What it is
If /page and /page/ both resolve to 200, I have two URLs for one page. I pick one form and redirect the other so the site speaks with one voice. /page and /page/ both resolve. Duplicate URLs split signals. Pick one form; redirect the other; canonicalise.
Why does trailing-slash inconsistency matter for AI search?
Duplicate URLs split signals.
How do you fix it?
Pick one form; redirect the other; canonicalise.
How do you find it on your site?
- Test a sample of URLs with and without the trailing slash.
- Check whether both return 200 instead of one redirecting.
- Choose a single convention, with or without the slash, and enforce it.
- Redirect the non-preferred form and make canonicals match.
Which ranking and citation factors does it touch?
Trailing-slash duplicates split signals across identical pages. Consistency consolidates them onto one URL.
What is the impact?
Low-medium. Inferred.
What is the evidence?
Resolve slash variants to avoid duplicates. Google Search Central, Keep a simple URL structure; Google Search Central, Consolidate duplicate URLs (canonicalization)
Sources
Frequently asked questions about trailing-slash inconsistency
What does "Trailing-slash inconsistency" mean?
/page and /page/ both resolve.
How do you fix trailing-slash inconsistency?
Pick one form; redirect the other; canonicalise.