In my tool to track Backlinks, I noticed that our website example1.be has more than 12k backlinks, but only 85 unique domains referring to it.
The explanation is fairly simple. We provide a country switch to send users to their preferred country. The switch contains 6 other countries, like this:
- example1.nl (NL_NL)
- example2.fr (FR_FR)
- example2.be (FR_BE)
- example2.lu (FR_LU)
- example3.de (DE_DE)
- example3.at (DE_AT)
Now I start seeing that every page on those respective websites generates a backlink to example1.be.
This does not result in a manual penalty by Google, but I'm sure doesn't look natural (although it actually is).
Any suggestions on the matter? Leave it like this? rel="nofollow"? Completely different approach?