I love getting into the nitty-gritty of site structure, and this is one of those little things that can quietly confuse things. I've seen plenty of sites where both /blog and /blog/ work, and others that automatically redirect one to the other. So which is better for SEO?
From what I've gathered (and tested across a few client sites), consistency wins every time. Having both versions live is essentially running two separate URLs for the same content - which means you're splitting any backlinks, social shares, and indexing signals between them. Think of it like having two front doors to your house: visitors might enter through either, but the search engines can't decide which one to recommend.
The fix is straightforward: pick one - trailing slash or no trailing slash - and stick with it. Then set up a 301 redirect from the other version. Which one you choose doesn't matter to Google, as long as you're consistent across your internal links, canonical tags, sitemap, and redirect rules. A colleague once described it as "choosing your favourite spelling of colour - it's the uniformity that counts."
If your server tech knows what they're doing, this is a five-minute fix. Worth checking your own setup to avoid splitting your signals.
