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name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

8/100

25%

SI (Speed Index)

Value10.4 s

8/100

10%

TBT (Total Blocking Time)

Value110 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.087

93/100

15%

TTI (Time to Interactive)

Value8.4 s

39/100

10%

kolfx.com

1592 ms

common.css

355 ms

layout.css

355 ms

design.css

901 ms

mobile.css

541 ms

Our browser made a total of 93 requests to load all elements on the main page. We found that 66% of them (61 requests) were addressed to the original Kolfx.com, 9% (8 requests) were made to Asumi.shinobi.jp and 4% (4 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Kolfx.com.

Content Size

1.5 MB

After Optimization

983.5 kB

In fact, the total size of Kolfx.com main page is 1.5 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 956.4 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 69.7 kB

Original 87.0 kB
After minification 84.0 kB
After compression 17.3 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 69.7 kB or 80% of the original size.

Image Optimization

-12%

Potential reduce by 115.9 kB

Original 956.4 kB
After minification 840.5 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, Kolfx needs image optimization as it can save up to 115.9 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-67%

Potential reduce by 232.2 kB

Original 345.5 kB
After minification 317.4 kB
After compression 113.3 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 232.2 kB or 67% of the original size.

CSS Optimization

-84%

Potential reduce by 66.3 kB

Original 78.6 kB
After minification 54.6 kB
After compression 12.4 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. Kolfx.com needs all CSS files to be minified and compressed as it can save up to 66.3 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 92 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kolfx. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

These are opportunities to improve keyboard navigation in your application.

High

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

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

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

Language and Encoding

Language Detected

ZH
Language Claimed

JA
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kolfx.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed Japanese language. Our system also found out that Kolfx.com 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

kolfx.com

Open Graph description is not detected on the main page of Kolfx. 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

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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

kolfx.com

common.css

layout.css

design.css

mobile.css

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

kolfx.com

common.css

layout.css

design.css

mobile.css

mobile_layout.css

advanced.css

jquery.js

utility.js

widget.css

styles.css

meteor-slides.css

screen.min.css

colorbox.min.css

jquery.js

jquery-migrate.min.js

jquery.cycle.all.js

jquery.metadata.v2.js

jquery.touchwipe.1.1.1.js

slideshow.js

nendAdLoader.js

067039200

socialButton.js

jquery.form.min.js

scripts.js

front.min.js

jquery.colorbox.1.5.9-min.js

wp-emoji-release.min.js

icon-ranking1-4.png

icon-ranking1-5.png

logo.gif

bg-conts-h2.gif

mailmaga.jpg

icon-mail.png

icon-check01.png

yuai.jpg

pausd-250x200.gif

225.gif

5502.jpg

kigyouai.jpg

daisukeai.jpg

genai.jpg

pro.jpg