3.6 sec in total
920 ms
2.5 sec
180 ms
Click here to check amazing Damnet content for Japan. Otherwise, check out these important facts you probably never knew about damnet.or.jp
日本ダム協会ホームページでは、ダムに関する様々な情報を提供しています。
Visit damnet.or.jpWe analyzed Damnet.or.jp page load time and found that the first response time was 920 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
damnet.or.jp performance score
name
value
score
weighting
Value3.5 s
36/100
10%
Value13.6 s
0/100
25%
Value6.7 s
36/100
10%
Value1,640 ms
12/100
30%
Value0.007
100/100
15%
Value15.3 s
7/100
10%
920 ms
538 ms
566 ms
185 ms
224 ms
Our browser made a total of 24 requests to load all elements on the main page. We found that all of those requests were addressed to Damnet.or.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Damnet.or.jp.
Page size can be reduced by 62.1 kB (54%)
115.6 kB
53.5 kB
In fact, the total size of Damnet.or.jp main page is 115.6 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. Only 10% of websites need less resources to load. HTML takes 57.3 kB which makes up the majority of the site volume.
Potential reduce by 51.9 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 17.4 kB, which is 30% 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 51.9 kB or 91% of the original size.
Potential reduce by 9.4 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. Obviously, Damnet needs image optimization as it can save up to 9.4 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 513 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 513 B or 55% of the original size.
Potential reduce by 215 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. Damnet.or.jp needs all CSS files to be minified and compressed as it can save up to 215 B or 60% of the original size.
Number of requests can be reduced by 7 (30%)
23
16
The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Damnet. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
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damnet.or.jp accessibility score
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
<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.
Definition list items are not wrapped in <dl> elements
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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
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
damnet.or.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
damnet.or.jp SEO score
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
JA
N/A
SHIFT_JIS
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Damnet.or.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 Damnet.or.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.
{{og_description}}
damnet.or.jp
Open Graph description is not detected on the main page of Damnet. 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: