Access rmt.diamond-gil.jp. エアコンクリーニングrmt.diamond-gil

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value3.4 s

65/100

25%

SI (Speed Index)

Value4.4 s

74/100

10%

TBT (Total Blocking Time)

Value250 ms

84/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value3.7 s

90/100

10%

rmt.diamond-gil.jp

4707 ms

main.css

423 ms

main.js

669 ms

pageline.js

455 ms

jquery-1.7.min.js

1147 ms

Our browser made a total of 96 requests to load all elements on the main page. We found that all of those requests were addressed to Rmt.diamond-gil.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (4.7 sec) belongs to the original domain Rmt.diamond-gil.jp.

Content Size

219.9 kB

After Optimization

63.5 kB

In fact, the total size of Rmt.diamond-gil.jp main page is 219.9 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Javascripts take 113.3 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 56.1 kB

Original 65.1 kB
After minification 58.0 kB
After compression 9.0 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 7.1 kB, which is 11% 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 56.1 kB or 86% of the original size.

Image Optimization

-20%

Potential reduce by 3.0 kB

Original 15.4 kB
After minification 12.3 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, Rmt Diamond Gil needs image optimization as it can save up to 3.0 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-66%

Potential reduce by 75.2 kB

Original 113.3 kB
After minification 109.7 kB
After compression 38.1 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 75.2 kB or 66% of the original size.

CSS Optimization

-84%

Potential reduce by 22.1 kB

Original 26.2 kB
After minification 21.5 kB
After compression 4.1 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. Rmt.diamond-gil.jp needs all CSS files to be minified and compressed as it can save up to 22.1 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 94 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rmt Diamond Gil. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts 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 keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

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

N/A
Encoding

SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rmt.diamond-gil.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 Rmt.diamond-gil.jp main page’s claimed encoding is shift_jis. 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

rmt.diamond-gil.jp

Open Graph description is not detected on the main page of Rmt Diamond Gil. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

エアコンクリーニングrmt.diamond-gil

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)

Network Requests Diagram

rmt.diamond-gil.jp

main.css

main.js

pageline.js

jquery-1.7.min.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

rmt.diamond-gil.jp

main.css

main.js

pageline.js

jquery-1.7.min.js

organictabs.jquery.js

sidebar.css

index.css

line_top.gif

RMT_DG.gif

logo_new.jpg

button1_03.gif

button1_04.gif

button1_05.gif

button1_06.gif

button1_07.gif

button1_08.gif

button1_09.gif

bg_bar.gif

ico.gif

banner_register.gif

blog_001.png

phone_32_20.png

bar.jpg

bg_bar1.gif

bul_more3.gif

new7.gif

bar1.jpg

games_146_lPjOA.gif

games_2_HfFK4.gif

games_89_jAlL5.gif

games_125_3Y9sS.gif

games_144_a9E8m.gif

games_131_rxxVG.gif

games_54_kY0jS.gif

games_139_f77DJ.gif

games_145_G2gnf.gif

games_137_1m8R7.gif

games_136_BBqH4.gif

games_143_OpU0o.gif

games_127_oHHno.gif

games_129_a9EL1.gif

games_3_aOThQ.gif