Access rewindpc.com. パソコン・タブレット・デジタル家電の通販 Rewind PC |

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

31/100

25%

SI (Speed Index)

Value3.6 s

86/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.8 s

89/100

10%

rewindpc.com

902 ms

m_sys_common.css

347 ms

import.css

359 ms

script.js

362 ms

349 ms

Our browser made a total of 135 requests to load all elements on the main page. We found that 79% of them (106 requests) were addressed to the original Rewindpc.com, 3% (4 requests) were made to Google-analytics.com and 2% (3 requests) were made to Sync.fout.jp. The less responsive or slowest element that took the longest time to load (3.9 sec) belongs to the original domain Rewindpc.com.

Content Size

1.1 MB

After Optimization

963.3 kB

In fact, the total size of Rewindpc.com main page is 1.1 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. 45% of websites need less resources to load. Images take 915.9 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 94.0 kB

Original 113.6 kB
After minification 100.7 kB
After compression 19.6 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. This page needs HTML code to be minified as it can gain 12.9 kB, which is 11% 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 94.0 kB or 83% of the original size.

Image Optimization

-2%

Potential reduce by 21.4 kB

Original 915.9 kB
After minification 894.5 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. Rewind PC images are well optimized though.

JavaScript Optimization

-47%

Potential reduce by 37.0 kB

Original 79.0 kB
After minification 77.2 kB
After compression 42.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 37.0 kB or 47% of the original size.

CSS Optimization

-81%

Potential reduce by 31.4 kB

Original 38.6 kB
After minification 31.5 kB
After compression 7.2 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. Rewindpc.com needs all CSS files to be minified and compressed as it can save up to 31.4 kB or 81% of the original size.

Requests Now

131

After Optimization

The browser has sent 131 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rewind PC. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 11 to 1 for CSS 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

High

Serves images with low resolution

Low

Detected JavaScript libraries

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

Language and Encoding

Language Detected

JA
Language Claimed

JA
Encoding

EUC-JP

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rewindpc.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 Rewindpc.com main page’s claimed encoding is euc-jp. 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

rewindpc.com

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

パソコン・タブレット・デジタル家電の通販 Rewind PC |

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

rewindpc.com

m_sys_common.css

import.css

script.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

rewindpc.com

m_sys_common.css

import.css

script.js

check_history.css

pager.css

shopdetail.css

ranking.css

basket.css

security.css

category_menu.css

topicpath.css

catalog.css

ga.js

count.makeshop.jp

rewindbanatop.gif

login.gif

gnav.gif

l_searchTitle.png

search.gif

category.gif

mitsumori.gif

anshin01.gif

warranty.jpg

newstitle.gif

oyakudati.gif

logo_drill.gif

sacdirect.gif

logo_sac.gif

today_sp.gif

000000002191.jpg

top_todaysale_order.gif

000000002083.jpg

toshiba_top_2015.jpg

000000001299.jpg

000000002184.jpg

000000002183.jpg

000000002179.jpg

top_weekly_title.gif

000000001987.jpg

000000002068.jpg

000000001984.jpg

000000001983.jpg

dsp20131201.jpg