Access batt.co.jp. TOPページ / バッテリーリフレッシュサービス・セル交換の専門店

batt.co.jp screenshot

45

Performance

Renders faster than
64% of other websites
68

Accessibility

Visual factors better than
that of 33% of websites
67

Best Practices

More advanced features
available than in
24% of websites
82

SEO

Google-friendlier than
44% of websites

First Response

534 ms

Resources Loaded

20.9 sec

Page Rendered

486 ms

batt.co.jp screenshot

About Website

Visit batt.co.jp now to see the best up-to-date Batt content for Japan and also check out these interesting facts you probably never knew about batt.co.jp

バッテリーの持ちが悪い、パワーが落ちたと感じたらご相談を。専門店のバッテリーリフレッシュ・セル交換なら、もう手に入らないバッテリーも復活するかも！新品購入より安価に、大切な機器を長く使い続けられます。

Visit batt.co.jp

Key Findings

We analyzed Batt.co.jp page load time and found that the first response time was 534 ms and then it took 21.4 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

name

value

score

weighting

FCP (First Contentful Paint)

Value8.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value9.1 s

1/100

25%

SI (Speed Index)

Value14.6 s

1/100

10%

TBT (Total Blocking Time)

Value170 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value12.0 s

16/100

10%

batt.co.jp

534 ms

batt.co.jp

3740 ms

style.css

1146 ms

flexslider.css

494 ms

jquery.fancybox-1.3.4.css

495 ms

Our browser made a total of 170 requests to load all elements on the main page. We found that 96% of them (164 requests) were addressed to the original Batt.co.jp, 1% (2 requests) were made to Googletagmanager.com and 1% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (4.1 sec) belongs to the original domain Batt.co.jp.

Content Size

1.4 MB

After Optimization

589.8 kB

In fact, the total size of Batt.co.jp main page is 1.4 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. 40% of websites need less resources to load. Images take 542.4 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 353.0 kB

Original 389.0 kB
After minification 227.8 kB
After compression 36.0 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 161.3 kB, which is 41% 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 353.0 kB or 91% of the original size.

Image Optimization

-26%

Potential reduce by 142.1 kB

Original 542.4 kB
After minification 400.3 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, Batt needs image optimization as it can save up to 142.1 kB or 26% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-53%

Potential reduce by 172.9 kB

Original 323.8 kB
After minification 294.8 kB
After compression 151.0 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 172.9 kB or 53% of the original size.

CSS Optimization

-98%

Potential reduce by 118.0 kB

Original 120.4 kB
After minification 8.5 kB
After compression 2.5 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. Batt.co.jp needs all CSS files to be minified and compressed as it can save up to 118.0 kB or 98% of the original size.

Requests Now

167

After Optimization

143

The browser has sent 167 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Batt. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

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

Form elements do not have associated labels

High

Links do not have a discernible name

These items highlight common accessibility best practices.

High

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

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

Displays images with incorrect aspect ratio

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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

High

Image elements do not have [alt] attributes

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

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 Batt.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 Batt.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

batt.co.jp

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