A redirect is a change-of-address card
When a page moves from one address to another, a redirect automatically forwards visitors — and Google — to the new location. Without it, anyone following an old link meets a 'page not found'. With it, the move is invisible. That's the whole idea; the details are where the value sits.
What Google has invested in your old addresses
Every ranking your pages have earned lives at their current addresses. Every link another site ever gave you points there too. Delete or rename a page without a redirect and that accumulated trust vanishes overnight — it's the single most common way businesses wreck their Google visibility during a rebuild.
Want a professional pair of eyes on your own site? Request a free website review — plain-English findings, no obligation.
301 means 'moved permanently' — and it's the one you want
A 301 redirect tells Google the move is permanent and to transfer the old page's standing to the new address. Other codes (302, meta refreshes, chains of hops) leak or delay that transfer. This is technical, but you don't need to do it — you need to make sure someone does.
The question to ask before any redesign launches
Ask your developer one question: 'Show me the redirect map from every old page to its new home.' A professional has it ready. If the answer is a blank look, stop the launch — this is non-negotiable in our website redesign process for exactly this reason.
After launch: check, then check again
Search Console will report 'not found' errors as Google recrawls old addresses. Some stragglers are normal; a flood means the map missed pages. Test your ten most-visited old addresses by hand. An hour of checking protects years of earned visibility.
Want this handled for you?
Get a free, plain-English review of your website — what's working, what isn't, and what's worth fixing first.
Get a Free Website Review