12.3 sec in total
1.2 sec
10.8 sec
275 ms
Click here to check amazing Yokohama Kagakukan content for Japan. Otherwise, check out these important facts you probably never knew about yokohama-kagakukan.jp
はまぎんこども宇宙科学館は横浜にある体験型の科学館です。楽しく遊びながら宇宙や科学に親しむ事ができます。プラネタリウムも星空観察会など施設・イベントも充実しております。さあ、宇宙や科学のおもしろさを一緒に体験しましょう
Visit yokohama-kagakukan.jpWe analyzed Yokohama-kagakukan.jp page load time and found that the first response time was 1.2 sec and then it took 11.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
yokohama-kagakukan.jp performance score
name
value
score
weighting
Value7.0 s
1/100
10%
Value17.6 s
0/100
25%
Value11.2 s
5/100
10%
Value180 ms
92/100
30%
Value0.988
2/100
15%
Value12.4 s
14/100
10%
1197 ms
336 ms
351 ms
357 ms
729 ms
Our browser made a total of 95 requests to load all elements on the main page. We found that 94% of them (89 requests) were addressed to the original Yokohama-kagakukan.jp, 3% (3 requests) were made to Weather.livedoor.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (6.4 sec) belongs to the original domain Yokohama-kagakukan.jp.
Page size can be reduced by 2.0 MB (70%)
2.9 MB
867.8 kB
In fact, the total size of Yokohama-kagakukan.jp main page is 2.9 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. 30% of websites need less resources to load. Images take 2.4 MB which makes up the majority of the site volume.
Potential reduce by 30.1 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 30.1 kB or 76% of the original size.
Potential reduce by 1.7 MB
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, Yokohama Kagakukan needs image optimization as it can save up to 1.7 MB or 70% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 306.2 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 306.2 kB or 67% of the original size.
Potential reduce by 30.7 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. Yokohama-kagakukan.jp needs all CSS files to be minified and compressed as it can save up to 30.7 kB or 79% of the original size.
Number of requests can be reduced by 38 (41%)
93
55
The browser has sent 93 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yokohama Kagakukan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
www.yokohama-kagakukan.jp
1197 ms
base.css
336 ms
home.css
351 ms
style.css
357 ms
jquery.js
729 ms
hoverup.js
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smartRollover.js
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jquery.lightbox-0.5.js
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jquery.lightbox-0.5.css
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events_manager.css
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inquiry-form.css
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autocomplete.min.js
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resizable.min.js
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draggable.min.js
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button.min.js
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dialog.min.js
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events-manager.js
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ajaxzip2.js
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jquery.upload.js
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jquery.min.js
67 ms
jquery.bxslider.min.js
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jquery.bxslider.css
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global.css
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default.css
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wp-emoji-release.min.js
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analytics.js
44 ms
body_top_back.jpg
671 ms
logo.png
702 ms
icon_arrow_or.gif
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bnr_tel.png
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search_btn.png
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yokohama-kagakukan.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.
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
yokohama-kagakukan.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
Page has valid source maps
yokohama-kagakukan.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
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Yokohama-kagakukan.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 Yokohama-kagakukan.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.
yokohama-kagakukan.jp
Open Graph description is not detected on the main page of Yokohama Kagakukan. 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: