3.5 sec in total
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Welcome to catalogue.leidenuniv.nl homepage info - get ready to check Catalogue Leidenuniv best content for Netherlands right away, or after learning these important things about catalogue.leidenuniv.nl
Visit catalogue.leidenuniv.nlWe analyzed Catalogue.leidenuniv.nl page load time and found that the first response time was 211 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
catalogue.leidenuniv.nl performance score
211 ms
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Our browser made a total of 43 requests to load all elements on the main page. We found that 84% of them (36 requests) were addressed to the original Catalogue.leidenuniv.nl, 5% (2 requests) were made to Google-analytics.com and 5% (2 requests) were made to Ltfl.librarything.com. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Lampje.leidenuniv.nl.
Page size can be reduced by 260.8 kB (63%)
416.1 kB
155.4 kB
In fact, the total size of Catalogue.leidenuniv.nl main page is 416.1 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. 25% of websites need less resources to load. Javascripts take 310.3 kB which makes up the majority of the site volume.
Potential reduce by 44.2 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 11.4 kB, which is 21% 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 44.2 kB or 81% of the original size.
Potential reduce by 3.7 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. Catalogue Leidenuniv images are well optimized though.
Potential reduce by 210.1 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 210.1 kB or 68% of the original size.
Potential reduce by 2.9 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. Catalogue.leidenuniv.nl needs all CSS files to be minified and compressed as it can save up to 2.9 kB or 56% of the original size.
Number of requests can be reduced by 32 (76%)
42
10
The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Catalogue Leidenuniv. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and as a result speed up the page load time.
search.do
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catalogue.leidenuniv.nl SEO score
N/A
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Catalogue.leidenuniv.nl can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Catalogue.leidenuniv.nl 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.
catalogue.leidenuniv.nl
Open Graph description is not detected on the main page of Catalogue Leidenuniv. 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: