Tools & Wizards About Us
v1japan.com screenshot

Report Summary

  • 65

    Performance

    Renders faster than
    78% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

v1japan.com

ゴルフレッスン（ゴルフスクール）もゴルフスイング解析ソフトもV1

Page Load Speed

4.9 sec in total

First Response

1.3 sec

Resources Loaded

3.4 sec

Page Rendered

141 ms

v1japan.com screenshot

About Website

Visit v1japan.com now to see the best up-to-date V 1 Japan content and also check out these interesting facts you probably never knew about v1japan.com

V1は横浜でインドアゴルフレッスン（ゴルフスクール）V1ゴルフスタジオ横浜を開校し、2店舗目としてV1ゴルフスクール快活の都筑区開校をプロデュースしました。ゴルフスイング上達には映像分析が近道です。もちろんV1ゴルフスタジオ横浜、V1ゴルフスクール快活スタジオにもフル装備されています。V1はゴルフを中心につくられた映像分析ソフト。他のスポーツでも応用可能。野球、サッカー、スキー、などのスポーツ全般...

Visit v1japan.com

Key Findings

We analyzed V1japan.com page load time and found that the first response time was 1.3 sec and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

v1japan.com performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

51/100

10%

LCP (Largest Contentful Paint)

Value4.0 s

49/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value490 ms

59/100

30%

CLS (Cumulative Layout Shift)

Value0.025

100/100

15%

TTI (Time to Interactive)

Value3.9 s

89/100

10%

Network Requests Diagram

v1japan.com

1310 ms

common.css

334 ms

theme.css

685 ms

e40715e0ef678c3.jpg

1616 ms

0017917900dgiimage0.jpg

686 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that all of those requests were addressed to V1japan.com and no external sources were called. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain V1japan.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 208.9 kB (38%)

Content Size

553.3 kB

After Optimization

344.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of V1japan.com main page is 553.3 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. Only 5% of websites need less resources to load. Images take 343.1 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 33.5 kB

  • Original 38.9 kB
  • After minification 21.7 kB
  • After compression 5.4 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 17.2 kB, which is 44% 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 33.5 kB or 86% of the original size.

Image Optimization

-12%

Potential reduce by 39.9 kB

  • Original 343.1 kB
  • After minification 303.2 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. Obviously, V 1 Japan needs image optimization as it can save up to 39.9 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-72%

Potential reduce by 67.7 kB

  • Original 94.2 kB
  • After minification 82.8 kB
  • After compression 26.5 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 67.7 kB or 72% of the original size.

CSS Optimization

-88%

Potential reduce by 67.8 kB

  • Original 77.1 kB
  • After minification 44.1 kB
  • After compression 9.3 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. V1japan.com needs all CSS files to be minified and compressed as it can save up to 67.8 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (47%)

Requests Now

34

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of V 1 Japan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

v1japan.com

v1japan.com

1310 ms

common.css

common.css

334 ms

theme.css

theme.css

685 ms

e40715e0ef678c3.jpg

e40715e0ef678c3.jpg

1616 ms

0017917900dgiimage0.jpg

0017917900dgiimage0.jpg

686 ms

8c09297b9705627.jpg

8c09297b9705627.jpg

684 ms

562909600lvdimage0.jpg

562909600lvdimage0.jpg

536 ms

0129711200la3image0.jpg

0129711200la3image0.jpg

413 ms

014300113009q2image0.jpg

014300113009q2image0.jpg

492 ms

5329543009kwimage0.gif

5329543009kwimage0.gif

605 ms

02330011300kbeimage0.jpg

02330011300kbeimage0.jpg

663 ms

ab63492d879c97a.jpg

ab63492d879c97a.jpg

1304 ms

a6b42e089fcc2c0.jpg

a6b42e089fcc2c0.jpg

988 ms

7c000d99abf74f5.jpg

7c000d99abf74f5.jpg

1188 ms

common.js

common.js

629 ms

jquery.js

jquery.js

1203 ms

object.js

object.js

990 ms

extend.js

extend.js

948 ms

form_action.js

form_action.js

1130 ms

def_rightmenu.css

def_rightmenu.css

1040 ms

advance.css

advance.css

1065 ms

def_object.css

def_object.css

391 ms

obj_portal.css

obj_portal.css

197 ms

body_0.gif

body_0.gif

185 ms

blockMother_bg.gif

blockMother_bg.gif

168 ms

head_frame.png

head_frame.png

172 ms

mmbg.gif

mmbg.gif

169 ms

blockmenu_bg.gif

blockmenu_bg.gif

165 ms

menu_level1_off.gif

menu_level1_off.gif

182 ms

menu_level1_now.gif

menu_level1_now.gif

328 ms

menu_level1_parent_off.gif

menu_level1_parent_off.gif

333 ms

menu_endchip.gif

menu_endchip.gif

336 ms

h2_b.gif

h2_b.gif

335 ms

h3_b.gif

h3_b.gif

362 ms

footer_bg.gif

footer_bg.gif

368 ms

Accessibility Review

v1japan.com accessibility score

67

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

v1japan.com best practices score

67

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

v1japan.com SEO score

67

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

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 V1japan.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 V1japan.com 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

v1japan.com

Open Graph description is not detected on the main page of V 1 Japan. 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: