2.3 sec in total
585 ms
1.6 sec
172 ms
Visit ddr-navi.jp now to see the best up-to-date DDR Navi content for Japan and also check out these interesting facts you probably never knew about ddr-navi.jp
DanceDanceRevolution -DDR- が設置されているゲームセンターの情報を掲載しています
Visit ddr-navi.jpWe analyzed Ddr-navi.jp page load time and found that the first response time was 585 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
ddr-navi.jp performance score
name
value
score
weighting
Value5.4 s
6/100
10%
Value6.3 s
10/100
25%
Value9.8 s
10/100
10%
Value760 ms
39/100
30%
Value0.001
100/100
15%
Value12.5 s
14/100
10%
585 ms
601 ms
351 ms
371 ms
332 ms
Our browser made a total of 16 requests to load all elements on the main page. We found that 56% of them (9 requests) were addressed to the original Ddr-navi.jp, 19% (3 requests) were made to Google-analytics.com and 13% (2 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (614 ms) belongs to the original domain Ddr-navi.jp.
Page size can be reduced by 2.3 kB (5%)
47.4 kB
45.1 kB
In fact, the total size of Ddr-navi.jp main page is 47.4 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. Images take 27.5 kB which makes up the majority of the site volume.
Potential reduce by 1.1 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 1.1 kB or 52% of the original size.
Potential reduce by 781 B
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. DDR Navi images are well optimized though.
Potential reduce by 34 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 358 B
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. Ddr-navi.jp needs all CSS files to be minified and compressed as it can save up to 358 B or 63% of the original size.
Number of requests can be reduced by 3 (20%)
15
12
The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DDR Navi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.
ddr-navi.jp
585 ms
menu.htm
601 ms
main.htm
351 ms
main2.htm
371 ms
style.css
332 ms
heroskin.cgi
573 ms
banner.png
240 ms
top.jpg
614 ms
widgets.js
30 ms
ga.js
22 ms
counter.cgi
368 ms
__utm.gif
30 ms
timeline.d11f7a3b3287fb94220e8ee6d03cc772.js
22 ms
__utm.gif
4 ms
syndication
87 ms
317992638680797184
330 ms
ddr-navi.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
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
Buttons do not have an accessible name
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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>).
ddr-navi.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
Page has valid source maps
ddr-navi.jp SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
Document uses legible font sizes
JA
N/A
SHIFT_JIS
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ddr-navi.jp 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 Ddr-navi.jp main page’s claimed encoding is shift_jis. 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.
ddr-navi.jp
Open Graph description is not detected on the main page of DDR Navi. 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: