Tools & Wizards About Us
sonobelab.com screenshot

Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 50

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 50

    SEO

    Google-friendlier than
    18% of websites

sonobelab.com

園部研トップページ：面白発明の宝箱

Page Load Speed

6.8 sec in total

First Response

1.5 sec

Resources Loaded

4.6 sec

Page Rendered

640 ms

sonobelab.com screenshot

About Website

Click here to check amazing Sonobelab content for Japan. Otherwise, check out these important facts you probably never knew about sonobelab.com

22世紀を先取りする面白いシステムを発明する楽しい活動をしている園部研究室です。

Visit sonobelab.com

Key Findings

We analyzed Sonobelab.com page load time and found that the first response time was 1.5 sec and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

sonobelab.com performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

36/100

25%

SI (Speed Index)

Value7.6 s

25/100

10%

TBT (Total Blocking Time)

Value320 ms

76/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.5 s

38/100

10%

Network Requests Diagram

sonobelab.com

1496 ms

stdbaloon.js

546 ms

jquery.min.js

728 ms

kf_thumbnail.js

366 ms

show_ads.js

6 ms

Our browser made a total of 102 requests to load all elements on the main page. We found that 85% of them (87 requests) were addressed to the original Sonobelab.com, 5% (5 requests) were made to Pagead2.googlesyndication.com and 5% (5 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Sonobelab.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 187.5 kB (53%)

Content Size

355.9 kB

After Optimization

168.4 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Sonobelab.com main page is 355.9 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. HTML takes 129.5 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 106.5 kB

  • Original 129.5 kB
  • After minification 117.1 kB
  • After compression 23.0 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 106.5 kB or 82% of the original size.

Image Optimization

-10%

Potential reduce by 10.5 kB

  • Original 105.9 kB
  • After minification 95.4 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. Sonobelab images are well optimized though.

JavaScript Optimization

-58%

Potential reduce by 70.4 kB

  • Original 120.5 kB
  • After minification 115.2 kB
  • After compression 50.0 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 70.4 kB or 58% of the original size.

Requests Breakdown

Number of requests can be reduced by 63 (62%)

Requests Now

101

After Optimization

38

  • AJAX
  • Images
  • JavaScript

The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sonobelab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

