<p dir="auto">Example:</p>
<p dir="auto"><a href="https://deno.com/blog/" rel="nofollow">https://deno.com/blog/</a></p>
<p dir="auto">Vs.</p>
<p dir="auto"><a href="https://deno.com/blog" rel="nofollow">https://deno.com/blog</a></p>
<p dir="auto">This seems to happen for any deep links that I tried. I noticed this because a newsletter had linked to the blog and the URL was broken.</p>
<p dir="auto">The top result for "deno mdn" on Google is the deno blog:</p>
<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://user-images.githubusercontent.com/1167575/141516650-4e6db4e8-7567-48fd-a917-ae4adcf7dd75.png"><img src="https://user-images.githubusercontent.com/1167575/141516650-4e6db4e8-7567-48fd-a917-ae4adcf7dd75.png" alt="image" style="max-width: 100%;"></a></p>
<p dir="auto">But it gives a 404 due to the trailing slash in the URL. I'm guessing there was a recent update to the website which broke this, and Google will re-index the non-trailing-slash URLs eventually, but it seems like a good idea to allow trailing slashes on URLs or redirect them to non-trailing-slash URL instead of throwing a 404.</p>
<p dir="auto">Note that <a href="https://deno.com/blog/" rel="nofollow">https://deno.com/blog/</a> has the same problem (i.e. it's not just the individual blog posts).</p>