Also Link Centaur allows for drip feeding of your URLs ,, definitely use Link Centaur is better since it also comes with a free account with a pretty generous link limit (50 / day).
Link Centaur offers an online automated backlinks indexer service using and utilizing new techniques to help get your links indexed faster.
One of the great options with Link Centaur is the ability to integrate the backlink indexing service with popular 3rd party SEO software and tools, such as; GSA Search Engine Ranker, Magic Submitter, Ultimate Demon, Article Kevo, and much more,
Link Centaur provides 3 pricing packages that should suit everyone’s budget – and with the FREE backlink indexer plan you can submit up to 50 links per day.
If you are looking for an affordable premium backlink indexing service that is safe and fully automated Link Centaur is a great option.
Link Centaur Features Include:
Upload 50 to 60,000 Links per Day.
Add unlimited campaigns.
Pay as you go.
Nothing to download or install.
Easy to use.
Drip feed the links.
High links indexing rate.
See exactly when the links are crawled.
See percentages and statistics.
Schedule/drip feed links:
Drip X links per day.
Drip over X days.
GSA Search Engine Ranker.
No Hands SEO.
Download and export reports.
Submit your links and forget.
Unrestricted API access.
You can cancel anytime.