Access west-tokyo.co.jp. 田無ファミリーランド

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value13.3 s

0/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.463

19/100

15%

TTI (Time to Interactive)

Value4.9 s

78/100

10%

west-tokyo.co.jp

541 ms

west-tokyo.co.jp

719 ms

Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to West-tokyo.co.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (719 ms) belongs to the original domain West-tokyo.co.jp.

Content Size

7.9 kB

After Optimization

1.9 kB

In fact, the total size of West-tokyo.co.jp main page is 7.9 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. CSS take 7.3 kB which makes up the majority of the site volume.

HTML Optimization

-29%

Potential reduce by 170 B

Original 587 B
After minification 585 B
After compression 417 B

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 170 B or 29% of the original size.

CSS Optimization

-80%

Potential reduce by 5.9 kB

Original 7.3 kB
After minification 5.8 kB
After compression 1.5 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. West-tokyo.co.jp needs all CSS files to be minified and compressed as it can save up to 5.9 kB or 80% of the original size.

Requests Now

After Optimization

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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

High

Image elements do not have [alt] attributes

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 West-tokyo.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 West-tokyo.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

west-tokyo.co.jp

Open Graph description is not detected on the main page of West Tokyo. 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: