Access gakkicenter.com. ギターの通販なら御茶ノ水楽器センター

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value16.4 s

0/100

25%

SI (Speed Index)

Value19.2 s

0/100

10%

TBT (Total Blocking Time)

Value7,680 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.896

3/100

15%

TTI (Time to Interactive)

Value18.4 s

3/100

10%

gakkicenter.com

522 ms

www.gakkicenter.com

688 ms

sps_common.css

359 ms

default.css

547 ms

jquery.min.js

67 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 30% of them (27 requests) were addressed to the original Gakkicenter.com, 20% (18 requests) were made to Image1.shopserve.jp and 17% (15 requests) were made to Maps.googleapis.com. The less responsive or slowest element that took the longest time to load (6.4 sec) relates to the external source Image1.shopserve.jp.

Content Size

6.2 MB

After Optimization

5.5 MB

In fact, the total size of Gakkicenter.com main page is 6.2 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. 40% of websites need less resources to load. Images take 5.3 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 38.3 kB

Original 46.7 kB
After minification 36.6 kB
After compression 8.4 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 10.1 kB, which is 22% 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 38.3 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 9.3 kB

Original 5.3 MB
After minification 5.3 MB

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. Gakkicenter images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 487.4 kB

Original 717.7 kB
After minification 711.1 kB
After compression 230.3 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 487.4 kB or 68% of the original size.

CSS Optimization

-87%

Potential reduce by 90.7 kB

Original 104.8 kB
After minification 84.6 kB
After compression 14.1 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. Gakkicenter.com needs all CSS files to be minified and compressed as it can save up to 90.7 kB or 87% of the original size.

Requests Now

After Optimization

The browser has sent 83 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Gakkicenter. 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 Issues

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.

High

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

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

Form elements do not have associated labels

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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

High

Links are not crawlable

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Gakkicenter.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 Gakkicenter.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

gakkicenter.com

Open Graph description is not detected on the main page of Gakkicenter. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

ギターの通販なら御茶ノ水楽器センター

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

gakkicenter.com

www.gakkicenter.com

sps_common.css

default.css

jquery.min.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

gakkicenter.com

www.gakkicenter.com

sps_common.css

default.css

jquery.min.js

jquery.tile.js

jquery.distile.js

cal.js

analytics.js

shop_logo.jpg

ws_std_red_m_01.jpg

header_bg.gif

icon_new.png

icon_pickup.png

t_search.jpg

submitSearch.gif

rss.gif

pagetop.gif

ws_std_yl_r_01.jpg

g6120bsnv_bk_01.jpg

g6120_koa_fsr_01.jpg

g6120_bshr_afg_01.jpg

al_bfr_3s_t_pk_fl_01.jpg

al_3s_trd_m_01.jpg

al_3s_vs_m_sh_01.jpg

g12m_25_8_g_back_01.jpg

g12t_100.jpg

alnico_blue_16_01.jpg

alnico_blue_8_01.jpg

alnico_gold_15_01.jpg

bx10_3060_8_01.jpg

cp12_2550_lg_8_01.jpg

g12_80_8_c_lead_01.jpg

g12_century_16_01.jpg

g12_century_8_01.jpg

ws_std_2.jpg

embed

linkid.js

ec.js

collect

slash_000.gif

Title-news.gif

Tline-news.gif