970 ms in total
162 ms
682 ms
126 ms
Click here to check amazing Math Columbia content for United States. Otherwise, check out these important facts you probably never knew about math.columbia.edu
Department of Mathematics at Columbia University New York
Visit math.columbia.eduWe analyzed Math.columbia.edu page load time and found that the first response time was 162 ms and then it took 808 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.
math.columbia.edu performance score
name
value
score
weighting
Value3.9 s
25/100
10%
Value6.0 s
13/100
25%
Value5.1 s
62/100
10%
Value430 ms
65/100
30%
Value0.006
100/100
15%
Value7.1 s
52/100
10%
162 ms
30 ms
11 ms
19 ms
24 ms
Our browser made a total of 45 requests to load all elements on the main page. We found that 80% of them (36 requests) were addressed to the original Math.columbia.edu, 7% (3 requests) were made to Calendar.google.com and 4% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (162 ms) belongs to the original domain Math.columbia.edu.
Page size can be reduced by 350.7 kB (18%)
2.0 MB
1.6 MB
In fact, the total size of Math.columbia.edu main page is 2.0 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 1.6 MB 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. 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 21.5 kB or 81% of the original size.
Potential reduce by 69.4 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. Math Columbia images are well optimized though.
Potential reduce by 203.9 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 203.9 kB or 63% of the original size.
Potential reduce by 55.9 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. Math.columbia.edu needs all CSS files to be minified and compressed as it can save up to 55.9 kB or 80% of the original size.
Number of requests can be reduced by 17 (43%)
40
23
The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Math 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 10 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
www.math.columbia.edu
162 ms
css
30 ms
style.css
11 ms
cn-user.css
19 ms
chosen.css
24 ms
jquery.qtip.min.css
23 ms
jquery.js
40 ms
jquery-migrate.min.js
20 ms
javascript.js
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jd.gallery.css.php
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jd.gallery.css
29 ms
mootools.v1.11.js
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jd.gallery.js.php
84 ms
jd.gallery.transitions.js
30 ms
jquery.preloader.js
64 ms
cn-user.js
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embed
85 ms
mini-crown.jpg
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cmd-header-drk-blue.jpg
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menu-bg.jpg
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widget-title-bg.jpg
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building-winter.jpg
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building-winter-thumb.jpg
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111.jpg
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312-classroom.jpg
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help-room.jpg
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help-room-thumb.jpg
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lecture_course.jpg
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lecture_course-thumb.jpg
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analysis.jpg
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analysis-thumb.jpg
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01.jpg
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tea-4-thumb.jpg
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external.png
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s-BiyweUPV0v-yRb-cjciC3USBnSvpkopQaUR-2r7iU.ttf
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EFpQQyG9GqCrobXxL-KRMfEr6Hm6RMS0v1dtXsGir4g.ttf
140 ms
trajanpro-bold-webfont.woff
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embed
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print.css
11 ms
f7e12ba16863d79ebc50b5ad512d0dd5embedcompiled_fastui.css
12 ms
f7e12ba16863d79ebc50b5ad512d0dd5embedcompiled__en.js
42 ms
client.js
88 ms
cb=gapi.loaded_0
38 ms
math.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
<frame> or <iframe> elements do not have a title
Links do not have a discernible name
math.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
math.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
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Math.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 Math.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.
math.columbia.edu
Open Graph description is not detected on the main page of Math 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: