Access esco-co.jp. 省エネ・コスト削減のエスコ(ESCO) | エスコ（ESCO）の豊富な実績とノウハウで、省エネ・節電・コスト削減対策をサポートいたします

Report Summary

About Website

Click here to check amazing ESCO Co content for Japan. Otherwise, check out these important facts you probably never knew about esco-co.jp

エスコ（ESCO）の豊富な実績とノウハウで、省エネ・節電・コスト削減対策をサポートいたします。電子ブレーカー・LED照明・太陽光を使った省エネコンサルをはじめ、キュービクル・感震ブレーカーを使った保守・保安サービスなどを実施しております。

Visit esco-co.jp

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

5/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

17/100

25%

SI (Speed Index)

Value15.2 s

1/100

10%

TBT (Total Blocking Time)

Value3,560 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value27.9 s

0/100

10%

www.esco-co.jp

1905 ms

style.css

176 ms

odometer-theme-default.css

353 ms

xye4txu.css

182 ms

style.min.css

683 ms

Our browser made a total of 100 requests to load all elements on the main page. We found that 49% of them (49 requests) were addressed to the original Esco-co.jp, 9% (9 requests) were made to Youtube.com and 6% (6 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Esco-co.jp.

Content Size

3.6 MB

After Optimization

3.4 MB

In fact, the total size of Esco-co.jp main page is 3.6 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 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 98.5 kB

Original 120.5 kB
After minification 103.3 kB
After compression 21.9 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. This page needs HTML code to be minified as it can gain 17.2 kB, which is 14% 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 98.5 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 4.7 kB

Original 2.7 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. ESCO Co images are well optimized though.

JavaScript Optimization

-20%

Potential reduce by 115.5 kB

Original 574.0 kB
After minification 573.7 kB
After compression 458.4 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 115.5 kB or 20% of the original size.

CSS Optimization

-31%

Potential reduce by 69.0 kB

Original 222.8 kB
After minification 222.1 kB
After compression 153.7 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. Esco-co.jp needs all CSS files to be minified and compressed as it can save up to 69.0 kB or 31% of the original size.

Requests Now

After Optimization

The browser has sent 89 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ESCO Co. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 39 to 1 for JavaScripts and from 16 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

Links do not have a discernible name

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

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

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

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 Esco-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 Esco-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

esco-co.jp

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

Report Summary

Performance

Accessibility

Best Practices

SEO

省エネ・コスト削減のエスコ(ESCO) | エスコ（ESCO）の豊富な実績とノウハウで、省エネ・節電・コスト削減対策をサポートいたします

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)