Google Gary Illyes sent Twitter that you should keep the redirect live for a year for Google search purposes. The signals from the original page A to the destination page B all move and remain on page B even after the redirection is removed, if the redirection is valid for one year.

We’ve heard Google’s advice before holding it steers up for a year is good practice. But this is the first time a Google employee says this is a “concrete response,” and even more so that even if the redirect is removed, the signals do not return to the origin page but remain on the landing page.

Here is Gary’s original tweet:

He then went back and forth on Twitter with dozens of questions and gave an explanation that said, “If a signal has already been sent to B, it will stay there ~ whatever.”

I like how Patrick Stox summed this up:

Google updated it site migration instructions in section six, read “Keep redirects for as long as possible, usually at least one year. This period allows Google to pass all signals to new URLs, including indexing and redirecting links from other sites that point to your old URLs. From a users perspective, consider redirects. However, redirects are slow for users, so try updating your own links and all the big links from other sites to point to the new URLs. “

Here are some back and forth as SEOs began to understand if the signals would stick after removing the redirect. And for the sake of clarity, they do, but once the redirect is removed, signals pointing to new pages A are not passed to the deleted redirection target page B. I hope it makes sense …

And technically it may be less than a year, but a year is safe:

And the clock starts darting when Google notices a redirect:

Google’s pretty neat transparency here!

Forum discussion Twitter.

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