Hi

With Umbraco 7 and SEO Checker 1.8 one can end up with a endless redirect loop. Steps to reproduce:

1. Create a unique page on en.domain.com: /sctest1
2. Try to request the page on another site: se.domain.com/sctest1
3. Crate a page with the same name on the .se site: se.domain.com/sctest1
4. Rename the .en site: /sctest1 -> /sctest2
5. Try to request the .en site's old URL /sctest1 -> 301 /sctest1/ -> 301 /sctest2/
6. Unpublish the .en site node (now /sctest2)
7. Try to request the .en sites old url: en..domain.com/sctest1 = reresults in a endless redirect loop (/sctest1 -> 301 /sctest1/# -> 301 /sctest1/# etc) note the addition of a # in the URL

Note: If only the steps 1, 4, 5, 6 and 7 is performed (only create, rename and unpublsh on one site), the endless redirect loop doesn't happen.

I hope the above is sufficient to reproduce the behaviour, otherwise let me know and we can perhaps do a video or a sample Umbraco installation.

Best regards Emil