1.2 sec in total
81 ms
899 ms
183 ms
Visit science.nrao.edu now to see the best up-to-date Science Nrao content for United States and also check out these interesting facts you probably never knew about science.nrao.edu
Visit science.nrao.eduWe analyzed Science.nrao.edu page load time and found that the first response time was 81 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.
science.nrao.edu performance score
name
value
score
weighting
Value4.4 s
16/100
10%
Value9.4 s
0/100
25%
Value8.0 s
22/100
10%
Value120 ms
97/100
30%
Value0.12
84/100
15%
Value12.0 s
16/100
10%
81 ms
573 ms
18 ms
40 ms
22 ms
Our browser made a total of 42 requests to load all elements on the main page. We found that 98% of them (41 requests) were addressed to the original Science.nrao.edu, 2% (1 request) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (573 ms) belongs to the original domain Science.nrao.edu.
Page size can be reduced by 416.3 kB (45%)
930.1 kB
513.8 kB
In fact, the total size of Science.nrao.edu main page is 930.1 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. 45% of websites need less resources to load. Javascripts take 456.2 kB which makes up the majority of the site volume.
Potential reduce by 33.2 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. This page needs HTML code to be minified as it can gain 7.7 kB, which is 18% 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 33.2 kB or 79% of the original size.
Potential reduce by 68.5 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. Obviously, Science Nrao needs image optimization as it can save up to 68.5 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 314.6 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 314.6 kB or 69% of the original size.
Number of requests can be reduced by 12 (30%)
40
28
The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Science Nrao. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
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science.nrao.edu accessibility score
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
<input type="image"> elements do not have [alt] text
Links do not have a discernible name
science.nrao.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
Missing source maps for large first-party JavaScript
science.nrao.edu SEO score
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Science.nrao.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 Science.nrao.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.
{{og_description}}
science.nrao.edu
Open Graph description is not detected on the main page of Science Nrao. 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: