.css

201 ms

Our browser made a total of 11 requests to load all elements on the main page. We found that 91% of them (10 requests) were addressed to the original Whobuysbooks.info, 9% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (368 ms) belongs to the original domain Whobuysbooks.info.

Page Optimization Overview & Recommendations

Page size can be reduced by 193.6 kB (70%)

Content Size

275.8 kB

After Optimization

82.2 kB

In fact, the total size of Whobuysbooks.info main page is 275.8 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. 15% of websites need less resources to load. Javascripts take 146.3 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 22.7 kB

  • Original 32.5 kB
  • After minification 31.1 kB
  • After compression 9.7 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 22.7 kB or 70% of the original size.

JavaScript Optimization

-68%

Potential reduce by 99.9 kB

  • Original 146.3 kB
  • After minification 143.6 kB
  • After compression 46.3 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 99.9 kB or 68% of the original size.

CSS Optimization

-73%

Potential reduce by 70.9 kB

  • Original 97.0 kB
  • After minification 81.6 kB
  • After compression 26.2 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. Whobuysbooks.info needs all CSS files to be minified and compressed as it can save up to 70.9 kB or 73% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (80%)

Requests Now

10

After Optimization

2

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Whobuysbooks. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

whobuysbooks.info accessibility score

96

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

Links do not have a discernible name

Best Practices

whobuysbooks.info best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

SEO Factors

whobuysbooks.info SEO score

90

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Whobuysbooks.info can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it does not match the claimed English language. Our system also found out that Whobuysbooks.info 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 Whobuysbooks. 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: