How bad is a trailing slash?

[Tylerj]

I am working in Magento 2 which has all sorts of difficulties.

My product page is example.com/testproduct the canonical is the same.

But in the sitemap it is example.com/testproduct/

In a perfect world I would get rid of the trailing slash but can't because of this issue- https://magento.stackexchange.com/questions/205337/unique-constraint-violation-found-when-remove-suffix-html-magento-2-2-0

The trailing slash will 301 redirect properly.

Is it an issue having the sitemap urls different with the trailing slash?

[GastonRiera]

Hi Tyler,

This is a minor issue, but still an issue. You should be consistent in your sitemap file as on what you want google to index.

There will be no penalty or whatever in an SEO perspective. What can suffer is crawling in your site due to:
1- GoogleBot has a "limited" time/resources for each site, wasting time in redirections may cause that part of your site not being crawled
2- If many redirections are held, GoogleBot might leave instead of having more time/resources for that crawl. There has been said that GoogleBot gives up in the 5th hop (video with matt cuts explaining it)

Hope it helps.
Best luck
GR