Getting SEO Information from Google`s Cache - The importance of Google's cache
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Some websites do not like their content to be cached by Google and other search engines. They use the following code:
<meta name="robots" content="noarchive">
So when users from search engines type certain keywords in which your site is ranking very well, they will click on that result, hoping to read and understand your content/services. However, there are certain unavoidable scenarios when the server is down or your page loads up too slowly in that specific frame of time. The most common user reaction is for them to press the browser back button and look for the cache link in your website in Google search results.
If you use the meta tag shown above, Google does not show the cached link to your website. The result is a poor user experience because potential readers or customers fail to read and understand your services. Had they been able to do so, they could have become repeating or loyal customers in the future.
This is why the Google cache link is always helpful as a backup in case the live version of your web page fails to load properly. In this case, users can take note of your website and may come back the next time it is live to make a product purchase, an inquiry or avail themselves of your services.
Recommendations:
1. If you do not want your web page to be cached by Google because it presents some confidential information, try to think twice before publishing your content online. If it poses some risk or there is no need for users to read that content or to be indexed by Google, you can block the URLs in robots.txt or put in a meta no index tag. This is the safer approach. You can even remove the URLs using the Google URL removal tool, provided it has been blocked, 404ed or placed with a Meta no index tag.
2. To contribute to the user's experience, it is always recommended to have the most important pages in your website (especially those that you need to rank or are currently ranking in Google) cacheable by Google.
3. Content is very important in SEO. Cached pages provide an alternative with which users can interact. They can read your content, even if your server or website is down. In this case, they take note of the URL and could come back to your site in the future, perhaps even link to it -- thus helping the SEO aspects of your website.
Google Optimization 
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