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Washington University in St. Louis is fully committed to being a national leader in sustainability, a core priority that runs through all aspects of our...Visit sustainability.wustl.edu
We analyzed Sustainability.wustl.edu page load time and found that the first response time was 799 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.
sustainability.wustl.edu performance score
Our browser made a total of 72 requests to load all elements on the main page. We found that 88% of them (63 requests) were addressed to the original Sustainability.wustl.edu, 8% (6 requests) were made to Fonts.gstatic.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (799 ms) belongs to the original domain Sustainability.wustl.edu.
Page size can be reduced by 596.3 kB (18%)
In fact, the total size of Sustainability.wustl.edu main page is 3.3 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 2.6 MB which makes up the majority of the site volume.
Potential reduce by 27.4 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 27.4 kB or 77% of the original size.
Potential reduce by 36.2 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. Sustainability Wu St L images are well optimized though.
Potential reduce by 333.6 kB
Potential reduce by 199.1 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. Sustainability.wustl.edu needs all CSS files to be minified and compressed as it can save up to 199.1 kB or 85% of the original size.
Number of requests can be reduced by 31 (48%)
sustainability.wustl.edu accessibility score
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.
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
These are opportunities to improve keyboard navigation in your application.
Heading elements are not in a sequentially-descending order
sustainability.wustl.edu best practices score
Trust and Safety
Does not use HTTPS
Ensure CSP is effective against XSS attacks
sustainability.wustl.edu SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Links do not have descriptive text
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/).
Document uses legible font sizes
Tap targets are not sized appropriately
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sustainability.wustl.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 Sustainability.wustl.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.
Open Graph data is detected on the main page of Sustainability Wu St L. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: