You have no control over external sites linking to your old http:// URLs, or visitors' personal bookmarks — but you don't need to. A correctly configured 301 redirect handles this automatically and permanently, sending anyone who arrives via an old link straight to the equivalent https:// page.
What you actually control
- Your own site's internal links and hardcoded references — these should be updated to https:// directly rather than relying on the redirect, since every redirect hop adds a small amount of latency.
- Any links you manage externally — email footers, social media profiles, printed materials with URLs — worth updating proactively even though the redirect will still work.
As long as the server-level redirect stays in place indefinitely (not just during a transition period), old bookmarks and backlinks will keep working correctly — there's no expiry on how long a 301 redirect needs to be honored.
Why a permanent redirect is the only maintenance this actually requires
As long as the server-level 301 redirect remains permanently in place, old bookmarks and backlinks continue working indefinitely with no expiration or ongoing maintenance required — there's no scenario where you need to revisit or refresh this redirect once it's correctly configured.
What you should still proactively update even though the redirect handles it
While the redirect handles visitor-facing continuity, updating your own internal links, email signatures, and marketing materials to reference https:// directly avoids the small added latency of an unnecessary redirect hop for links entirely within your own control.
What analytics can tell you about how much old-link traffic you're actually seeing
Checking your analytics for traffic still arriving via http:// referral sources gives a concrete sense of how much old-bookmark and backlink traffic your redirect is actually serving — useful context for understanding just how much ongoing value that permanent redirect continues providing well after the initial migration.
What happens specifically with links shared on social media platforms
Links previously shared on social media platforms, even years-old posts, continue working correctly through your permanent redirect exactly the same way any other old bookmark or backlink does — there's no special handling needed for social platforms specifically, the same redirect mechanism covers them.
How search engines eventually update their own cached links over time
Search engines gradually update their own indexed links to reflect the https:// version as they recrawl your site following the migration, a process that happens automatically over the weeks following migration without requiring any action from you beyond ensuring the redirect itself remains correctly in place.
Why print materials with URLs deserve a mention even though they can't be updated retroactively
Printed materials, business cards, brochures, physical signage, referencing an old http:// URL will continue working correctly via the redirect indefinitely, but it's worth using https:// directly in any newly printed materials going forward, both for a marginally faster connection and general best practice.
A closing reassurance for anyone worried about this specific concern
Of everything to worry about during a migration, old bookmarked and backlinked http:// URLs are genuinely one of the lowest-risk items on the list, since a correctly configured permanent redirect handles this automatically and indefinitely with no further action required.
What a redirect map is and whether a small site actually needs one
A redirect map is a documented list of old URLs and their corresponding new destinations, essential for a large site with many distinct URL patterns but generally unnecessary for a small site where a single, simple site-wide redirect rule already covers every page correctly.
How long you should expect to keep the redirect in place, practically speaking
A permanent redirect should, as the name suggests, remain in place indefinitely with no planned removal date — old bookmarks, backlinks, and cached search results can reference the old URL for years, and removing the redirect prematurely would break that continued access.