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Click here to check amazing D Collections Lib Keio content for Japan. Otherwise, check out these important facts you probably never knew about dcollections.lib.keio.ac.jp
慶應義塾大学メディアセンターデジタルコレクション (Keio D Collections) は、慶應義塾大学メディアセンターが所蔵する貴重資料や特殊コレクションを公開するサイトです。 電子化されたコレクション資料には、解説と目録を付しています。特に記載がないものは、三田メディアセンターが所蔵するコレクションです。Visit dcollections.lib.keio.ac.jp
We analyzed Dcollections.lib.keio.ac.jp page load time and found that the first response time was 591 ms and then it took 8.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
dcollections.lib.keio.ac.jp performance score
Our browser made a total of 34 requests to load all elements on the main page. We found that all of those requests were addressed to Dcollections.lib.keio.ac.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (3.7 sec) belongs to the original domain Dcollections.lib.keio.ac.jp.
Page size can be reduced by 141.9 kB (5%)
In fact, the total size of Dcollections.lib.keio.ac.jp main page is 2.8 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. 50% of websites need less resources to load. Images take 2.6 MB which makes up the majority of the site volume.
Potential reduce by 25.1 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. This page needs HTML code to be minified as it can gain 5.3 kB, which is 17% 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 25.1 kB or 81% of the original size.
Potential reduce by 103.1 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. D Collections Lib Keio images are well optimized though.
Potential reduce by 13.6 kB
Potential reduce by 83 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. Dcollections.lib.keio.ac.jp has all CSS files already compressed.
Number of requests can be reduced by 9 (28%)
dcollections.lib.keio.ac.jp accessibility score
These are opportunities to improve the legibility of your content.
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.
Image elements do not have [alt] attributes
dcollections.lib.keio.ac.jp best practices score
Trust and Safety
Does not use HTTPS
Ensure CSP is effective against XSS attacks
dcollections.lib.keio.ac.jp SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
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/).
Document uses legible font sizes
Tap targets are not sized appropriately
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dcollections.lib.keio.ac.jp can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Japanese language. Our system also found out that Dcollections.lib.keio.ac.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.
Open Graph description is not detected on the main page of D Collections Lib Keio. 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: