Tools & Wizards About Us

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

kenzai-navi.com

【建材ナビ】建築材料・建築資材専門の検索サイト

Page Load Speed

8.5 sec in total

First Response

570 ms

Resources Loaded

7.6 sec

Page Rendered

414 ms

About Website

Click here to check amazing Kenzai Navi content for Japan. Otherwise, check out these important facts you probably never knew about kenzai-navi.com

建材ナビはお客様と業者間を結ぶ建築・建材専門の検索サイトです。800社を超えるメーカーの製品を200以上のカテゴリーに分類し比較検討できます。資料請求にも対応しています。

Visit kenzai-navi.com

Key Findings

We analyzed Kenzai-navi.com page load time and found that the first response time was 570 ms and then it took 8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

kenzai-navi.com performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value11.4 s

0/100

25%

SI (Speed Index)

Value26.1 s

0/100

10%

TBT (Total Blocking Time)

Value2,020 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.037

100/100

15%

TTI (Time to Interactive)

Value50.5 s

0/100

10%

Network Requests Diagram

kenzai-navi.com

570 ms

www.kenzai-navi.com

2560 ms

js

66 ms

fontawesome.css

897 ms

jquery.diamonds.css

615 ms

Our browser made a total of 128 requests to load all elements on the main page. We found that 76% of them (97 requests) were addressed to the original Kenzai-navi.com, 3% (4 requests) were made to P.clarity.ms and 2% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain Kenzai-navi.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.0 MB (37%)

Content Size

5.4 MB

After Optimization

3.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kenzai-navi.com main page is 5.4 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.8 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 240.9 kB

  • Original 271.9 kB
  • After minification 218.0 kB
  • After compression 31.0 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 53.9 kB, which is 20% 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 240.9 kB or 89% of the original size.

Image Optimization

-2%

Potential reduce by 59.9 kB

  • Original 2.8 MB
  • After minification 2.7 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. Kenzai Navi images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 1.2 MB

  • Original 1.8 MB
  • After minification 1.7 MB
  • After compression 569.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 1.2 MB or 68% of the original size.

CSS Optimization

-87%

Potential reduce by 487.2 kB

  • Original 557.6 kB
  • After minification 406.5 kB
  • After compression 70.4 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. Kenzai-navi.com needs all CSS files to be minified and compressed as it can save up to 487.2 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 49 (43%)

Requests Now

114

After Optimization

65

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 114 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kenzai Navi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

kenzai-navi.com accessibility score

72

Accessibility Issues

ARIA

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.

Impact

Issue

High

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

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

Tables and lists

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

Impact

Issue

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.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

kenzai-navi.com best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

kenzai-navi.com SEO score

99

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

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kenzai-navi.com 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 Kenzai-navi.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 data is detected on the main page of Kenzai Navi. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: