Access sph.nus.edu.sg.

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

11/100

10%

LCP (Largest Contentful Paint)

Value16.9 s

0/100

25%

SI (Speed Index)

Value15.7 s

0/100

10%

TBT (Total Blocking Time)

Value700 ms

42/100

30%

CLS (Cumulative Layout Shift)

Value0.08

94/100

15%

TTI (Time to Interactive)

Value16.9 s

5/100

10%

sph.nus.edu.sg

670 ms

sph.nus.edu.sg

1910 ms

system.base.css

440 ms

system.menus.css

661 ms

system.messages.css

666 ms

Our browser made a total of 101 requests to load all elements on the main page. We found that 84% of them (85 requests) were addressed to the original Sph.nus.edu.sg, 8% (8 requests) were made to Fonts.gstatic.com and 3% (3 requests) were made to S.ytimg.com. The less responsive or slowest element that took the longest time to load (5.8 sec) belongs to the original domain Sph.nus.edu.sg.

Content Size

4.7 MB

After Optimization

3.8 MB

In fact, the total size of Sph.nus.edu.sg main page is 4.7 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 3.7 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 47.8 kB

Original 57.0 kB
After minification 54.6 kB
After compression 9.2 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 47.8 kB or 84% of the original size.

Image Optimization

-1%

Potential reduce by 53.5 kB

Original 3.7 MB
After minification 3.6 MB

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. Sph Nus images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 374.4 kB

Original 521.5 kB
After minification 450.9 kB
After compression 147.1 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 374.4 kB or 72% of the original size.

CSS Optimization

-85%

Potential reduce by 359.4 kB

Original 424.7 kB
After minification 365.3 kB
After compression 65.4 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. Sph.nus.edu.sg needs all CSS files to be minified and compressed as it can save up to 359.4 kB or 85% of the original size.

Requests Now

After Optimization

The browser has sent 91 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sph 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 24 to 1 for JavaScripts and from 40 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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.

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Links do not have descriptive text

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

N/A
Language Claimed

EN
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sph.nus.edu.sg can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Sph.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.

Social Sharing Optimization

sph.nus.edu.sg

Open Graph description is not detected on the main page of Sph 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

sph.nus.edu.sg

sph.nus.edu.sg

system.base.css

system.menus.css

system.messages.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

sph.nus.edu.sg

sph.nus.edu.sg

system.base.css

system.menus.css

system.messages.css

system.theme.css

shadowbox.css

views_slideshow.css

date.css

datepicker.1.7.css

date_repeat_field.css

field.css

node.css

search.css

user.css

views.css

ctools.css

superfish.css

superfish-vertical.css

superfish-navbar.css

views_slideshow_cycle.css

html-reset.css

wireframes.css

layout-liquid.css

page-backgrounds.css

tabs.css

pages.css

blocks.css

navigation.css

views-styles.css

nodes.css

comments.css

forms.css

fields.css

animate.css

jquery.sidr.light.css

sshsph.css

mobile.css

print.css

jquery.js

jquery.once.js

drupal.js

shadowbox.js

shadowbox_auto.js