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13s.bufsiz.jp screenshot

53

Performance

Renders faster than
71% of other websites
40

Accessibility

Visual factors better than
that of 18% of websites
75

Best Practices

More advanced features
available than in
36% of websites
50

SEO

Google-friendlier than
18% of websites

First Response

617 ms

Resources Loaded

8.9 sec

Page Rendered

317 ms

13s.bufsiz.jp screenshot

About Website

Click here to check amazing 13 S Bufsiz content for Japan. Otherwise, check out these important facts you probably never knew about 13s.bufsiz.jp

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Key Findings

We analyzed 13s.bufsiz.jp page load time and found that the first response time was 617 ms and then it took 9.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value7.1 s

6/100

25%

SI (Speed Index)

Value6.0 s

47/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.9 s

27/100

10%

13s.bufsiz.jp

617 ms

commercial.css

345 ms

encount

345 ms

fire

363 ms

077259700

627 ms

Our browser made a total of 177 requests to load all elements on the main page. We found that 1% of them (2 requests) were addressed to the original 13s.bufsiz.jp, 16% (29 requests) were made to Asumi.shinobi.jp and 5% (8 requests) were made to Ums.adtechjp.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Spcdnpc.i-mobile.co.jp.

Content Size

511.2 kB

After Optimization

350.2 kB

In fact, the total size of 13s.bufsiz.jp main page is 511.2 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. 30% of websites need less resources to load. Javascripts take 257.1 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 18.7 kB

Original 27.5 kB
After minification 27.1 kB
After compression 8.8 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 18.7 kB or 68% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

Original 220.6 kB
After minification 220.6 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. 13 S Bufsiz images are well optimized though.

JavaScript Optimization

-53%

Potential reduce by 137.3 kB

Original 257.1 kB
After minification 255.5 kB
After compression 119.8 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 137.3 kB or 53% of the original size.

CSS Optimization

-82%

Potential reduce by 4.9 kB

Original 6.0 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. 13s.bufsiz.jp needs all CSS files to be minified and compressed as it can save up to 4.9 kB or 82% of the original size.

Requests Now

161

After Optimization

21

The browser has sent 161 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 13 S Bufsiz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 47 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

High

Form elements do not have associated labels

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Page is blocked from indexing

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

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

JA
Language Claimed

N/A
Encoding

SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 13s.bufsiz.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 13s.bufsiz.jp 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

13s.bufsiz.jp

Open Graph description is not detected on the main page of 13 S Bufsiz. 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: