Report Summary

  • 38

    Performance

    Renders faster than
    57% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 85% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    65% of websites

  • 92

    SEO

    Google-friendlier than
    79% of websites

guinnessworldrecords.jp

ギネスワールドレコーズ公式サイト | ギネス世界記録

Page Load Speed

1.5 sec in total

First Response

348 ms

Resources Loaded

1 sec

Page Rendered

141 ms

guinnessworldrecords.jp screenshot

About Website

Click here to check amazing Guinnessworldrecords content for Japan. Otherwise, check out these important facts you probably never knew about guinnessworldrecords.jp

ギネスワールドレコーズの数々の記録や、記録挑戦の方法などを紹介しています。また、企業・団体による記録挑戦のご提案なども行っています。

Visit guinnessworldrecords.jp

Key Findings

We analyzed Guinnessworldrecords.jp page load time and found that the first response time was 348 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

guinnessworldrecords.jp performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

88/100

10%

LCP (Largest Contentful Paint)

Value11.5 s

0/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value730 ms

41/100

30%

CLS (Cumulative Layout Shift)

Value0.086

93/100

15%

TTI (Time to Interactive)

Value14.8 s

8/100

10%

Network Requests Diagram

guinnessworldrecords.jp

348 ms

500.html

86 ms

main.min.css

242 ms

fonts.min.css

172 ms

modernizr.js

260 ms

Our browser made a total of 10 requests to load all elements on the main page. We found that all of those requests were addressed to Guinnessworldrecords.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (348 ms) belongs to the original domain Guinnessworldrecords.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 184.9 kB (71%)

Content Size

261.9 kB

After Optimization

76.9 kB

In fact, the total size of Guinnessworldrecords.jp main page is 261.9 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 10% of websites need less resources to load. CSS take 200.1 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 5.1 kB

  • Original 7.5 kB
  • After minification 5.2 kB
  • After compression 2.4 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. This page needs HTML code to be minified as it can gain 2.3 kB, which is 30% 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 5.1 kB or 68% of the original size.

Image Optimization

-14%

Potential reduce by 5.4 kB

  • Original 38.8 kB
  • After minification 33.5 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. Obviously, Guinnessworldrecords needs image optimization as it can save up to 5.4 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-61%

Potential reduce by 9.4 kB

  • Original 15.5 kB
  • After minification 15.0 kB
  • After compression 6.0 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 9.4 kB or 61% of the original size.

CSS Optimization

-83%

Potential reduce by 165.1 kB

  • Original 200.1 kB
  • After minification 199.9 kB
  • After compression 35.0 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. Guinnessworldrecords.jp needs all CSS files to be minified and compressed as it can save up to 165.1 kB or 83% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

6

After Optimization

6

The browser has sent 6 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Guinnessworldrecords. According to our analytics all requests are already optimized.

Accessibility Review

guinnessworldrecords.jp accessibility score

92

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

guinnessworldrecords.jp best practices score

83

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

SEO Factors

guinnessworldrecords.jp SEO score

92

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Guinnessworldrecords.jp 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 Guinnessworldrecords.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 Guinnessworldrecords. 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: