Report Summary

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    Best Practices

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業務用エアコン専門店 エアコンセンターAC

Page Load Speed

9.5 sec in total

First Response

783 ms

Resources Loaded

8.2 sec

Page Rendered

525 ms screenshot

About Website

Click here to check amazing E Aircon content for Japan. Otherwise, check out these important facts you probably never knew about

業務用エアコン専門店 エアコンセンターACは、業務用エアコンの格安販売、スピード工事、安心のアフターサポートを日本全国に提供。激安販売はもちろん、設置後も安心していただく為のサービスも万全。無料見積は、0120-81-0017まで。ダイキン ・ 東芝 ・ 三菱電機 ・ 日立 ・ 三菱重工 ・ パナソニックなど、国内主要メーカーからお客様の設置環境に合わせてベストな最新機種のご提案を致します。形状・...


Key Findings

We analyzed page load time and found that the first response time was 783 ms and then it took 8.7 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 performance score


Network Requests Diagram

783 ms

1226 ms


53 ms


1616 ms


454 ms

Our browser made a total of 156 requests to load all elements on the main page. We found that 92% of them (144 requests) were addressed to the original, 1% (2 requests) were made to and 1% (2 requests) were made to The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain

Page Optimization Overview & Recommendations

Page size can be reduced by 302.0 kB (16%)

Content Size

1.9 MB

After Optimization

1.6 MB

In fact, the total size of main page is 1.9 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. 50% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization


Potential reduce by 46.5 kB

  • Original 58.2 kB
  • After minification 51.4 kB
  • After compression 11.6 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 6.8 kB, which is 12% 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 46.5 kB or 80% of the original size.

Image Optimization


Potential reduce by 83.4 kB

  • Original 1.6 MB
  • After minification 1.5 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. E Aircon images are well optimized though.

JavaScript Optimization


Potential reduce by 111.7 kB

  • Original 206.3 kB
  • After minification 200.9 kB
  • After compression 94.6 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 111.7 kB or 54% of the original size.

CSS Optimization


Potential reduce by 60.3 kB

  • Original 71.8 kB
  • After minification 51.8 kB
  • After compression 11.5 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. needs all CSS files to be minified and compressed as it can save up to 60.3 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (10%)

Requests Now


After Optimization


The browser has sent 150 CSS, Javascripts, AJAX and image requests in order to completely render the main page of E Aircon. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

SEO Factors SEO score


Language and Encoding

  • Language Detected


  • Language Claimed


  • Encoding


Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 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 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 description is not detected on the main page of E Aircon. 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: