Access keitainfo.com. 携帯電話最新情報 - ドコモ・FOMA・au・ソフトバンクSoftBank・イーモバイルemobile

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

51/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

79/100

25%

SI (Speed Index)

Value17.7 s

0/100

10%

TBT (Total Blocking Time)

Value3,210 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value16.1 s

6/100

10%

keitainfo.com

515 ms

menu.css

333 ms

jsapi

19 ms

t13n

30 ms

brand

31 ms

Our browser made a total of 81 requests to load all elements on the main page. We found that 11% of them (9 requests) were addressed to the original Keitainfo.com, 12% (10 requests) were made to Ad.jp.ap.valuecommerce.com and 11% (9 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Auctions.c.yimg.jp.

Content Size

276.3 kB

After Optimization

179.0 kB

In fact, the total size of Keitainfo.com main page is 276.3 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. 60% of websites need less resources to load. Images take 136.5 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 50.8 kB

Original 65.4 kB
After minification 64.7 kB
After compression 14.6 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 50.8 kB or 78% of the original size.

Image Optimization

-5%

Potential reduce by 6.6 kB

Original 136.5 kB
After minification 129.9 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. Keitainfo images are well optimized though.

JavaScript Optimization

-51%

Potential reduce by 34.3 kB

Original 67.8 kB
After minification 67.3 kB
After compression 33.5 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 34.3 kB or 51% of the original size.

CSS Optimization

-83%

Potential reduce by 5.5 kB

Original 6.7 kB
After minification 4.4 kB
After compression 1.1 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. Keitainfo.com needs all CSS files to be minified and compressed as it can save up to 5.5 kB or 83% of the original size.

Requests Now

After Optimization

The browser has sent 78 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Keitainfo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts 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-*] attributes do not match their roles

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

High

Form elements do not have associated labels

High

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 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>).

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

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

High

Document uses plugins

Language and Encoding

Language Detected

JA
Language Claimed

JA
Encoding

SHIFT_JIS

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

keitainfo.com

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

携帯電話最新情報 - ドコモ・FOMA・au・ソフトバンクSoftBank・イーモバイルemobile

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

keitainfo.com

menu.css

jsapi

t13n

brand

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

keitainfo.com

menu.css

jsapi

t13n

brand

show_ads.js

t13n

brand

051781100

urchin.js

dng_v_1.gif

show

0.gif

ir

0.gif

rss.gif

red.gif

ekisyo.jpg

microSD2GB.jpg

trance-micro.jpg

keikai14.gif

QR.gif

show

transliteration.css

transliteration.I.js

ca-pub-5477772499025053.js

zrt_lookup.html

show_ads_impl.js

google_custom_search_watermark.gif

htmlbanner

htmlbanner

htmlbanner

inputtools.js

ads

osd.js

ads

ads

1x1.gif

1x1.gif

1x1.gif

1x1.gif

1x1.gif

1x1.gif