3.4 sec in total
108 ms
2.5 sec
845 ms
Visit sciences.gsfc.nasa.gov now to see the best up-to-date Sciences Gsfc Nasa content for United States and also check out these interesting facts you probably never knew about sciences.gsfc.nasa.gov
The Sciences and Exploration Directorate is the largest Earth and space science research organization in the world. Its scientists advance understanding of the Earth and its life-sustaining environmen...
Visit sciences.gsfc.nasa.govWe analyzed Sciences.gsfc.nasa.gov page load time and found that the first response time was 108 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
sciences.gsfc.nasa.gov performance score
name
value
score
weighting
Value7.4 s
1/100
10%
Value14.2 s
0/100
25%
Value7.8 s
23/100
10%
Value110 ms
98/100
30%
Value0.097
90/100
15%
Value18.0 s
3/100
10%
108 ms
1038 ms
115 ms
128 ms
107 ms
Our browser made a total of 57 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Sciences.gsfc.nasa.gov, 93% (53 requests) were made to Science.gsfc.nasa.gov and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source Science.gsfc.nasa.gov.
Page size can be reduced by 450.2 kB (43%)
1.0 MB
599.7 kB
In fact, the total size of Sciences.gsfc.nasa.gov main page is 1.0 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. 55% of websites need less resources to load. Images take 509.2 kB which makes up the majority of the site volume.
Potential reduce by 40.9 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. This page needs HTML code to be minified as it can gain 7.5 kB, which is 15% 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 40.9 kB or 82% of the original size.
Potential reduce by 45.4 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. Sciences Gsfc Nasa images are well optimized though.
Potential reduce by 158.9 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 158.9 kB or 64% of the original size.
Potential reduce by 205.0 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. Sciences.gsfc.nasa.gov needs all CSS files to be minified and compressed as it can save up to 205.0 kB or 84% of the original size.
Number of requests can be reduced by 34 (62%)
55
21
The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sciences Gsfc Nasa. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.
sciences.gsfc.nasa.gov
108 ms
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bootstrap.css
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sciences.gsfc.nasa.gov accessibility score
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
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
Image elements do not have [alt] attributes
Form elements do not have associated labels
sciences.gsfc.nasa.gov 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
Browser errors were logged to the console
Page has valid source maps
sciences.gsfc.nasa.gov SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sciences.gsfc.nasa.gov 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 Sciences.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.
sciences.gsfc.nasa.gov
Open Graph description is not detected on the main page of Sciences 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: