Report Summary

  • 11

    Performance

    Renders faster than
    24% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 76

    SEO

    Google-friendlier than
    35% of websites

sega.jp

SEGA セガ | 製品情報

Page Load Speed

9.1 sec in total

First Response

633 ms

Resources Loaded

7.6 sec

Page Rendered

809 ms

sega.jp screenshot

About Website

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

セガ公式サイトです。SteamやEpic GamesなどPCゲーム、PS5やPS4、Switchなど家庭用ゲーム、またスマホゲームも。様々なプラットフォームで楽しめるセガのゲームラインナップをご紹介。

Visit sega.jp

Key Findings

We analyzed Sega.jp page load time and found that the first response time was 633 ms and then it took 8.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

sega.jp performance score

11

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value22.3 s

0/100

25%

SI (Speed Index)

Value17.7 s

0/100

10%

TBT (Total Blocking Time)

Value17,830 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.313

37/100

15%

TTI (Time to Interactive)

Value31.5 s

0/100

10%

Network Requests Diagram

sega.jp

633 ms

style.css

784 ms

sega.js

293 ms

gtm.js

77 ms

logo-sega-sammy-group.png

332 ms

Our browser made a total of 99 requests to load all elements on the main page. We found that 72% of them (71 requests) were addressed to the original Sega.jp, 4% (4 requests) were made to Platform.twitter.com and 4% (4 requests) were made to Facebook.com. The less responsive or slowest element that took the longest time to load (3.6 sec) belongs to the original domain Sega.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.6 MB (22%)

Content Size

7.0 MB

After Optimization

5.5 MB

In fact, the total size of Sega.jp main page is 7.0 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. 60% 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 67.6 kB

  • Original 82.1 kB
  • After minification 72.6 kB
  • After compression 14.6 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. This page needs HTML code to be minified as it can gain 9.5 kB, which is 12% 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 67.6 kB or 82% of the original size.

Image Optimization

-3%

Potential reduce by 151.7 kB

  • Original 5.3 MB
  • After minification 5.1 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 images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 441.4 kB

  • Original 645.7 kB
  • After minification 606.4 kB
  • After compression 204.3 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 441.4 kB or 68% of the original size.

CSS Optimization

-87%

Potential reduce by 893.7 kB

  • Original 1.0 MB
  • After minification 836.0 kB
  • After compression 130.1 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. Sega.jp needs all CSS files to be minified and compressed as it can save up to 893.7 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (26%)

Requests Now

96

After Optimization

71

The browser has sent 96 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SEGA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

sega.jp accessibility score

71

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.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

sega.jp best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

sega.jp SEO score

76

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

High

robots.txt is not valid

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

Mobile Friendly

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/).

Impact

Issue

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