Tools & Wizards About Us
saf.or.jp screenshot

Report Summary

  • 3

    Performance

    Renders faster than
    20% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

saf.or.jp

公益財団法人埼玉県芸術文化振興財団

Page Load Speed

10.2 sec in total

First Response

2.3 sec

Resources Loaded

7.5 sec

Page Rendered

371 ms

saf.or.jp screenshot

About Website

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

公益財団法人埼玉県芸術文化振興財団の公式サイトです。彩の国さいたま芸術劇場、埼玉会館の2館を管理運営しております。

Visit saf.or.jp

Key Findings

We analyzed Saf.or.jp page load time and found that the first response time was 2.3 sec and then it took 7.9 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

saf.or.jp performance score

3

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value13.3 s

0/100

25%

SI (Speed Index)

Value31.5 s

0/100

10%

TBT (Total Blocking Time)

Value8,760 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.767

5/100

15%

TTI (Time to Interactive)

Value15.5 s

7/100

10%

Network Requests Diagram

saf.or.jp

2288 ms

common.css

337 ms

style.css

524 ms

index.css

367 ms

global.css

389 ms

Our browser made a total of 145 requests to load all elements on the main page. We found that 81% of them (118 requests) were addressed to the original Saf.or.jp, 8% (12 requests) were made to Google.com and 2% (3 requests) were made to Cse.google.com. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Saf.or.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 631.2 kB (17%)

Content Size

3.8 MB

After Optimization

3.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Saf.or.jp main page is 3.8 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 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 113.0 kB

  • Original 126.7 kB
  • After minification 91.9 kB
  • After compression 13.7 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 34.8 kB, which is 27% 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 113.0 kB or 89% of the original size.

Image Optimization

-2%

Potential reduce by 71.8 kB

  • Original 3.0 MB
  • After minification 2.9 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. Saf images are well optimized though.

JavaScript Optimization

-49%

Potential reduce by 185.6 kB

  • Original 376.3 kB
  • After minification 359.9 kB
  • After compression 190.7 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 185.6 kB or 49% of the original size.

CSS Optimization

-83%

Potential reduce by 260.8 kB

  • Original 312.9 kB
  • After minification 295.1 kB
  • After compression 52.1 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. Saf.or.jp needs all CSS files to be minified and compressed as it can save up to 260.8 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 34 (25%)

Requests Now

138

After Optimization

104

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 138 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Saf. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

saf.or.jp

saf.or.jp

2288 ms

common.css

common.css

337 ms

style.css

style.css

524 ms

index.css

index.css

367 ms

global.css

global.css

389 ms

tab.css

tab.css

390 ms

colorbox_ticket.css

colorbox_ticket.css

500 ms

jsapi

jsapi

45 ms

styleswitcher.js

styleswitcher.js

556 ms

rollover.js

rollover.js

580 ms

heightLine.js

heightLine.js

582 ms

yetii.js

yetii.js

666 ms

tab.js

tab.js

694 ms

jquery.page-scroller.js

jquery.page-scroller.js

736 ms

jquery.colorbox.js

jquery.colorbox.js

965 ms

colorbox-setting.js

colorbox-setting.js

778 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

805 ms

jquery.bxslider.css

jquery.bxslider.css

830 ms

jquery.min.js

jquery.min.js

74 ms

s_retargeting.js

s_retargeting.js

541 ms

dc.js

dc.js

54 ms

common_bg_01.gif

common_bg_01.gif

171 ms

header_bg.gif

header_bg.gif

185 ms

logo01.gif

logo01.gif

182 ms

header_text_01_off.gif

header_text_01_off.gif

181 ms

header_font_01.gif

header_font_01.gif

197 ms

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199 ms

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337 ms

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header_text_02_off.gif

347 ms

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371 ms

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390 ms

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431 ms

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432 ms

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499 ms

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517 ms

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1762 ms

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2090 ms

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1755 ms

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1523 ms

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2025 ms

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1688 ms

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1856 ms

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1950 ms

top_title_01.gif

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1936 ms

top_btn01_off.gif

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2019 ms

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2113 ms

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2145 ms

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2159 ms

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2185 ms

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2193 ms

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top_tab_06.png

2272 ms

category_icon_Saitama.gif

category_icon_Saitama.gif

2289 ms

category_icon_ArtHall.gif

category_icon_ArtHall.gif

2340 ms

category_icon_Admin.gif

category_icon_Admin.gif

2355 ms

category_icon_Kuma.gif

category_icon_Kuma.gif

2349 ms

cse.js

cse.js

35 ms

top_title_02.gif

top_title_02.gif

2355 ms

cse.js

cse.js

141 ms

__utm.gif

__utm.gif

16 ms

S6UE9ewOFyE

S6UE9ewOFyE

136 ms

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2291 ms

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2290 ms

top_tab_13.png

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2360 ms

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2336 ms

jsapi

jsapi

42 ms

top_tab_15.png

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2361 ms

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2340 ms

default+ja.css

default+ja.css

3 ms

default.css

default.css

39 ms

default+ja.I.js

default+ja.I.js

14 ms

default.css

default.css

42 ms

www-embed-player-vflZsBgOl.css

www-embed-player-vflZsBgOl.css

97 ms

www-embed-player.js

www-embed-player.js

117 ms

async-ads.js

async-ads.js

75 ms

google_custom_search_watermark.gif

google_custom_search_watermark.gif

35 ms

small-logo.png

small-logo.png

24 ms

search_box_icon.png

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24 ms

clear.gif

clear.gif

24 ms

nav_logo114.png

nav_logo114.png

21 ms

category_icon_Music.gif

category_icon_Music.gif

2310 ms

common_icon_ticket.gif

common_icon_ticket.gif

2299 ms

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2297 ms

category_icon_CinemaEvent.gif

category_icon_CinemaEvent.gif

2316 ms

yrK4EqpSRdoujKQmsJoZ5WaLgeULvcWnibQMQSxOOnM.js

yrK4EqpSRdoujKQmsJoZ5WaLgeULvcWnibQMQSxOOnM.js

12 ms

ad_status.js

ad_status.js

67 ms

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2302 ms

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2323 ms

2UX7WLTfW3W8TclTUvlFyQ.woff

2UX7WLTfW3W8TclTUvlFyQ.woff

124 ms

RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff

RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff

142 ms

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2324 ms

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2314 ms

beacon.gif

beacon.gif

167 ms

182 ms

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1326 ms

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category_icon_Drama.gif

1184 ms

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1173 ms

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1181 ms

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category_icon_Dance.gif

1144 ms

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1078 ms

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1066 ms

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1078 ms

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1105 ms

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1126 ms

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1086 ms

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1086 ms

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1036 ms

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1048 ms

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1134 ms

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1153 ms

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1077 ms

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1157 ms

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1142 ms

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1057 ms

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1044 ms

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1106 ms

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1122 ms

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1053 ms

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1072 ms

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1072 ms

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1088 ms

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1054 ms

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1084 ms

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1088 ms

common_icon_01.gif

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1043 ms

footer_bg.gif

footer_bg.gif

1058 ms

bx_loader.gif

bx_loader.gif

1192 ms

controls.png

controls.png

1234 ms

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1467 ms

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1512 ms

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large.css

166 ms

Accessibility Review

saf.or.jp accessibility score

77

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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

Tables and lists

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

Impact

Issue

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.

Best Practices

saf.or.jp best practices score

58

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

saf.or.jp SEO score

77

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 Saf.or.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 Saf.or.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

saf.or.jp

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