Report Summary

  • 71

    Performance

    Renders faster than
    82% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

rokkomann.co.jp

ロッコーマン株式会社 ギター ウクレレ バイオリン マンドリン卸売・専門店

Page Load Speed

4 sec in total

First Response

1 sec

Resources Loaded

2.8 sec

Page Rendered

154 ms

rokkomann.co.jp screenshot

About Website

Click here to check amazing Rokkomann content for Japan. Otherwise, check out these important facts you probably never knew about rokkomann.co.jp

クラシックギター、アコースティックギター、フラメンコギター、合奏用ギター、エレアコ、エレガット、ウクレレ、マンドリン属、バイオリン属、弓、楽器ケース、弦、パーツ、小物の卸売・専門店。

Visit rokkomann.co.jp

Key Findings

We analyzed Rokkomann.co.jp page load time and found that the first response time was 1 sec and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

rokkomann.co.jp performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

70/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

10/100

25%

SI (Speed Index)

Value4.4 s

73/100

10%

TBT (Total Blocking Time)

Value90 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value2.7 s

97/100

10%

Network Requests Diagram

rokkomann.co.jp

1043 ms

Oribebanner.jpg

1208 ms

fair.gif

352 ms

gaiyou.gif

353 ms

otoiawase.gif

356 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that all of those requests were addressed to Rokkomann.co.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Rokkomann.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 48.2 kB (20%)

Content Size

240.2 kB

After Optimization

192.0 kB

In fact, the total size of Rokkomann.co.jp main page is 240.2 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. 25% of websites need less resources to load. Images take 203.4 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 31.4 kB

  • Original 36.8 kB
  • After minification 34.4 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. 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 31.4 kB or 85% of the original size.

Image Optimization

-8%

Potential reduce by 16.8 kB

  • Original 203.4 kB
  • After minification 186.5 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. Rokkomann images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 10 (18%)

Requests Now

56

After Optimization

46

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rokkomann. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Review

rokkomann.co.jp accessibility score

79

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

Links do not have a discernible name

Best Practices

rokkomann.co.jp 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

rokkomann.co.jp SEO score

77

Search Engine Optimization Advices

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 Rokkomann.co.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 Rokkomann.co.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 description is not detected on the main page of Rokkomann. 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: