Home Page Being Indexed / Referral URLs /

[DigMS]

I have a few questions related to home page URLs being indexed, canonicalization, and GA reporting...

1. I can view the home page by typing in domain.com , domain.com/ and domain.com/index.htm There are no redirects and it's canonicalized to point to domain.com/index.htm  -- how important is it to have redirects? I don't want unnecessary redirects or canonical tags, but I noticed the trailing slash can sometimes be typed in manually on other pages, sometimes not.

2. When I do a site search (site:domain.com), sometimes the HP shows up as "domain.com/", never "domain.com/index.htm" or "domain.com", and sometimes the HP doesn't show up period. This seems to change several times a day, sometimes within 15 minutes. I have no idea what is causing it and I don't know if it has anything to do with #1. In a perfect world, I would ask for the /index.htm to be dropped and redirected to .com/, and the canonical to point to .com/

3. I've noticed in GA I see / , /index.htm, and a weird Google referral URL  (/index.htm?referrer=https://www.google.com/) all showing up as top pages. I think the / and /index.htm is because I haven't setup a default URL in GA, but I'm not sure what would cause the referrer. I tracked back when the referrer URL started to show up in the top pages, and it was right around the time they moved over to https://, so I'm not sure what the best option is to remove that.

I know this is a lot - I appreciate any insight anyone can provide.

[Andrew-SEO]

You're homepage dissapearing is of concern.

What version domain name is connected to your IP with your domain name provider?

Have you set up search console with your preferred domain?