sonobelab.com

sonobelab.com

1496 ms

stdbaloon.js

stdbaloon.js

546 ms

jquery.min.js

jquery.min.js

728 ms

kf_thumbnail.js

kf_thumbnail.js

366 ms

show_ads.js

show_ads.js

6 ms

kaigan6.jpg

kaigan6.jpg

178 ms

sonolab_logo_v2_314x40.jpg

sonolab_logo_v2_314x40.jpg

225 ms

favicon_c14.png

favicon_c14.png

225 ms

petisland_button.gif

petisland_button.gif

517 ms

popotan1_c14.png

popotan1_c14.png

343 ms

yacht.png

yacht.png

353 ms

readableIcon_c32.png

readableIcon_c32.png

384 ms

jun_c32.png

jun_c32.png

385 ms

ut_c32.png

ut_c32.png

386 ms

btran.png

btran.png

516 ms

rt5517315_32.png

rt5517315_32.png

529 ms

reg.gif

reg.gif

531 ms

click_c32.png

click_c32.png

595 ms

sr_c32.gif

sr_c32.gif

595 ms

keyrelayadlogo_v0_c32.png

keyrelayadlogo_v0_c32.png

678 ms

cometop_c14.gif

cometop_c14.gif

684 ms

mail_icon_sono.png

mail_icon_sono.png

706 ms

zatsunen_c14.png

zatsunen_c14.png

708 ms

stars_c14.png

stars_c14.png

726 ms

creature_c32.png

creature_c32.png

729 ms

sonolab_logo_v2_88x31.png

sonolab_logo_v2_88x31.png

846 ms

vb_c14.png

vb_c14.png

853 ms

dontforget_c14.png

dontforget_c14.png

881 ms

pptfont_c14.png

pptfont_c14.png

881 ms

michi_mark_c32.gif

michi_mark_c32.gif

913 ms

compucar_mark_c32.gif

compucar_mark_c32.gif

914 ms

transparent_c32.gif

transparent_c32.gif

1016 ms

eel_c14.png

eel_c14.png

1024 ms

cometoplogov0_c32.gif

cometoplogov0_c32.gif

1060 ms

closeport_c32.png

closeport_c32.png

1061 ms

numconnect_c32.png

numconnect_c32.png

1089 ms

ctp_online_c32.png

ctp_online_c32.png

1090 ms

sr_c14.gif

sr_c14.gif

1187 ms

michi_mark_c14.gif

michi_mark_c14.gif

1194 ms

compucar_mark_c14.gif

compucar_mark_c14.gif

1234 ms

autoinv.cgi

autoinv.cgi

1251 ms

ca-pub-7919632438875047.js

ca-pub-7919632438875047.js

107 ms

zrt_lookup.html

zrt_lookup.html

49 ms

show_ads_impl.js

show_ads_impl.js

59 ms

cometoplogov0_c14.gif

cometoplogov0_c14.gif

1104 ms

ads

ads

265 ms

face_smiley_c14.gif

face_smiley_c14.gif

1056 ms

osd.js

osd.js

16 ms

ctp_online_c14.png

ctp_online_c14.png

1134 ms

ads

ads

279 ms

ads

ads

215 ms

keyrelayadlogo_v0_c14.png

keyrelayadlogo_v0_c14.png

1026 ms

numconnect_c14.png

numconnect_c14.png

1034 ms

cats_44x14.png

cats_44x14.png

1061 ms

face_bitter_c14.gif

face_bitter_c14.gif

1075 ms

creature_c14x28.png

creature_c14x28.png

1070 ms

m_js_controller.js

m_js_controller.js

28 ms

abg.js

abg.js

48 ms

dracaena_c21x14.png

dracaena_c21x14.png

1012 ms

fairyclock_c14.png

fairyclock_c14.png

1024 ms

eclipse_c14.png

eclipse_c14.png

1061 ms

ceiling_c14.png

ceiling_c14.png

1085 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

55 ms

nessie_icon_thin_arrow_big_white.png

nessie_icon_thin_arrow_big_white.png

49 ms

s

s

37 ms

x_button_blue2.png

x_button_blue2.png

22 ms

taxi_c18x14.png

taxi_c18x14.png

1046 ms

brokendisp_c14.png

brokendisp_c14.png

1031 ms

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

6 ms

radiation_c14.png

radiation_c14.png

1014 ms

cloud_c14.png

cloud_c14.png

1021 ms

pineflower_c14.png

pineflower_c14.png

1059 ms

pachira_c19x14.png

pachira_c19x14.png

1084 ms

orgel_c14.png

orgel_c14.png

1094 ms

crowd_c14.png

crowd_c14.png

1078 ms

mail_c14.png

mail_c14.png

1018 ms

plasticbag_c17x14.png

plasticbag_c17x14.png

1028 ms

wrap_c20x14.png

wrap_c20x14.png

1061 ms

coins_c14.png

coins_c14.png

1092 ms

tissue_c14.png

tissue_c14.png

1089 ms

bed_c14.png

bed_c14.png

1085 ms

buylist_c14.png

buylist_c14.png

1017 ms

splitwork_c14.png

splitwork_c14.png

1027 ms

wholenet_c14.png

wholenet_c14.png

1058 ms

winlayout_c14.png

winlayout_c14.png

1087 ms

set_script_c14.png

set_script_c14.png

1095 ms

altdrag1_c14.png

altdrag1_c14.png

1094 ms

graphcopy_c14.png

graphcopy_c14.png

1016 ms

minimax_c14.png

minimax_c14.png

1027 ms

tilde_c14.png

tilde_c14.png

1059 ms

expabend_occur_c14.png

expabend_occur_c14.png

1053 ms

mppanel_c14.png

mppanel_c14.png

1091 ms

shift_ie_ng_c14.png

shift_ie_ng_c14.png

1091 ms

closeport_c14.png

closeport_c14.png

1014 ms

disappear_c14.png

disappear_c14.png

1027 ms

jun_c14.png

jun_c14.png

1058 ms

readableIcon_c14.gif

readableIcon_c14.gif

1062 ms

chain_link_c14.png

chain_link_c14.png

1092 ms

next_icon_sono.png

next_icon_sono.png

1091 ms

boroboro_link.png

boroboro_link.png

1184 ms

metalic_bg.jpg

metalic_bg.jpg

1026 ms

popotanback.jpg

popotanback.jpg

1061 ms

Accessibility Review

sonobelab.com accessibility score

50

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-*] attributes do not match their roles

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

High

Links do not have a discernible name

High

<object> elements do not have alternate text

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

sonobelab.com best practices score

50

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

sonobelab.com SEO score

50

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

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

High

Document uses plugins

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    EUC-JP

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sonobelab.com 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 Sonobelab.com main page’s claimed encoding is euc-jp. 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

sonobelab.com

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