789 ms in total
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Welcome to ldeo.columbia.edu homepage info - get ready to check Ldeo Columbia best content for United States right away, or after learning these important things about ldeo.columbia.edu
Lamont-Doherty Earth Observatory seeks fundamental knowledge about the origin, evolution, and future of the natural world.
Visit ldeo.columbia.eduWe analyzed Ldeo.columbia.edu page load time and found that the first response time was 57 ms and then it took 732 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.
ldeo.columbia.edu performance score
name
value
score
weighting
Value5.1 s
9/100
10%
Value13.7 s
0/100
25%
Value10.7 s
7/100
10%
Value2,960 ms
3/100
30%
Value0.537
14/100
15%
Value20.7 s
2/100
10%
57 ms
107 ms
35 ms
26 ms
26 ms
Our browser made a total of 69 requests to load all elements on the main page. We found that 93% of them (64 requests) were addressed to the original Ldeo.columbia.edu, 3% (2 requests) were made to Platform.twitter.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (179 ms) belongs to the original domain Ldeo.columbia.edu.
Page size can be reduced by 377.0 kB (24%)
1.5 MB
1.2 MB
In fact, the total size of Ldeo.columbia.edu main page is 1.5 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. 45% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.
Potential reduce by 38.8 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 38.8 kB or 81% of the original size.
Potential reduce by 36.4 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. Ldeo Columbia images are well optimized though.
Potential reduce by 128.3 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 128.3 kB or 64% of the original size.
Potential reduce by 173.5 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. Ldeo.columbia.edu needs all CSS files to be minified and compressed as it can save up to 173.5 kB or 83% of the original size.
Number of requests can be reduced by 36 (54%)
67
31
The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ldeo 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 from 30 to 1 for CSS and as a result speed up the page load time.
ldeo.columbia.edu
57 ms
www.ldeo.columbia.edu
107 ms
system.base.css
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views_slideshow.css
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ldap_user.css
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aggregator.css
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book.css
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comment.css
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field.css
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user.css
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views.css
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ckeditor.css
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colorbox_style.css
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ctools.css
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ldap_servers.admin.css
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panels.css
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views_slideshow_controls_text.css
107 ms
views_slideshow_cycle.css
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responsive_menus_simple.css
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styles.css
179 ms
styles2.css
111 ms
video-style.css
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gallery.css
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media.css
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css
24 ms
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169 ms
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147 ms
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118 ms
normalize.css
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responsive.css
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misc.css
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print.css
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logo.png
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widgets.js
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ldeo.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.
ldeo.columbia.edu best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Registers an unload listener
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
ldeo.columbia.edu SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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 Ldeo.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 Ldeo.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.
ldeo.columbia.edu
Open Graph description is not detected on the main page of Ldeo 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: