4.8 sec in total
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Visit exhibitions.library.columbia.edu now to see the best up-to-date Exhibitions Library Columbia content for United States and also check out these interesting facts you probably never knew about exhibitions.library.columbia.edu
Columbia University Libraries are the heart of the intellectual life at Columbia, and inspire inquiry, advance knowledge, catalyze discovery, and shape an inclusive and vibrant discourse all enabled b...
Visit exhibitions.library.columbia.eduWe analyzed Exhibitions.library.columbia.edu page load time and found that the first response time was 110 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
exhibitions.library.columbia.edu performance score
name
value
score
weighting
Value3.1 s
46/100
10%
Value4.0 s
51/100
25%
Value13.3 s
2/100
10%
Value1,040 ms
26/100
30%
Value0.013
100/100
15%
Value27.3 s
0/100
10%
110 ms
52 ms
310 ms
169 ms
98 ms
Our browser made a total of 131 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Exhibitions.library.columbia.edu, 27% (36 requests) were made to Derivativo-2.library.columbia.edu and 20% (26 requests) were made to Derivativo-1.library.columbia.edu. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source Derivativo-2.library.columbia.edu.
Page size can be reduced by 418.1 kB (8%)
5.3 MB
4.8 MB
In fact, the total size of Exhibitions.library.columbia.edu main page is 5.3 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. 70% of websites need less resources to load. Javascripts take 2.6 MB which makes up the majority of the site volume.
Potential reduce by 347.4 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 44.1 kB, which is 11% 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 347.4 kB or 87% of the original size.
Potential reduce by 67.0 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. Exhibitions Library Columbia images are well optimized though.
Potential reduce by 682 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. This website has mostly compressed JavaScripts.
Potential reduce by 3.0 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. Exhibitions.library.columbia.edu has all CSS files already compressed.
Number of requests can be reduced by 7 (5%)
128
121
The browser has sent 128 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Exhibitions Library Columbia. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.
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exhibitions.library.columbia.edu 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
Links do not have a discernible name
exhibitions.library.columbia.edu best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
exhibitions.library.columbia.edu SEO score
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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Exhibitions.library.columbia.edu can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Exhibitions.library.columbia.edu 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.
exhibitions.library.columbia.edu
Open Graph description is not detected on the main page of Exhibitions Library Columbia. 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: