5.6 sec in total
889 ms
4.6 sec
124 ms
Welcome to cdtl.nus.edu.sg homepage info - get ready to check Cdtl Nus best content for Singapore right away, or after learning these important things about cdtl.nus.edu.sg
The Centre for Development of Teaching and Learning (CDTL) seeks to enhance the quality of teaching and learning at NUS and aspires to establish itself as a leading centre in higher education.
Visit cdtl.nus.edu.sgWe analyzed Cdtl.nus.edu.sg page load time and found that the first response time was 889 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
cdtl.nus.edu.sg performance score
name
value
score
weighting
Value6.3 s
3/100
10%
Value12.7 s
0/100
25%
Value10.6 s
7/100
10%
Value3,580 ms
1/100
30%
Value1.627
0/100
15%
Value22.9 s
1/100
10%
889 ms
446 ms
931 ms
448 ms
669 ms
Our browser made a total of 39 requests to load all elements on the main page. We found that all of those requests were addressed to Cdtl.nus.edu.sg and no external sources were called. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Cdtl.nus.edu.sg.
Page size can be reduced by 226.2 kB (6%)
3.8 MB
3.6 MB
In fact, the total size of Cdtl.nus.edu.sg main page is 3.8 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. 25% of websites need less resources to load. Images take 3.7 MB which makes up the majority of the site volume.
Potential reduce by 18.8 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. This page needs HTML code to be minified as it can gain 8.9 kB, which is 40% 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 18.8 kB or 86% of the original size.
Potential reduce by 122.2 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. Cdtl Nus images are well optimized though.
Potential reduce by 65.8 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 65.8 kB or 70% of the original size.
Potential reduce by 19.4 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. Cdtl.nus.edu.sg needs all CSS files to be minified and compressed as it can save up to 19.4 kB or 83% of the original size.
Number of requests can be reduced by 6 (16%)
37
31
The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cdtl Nus. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.
cdtl.nus.edu.sg
889 ms
cdtl.css
446 ms
jquery.min.js
931 ms
nivo-slider.css
448 ms
jquery.nivo.slider.js
669 ms
slider.js
449 ms
jquery.hoverIntent.minified.js
450 ms
fade.js
674 ms
searchbar-dropdown.js
673 ms
search.js
675 ms
layout_bg_repeat.png
230 ms
logo.png
232 ms
cdtl.png
231 ms
top_link_repeat.gif
227 ms
top_link_left.gif
228 ms
top_link_right.gif
231 ms
text_box.gif
455 ms
go-btn.gif
462 ms
navi_bg.gif
453 ms
banner1.jpg
1996 ms
banner2.jpg
1780 ms
banner3.jpg
1341 ms
banner4.jpg
1818 ms
banner5.jpg
1796 ms
banner6.jpg
683 ms
banner7.jpg
2450 ms
banner8.jpg
2013 ms
banner9.jpg
2451 ms
banner10.jpg
2685 ms
banner11.jpg
2497 ms
banner12.jpg
2682 ms
cdtlink.jpg
2235 ms
faculty-events.jpg
2471 ms
students-events.jpg
2685 ms
cdtl-fb.png
2677 ms
banner-trans-bg.png
2699 ms
layout_bottom_curve.png
2722 ms
footer_navi_sep.gif
2889 ms
select-bg2.gif
2896 ms
cdtl.nus.edu.sg 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
Image elements do not have [alt] attributes
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
cdtl.nus.edu.sg best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Issues were logged in the Issues panel in Chrome Devtools
cdtl.nus.edu.sg 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
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
robots.txt is not valid
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
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cdtl.nus.edu.sg 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 Cdtl.nus.edu.sg 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.
cdtl.nus.edu.sg
Open Graph description is not detected on the main page of Cdtl Nus. 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: