998 ms in total
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The Heliophysics Data Portal makes data easily available from all missions relevant to the global problem of the effects of solar particles and fields on the Earth and the solar system.Visit vspo.gsfc.nasa.gov
We analyzed Vspo.gsfc.nasa.gov page load time and found that the first response time was 183 ms and then it took 815 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.
vspo.gsfc.nasa.gov performance score
Our browser made a total of 35 requests to load all elements on the main page. We found that 6% of them (2 requests) were addressed to the original Vspo.gsfc.nasa.gov, 89% (31 requests) were made to Heliophysicsdata.gsfc.nasa.gov and 3% (1 request) were made to Dap.digitalgov.gov. The less responsive or slowest element that took the longest time to load (190 ms) relates to the external source Heliophysicsdata.gsfc.nasa.gov.
Page size can be reduced by 108.4 kB (39%)
In fact, the total size of Vspo.gsfc.nasa.gov main page is 275.8 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. 20% of websites need less resources to load. Images take 186.5 kB which makes up the majority of the site volume.
Potential reduce by 43.8 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 10.7 kB, which is 21% 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 43.8 kB or 86% of the original size.
Potential reduce by 54.8 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, Vspo Gsfc Nasa needs image optimization as it can save up to 54.8 kB or 29% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 3.8 kB
Potential reduce by 6.0 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. Vspo.gsfc.nasa.gov needs all CSS files to be minified and compressed as it can save up to 6.0 kB or 77% of the original size.
Number of requests can be reduced by 8 (28%)
vspo.gsfc.nasa.gov accessibility score
These are opportunities to improve the legibility of your content.
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.
<html> element does not have a [lang] attribute
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.
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
vspo.gsfc.nasa.gov best practices score
Trust and Safety
Does not use HTTPS
Ensure CSP is effective against XSS attacks
Serves images with low resolution
Browser errors were logged to the console
Page has valid source maps
vspo.gsfc.nasa.gov SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Image elements do not have [alt] attributes
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vspo.gsfc.nasa.gov 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 Vspo.gsfc.nasa.gov 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 description is not detected on the main page of Vspo Gsfc Nasa. 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: