Do I have to switch domain registrar to the same hosting company?

Selected answers from the Dumb SEO Questions Facebook & G+ community.

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  Jeremy L. Knauff: No SEO reason to move registrars. I concur with the others who said to keep them separate, and for the same reasons.
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  Nick Wilsdon: No, there is no SEO reason for that. I agree with Steve - it`s often sensible to keep your domain registrations separate from your hosting services. Reasons for me are: (1) you often get better deals that way, especially using a dedicated domain registrar (2) hosting companies are not always good registrars - in fact they are usually resellers rather than registrars. They may not have good alert systems in place to prevent you loosing your domain. May not know how to recover a domain for you or defend your domain against other parties. (3) You can then easily change hosting w/out extra cost - often happens when your favourite hosting company gets taken over by a larger player, leading to service drops, or they just slow down in general. (4) You can afford for your hosting company to go bust - but not your registrar. Loosing your domain is fatal, it is often expensive is not impossible to get back a good domain (even a bad one will get picked up and offered back to you for $3k+) I`d argue that it`s also sensible to keep your DNS separate from your hosting company, for similar reasons. Nothing worse that hosting companies providing NS that go down with the rest of their network (or your box). You then have a very long wait to get back up and operational. Having DNS somewhere like Dyn, allows you to transfer hosting and get back online within minutes.
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  Jody Nesbitt: zero, go with something like Cloudflare for your DNS, keep your domain wherever you are happy and comfortable, if you have a few domains, put them in the same control panel purely from a ease of use/access, sidenote, dont put your email on your hosting account either
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  Steve Gerencser: No. In fact, I refuse to keep those two things together.