Access advan.co.jp. 建築資材・住宅設備【アドヴァングループ】

name

value

score

weighting

FCP (First Contentful Paint)

Value7.2 s

1/100

10%

LCP (Largest Contentful Paint)

Value16.8 s

0/100

25%

SI (Speed Index)

Value35.0 s

0/100

10%

TBT (Total Blocking Time)

Value780 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value1.204

1/100

15%

TTI (Time to Interactive)

Value28.5 s

0/100

10%

advan.co.jp

1827 ms

reset.css

356 ms

style.css

1178 ms

app.css

920 ms

jquery-ui.min.css

534 ms

Our browser made a total of 135 requests to load all elements on the main page. We found that 80% of them (108 requests) were addressed to the original Advan.co.jp, 9% (12 requests) were made to Scontent-nrt1-1.cdninstagram.com and 2% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (4.8 sec) relates to the external source Scontent-nrt1-1.cdninstagram.com.

Content Size

10.7 MB

After Optimization

9.1 MB

In fact, the total size of Advan.co.jp main page is 10.7 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. 60% of websites need less resources to load. Images take 9.0 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 78.3 kB

Original 91.6 kB
After minification 71.7 kB
After compression 13.2 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 19.9 kB, which is 22% 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 78.3 kB or 86% of the original size.

Image Optimization

-3%

Potential reduce by 306.2 kB

Original 9.0 MB
After minification 8.7 MB

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. Advan images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 674.6 kB

Original 979.9 kB
After minification 947.4 kB
After compression 305.2 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 674.6 kB or 69% of the original size.

CSS Optimization

-88%

Potential reduce by 546.0 kB

Original 623.5 kB
After minification 491.7 kB
After compression 77.5 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. Advan.co.jp needs all CSS files to be minified and compressed as it can save up to 546.0 kB or 88% of the original size.

Requests Now

133

After Optimization

The browser has sent 133 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Advan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

[aria-hidden="true"] elements contain focusable descendents

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 keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

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>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

High

Page has valid source maps

Search Engine Optimization Advices

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/).

High

Document uses legible font sizes

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 Advan.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 Advan.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

advan.co.jp

Open Graph data is detected on the main page of Advan. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

建築資材・住宅設備【アドヴァングループ】

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

advan.co.jp

reset.css

style.css

app.css

jquery-ui.min.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

advan.co.jp

reset.css

style.css

app.css

jquery-ui.min.css

slick-theme.css

slick.css

style.css

sp_style.css

jquery-3.3.1.min.js

slick.min.js

main.js

app.js

jquery-ui.min.js

jquery.matchHeight.js

slick.min.js

common.js

sdk.js

widgets.js

loader.min.js

css

gtm.js

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