473 ms in total
45 ms
222 ms
206 ms
Welcome to gsas.columbia.edu homepage info - get ready to check GSAS Columbia best content for United States right away, or after learning these important things about gsas.columbia.edu
Visit gsas.columbia.eduWe analyzed Gsas.columbia.edu page load time and found that the first response time was 45 ms and then it took 428 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.
gsas.columbia.edu performance score
name
value
score
weighting
Value4.4 s
17/100
10%
Value12.2 s
0/100
25%
Value8.0 s
22/100
10%
Value880 ms
32/100
30%
Value0.32
36/100
15%
Value17.1 s
4/100
10%
45 ms
4 ms
6 ms
8 ms
10 ms
Our browser made a total of 37 requests to load all elements on the main page. We found that 92% of them (34 requests) were addressed to the original Gsas.columbia.edu, 5% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Search.twitter.com. The less responsive or slowest element that took the longest time to load (103 ms) relates to the external source Search.twitter.com.
Page size can be reduced by 400.7 kB (21%)
1.9 MB
1.5 MB
In fact, the total size of Gsas.columbia.edu main page is 1.9 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. 65% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.
Potential reduce by 20.4 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. 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 20.4 kB or 73% of the original size.
Potential reduce by 99.0 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. GSAS Columbia images are well optimized though.
Potential reduce by 207.4 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 207.4 kB or 72% of the original size.
Potential reduce by 73.9 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. Gsas.columbia.edu needs all CSS files to be minified and compressed as it can save up to 73.9 kB or 82% of the original size.
Number of requests can be reduced by 9 (26%)
35
26
The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of GSAS 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 6 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
gsas.columbia.edu
45 ms
css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css
4 ms
css_5P_qmuEQFSH6HHgD_NSTatuuh_MKb5iXCFx7luAmUTk.css
6 ms
css_plXtUDcT1h_Ym23emecp3HNi87GIfHyDMH24Cangjyg.css
8 ms
css_h91CmloTV6m5NDMjMxBddjyr-A7L6Ax86r6SeHNy8ZQ.css
10 ms
css_Tw3Nr29TnZ5r0iAXDxkazbvk6Cf3wGfHu09f8Q7ZOqY.css
13 ms
js_jpJjaUC0z8JMIyav5oQrYykDRUb64rpaUDpB4Y9aklU.js
16 ms
js_pJ5R8FI35QmbmdVG-TSsEtjVzxibmgJe_BEdBvwwEL0.js
15 ms
js_5MbCJKXfIkyEF2s0UZGPcFCBwo1GKUFRCQOdJePrNE4.js
14 ms
js_A2bgiJteJfG4truaihJslklbFG-UtXBtgn1mVvwttWc.js
15 ms
js_EvEh6uGN48lNyNa2_ze_1lI7xjcbJjg1-nqkLwSx6FM.js
35 ms
analytics.js
49 ms
search.json
103 ms
mickey.png
18 ms
background.png
17 ms
logo.png
16 ms
slide_one.jpg
27 ms
slide_two_0.jpg
41 ms
GSAS-Slide01.jpg
17 ms
GSAS-Slide02.jpg
20 ms
flowers.jpg
52 ms
vanamquad.jpg
48 ms
twitter_bird.png
20 ms
icon_st.png
22 ms
icon_i09.png
25 ms
gsas_give2.png
27 ms
icon_linkedin_large.png
37 ms
icon_twitter_large.png
37 ms
GSAS_ApplyBanner.png
38 ms
icon_superscript_gray.png
44 ms
icon_109low_gray.png
43 ms
icon_give_gray.png
47 ms
icon_linkedin_gray.png
45 ms
icon_twitter_gray.png
48 ms
loading.gif
50 ms
gsas.columbia.edu
53 ms
collect
23 ms
gsas.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.
gsas.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
gsas.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 Gsas.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 Gsas.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.
gsas.columbia.edu
Open Graph description is not detected on the main page of GSAS 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: