2.7 sec in total
269 ms
1.9 sec
498 ms
Visit lib.uva.nl now to see the best up-to-date Lib Uva content for Netherlands and also check out these interesting facts you probably never knew about lib.uva.nl
Visit lib.uva.nlWe analyzed Lib.uva.nl page load time and found that the first response time was 269 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
lib.uva.nl performance score
name
value
score
weighting
Value11.3 s
0/100
10%
Value13.6 s
0/100
25%
Value12.9 s
2/100
10%
Value4,280 ms
1/100
30%
Value0.09
92/100
15%
Value21.8 s
1/100
10%
269 ms
254 ms
532 ms
178 ms
184 ms
Our browser made a total of 27 requests to load all elements on the main page. We found that 74% of them (20 requests) were addressed to the original Lib.uva.nl, 7% (2 requests) were made to D1bxh8uas1mnw7.cloudfront.net and 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (532 ms) belongs to the original domain Lib.uva.nl.
Page size can be reduced by 250.6 kB (53%)
474.1 kB
223.5 kB
In fact, the total size of Lib.uva.nl main page is 474.1 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. 30% of websites need less resources to load. Images take 256.6 kB which makes up the majority of the site volume.
Potential reduce by 38.1 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 11.4 kB, which is 24% 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 38.1 kB or 80% of the original size.
Potential reduce by 102.0 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, Lib Uva needs image optimization as it can save up to 102.0 kB or 40% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 106.1 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 106.1 kB or 65% of the original size.
Potential reduce by 4.4 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. Lib.uva.nl needs all CSS files to be minified and compressed as it can save up to 4.4 kB or 61% of the original size.
Number of requests can be reduced by 13 (50%)
26
13
The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lib Uva. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.
search.do
269 ms
primo_library_wro_UVA_en_US.css
254 ms
primo_library_web.js
532 ms
add2home.js
178 ms
add2home.css
184 ms
embed.js
45 ms
custom.js
197 ms
pleaseWait.js
158 ms
topbanner-rechts-leeg.jpg
102 ms
uva-logo-en.jpg
101 ms
icon_arrow_sendTo.png
103 ms
banner.png
103 ms
diagram2HQ.png
404 ms
altmetric_badges-98e4a0c5363439e08b1f025f231428bc.js
22 ms
0.png
40 ms
icon_star_on.png
95 ms
bg_strip_search_tabs.png
133 ms
icon_clear_search.png
134 ms
bg_strip_btn_grey.png
289 ms
bg_strip_footer.png
132 ms
ga.js
44 ms
custom_userdetails.jsp
104 ms
ui-bg_gloss-wave_35_f6a828_500x100.png
169 ms
icon_sso_loading.gif
168 ms
pds
425 ms
__utm.gif
19 ms
PDSMExlibris.css
90 ms
lib.uva.nl accessibility score
lib.uva.nl 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
Missing source maps for large first-party JavaScript
lib.uva.nl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Page is blocked from indexing
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
N/A
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lib.uva.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 Lib.uva.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.
lib.uva.nl
Open Graph description is not detected on the main page of Lib Uva. 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: