Access mantan-web.jp. MANTANWEB（まんたんウェブ）- ポップカルチャーの総合ニュースサイト

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

46/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

43/100

25%

SI (Speed Index)

Value8.3 s

19/100

10%

TBT (Total Blocking Time)

Value2,420 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value23.3 s

1/100

10%

mantan-web.jp

523 ms

mantan-web.jp

717 ms

pc_main.css

195 ms

slick.css

368 ms

jquery.min.js

57 ms

Our browser made a total of 134 requests to load all elements on the main page. We found that 13% of them (18 requests) were addressed to the original Mantan-web.jp, 45% (60 requests) were made to Storage.mantan-web.jp and 10% (13 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (9 sec) relates to the external source Storage.mantan-web.jp.

Content Size

923.4 kB

After Optimization

743.4 kB

In fact, the total size of Mantan-web.jp main page is 923.4 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 787.7 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 94.0 kB

Original 116.2 kB
After minification 111.9 kB
After compression 22.2 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 94.0 kB or 81% of the original size.

Image Optimization

-22%

Potential reduce by 4.2 kB

Original 18.8 kB
After minification 14.6 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, MANTANWEB needs image optimization as it can save up to 4.2 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-10%

Potential reduce by 81.7 kB

Original 787.7 kB
After minification 787.5 kB
After compression 706.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-28%

Potential reduce by 192 B

Original 676 B
After minification 676 B
After compression 484 B

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. Mantan-web.jp needs all CSS files to be minified and compressed as it can save up to 192 B or 28% of the original size.

Requests Now

127

After Optimization

The browser has sent 127 CSS, Javascripts, AJAX and image requests in order to completely render the main page of MANTANWEB. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 35 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

Image elements do not have [alt] attributes

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

Missing source maps for large first-party JavaScript

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

JA
Encoding

UTF-8

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

mantan-web.jp

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

MANTANWEB（まんたんウェブ）- ポップカルチャーの総合ニュースサイト

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

mantan-web.jp

mantan-web.jp

pc_main.css

slick.css

jquery.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

mantan-web.jp

mantan-web.jp

pc_main.css

slick.css

jquery.min.js

lazysizes.min.js

prebid.js

bidding-manager.js

gpt.js

publishertag.js

mantanweb.js

widgets.js

ofi.js

slick.min.js

stickyfill.min.js

clear_nocontext_interval.js

no_contextmenu.js

gtm.js

js

analytics.js

001_size9.jpg

clear.gif

logo.svg

logo_h.png

001_size4.jpg

001_size4.jpg

001_size4.jpg

001_size4.jpg

001_size10.jpg

001_size4.jpg

001_size4.jpg

001_size4.jpg

001_size4.jpg

001_size9.jpg

001_size4.jpg

001_size4.jpg

001_size4.jpg

001_size4.jpg

001_size9.jpg

001_size4.jpg

001_size4.jpg

001_size4.jpg

001_size4.jpg