Tools & Wizards About Us
vbm.link screenshot

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

vbm.link

バレーボールマガジン | 全日本バレー、Vリーグ、大学バレー、高校バレーの最新情報をお届けするバレーボールWebマガジン

Page Load Speed

23.9 sec in total

First Response

603 ms

Resources Loaded

23 sec

Page Rendered

290 ms

About Website

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

全日本バレー、Vリーグ、大学バレー、高校バレーの最新情報をお届けするバレーボールWebマガジン｜バレーボールマガジン。

Visit vbm.link

Key Findings

We analyzed Vbm.link page load time and found that the first response time was 603 ms and then it took 23.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

vbm.link performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

28/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

31/100

25%

SI (Speed Index)

Value7.1 s

31/100

10%

TBT (Total Blocking Time)

Value110 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.008

100/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

Network Requests Diagram

vbm.link

603 ms

vbm.link

1706 ms

adsbygoogle.js

39 ms

style.css

178 ms

EnhancingCSS.css

552 ms

Our browser made a total of 105 requests to load all elements on the main page. We found that 84% of them (88 requests) were addressed to the original Vbm.link, 3% (3 requests) were made to Spsvcpc-tls.i-mobile.co.jp and 2% (2 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (19.9 sec) relates to the external source Ir-jp.amazon-adsystem.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 82.8 kB (10%)

Content Size

807.1 kB

After Optimization

724.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vbm.link main page is 807.1 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. 45% of websites need less resources to load. Images take 448.5 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 54.1 kB

  • Original 64.8 kB
  • After minification 62.3 kB
  • After compression 10.7 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 54.1 kB or 84% of the original size.

Image Optimization

-0%

Potential reduce by 2.1 kB

  • Original 448.5 kB
  • After minification 446.4 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. Vbm images are well optimized though.

JavaScript Optimization

-5%

Potential reduce by 13.3 kB

  • Original 253.9 kB
  • After minification 253.9 kB
  • After compression 240.6 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. This website has mostly compressed JavaScripts.

CSS Optimization

-33%

Potential reduce by 13.2 kB

  • Original 40.0 kB
  • After minification 38.2 kB
  • After compression 26.7 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. Vbm.link needs all CSS files to be minified and compressed as it can save up to 13.2 kB or 33% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (16%)

Requests Now

100

After Optimization

84

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 100 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vbm. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

vbm.link accessibility score

88

Accessibility Issues

ARIA

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.

Impact

Issue

High

button, link, and menuitem elements do not have accessible names.

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.

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

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

vbm.link best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

vbm.link SEO score

86

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

Links do not have descriptive text

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

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vbm.link 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 Vbm.link 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 Vbm. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: