Access tcgakki.com. TC楽器・大久保管楽器店・アドバンスギターズ | 楽器の買取りと販売（旧 THE中古楽器屋）東京 / 新大久保

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value12.3 s

0/100

25%

SI (Speed Index)

Value16.2 s

0/100

10%

TBT (Total Blocking Time)

Value30,530 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value43.0 s

0/100

10%

tcgakki.com

868 ms

base.css

468 ms

index.css

314 ms

bannar.js

318 ms

preload.js

347 ms

Our browser made a total of 138 requests to load all elements on the main page. We found that 91% of them (126 requests) were addressed to the original Tcgakki.com, 3% (4 requests) were made to Translate.googleapis.com and 1% (2 requests) were made to Googleadservices.com. The less responsive or slowest element that took the longest time to load (3.2 sec) belongs to the original domain Tcgakki.com.

Content Size

2.9 MB

After Optimization

1.9 MB

In fact, the total size of Tcgakki.com main page is 2.9 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 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 50.4 kB

Original 68.0 kB
After minification 64.9 kB
After compression 17.6 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 50.4 kB or 74% of the original size.

Image Optimization

-26%

Potential reduce by 606.0 kB

Original 2.4 MB
After minification 1.7 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. Obviously, Tcgakki needs image optimization as it can save up to 606.0 kB or 26% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-66%

Potential reduce by 292.4 kB

Original 444.4 kB
After minification 395.4 kB
After compression 152.0 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 292.4 kB or 66% of the original size.

CSS Optimization

-76%

Potential reduce by 24.6 kB

Original 32.4 kB
After minification 25.6 kB
After compression 7.9 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. Tcgakki.com needs all CSS files to be minified and compressed as it can save up to 24.6 kB or 76% of the original size.

Requests Now

136

After Optimization

111

The browser has sent 136 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tcgakki. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 4 to 1 for CSS 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

[aria-*] attributes do not match their roles

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 keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

Image elements do not have [alt] attributes

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

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

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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

High

Image elements do not have [alt] attributes

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

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 Tcgakki.com 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 Tcgakki.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

tcgakki.com

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

TC楽器・大久保管楽器店・アドバンスギターズ | 楽器の買取りと販売（旧 THE中古楽器屋）東京 / 新大久保

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

tcgakki.com

base.css

index.css

bannar.js

preload.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

tcgakki.com

base.css

index.css

bannar.js

preload.js

ajax_request.js

prototype.js

scriptaculous.js

lightbox.js

lightbox.css

element.js

conversion.js

effects.js

bg.jpg

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idx2_r2_c11.jpg

idx2_r2_c12.jpg

idx2_r2_c13.jpg

search.jpg

to_cart_f01.jpg

spacer.gif

sellLnk.jpg

kaitori728x70c.jpg

premium487b.jpg

yVoice238.jpg

Sbanner728x90_83.png

indexShop.jpg

topTit.jpg

SPGUIDE.jpg

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