'SEO submission sites' is a term that gets used as if it describes one thing. It doesn't, it's an umbrella covering several genuinely different platform types, each with a different function.
Worth breaking this down the way you'd break down a dependency list: by what each one actually does, not just by the category label.
Lumping them together is the equivalent of treating every package in a lockfile as interchangeable just because they're all technically 'dependencies.'
The Categories, By Function
● Directory sites: structured listings, closer to a registry entry than content
● Article sites: full content publishing, functionally similar to a syndication target
● Social bookmarking: distribution/visibility layer, weak direct ranking signal, useful for referral traffic
● Business listing sites: structured data specifically for local NAP, closer to a data feed than a backlink source
Why a Lot of This Category Is Legacy Cruft
Submission sites were heavily abused for manipulative link building in the 2010s, mass submission, spun content, directories that existed purely to sell placements.
Google's algorithm updates since then specifically targeted this pattern, and a lot of what's left in this space is effectively deprecated: still technically live, but carrying little to no real authority.
Treating every submission site as equally valid is like still importing a library nobody's maintained in eight years just because the install command still works.
A Quick Validity Check Before Using Any Site in This Category
● Check if the site itself is actually indexed and ranking for anything, if it isn't, your listing inherits that same invisibility
● Check for real, recent activity, user accounts, comments, recent submissions, not just an old template still technically online
● Check whether content requirements exist at all, or whether it accepts anything submitted (a strong signal of low quality)
A Reasonable Allocation
Rather than treating this as a checklist to exhaust, treat it as a small, curated dependency set: a couple of solid directories, one or two article platforms, a business listing if relevant, and a bookmarking site or two.
Quality and relevance over raw count, the same principle that applies to picking actual software dependencies.
Full categorized list with notes on which platforms are actually worth using: free SEO submission sites for 2026.
Originally published on SEO Inbounds.
