4.2 sec in total
471 ms
3.3 sec
454 ms
Welcome to rbar.jp homepage info - get ready to check Rbar best content for Japan right away, or after learning these important things about rbar.jp
9月7日(土)、8日(日)千葉・幕張海浜公園にて、究極の三次元モータースポーツ、Red Bull Air Race Chiba 2019(レッドブル・エアレース)開催。時速370kmのエアレース機が駆け抜ける様は圧巻!会場内は日本各地のご当地グルメや千葉名産を楽しめるフードコート、トップアスリートたちによるショーケースなど見所満載。
Visit rbar.jpWe analyzed Rbar.jp page load time and found that the first response time was 471 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
rbar.jp performance score
name
value
score
weighting
Value4.1 s
21/100
10%
Value11.7 s
0/100
25%
Value15.4 s
1/100
10%
Value410 ms
67/100
30%
Value0.007
100/100
15%
Value23.4 s
1/100
10%
471 ms
501 ms
478 ms
710 ms
311 ms
Our browser made a total of 114 requests to load all elements on the main page. We found that 37% of them (42 requests) were addressed to the original Rbar.jp, 24% (27 requests) were made to Pbs.twimg.com and 7% (8 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Rbar.jp.
Page size can be reduced by 265.5 kB (8%)
3.3 MB
3.0 MB
In fact, the total size of Rbar.jp main page is 3.3 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.0 MB which makes up the majority of the site volume.
Potential reduce by 26.1 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 26.1 kB or 75% of the original size.
Potential reduce by 68.6 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. Rbar images are well optimized though.
Potential reduce by 111.4 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 111.4 kB or 63% of the original size.
Potential reduce by 59.4 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. Rbar.jp needs all CSS files to be minified and compressed as it can save up to 59.4 kB or 84% of the original size.
Number of requests can be reduced by 30 (29%)
105
75
The browser has sent 105 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rbar. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
rbar.jp
471 ms
common.css
501 ms
style.css
478 ms
jquery-1.11.3.min.js
710 ms
jquery.colorbox-min.js
311 ms
jquery.marquee.min.js
311 ms
main.js
379 ms
platform.js
154 ms
notosansjapanese.css
24 ms
analytics.js
21 ms
logo.png
213 ms
date.png
237 ms
date_s.png
213 ms
ticket_ico.png
212 ms
sp_logo.png
209 ms
sp_navi_ico.png
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close.png
478 ms
sample.png
1070 ms
sp_date.png
478 ms
sp_video_thumb.png
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info_thumb04.png
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gallery_thumb01.png
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gallery_thumb02.png
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802 ms
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gallery_thumb10.png
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gallery_thumb11.png
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gallery_thumb12.png
1701 ms
cm_banner.png
1839 ms
side_goods_bnr.png
1680 ms
rbarwc_banner.png
1582 ms
sponsor_bnr_01.png
1542 ms
sponsor_bnr_02.png
1572 ms
sponsor_bnr_03.png
1708 ms
sponsor_bnr_04.png
1739 ms
sponsor_bnr_05.png
1747 ms
sdk.js
59 ms
side_ticket_bg.png
1975 ms
side_qa_bg.png
2006 ms
side_about_bg.png
1864 ms
widgets.js
130 ms
social_bg.png
2283 ms
NotoSansJP-Bold.woff
69 ms
NotoSansJP-Black.woff
168 ms
NotoSansJP-Medium.woff
251 ms
NotoSansJP-Regular.woff
270 ms
NotoSansJP-DemiLight.woff
227 ms
NotoSansJP-Light.woff
268 ms
NotoSansJP-Thin.woff
266 ms
collect
33 ms
350 ms
xd_arbiter.php
69 ms
xd_arbiter.php
106 ms
timeline.d11f7a3b3287fb94220e8ee6d03cc772.js
136 ms
button.0308b81ff1714e446f674b5b9793f2cd.js
157 ms
cb=gapi.loaded_0
10 ms
cb=gapi.loaded_1
34 ms
fastbutton
95 ms
postmessageRelay
38 ms
3193398744-postmessagerelay.js
55 ms
rpc:shindig_random.js
46 ms
cb=gapi.loaded_0
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cb=gapi.loaded_1
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W5F8_SL0XFawnjxHGsZjJA.ttf
47 ms
syndication
100 ms
702409081622020096
284 ms
cb=gapi.loaded_0
6 ms
tweet_button.b9740740e0bcf9b0657c5b11bd4388da.ja.html
45 ms
like.php
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wy1X4hBW7e7.js
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LVx-xkvaJ0b.png
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proxy.jpg
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proxy.jpg
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proxy.jpg
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timeline.47ab5d19e8ed22531abcf4f86f3ae53a.light.ltr.css
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timeline.47ab5d19e8ed22531abcf4f86f3ae53a.light.ltr.css
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syndication_bundle_v1_64fcb3dd2f6da5b5f976d91a319ef73e329c1a5d.css
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syndication_bundle_v1_64fcb3dd2f6da5b5f976d91a319ef73e329c1a5d.css
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proxy.jpg
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jot.html
29 ms
rbar.jp accessibility score
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
[aria-*] attributes do not match their roles
[aria-hidden="true"] elements contain focusable descendents
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Image elements do not have [alt] attributes
Links do not have a discernible name
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
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
rbar.jp best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
rbar.jp SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
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
Document uses legible font sizes
Tap targets are not sized appropriately
JA
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rbar.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 Rbar.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.
rbar.jp
Open Graph data is detected on the main page of Rbar. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: