Report Summary

  • 22

    Performance

    Renders faster than
    42% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 81% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    47% of websites

  • 91

    SEO

    Google-friendlier than
    76% of websites

sofia-sakai.jp

ソフィア・堺(中文化会館) | ソフィア・堺は、大阪府堺市にある総合文化センターです。当施設でのイベント情報やご利用に関してご案内いたします。

Page Load Speed

5.6 sec in total

First Response

627 ms

Resources Loaded

4.3 sec

Page Rendered

700 ms

sofia-sakai.jp screenshot

About Website

Click here to check amazing Sofia Sakai content for Japan. Otherwise, check out these important facts you probably never knew about sofia-sakai.jp

Visit sofia-sakai.jp

Key Findings

We analyzed Sofia-sakai.jp page load time and found that the first response time was 627 ms and then it took 5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

sofia-sakai.jp performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.2 s

1/100

10%

LCP (Largest Contentful Paint)

Value14.1 s

0/100

25%

SI (Speed Index)

Value16.1 s

0/100

10%

TBT (Total Blocking Time)

Value370 ms

70/100

30%

CLS (Cumulative Layout Shift)

Value0.8

5/100

15%

TTI (Time to Interactive)

Value19.4 s

2/100

10%

Network Requests Diagram

sofia-sakai.jp

627 ms

base.css

326 ms

info.html

699 ms

topics.html

406 ms

spacer.gif

406 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that all of those requests were addressed to Sofia-sakai.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (3.2 sec) belongs to the original domain Sofia-sakai.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 18.5 kB (4%)

Content Size

510.0 kB

After Optimization

491.5 kB

In fact, the total size of Sofia-sakai.jp main page is 510.0 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. Only 10% of websites need less resources to load. Images take 495.6 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 4.2 kB

  • Original 5.7 kB
  • After minification 5.7 kB
  • After compression 1.5 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 4.2 kB or 74% of the original size.

Image Optimization

-1%

Potential reduce by 6.9 kB

  • Original 495.6 kB
  • After minification 488.7 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. Sofia Sakai images are well optimized though.

CSS Optimization

-85%

Potential reduce by 7.4 kB

  • Original 8.7 kB
  • After minification 7.0 kB
  • After compression 1.3 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. Sofia-sakai.jp needs all CSS files to be minified and compressed as it can save up to 7.4 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (32%)

Requests Now

25

After Optimization

17

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sofia Sakai. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Review

sofia-sakai.jp accessibility score

90

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

<frame> or <iframe> elements do not have a title

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

sofia-sakai.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

sofia-sakai.jp SEO score

91

Search Engine Optimization Advices

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

    N/A

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sofia-sakai.jp 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 Sofia-sakai.jp main page’s claimed encoding is shift_jis. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Sofia Sakai. 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: