Access sega-games.co.jp. 株式会社セガ

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

10/100

10%

LCP (Largest Contentful Paint)

Value24.1 s

0/100

25%

SI (Speed Index)

Value13.6 s

2/100

10%

TBT (Total Blocking Time)

Value2,090 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value24.8 s

0/100

10%

sega-games.co.jp

386 ms

www.sega.co.jp

1008 ms

reset.css

431 ms

base.css

461 ms

nav.css

468 ms

Our browser made a total of 88 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Sega-games.co.jp, 72% (63 requests) were made to Sega.co.jp and 7% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Sega.co.jp.

Content Size

7.1 MB

After Optimization

6.6 MB

In fact, the total size of Sega-games.co.jp main page is 7.1 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. Only a small number of websites need less resources to load. Images take 6.2 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 44.7 kB

Original 52.4 kB
After minification 33.6 kB
After compression 7.7 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 18.8 kB, which is 36% 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 44.7 kB or 85% of the original size.

Image Optimization

-0%

Potential reduce by 21.5 kB

Original 6.2 MB
After minification 6.2 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. Sega Games images are well optimized though.

JavaScript Optimization

-51%

Potential reduce by 289.3 kB

Original 563.6 kB
After minification 558.1 kB
After compression 274.3 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 289.3 kB or 51% of the original size.

CSS Optimization

-61%

Potential reduce by 140.8 kB

Original 229.7 kB
After minification 191.9 kB
After compression 88.9 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. Sega-games.co.jp needs all CSS files to be minified and compressed as it can save up to 140.8 kB or 61% of the original size.

Requests Now

After Optimization

The browser has sent 78 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sega Games. 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 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

Displays images with incorrect aspect ratio

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

robots.txt is not valid

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 doesn't use 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 Sega-games.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 Sega-games.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

sega-games.co.jp

Open Graph data is detected on the main page of Sega Games. 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

株式会社セガ

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

sega-games.co.jp

www.sega.co.jp

reset.css

base.css

nav.css

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

sega-games.co.jp

www.sega.co.jp

reset.css

base.css

nav.css

top.css

animate.css

css

css

all.css

jquery.min.js

smoothscroll.js

jquery.inview.min.js

custom.js

adsbygoogle.js

search_form.css

search.css

search_foam.js

iframe_api

gtm.js

loading.gif

top_key_img_01.jpg

top_key_img_02.jpg

top_key_img_03.jpg

top_key_img_04.jpg

top_key_img_05.jpg

top_key_img_06.jpg

key_bg.png

key_logo.png

slogan.png

slogan_en.png

logo-sega.svg

g_nav_bg.png

mdd_inner_bg.png

menu_icon_news.png

menu_icon_company.png

link_productsite.jpg

menu_icon_group.png

menu_icon_recruit.png

menu_icon_ir.png

menu_icon_contact.png

logo-sega_w.svg

search-solid.svg