"How to get backlinks for free" is one of the most-searched SEO phrases, and unfortunately also one of the most spam-answered — a lot of the "free backlinks" advice out there involves link farms, comment spam, or paid link networks disguised as free. Here's what's actually legitimate.
Why backlinks matter (and why the spam version backfires)
Search engines treat a link from another site as a vote of confidence — but they've also gotten very good at detecting unnatural link patterns (identical anchor text, links from clearly unrelated or low-quality sites, sudden spikes in link volume). Google's algorithm updates have specifically targeted manipulative link schemes, and sites caught can be penalized rather than helped.
Genuinely free, legitimate methods
Being listed in relevant, real directories for your industry or local area (not mass link-directory submissions) is still valid. Guest posting on sites your actual audience reads — where you're contributing something genuinely useful, not just dropping a link — remains effective. Digital PR — creating something genuinely link-worthy (original data, a useful free tool, a well-researched guide) and reaching out to relevant sites — is slower but far more durable than any shortcut.
Internal linking isn't a backlink, but it still helps
While you're building external links, don't neglect linking between your own pages — it's free, entirely within your control, and helps distribute authority to pages that need it, including deeper ones (see our note on crawl depth).
What to avoid entirely
Paid link networks, automated blog-comment link drops, and any service promising "hundreds of backlinks" for a flat fee are the shortcuts most likely to get a site penalized rather than helped — if it sounds too easy, it usually violates search engine guidelines.
The bottom line
Real backlink building is slow and manual by nature — that's exactly why it works as a ranking signal. Free doesn't mean instant; it means the actual cost is time and genuinely useful content rather than money.
Try it yourself
Put this into practice with our SEO Tools.