1.3 sec in total
448 ms
649 ms
227 ms
Visit ciesin.columbia.edu now to see the best up-to-date Ciesin Columbia content for United States and also check out these interesting facts you probably never knew about ciesin.columbia.edu
Visit ciesin.columbia.eduWe analyzed Ciesin.columbia.edu page load time and found that the first response time was 448 ms and then it took 876 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster. This domain responded with an error, which can significantly jeopardize Ciesin.columbia.edu rating and web reputation
ciesin.columbia.edu performance score
name
value
score
weighting
Value1.7 s
91/100
10%
Value4.1 s
47/100
25%
Value1.7 s
100/100
10%
Value800 ms
36/100
30%
Value0.176
68/100
15%
Value4.9 s
78/100
10%
448 ms
13 ms
37 ms
79 ms
12 ms
Our browser made a total of 24 requests to load all elements on the main page. We found that 92% of them (22 requests) were addressed to the original Ciesin.columbia.edu, 4% (1 request) were made to Sedac.ciesin.columbia.edu and 4% (1 request) were made to Ws1.ems.eosdis.nasa.gov. The less responsive or slowest element that took the longest time to load (448 ms) belongs to the original domain Ciesin.columbia.edu.
Page size can be reduced by 30.4 kB (29%)
103.2 kB
72.8 kB
In fact, the total size of Ciesin.columbia.edu main page is 103.2 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. Only 10% of websites need less resources to load. Images take 64.5 kB which makes up the majority of the site volume.
Potential reduce by 21.5 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 7.6 kB, which is 27% 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 21.5 kB or 78% of the original size.
Potential reduce by 1.3 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. Ciesin Columbia images are well optimized though.
Potential reduce by 4.3 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 4.3 kB or 61% of the original size.
Potential reduce by 3.3 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. Ciesin.columbia.edu needs all CSS files to be minified and compressed as it can save up to 3.3 kB or 80% of the original size.
Number of requests can be reduced by 14 (64%)
22
8
The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ciesin Columbia. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
ciesin.columbia.edu
448 ms
presentation_style.css
13 ms
handle-legacy.js
37 ms
ntpagetag.js
79 ms
back_about.gif
12 ms
title.png
13 ms
navback.gif
23 ms
home_off.gif
23 ms
contact_off.gif
26 ms
spacer.gif
25 ms
about_off.gif
24 ms
progproj_off.gif
26 ms
icon-leaving-site.gif
34 ms
data_off.gif
32 ms
ed_outreach_off.gif
34 ms
2016-epi_final.jpg
121 ms
rss_icon.png
33 ms
logo_sm.png
34 ms
bluenog_footer.gif
43 ms
ntpagetag.gif
89 ms
home_on.gif
17 ms
sitemap_on.gif
12 ms
siteindex_on.gif
13 ms
contact_on.gif
14 ms
ciesin.columbia.edu accessibility score
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Image elements do not have [alt] attributes
Form elements do not have associated labels
ciesin.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
ciesin.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
Image elements do not have [alt] attributes
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ciesin.columbia.edu can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Ciesin.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.
ciesin.columbia.edu
Open Graph description is not detected on the main page of Ciesin 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: