Report Summary

  • 94

    Performance

    Renders faster than
    93% of other websites

  • 58

    Accessibility

    Visual factors better than
    that of 25% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

artbook-tph.com

YOKOTA TOKYO|Top Page

Page Load Speed

5.9 sec in total

First Response

711 ms

Resources Loaded

4.9 sec

Page Rendered

290 ms

artbook-tph.com screenshot

About Website

Welcome to artbook-tph.com homepage info - get ready to check Artbook Tph best content right away, or after learning these important things about artbook-tph.com

「YOKOTA TOKYO」は東京を拠点としたギャラリー/出版社です。前身となる 横田茂ギャラリーは、1976 年日本橋の雅陶堂ギャラリーから活動をスタートし、その後1989 年に港区竹芝に移転しました。開廊以来、国内外の現代美術作家の作品を取扱う中で、一人一人の作家の個展を継続的に開催し、作家の制作全体に向き合ってきました。また、1991 年に設立した東京パブリッシングハウスは、エディションにま...

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Key Findings

We analyzed Artbook-tph.com page load time and found that the first response time was 711 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

artbook-tph.com performance score

94

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value6.2 s

43/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.01

100/100

15%

TTI (Time to Interactive)

Value1.4 s

100/100

10%

Network Requests Diagram

artbook-tph.com

711 ms

style.css

173 ms

jquery-1.6.4.min.js

699 ms

jquery.backstretch.min.js

348 ms

yokotatokyo_logo.png

171 ms

Our browser made a total of 6 requests to load all elements on the main page. We found that all of those requests were addressed to Artbook-tph.com and no external sources were called. The less responsive or slowest element that took the longest time to load (3.5 sec) belongs to the original domain Artbook-tph.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 368.8 kB (30%)

Content Size

1.2 MB

After Optimization

862.4 kB

In fact, the total size of Artbook-tph.com main page is 1.2 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. Only 10% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 3.4 kB

  • Original 4.6 kB
  • After minification 2.2 kB
  • After compression 1.2 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 2.5 kB, which is 53% 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 3.4 kB or 74% of the original size.

Image Optimization

-31%

Potential reduce by 364.0 kB

  • Original 1.2 MB
  • After minification 827.7 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, Artbook Tph needs image optimization as it can save up to 364.0 kB or 31% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 789 B

  • Original 33.5 kB
  • After minification 33.4 kB
  • After compression 32.7 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

-42%

Potential reduce by 574 B

  • Original 1.4 kB
  • After minification 1.4 kB
  • After compression 805 B

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. Artbook-tph.com needs all CSS files to be minified and compressed as it can save up to 574 B or 42% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Artbook Tph. According to our analytics all requests are already optimized.

Accessibility Review

artbook-tph.com accessibility score

58

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

The document uses <meta http-equiv="refresh">

Best Practices

artbook-tph.com 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

artbook-tph.com SEO score

92

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Artbook-tph.com can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Artbook-tph.com 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 Artbook Tph. 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: