How to redirect users from my previous support website to Guide without affecting SEO ?
Moving content from an external help site to Zendesk Guide can be done without affecting the search engine optimization.
When moving the content from the previous help site to Guide, all the URL redirect directives should be amended against the hosting platform that is currently utilised for the website.
This ensures that any of the old links - that might be bookmarked, or linked in external websites are properly redirected to the new ones.
The redirect directive(s) would need to be amended on your current hosting side. Depending on the server type used for your previous help website, you could amend the .htaccess file and set a 301 redirect directives rule to the new Guide website.
You could either apply rules at a URL individual level or for any requests to be redirected to the new pages. However, please note that if you wanted to apply redirect rules at an individual level, you would need to create the articles first against the Zendesk Help Center.
You can also follow the check points from this guide, that explain all the steps needed to be taken when moving to a new website.
Once the redirect process has been implemented, we recommend you to use the Google Webmaster's tool "Fetch as Google" feature to help the new pages get crawled and indexed faster:
This ensures that the new pages will be prompted in Google's SERPs faster.
You can find out more on Search Engine Optimization and the Help Center in this article.