Early in the 2000s, reciprocal link building was a popular method to increase your search traffic and boost your backlink profile.
Also referred to as “traded” or “exchanged” links, reciprocal links were something of an SEO hack – even though they were technically against Google’s guidelines.
These days, Google still says “no” to reciprocal links (they call it a “link scheme”).
But the web today is still full of them.