3.2 sec in total
733 ms
2.4 sec
106 ms
Welcome to oftc.usyd.edu.au homepage info - get ready to check Oftc Usyd best content for Australia right away, or after learning these important things about oftc.usyd.edu.au
The Institute of Photonics and Optical Science draws in researchers and teaching expertise from all areas of optics and photonics. Learn more about our network.
Visit oftc.usyd.edu.auWe analyzed Oftc.usyd.edu.au page load time and found that the first response time was 733 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster. This domain responded with an error, which can significantly jeopardize Oftc.usyd.edu.au rating and web reputation
oftc.usyd.edu.au performance score
name
value
score
weighting
Value8.5 s
0/100
10%
Value14.8 s
0/100
25%
Value70.0 s
0/100
10%
Value107,440 ms
0/100
30%
Value0
100/100
15%
Value136.5 s
0/100
10%
733 ms
471 ms
460 ms
1424 ms
462 ms
Our browser made a total of 12 requests to load all elements on the main page. We found that 75% of them (9 requests) were addressed to the original Oftc.usyd.edu.au, 17% (2 requests) were made to Stats.usyd.edu.au and 8% (1 request) were made to Usyd.edu.au. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Stats.usyd.edu.au.
Page size can be reduced by 59.1 kB (66%)
89.5 kB
30.4 kB
In fact, the total size of Oftc.usyd.edu.au main page is 89.5 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. CSS take 46.0 kB which makes up the majority of the site volume.
Potential reduce by 4.3 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 1.4 kB, which is 23% 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 4.3 kB or 71% of the original size.
Potential reduce by 16 B
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. Oftc Usyd images are well optimized though.
Potential reduce by 18.5 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 18.5 kB or 75% of the original size.
Potential reduce by 36.3 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. Oftc.usyd.edu.au needs all CSS files to be minified and compressed as it can save up to 36.3 kB or 79% of the original size.
Number of requests can be reduced by 3 (38%)
8
5
The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Oftc Usyd. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.
oftc.usyd.edu.au
733 ms
screen.css
471 ms
screen-local.css
460 ms
__utm.js
1424 ms
mootools.js
462 ms
common.js
472 ms
feature_quad.jpg
953 ms
banners-local.css
233 ms
banners.css
463 ms
university_sydney_logo.gif
235 ms
print.css
237 ms
__utm.gif
237 ms
oftc.usyd.edu.au 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
[aria-*] attributes do not match their roles
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.
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
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Some elements have a [tabindex] value greater than 0
oftc.usyd.edu.au 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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
oftc.usyd.edu.au SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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 Oftc.usyd.edu.au 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 Oftc.usyd.edu.au 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.
oftc.usyd.edu.au
Open Graph description is not detected on the main page of Oftc Usyd. 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: