Is it safe to add a Backlink on all pages on another website?

[hakhan201]

I got a few old websites and I would like to add a do-follow backlink on all pages linking to a new website. Is this SEO safe to do so?

[MattRoney]

It depends. If you're adding a link to all pages, I'd imagine they all won't be especially relevant. Plus, you get severely diminishing returns for each additional backlink from one domain to another.

What are your goals for doing this?

[hakhan201]

To rank better on Google and increase domain authority. Can I be penalized by Google for doing this?

Thank you

[GastonRiera]

Hi.

I strongly recommend you to DO NOT DO THAT. It's Really difficult to measure the impact of adding a link on every page of a site. (It's also called sitewide).

As Matt said, you will get almost nothing of the link juice when adding a multiple page link.

I suggest you to take a read of this tutorial from MOZ.

LINKBUILDING guide

Hope it helps.

GR.