Access honto.jp. 電子書籍ストア - デジタル漫画・コミック購入ならhonto

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

10/100

10%

LCP (Largest Contentful Paint)

Value7.8 s

3/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value710 ms

42/100

30%

CLS (Cumulative Layout Shift)

Value0.019

100/100

15%

TTI (Time to Interactive)

Value14.3 s

9/100

10%

honto.jp

322 ms

jquery-1.12.4.min.js

196 ms

import.css

822 ms

pc.css

159 ms

jquery.js

351 ms

Our browser made a total of 114 requests to load all elements on the main page. We found that 25% of them (29 requests) were addressed to the original Honto.jp, 46% (52 requests) were made to Image.honto.jp and 21% (24 requests) were made to Img.honto.jp. The less responsive or slowest element that took the longest time to load (2.9 sec) relates to the external source Img.honto.jp.

Content Size

1.8 MB

After Optimization

1.6 MB

In fact, the total size of Honto.jp main page is 1.8 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 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 79.6 kB

Original 99.0 kB
After minification 93.8 kB
After compression 19.5 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 79.6 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 1.8 kB

Original 1.3 MB
After minification 1.3 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. Honto images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 58.6 kB

Original 283.3 kB
After minification 281.0 kB
After compression 224.7 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 58.6 kB or 21% of the original size.

CSS Optimization

-27%

Potential reduce by 34.5 kB

Original 127.3 kB
After minification 127.3 kB
After compression 92.8 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. Honto.jp needs all CSS files to be minified and compressed as it can save up to 34.5 kB or 27% of the original size.

Requests Now

112

After Optimization

The browser has sent 112 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Honto. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 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 the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

<frame> or <iframe> elements do not have a title

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

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

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

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 Honto.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 Honto.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

honto.jp

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

電子書籍ストア - デジタル漫画・コミック購入ならhonto - 無料・試し読みも

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

honto.jp

jquery-1.12.4.min.js

import.css

pc.css

jquery.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

honto.jp

jquery-1.12.4.min.js

import.css

pc.css

jquery.js

honto.js

run.js

pc.js

a8sales.js

PrdProductInfoCommon.js

EtcHeader.js

collect.js

PrdKeywordSearchBox.js

PrdKeywordSearchCampaign.js

MemDisplayRandomWantBookListPc.js

MoveCartItem.js

BrowserPushConfig.js

BrowserPush.js

PrdSearchBoxPc.js

swiper.min.css

swiper.min.js

EtcDisplayAppealCarouselBanner.js

firebase-app.js

firebase-messaging.js

s_code.min.js

vclp.js

gtm.js

logo_honto_01.png

sprite_assets_pc_20240221_182855.png

icon_hd_info01.png

icon_hd_info03.png

banner_footmark_l_k70.png

banner_all-70off_top.png

banner_gacha_top_i5t.png

banner_half-ranking_top.png

banner_e-hon_top_b2u.png

icon_eb.svg

banner_bigbonus-sale_top.png

banner_houbunsha-com_top_62e.jpg

banner_shueisha-popularity-com_top_0oe.jpg

banner_shueisha-com-mainichi-kinenbi_top.png

icon_ec.svg

banner_e-hon_ad_b2u.png