Report Summary

  • 52

    Performance

    Renders faster than
    70% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

aircon-f.co.jp

業務用エアコン取付工事と機器販売のエアコンフロンティア

Page Load Speed

13.9 sec in total

First Response

1.6 sec

Resources Loaded

11.6 sec

Page Rendered

688 ms

aircon-f.co.jp screenshot

About Website

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

業務用エアコンの取付工事と機器販売は、エアコンフロンティアにお任せください。創業77年の知識と経験で快適な空調のご提案、安心・安全・丁寧な取付け工事と圧倒的な安さでのご提供をお約束します。全国施工対応・国内主要メーカー(ダイキン・日立・三菱電機・三菱重工・パナソニックなど)を対応しております。快適空調のご提案をいたします。お問わせだけでもお気軽に!0120-620-500まで。

Visit aircon-f.co.jp

Key Findings

We analyzed Aircon-f.co.jp page load time and found that the first response time was 1.6 sec and then it took 12.3 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

aircon-f.co.jp performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

26/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value350 ms

73/100

30%

CLS (Cumulative Layout Shift)

Value0.099

90/100

15%

TTI (Time to Interactive)

Value8.6 s

37/100

10%

Network Requests Diagram

aircon-f.co.jp

1611 ms

base.css

853 ms

top.css

514 ms

slider-pro.css

708 ms

jquery.js

1238 ms

Our browser made a total of 148 requests to load all elements on the main page. We found that 89% of them (132 requests) were addressed to the original Aircon-f.co.jp, 2% (3 requests) were made to Google.com and 1% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Aircon-f.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 823.7 kB (30%)

Content Size

2.8 MB

After Optimization

1.9 MB

In fact, the total size of Aircon-f.co.jp main page is 2.8 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. 45% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 51.2 kB

  • Original 64.2 kB
  • After minification 54.6 kB
  • After compression 13.0 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 9.6 kB, which is 15% 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 51.2 kB or 80% of the original size.

Image Optimization

-7%

Potential reduce by 121.9 kB

  • Original 1.9 MB
  • After minification 1.7 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. Aircon F images are well optimized though.

JavaScript Optimization

-76%

Potential reduce by 601.9 kB

  • Original 791.9 kB
  • After minification 634.5 kB
  • After compression 189.9 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 601.9 kB or 76% of the original size.

CSS Optimization

-83%

Potential reduce by 48.7 kB

  • Original 58.4 kB
  • After minification 45.4 kB
  • After compression 9.7 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. Aircon-f.co.jp needs all CSS files to be minified and compressed as it can save up to 48.7 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (8%)

Requests Now

143

After Optimization

131

The browser has sent 143 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Aircon F. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

aircon-f.co.jp accessibility score

91

Accessibility Issues

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.

Best Practices

aircon-f.co.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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

aircon-f.co.jp SEO score

91

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

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 Aircon-f.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 Aircon-f.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

Open Graph description is not detected on the main page of Aircon F. 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: