Access nikkan.co.jp. 日刊工業新聞電子版

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value8.5 s

2/100

25%

SI (Speed Index)

Value13.2 s

2/100

10%

TBT (Total Blocking Time)

Value1,250 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.212

59/100

15%

TTI (Time to Interactive)

Value18.9 s

3/100

10%

nikkan.co.jp

346 ms

www.nikkan.co.jp

3046 ms

import.css

169 ms

system.css

337 ms

jquery-1.8.3.min.js

829 ms

Our browser made a total of 112 requests to load all elements on the main page. We found that 42% of them (47 requests) were addressed to the original Nikkan.co.jp, 30% (34 requests) were made to D1z3vv7o7vo5tt.cloudfront.net and 4% (5 requests) were made to Corp.nikkan.co.jp. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Nikkan.co.jp.

Content Size

2.1 MB

After Optimization

1.8 MB

In fact, the total size of Nikkan.co.jp main page is 2.1 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. 65% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 99.2 kB

Original 120.3 kB
After minification 89.8 kB
After compression 21.1 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 30.5 kB, which is 25% 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 99.2 kB or 82% of the original size.

Image Optimization

-6%

Potential reduce by 98.0 kB

Original 1.8 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. Nikkan images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 146.1 kB

Original 224.4 kB
After minification 182.4 kB
After compression 78.2 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 146.1 kB or 65% of the original size.

CSS Optimization

-16%

Potential reduce by 5.5 kB

Original 34.0 kB
After minification 34.0 kB
After compression 28.5 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. Nikkan.co.jp needs all CSS files to be minified and compressed as it can save up to 5.5 kB or 16% of the original size.

Requests Now

110

After Optimization

The browser has sent 110 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nikkan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

ARIA input fields do not have accessible names

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Links do not have descriptive text

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

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

JA
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nikkan.co.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 Nikkan.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

nikkan.co.jp

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

日刊工業新聞 電子版

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

nikkan.co.jp

www.nikkan.co.jp

import.css

system.css

jquery-1.8.3.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

nikkan.co.jp

www.nikkan.co.jp

import.css

system.css

jquery-1.8.3.min.js

OtAutoBlock.js

otSDKStub.js

scroll.js

rollover.js

jquery.heightLine.js

jquery.bxslider.js

jquery.colorbox.js

myclip.js

script.js

youtube.js

ebx.js

loader.min.js

loader.min.js

base.css

layout.css

colorbox.css

f2b58804-1930-4002-8990-7bdcbe604025.json

location

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日刊工業新聞電子版