Tools & Wizards About Us
sumai-lab.net screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

sumai-lab.net

理想郷はムーミン谷【2026年4月】

Page Load Speed

10.6 sec in total

First Response

1.4 sec

Resources Loaded

9.1 sec

Page Rendered

186 ms

sumai-lab.net screenshot

About Website

Visit sumai-lab.net now to see the best up-to-date Sumai Lab content for Japan and also check out these interesting facts you probably never knew about sumai-lab.net

お金もできたしマンション買うかな？と思うけど踏み切れない。ほんとはどんな所で生活したんだろか？と思ったとき、ムーミン谷が思い浮かぶ。

Visit sumai-lab.net

Key Findings

We analyzed Sumai-lab.net page load time and found that the first response time was 1.4 sec and then it took 9.2 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

sumai-lab.net performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.8 s

0/100

10%

LCP (Largest Contentful Paint)

Value12.0 s

0/100

25%

SI (Speed Index)

Value19.1 s

0/100

10%

TBT (Total Blocking Time)

Value160 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0.034

100/100

15%

TTI (Time to Interactive)

Value14.0 s

10/100

10%

Network Requests Diagram

www.sumai-lab.net

1353 ms

wp-emoji-release.min.js

650 ms

colorbox.css

347 ms

styles.css

324 ms

easingslider.min.css

353 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that 78% of them (64 requests) were addressed to the original Sumai-lab.net, 2% (2 requests) were made to Google-analytics.com and 2% (2 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Sumai-lab.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 323.1 kB (36%)

Content Size

905.5 kB

After Optimization

582.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sumai-lab.net main page is 905.5 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. 35% of websites need less resources to load. Images take 409.5 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 34.2 kB

  • Original 45.3 kB
  • After minification 44.3 kB
  • After compression 11.2 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 34.2 kB or 75% of the original size.

Image Optimization

-7%

Potential reduce by 29.5 kB

  • Original 409.5 kB
  • After minification 380.0 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. Sumai Lab images are well optimized though.

JavaScript Optimization

-55%

Potential reduce by 221.5 kB

  • Original 405.0 kB
  • After minification 400.9 kB
  • After compression 183.5 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 221.5 kB or 55% of the original size.

CSS Optimization

-83%

Potential reduce by 37.9 kB

  • Original 45.7 kB
  • After minification 37.1 kB
  • After compression 7.8 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. Sumai-lab.net needs all CSS files to be minified and compressed as it can save up to 37.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 45 (56%)

Requests Now

81

After Optimization

36

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sumai Lab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.sumai-lab.net

