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)
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 🙂
BacklinksIndexer.com is rated 5 out of 5 by having more than 12155 happy customers.