Tools & Wizards About Us
iosysos.com screenshot

Report Summary

  • 57

    Performance

    Renders faster than
    73% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

iosysos.com

IOSYS OS―札幌の音楽制作チーム「IOSYS」の公式サイト

Page Load Speed

4.5 sec in total

First Response

518 ms

Resources Loaded

3.3 sec

Page Rendered

674 ms

iosysos.com screenshot

About Website

Welcome to iosysos.com homepage info - get ready to check IOSYS OS best content for Russia right away, or after learning these important things about iosysos.com

「IOSYS(イオシス)」は札幌の音楽制作チームです。アニメ・音楽ゲームへの楽曲提供、東方Projectアレンジやオリジナル音楽の自主制作CDを制作頒布しています。「チルノのパーフェクトさんすう教室」などの電波ソングMVで有名です

Visit iosysos.com

Key Findings

We analyzed Iosysos.com page load time and found that the first response time was 518 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

iosysos.com performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

90/100

10%

LCP (Largest Contentful Paint)

Value9.4 s

1/100

25%

SI (Speed Index)

Value4.0 s

80/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value1.372

0/100

15%

TTI (Time to Interactive)

Value1.8 s

100/100

10%

Network Requests Diagram

iosysos.com

518 ms

www.iosysos.com

938 ms

renew7.css

187 ms

TopLogo.png

550 ms

menu.png

694 ms

Our browser made a total of 25 requests to load all elements on the main page. We found that all of those requests were addressed to Iosysos.com and no external sources were called. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Iosysos.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 300.3 kB (19%)

Content Size

1.5 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • CSS

In fact, the total size of Iosysos.com main page is 1.5 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. 15% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 8.3 kB

  • Original 11.4 kB
  • After minification 9.8 kB
  • After compression 3.1 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 1.6 kB, which is 14% 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 8.3 kB or 73% of the original size.

Image Optimization

-19%

Potential reduce by 291.8 kB

  • Original 1.5 MB
  • After minification 1.2 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. Obviously, IOSYS OS needs image optimization as it can save up to 291.8 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-14%

Potential reduce by 192 B

  • Original 1.4 kB
  • After minification 1.4 kB
  • After compression 1.2 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. Iosysos.com needs all CSS files to be minified and compressed as it can save up to 192 B or 14% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

23

After Optimization

23

  • Images
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of IOSYS OS. According to our analytics all requests are already optimized.

Network Requests Diagram

iosysos.com

iosysos.com

518 ms

www.iosysos.com

www.iosysos.com

938 ms

renew7.css

renew7.css

187 ms

TopLogo.png

TopLogo.png

550 ms

menu.png

menu.png

694 ms

a-aboutus.png

a-aboutus.png

724 ms

a-creator.png

a-creator.png

715 ms

a-discography.png

a-discography.png

737 ms

a-works.png

a-works.png

736 ms

a-movie.png

a-movie.png

754 ms

a-whatisiosys.png

a-whatisiosys.png

872 ms

a-twitter.png

a-twitter.png

895 ms

a-facebook.png

a-facebook.png

904 ms

a-radio.png

a-radio.png

925 ms

a-iosysshop.png

a-iosysshop.png

928 ms

b-IO-0337338.png

b-IO-0337338.png

1683 ms

b-IO-0339.png

b-IO-0339.png

1396 ms

b-IOSYS25th.png

b-IOSYS25th.png

1451 ms

b-IO-0335.png

b-IO-0335.png

1872 ms

b-YT_IOG.png

b-YT_IOG.png

1644 ms

b-YT_IOm.png

b-YT_IOm.png

1328 ms

b-YT_IOSYS.png

b-YT_IOSYS.png

1699 ms

b-TW_IOSYS2021.png

b-TW_IOSYS2021.png

1576 ms

b-fanbox2.png

b-fanbox2.png

1810 ms

back.jpg

back.jpg

1566 ms

Accessibility Review

iosysos.com accessibility score

78

Accessibility Issues

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

iosysos.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

iosysos.com SEO score

62

Search Engine Optimization Advices

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

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 Iosysos.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 Iosysos.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

iosysos.com

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