You can scroll to the bottom of this article to see an update for 2019 which looks at other indexing alternatives which may be worth testing.
Backlink Booster Comparison (NEW)
"We do have an absolute clear winner in Backlinks Indexer whom have a massive margin over any other service..."
"We can only assume that whatever linking they created has been given more authority after the last update, it’s a massive jump and shows that whatever they are doing is clearly different to the other services..."
Indexing Conclusion
This update looks at a new post in 2019:
We recently found a new article which set out to see if there were, indeed, any viable alternatives to BacklinksIndexer. The link which was just referenced here will show you a comparison of 5 of the top indexing services and provides you with some pros and cons as to what the best choice currently is. Spoiler alert...I think you know 🙂