Report Summary

  • 16

    Performance

    Renders faster than
    35% of other websites

  • 62

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    34% of websites

  • 76

    SEO

    Google-friendlier than
    44% of websites

nano-glass.jp

車用コーティング剤・ガラスコーティング・洗車用品ならハイブリッドナノガラス/クルーズジャパン

Page Load Speed

17.7 sec in total

First Response

573 ms

Resources Loaded

15.4 sec

Page Rendered

1.7 sec

nano-glass.jp screenshot

About Website

Welcome to nano-glass.jp homepage info - get ready to check Nano Glass best content for Japan right away, or after learning these important things about nano-glass.jp

自分でできる車用コーティング剤やガラスコーティング、洗車用品ならハイブリッドナノガラス!洗車コーティングのプロ専門店でも人気・評判のボディ・ホイール等のガラスコーティング剤や、鉄粉・水垢・雨ジミ(イオンデポジット)除去ボディクリーナー、キズ消しコンパウンドがおすすめ。

Visit nano-glass.jp

Key Findings

We analyzed Nano-glass.jp page load time and found that the first response time was 573 ms and then it took 17.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

nano-glass.jp performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.9 s

1/100

10%

LCP (Largest Contentful Paint)

Value11.4 s

0/100

25%

SI (Speed Index)

Value25.0 s

0/100

10%

TBT (Total Blocking Time)

Value2,470 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.027

100/100

15%

TTI (Time to Interactive)

Value38.1 s

0/100

10%

Network Requests Diagram

nano-glass.jp

573 ms

www.nano-glass.jp

988 ms

default.css

521 ms

pcsmpflg.js

360 ms

jsapi

19 ms

Our browser made a total of 278 requests to load all elements on the main page. We found that 54% of them (150 requests) were addressed to the original Nano-glass.jp, 38% (106 requests) were made to Image1.shopserve.jp and 3% (9 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (10.9 sec) relates to the external source Image1.shopserve.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 799.7 kB (16%)

Content Size

5.0 MB

After Optimization

4.2 MB

In fact, the total size of Nano-glass.jp main page is 5.0 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. 70% of websites need less resources to load. Images take 4.3 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 135.2 kB

  • Original 168.1 kB
  • After minification 157.0 kB
  • After compression 32.9 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. 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 135.2 kB or 80% of the original size.

Image Optimization

-5%

Potential reduce by 232.0 kB

  • Original 4.3 MB
  • After minification 4.0 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. Nano Glass images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 200.9 kB

  • Original 325.9 kB
  • After minification 324.0 kB
  • After compression 125.0 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 200.9 kB or 62% of the original size.

CSS Optimization

-83%

Potential reduce by 231.6 kB

  • Original 277.7 kB
  • After minification 264.8 kB
  • After compression 46.0 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. Nano-glass.jp needs all CSS files to be minified and compressed as it can save up to 231.6 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 43 (23%)

Requests Now

188

After Optimization

145

The browser has sent 188 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nano Glass. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

nano-glass.jp accessibility score

62

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

[id] attributes on active, focusable elements are not unique

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

nano-glass.jp 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

Page has valid source maps

SEO Factors

nano-glass.jp SEO score

76

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

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    EUC-JP

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nano-glass.jp 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 Nano-glass.jp main page’s claimed encoding is euc-jp. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Nano Glass. 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: