Report Summary

  • 57

    Performance

    Renders faster than
    73% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

bspeedtest.jp

ブロードバンドスピードテスト(回線速度・通信速度測定診断サイト)

Page Load Speed

4.6 sec in total

First Response

493 ms

Resources Loaded

4 sec

Page Rendered

125 ms

bspeedtest.jp screenshot

About Website

Visit bspeedtest.jp now to see the best up-to-date Bspeedtest content for Japan and also check out these interesting facts you probably never knew about bspeedtest.jp

回線速度や通信速度のスピードテストができます。速度向上の裏技もあります。

Visit bspeedtest.jp

Key Findings

We analyzed Bspeedtest.jp page load time and found that the first response time was 493 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

bspeedtest.jp performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

36/100

10%

LCP (Largest Contentful Paint)

Value4.0 s

50/100

25%

SI (Speed Index)

Value5.5 s

54/100

10%

TBT (Total Blocking Time)

Value640 ms

46/100

30%

CLS (Cumulative Layout Shift)

Value0.019

100/100

15%

TTI (Time to Interactive)

Value5.4 s

72/100

10%

Network Requests Diagram

bspeedtest.jp

493 ms

www.bspeedtest.jp

1380 ms

script.js

19 ms

sc_jp_logo_256x69@2x.png

87 ms

GooglePlay2015_118x37@2x.png

123 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 10% of them (7 requests) were addressed to the original Bspeedtest.jp, 22% (16 requests) were made to Speedcheckercdn.com and 18% (13 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Bspeedtest.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 743.1 kB (42%)

Content Size

1.8 MB

After Optimization

1.0 MB

In fact, the total size of Bspeedtest.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. 45% of websites need less resources to load. Javascripts take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 199.3 kB

  • Original 255.9 kB
  • After minification 255.8 kB
  • After compression 56.6 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 199.3 kB or 78% of the original size.

Image Optimization

-4%

Potential reduce by 10.4 kB

  • Original 271.1 kB
  • After minification 260.7 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. Bspeedtest images are well optimized though.

JavaScript Optimization

-43%

Potential reduce by 533.0 kB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 701.3 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 533.0 kB or 43% of the original size.

CSS Optimization

-3%

Potential reduce by 429 B

  • Original 12.6 kB
  • After minification 12.6 kB
  • After compression 12.2 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. Bspeedtest.jp has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 41 (59%)

Requests Now

69

After Optimization

28

The browser has sent 69 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bspeedtest. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

bspeedtest.jp accessibility score

89

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Internationalization and localization

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

Impact

Issue

High

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

Names and labels

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.

Impact

Issue

High

Image elements do not have [alt] attributes

Best Practices

bspeedtest.jp best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

bspeedtest.jp SEO score

93

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

Mobile Friendly

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/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    UTF-8

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

Open Graph data is detected on the main page of Bspeedtest. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: