4.1 sec in total
652 ms
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Click here to check amazing Chem Unl content for United States. Otherwise, check out these important facts you probably never knew about chem.unl.edu
Visit chem.unl.eduWe analyzed Chem.unl.edu page load time and found that the first response time was 652 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
chem.unl.edu performance score
name
value
score
weighting
Value2.5 s
66/100
10%
Value20.0 s
0/100
25%
Value7.5 s
27/100
10%
Value1,350 ms
17/100
30%
Value0.474
18/100
15%
Value21.9 s
1/100
10%
652 ms
108 ms
296 ms
357 ms
81 ms
Our browser made a total of 84 requests to load all elements on the main page. We found that 57% of them (48 requests) were addressed to the original Chem.unl.edu, 13% (11 requests) were made to Unlcms.unl.edu and 8% (7 requests) were made to . The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Alert.unl.edu.
Page size can be reduced by 746.3 kB (15%)
4.8 MB
4.1 MB
In fact, the total size of Chem.unl.edu main page is 4.8 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.8 MB which makes up the majority of the site volume.
Potential reduce by 60.9 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 60.9 kB or 80% of the original size.
Potential reduce by 177.6 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. Chem Unl images are well optimized though.
Potential reduce by 253.3 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 253.3 kB or 59% of the original size.
Potential reduce by 254.6 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. Chem.unl.edu needs all CSS files to be minified and compressed as it can save up to 254.6 kB or 50% of the original size.
Number of requests can be reduced by 28 (38%)
73
45
The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chem Unl. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.
chem.unl.edu
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chem.unl.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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
chem.unl.edu 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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
chem.unl.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
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 Chem.unl.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 Chem.unl.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.
chem.unl.edu
Open Graph description is not detected on the main page of Chem Unl. 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: