How to notify users for 10 days that the site is down and not kill SEO?

Question

Google

Actually I want to display a page with one picture, on which there will be information.
I will show for 10 days, how to do it so as not to kill positions in Google?
Do a temporary redirect or just do an internal rewrite with the mod_rewrite module?

Answer 1

Issue code 503 and any page. You can add a Retry-After header.
habrahabr.ru/post/136433/

Answer 2

If it is possible to give a working version on another domain for 10 days, give a page 302 redirect from the main domain to a temporary one. Only in this case, nothing will definitely be lost.
http://groups.google.com/a/googleproductforums.com/forum/#!topic/webmasters/-VSeLj9HlQE

When a URL responds with a 302 redirect, Google typically indexes the content of the destination URL but retains the original URL in the index as the source reference. That is, if pageA responds with a 302 redirect to pageB, the URL for pageA will appear in the search results, but it will reflect the content of pageB. The principal involved is because 302 means "Moved Temporarily", the destination URL is not included in the index, only the original.

Answer 3

Well, you can take a chance and give the Google bot a real site, and garbage to everyone else.
This is a risk, but if successful, positions will not fall.

Answer 4

Take a snapshot of the site with a teleport and give it to everyone with pure html, and at the same time carry out your work on another domain + make stubs for php scripts such as search and login - put the picture you want.