3 sec in total
147 ms
2.6 sec
339 ms
Welcome to rad.nd.edu homepage info - get ready to check Rad Nd best content for United States right away, or after learning these important things about rad.nd.edu
Notre Dame Radiation Laboratory partners with the Department of Energy's Office of Science to study Radiation Chemistry.
Visit rad.nd.eduWe analyzed Rad.nd.edu page load time and found that the first response time was 147 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
rad.nd.edu performance score
name
value
score
weighting
Value2.2 s
77/100
10%
Value6.3 s
10/100
25%
Value4.7 s
69/100
10%
Value5,970 ms
0/100
30%
Value0.241
51/100
15%
Value10.6 s
23/100
10%
147 ms
45 ms
105 ms
773 ms
299 ms
Our browser made a total of 38 requests to load all elements on the main page. We found that 42% of them (16 requests) were addressed to the original Rad.nd.edu, 11% (4 requests) were made to Googletagmanager.com and 11% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Emergency.nd.edu.
Page size can be reduced by 26.8 kB (9%)
298.5 kB
271.7 kB
In fact, the total size of Rad.nd.edu main page is 298.5 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. 55% of websites need less resources to load. Images take 191.6 kB which makes up the majority of the site volume.
Potential reduce by 18.5 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 18.5 kB or 67% of the original size.
Potential reduce by 6.1 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. Rad Nd images are well optimized though.
Potential reduce by 743 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 1.5 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. Rad.nd.edu needs all CSS files to be minified and compressed as it can save up to 1.5 kB or 16% of the original size.
Number of requests can be reduced by 10 (32%)
31
21
The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rad Nd. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.
rad.nd.edu
147 ms
rad.nd.edu
45 ms
site.1600091423.css
105 ms
js
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jquery.min.js
299 ms
ndt.js
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site.1600091423.js
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css
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ndt-mobile.css
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analytics.js
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noise5.png
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dept-nd-white.png
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ndmark300.png
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doe_logo.png
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prashant_kamat.jpg
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lisouskaya_aliaksandra_2.jpg
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mc_2.19.20_rad_lab_21_3_.jpg
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dubose_jeff_pro_1_.jpg
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energy_crest_footer.png
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ndmark300.png
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dept-ores-white.png
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NaPDcZTIAOhVxoMyOr9n_E7ffHjDGItzZpabuWI.ttf
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NaPecZTIAOhVxoMyOr9n_E7fdMPmCKZRbrw.ttf
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NaPDcZTIAOhVxoMyOr9n_E7ffGjEGItzZpabuWI.ttf
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NaPDcZTIAOhVxoMyOr9n_E7ffAzHGItzZpabuWI.ttf
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nd.v2.woff
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feature5.jpg
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nr-1216.min.js
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rad.nd.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.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
rad.nd.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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
rad.nd.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
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 Rad.nd.edu 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 Rad.nd.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.
rad.nd.edu
Open Graph description is not detected on the main page of Rad Nd. 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: