Access roundabout-inc.com. 株式会社ラウンドアバウト｜私たちは、企業の「サービスの創造」をサポートします。

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

19/100

10%

LCP (Largest Contentful Paint)

Value8.1 s

2/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.034

100/100

15%

TTI (Time to Interactive)

Value4.3 s

85/100

10%

roundabout-inc.com

539 ms

roundabout-inc.com

870 ms

top.css

178 ms

slideshow.css

355 ms

common.js

512 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that all of those requests were addressed to Roundabout-inc.com and no external sources were called. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Roundabout-inc.com.

Content Size

545.4 kB

After Optimization

296.3 kB

In fact, the total size of Roundabout-inc.com main page is 545.4 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. 20% of websites need less resources to load. Javascripts take 331.3 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 7.3 kB

Original 9.9 kB
After minification 8.8 kB
After compression 2.6 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 1.1 kB, which is 11% 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 7.3 kB or 74% of the original size.

Image Optimization

-0%

Potential reduce by 52 B

Original 191.4 kB
After minification 191.3 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. Roundabout Inc images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 231.1 kB

Original 331.3 kB
After minification 298.1 kB
After compression 100.2 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 231.1 kB or 70% of the original size.

CSS Optimization

-83%

Potential reduce by 10.7 kB

Original 12.9 kB
After minification 9.1 kB
After compression 2.2 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. Roundabout-inc.com needs all CSS files to be minified and compressed as it can save up to 10.7 kB or 83% of the original size.

Requests Now

After Optimization

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Roundabout Inc. 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.

Accessibility Issues

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.

High

[aria-*] attributes do not match their roles

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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

High

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

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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.

These are opportunities to improve keyboard navigation in your application.

High

Some elements have a [tabindex] value greater than 0

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

Language and Encoding

Language Detected

JA
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Roundabout-inc.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 Roundabout-inc.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

roundabout-inc.com

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

Report Summary

Performance

Accessibility

Best Practices

SEO

株式会社ラウンドアバウト｜私たちは、企業の「サービスの創造」をサポートします。

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

roundabout-inc.com

roundabout-inc.com

top.css

slideshow.css

common.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

roundabout-inc.com

roundabout-inc.com

top.css

slideshow.css

common.js

smooth.js

jquery-1.6.1.min.js

glonav.js

jquery.min.js

ddaccordion.js

dda.js

mootools-1.3.2-core.js

mootools-1.3.2.1-more.js

slideshow.js

top_logo.gif

top_text.gif

slide01.jpg

nav01_off.gif

nav02_off.gif

nav03_off.gif

nav04_off.gif

nav05_off.gif

nav06_off.gif

nav07_off.gif

top_title.gif

topimg_001.gif

toptopic_off.gif

topimg_002.jpg

topimg005.jpg

toptopic3.gif

top_txt01.gif

top_icon01.gif

top_icon02.gif

top_icon03.gif

top_txt02.webp

top_icon04.webp

controller.png

controller-controls.png

loader.png

slide00t.jpg

slide01t.jpg

slide02t.jpg

slide03t.jpg