www.sumai-lab.net

1353 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

650 ms

colorbox.css

colorbox.css

347 ms

styles.css

styles.css

324 ms

easingslider.min.css

easingslider.min.css

353 ms

pagenavi-css.css

pagenavi-css.css

359 ms

jquery.js

jquery.js

1376 ms

jquery-migrate.min.js

jquery-migrate.min.js

579 ms

jquery.colorbox-min.js

jquery.colorbox-min.js

694 ms

jquery-colorbox-wrapper-min.js

jquery-colorbox-wrapper-min.js

676 ms

jquery.easingslider.min.js

jquery.easingslider.min.js

691 ms

wp-chgfontsize.js

wp-chgfontsize.js

881 ms

style.css

style.css

1238 ms

jquery-1.6.1.min.js

jquery-1.6.1.min.js

1939 ms

common.js

common.js

1030 ms

platform.js

platform.js

54 ms

jquery.form.min.js

jquery.form.min.js

1026 ms

scripts.js

scripts.js

1021 ms

wp-embed.min.js

wp-embed.min.js

1196 ms

ga.js

ga.js

14 ms

tag.js

tag.js

186 ms

sdk.js

sdk.js

131 ms

good_design_logo.png

good_design_logo.png

173 ms

header_logo.png

header_logo.png

310 ms

enquete_29.jpg

enquete_29.jpg

957 ms

sumailab_amazon.jpg

sumailab_amazon.jpg

1009 ms

project_m29_banner.gif

project_m29_banner.gif

645 ms

column_83_banner.jpg

column_83_banner.jpg

1117 ms

reform_banner.jpg

reform_banner.jpg

1275 ms

top_sumailab_title.png

top_sumailab_title.png

625 ms

top_about_title.png

top_about_title.png

991 ms

top_topics_title.png

top_topics_title.png

1014 ms

top_topics_subtitle.png

top_topics_subtitle.png

1285 ms

new.gif

new.gif

1318 ms

enquete_29_eye-180x125.jpg

enquete_29_eye-180x125.jpg

1402 ms

enquete_28_eye-180x125.jpg

enquete_28_eye-180x125.jpg

1426 ms

project_m29_eye-180x125.jpg

project_m29_eye-180x125.jpg

1446 ms

column_83_eye-180x125.jpg

column_83_eye-180x125.jpg

1593 ms

top_contents_title.png

top_contents_title.png

1598 ms

top_contents_subtitle.png

top_contents_subtitle.png

1692 ms

top_contents_title-column.png

top_contents_title-column.png

1748 ms

top_contents_img-column.png

top_contents_img-column.png

1791 ms

top_contents_title-questionnaire.png

top_contents_title-questionnaire.png

1819 ms

top_contents_img-questionnaire.png

top_contents_img-questionnaire.png

2137 ms

top_contents_title-monozukuri.png

top_contents_title-monozukuri.png

1983 ms

top_contents_img-monozukuri.png

top_contents_img-monozukuri.png

1997 ms

top_contents_title-reform.png

top_contents_title-reform.png

2121 ms

top_contents_img-reform.png

top_contents_img-reform.png

2157 ms

top_contents_title-jitsugen.png

top_contents_title-jitsugen.png

2133 ms

top_contents_img-project.png

top_contents_img-project.png

2311 ms

footer_logo.png

footer_logo.png

2349 ms

mec_logo.png

mec_logo.png

2440 ms

sakakilab.gif

sakakilab.gif

2441 ms

__utm.gif

__utm.gif

64 ms

decrease_activated.gif

decrease_activated.gif

2408 ms

decrease_deactivated.gif

decrease_deactivated.gif

2464 ms

increase_activated.gif

increase_activated.gif

2629 ms

increase_deactivated.gif

increase_deactivated.gif

2675 ms

text_size.gif

text_size.gif

2696 ms

130 ms

xd_arbiter.php

xd_arbiter.php

78 ms

xd_arbiter.php

xd_arbiter.php

137 ms

spacer05.gif

spacer05.gif

2623 ms

tag

tag

19 ms

search.png

search.png

2523 ms

navi.png

navi.png

2478 ms

loading.gif

loading.gif

2419 ms

nav-arrow-next.png

nav-arrow-next.png

2134 ms

nav-arrow-prev.png

nav-arrow-prev.png

2131 ms

under_navi.png

under_navi.png

2170 ms

footer_navi.png

footer_navi.png

2352 ms

nav-icon-inactive.png

nav-icon-inactive.png

2322 ms

nav-icon-active.png

nav-icon-active.png

1777 ms

fbevents.js

fbevents.js

28 ms

be1ed93f154f602c_2269.js

be1ed93f154f602c_2269.js

164 ms

ya.js

ya.js

353 ms

80x

80x

548 ms

22 ms

combo

combo

298 ms

rep

rep

300 ms

pb.js

pb.js

548 ms

404 ms

Accessibility Review

sumai-lab.net accessibility score

79

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

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

sumai-lab.net best practices score

67

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

High

Browser errors were logged to the console

SEO Factors

sumai-lab.net SEO score

91

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

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 Sumai-lab.net 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 Sumai-lab.net 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

sumai-lab.net

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