Access topgate.co.jp. 株式会社G-gen（旧株式会社トップゲート） | Google Cloud Platform (GCP) プレミアサービスパートナー

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value13.3 s

0/100

25%

SI (Speed Index)

Value10.5 s

7/100

10%

TBT (Total Blocking Time)

Value3,560 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.33

34/100

15%

TTI (Time to Interactive)

Value25.9 s

0/100

10%

topgate.co.jp

472 ms

www.topgate.co.jp

479 ms

style.css

189 ms

jquery-1.11.0.min.js

562 ms

btn-over.js

379 ms

Our browser made a total of 108 requests to load all elements on the main page. We found that 82% of them (89 requests) were addressed to the original Topgate.co.jp, 11% (12 requests) were made to Qiita.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3.1 sec) relates to the external source Qiita.com.

Content Size

598.6 kB

After Optimization

502.3 kB

In fact, the total size of Topgate.co.jp main page is 598.6 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 477.2 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 29.0 kB

Original 38.2 kB
After minification 36.4 kB
After compression 9.3 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 29.0 kB or 76% of the original size.

Image Optimization

-2%

Potential reduce by 11.2 kB

Original 477.2 kB
After minification 466.1 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. Topgate images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 32.0 kB

Original 52.9 kB
After minification 52.9 kB
After compression 20.9 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 32.0 kB or 60% of the original size.

CSS Optimization

-80%

Potential reduce by 24.2 kB

Original 30.2 kB
After minification 27.3 kB
After compression 6.0 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. Topgate.co.jp needs all CSS files to be minified and compressed as it can save up to 24.2 kB or 80% of the original size.

Requests Now

104

After Optimization

The browser has sent 104 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Topgate. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 39 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

[aria-hidden="true"] elements contain focusable descendents

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

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

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 Topgate.co.jp 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 Topgate.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

topgate.co.jp

Open Graph data is detected on the main page of Topgate. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

株式会社G-gen（旧 株式会社トップゲート） | Google Cloud Platform (GCP) プレミアサービスパートナー

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

topgate.co.jp

www.topgate.co.jp

style.css

jquery-1.11.0.min.js

btn-over.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

topgate.co.jp

www.topgate.co.jp

style.css

jquery-1.11.0.min.js

btn-over.js

change2.js

menu-over.js

jquery.pageslide.min.js

jquery.pageslide.min.js

qiita-widget-simple.min.js

shCore.js

shBrushAS3.js

shBrushBash.js

shBrushColdFusion.js

shBrushClojure.js

shBrushCpp.js

shBrushCSharp.js

shBrushCss.js

shBrushDelphi.js

shBrushDiff.js

shBrushErlang.js

shBrushFSharp.js

shBrushGroovy.js

shBrushJava.js

shBrushJavaFX.js

shBrushJScript.js

shBrushLatex.js

shBrushMatlabKey.js

shBrushObjC.js

shBrushPerl.js

shBrushPhp.js

shBrushPlain.js

shBrushPowerShell.js

shBrushPython.js

shBrushR.js

shBrushRuby.js

shBrushScala.js

shBrushSql.js

shBrushVb.js

shBrushXml.js

head_logo1.gif

head_logo2.gif

btn_head_menu.gif

株式会社G-gen（旧株式会社トップゲート） | Google Cloud Platform (GCP) プレミアサービスパートナー