Cheap Seo Tools

Linkody

Linkody Lets you know you once you get (or lose) a backlink. Additionally, it gives info on your new backlinks (like Mozrank and anchor text). Cool Feature: Linkody mails you when a competitor receives a new backlink. That way you can swoop in and try to find the same one for yourself.

DIBZ

DIBZ Is a cool connection prospecting tool. Simply enter the sort of links that you want to build (for instance, resource page backlinks) and it'll get to work finding link opportunities.

Free Broken Link Checker

This Tool checks a site for broken links. Useful for broken link building.

Connect Research Tools

A Solid link analysis tool with some link building features built into it (like connection prospecting and outreach).
But LRT's cool feature is its "Link Detox" tool. This tool automatically scans your traffic and shows you that links put you in danger of a Google penalty (or links that already caused a penalty). To put it differently, it creates identifying spammy links super simple. When I ran an evaluation of Link Detox it was almost 100% accurate at differentiating between positive and negative links.

GroupHigh

GroupHigh Is advanced blogger outreach software. Despite The laundry list of features, it is pretty darn simple to use. Simply enter a few keywords and phrases to find sites on your industry. Then filter by Domain Authority and last post date to whittle the list to bloggers that are really worth reaching out to. You might even reach them out (and track your results) within the platform.

HARO (Assist a Reporter Out)

Want To get backlinks in The New York Times and The Wall Street Journal? It's possible to hire a costly PR firm...or you can use HARO. HARO is a "dating service" that connects journalists with sources. If you hook up a journalist with a great quotation or stat, they will reward you up with a mention or link. Requires a bit of grinding to obtain a single mention, but the links you get can be solid gold.