1.3 sec in total
92 ms
921 ms
275 ms
Visit alumni.columbia.edu now to see the best up-to-date Alumni Columbia content for United States and also check out these interesting facts you probably never knew about alumni.columbia.edu
Visit alumni.columbia.eduWe analyzed Alumni.columbia.edu page load time and found that the first response time was 92 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.
alumni.columbia.edu performance score
name
value
score
weighting
Value4.5 s
14/100
10%
Value10.4 s
0/100
25%
Value8.2 s
20/100
10%
Value1,260 ms
19/100
30%
Value0.1
89/100
15%
Value14.7 s
8/100
10%
92 ms
20 ms
20 ms
21 ms
40 ms
Our browser made a total of 126 requests to load all elements on the main page. We found that 50% of them (63 requests) were addressed to the original Alumni.columbia.edu, 8% (10 requests) were made to Static.xx.fbcdn.net and 5% (6 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (348 ms) relates to the external source Cs.gssprt.jp.
Page size can be reduced by 264.3 kB (33%)
793.8 kB
529.5 kB
In fact, the total size of Alumni.columbia.edu main page is 793.8 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. 50% of websites need less resources to load. Images take 477.9 kB which makes up the majority of the site volume.
Potential reduce by 49.7 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 7.4 kB, which is 12% 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 49.7 kB or 78% of the original size.
Potential reduce by 23.0 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. Alumni Columbia images are well optimized though.
Potential reduce by 46.7 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 46.7 kB or 57% of the original size.
Potential reduce by 144.9 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. Alumni.columbia.edu needs all CSS files to be minified and compressed as it can save up to 144.9 kB or 85% of the original size.
Number of requests can be reduced by 83 (69%)
120
37
The browser has sent 120 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alumni 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 16 to 1 for JavaScripts and from 30 to 1 for CSS and as a result speed up the page load time.
alumni.columbia.edu
92 ms
aggregator.css
20 ms
node.css
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defaults.css
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system.css
40 ms
system-menus.css
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user.css
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content-module.css
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ctools.css
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date.css
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datepicker.css
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jquery.timeentry.css
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filefield.css
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lightbox.css
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panels.css
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fieldgroup.css
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views.css
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onecol.css
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drawer.css
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tabs.css
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messages.css
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block-editing.css
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wireframes.css
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layout.css
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columbiaalumni.css
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calendar.css
57 ms
views_slideshow.css
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js_cde6c480ff85f8fa08432c9b2319606c.js
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analytics.js
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all.js
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tc.min.js
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insight.min.js
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loader0.js
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bg.jpg
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icon_crown.gif
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columbiaalumni_logo.png
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search.png
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nav_bg_first_off.jpg
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background.jpg
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career.jpg
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social-facebook.png
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alumni.columbia.edu accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
button, link, and menuitem elements do not have accessible names.
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
alumni.columbia.edu best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
Issues were logged in the Issues panel in Chrome Devtools
alumni.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 Alumni.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 Alumni.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.
alumni.columbia.edu
Open Graph description is not detected on the main page of Alumni 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: