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A redirect sends visitors from an old address to a new one. The 404 log shows the addresses people tried that don't exist, so you can point them somewhere useful.
When you rename or move a published page and its address changes, Cairn adds a permanent redirect from the old address to the new one when you publish. Links people have saved, and search results, keep working.
If the old address had redirects pointing at it, they are updated to point straight at the new address, so visitors never bounce through several steps.
Redirects are a module. If you don't see Redirects and 404 Log under System in the sidebar, it is switched off for your site, renamed pages are not forwarded, and old addresses simply stop working. Ask whoever set up your site to turn it on.
A redirect wins over a page at the same address. If you redirect an address that still has a live page, visitors can no longer reach that page.
Adding a redirect.
The Redirects screen lists every rule with how many Hits it has had and when it was Last hit. Search with Search from, to or notes…, and sort by Recently hit, Most hits, From A–Z or Newest.
A redirect can't point to itself, and it can't point to an address that is itself redirected: point it at the final page instead. Cairn tells you if you try.
Deleting a redirect can't be undone. Visitors to that old address get a "not found" page again, and it starts appearing in the 404 log.
Open 404 Log in the sidebar, or → 404 log on the Redirects screen. Every address someone asked for that doesn't exist is listed once, with how many Hits it has had and when it was Last seen.
The Source & suggestion column says where the visitor came from, and suggests whether to redirect, delete or investigate:
Search with Search the path…, show one source with All sources, and sort by Recent, Most hits, Path A–Z or Source.
The 404 log.
Old rows are tidied away by themselves each day. How long they are kept is set on the Redirects tab of Settings.
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