Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

marsrover.nasa.gov

Mars Exploration Rover Mission: Home

Page Load Speed

1.9 sec in total

First Response

593 ms

Resources Loaded

1.2 sec

Page Rendered

110 ms

marsrover.nasa.gov screenshot

About Website

Click here to check amazing Mars Rover Nasa content for United States. Otherwise, check out these important facts you probably never knew about marsrover.nasa.gov

Mars Rovers Home Page

Visit marsrover.nasa.gov

Key Findings

We analyzed Marsrover.nasa.gov page load time and found that the first response time was 593 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

marsrover.nasa.gov performance score

0

Network Requests Diagram

marsrover.nasa.gov

593 ms

599 ms

ga.js

8 ms

spacer.gif

41 ms

__utm.gif

14 ms

Our browser made a total of 5 requests to load all elements on the main page. We found that 20% of them (1 request) were addressed to the original Marsrover.nasa.gov, 40% (2 requests) were made to Google-analytics.com and 40% (2 requests) were made to Mars.nasa.gov. The less responsive or slowest element that took the longest time to load (599 ms) relates to the external source Mars.nasa.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 827 B (4%)

Content Size

18.7 kB

After Optimization

17.8 kB

In fact, the total size of Marsrover.nasa.gov main page is 18.7 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. Only 5% of websites need less resources to load. Javascripts take 17.2 kB which makes up the majority of the site volume.

HTML Optimization

-53%

Potential reduce by 793 B

  • Original 1.5 kB
  • After minification 1.4 kB
  • After compression 707 B

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 793 B or 53% of the original size.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 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. This website has mostly compressed JavaScripts.

Requests Breakdown

We found no issues to fix!

Requests Now

3

After Optimization

3

The browser has sent 3 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mars Rover Nasa. According to our analytics all requests are already optimized.

SEO Factors

marsrover.nasa.gov SEO score

0

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Marsrover.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 Marsrover.nasa.gov main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Mars Rover 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: