Backlink
A link from another website to yours. Still one of the strongest signals of authority in search, and increasingly a signal of trust to AI systems too.
In depth
What it really means
A backlink is a vote you did not cast. That independence is the entire source of its value, and it is why bought and traded links get discounted: the moment a link stops being editorial, it stops being evidence.
One thing has changed. Language models do not follow links, they read text. A mention of your brand alongside your category in a trusted article now carries weight even with no hyperlink attached. See unlinked brand mention. Links still matter for search, they are just no longer the only thing worth earning.
How it works
- Another site publishes a page containing a link to yours.
- Crawlers discover the link and record the source, destination and anchor text.
- Authority flows from the linking page to yours, unless the link is marked nofollow.
- Aggregate link signals contribute to how the destination page and domain are assessed.
Pros & cons
Pros
- Still the strongest external ranking signal in search.
- It brings referral traffic independent of any ranking effect.
- The coverage that earns links also builds category association for AI answers.
Cons
- Slow and expensive to earn honestly.
- Bought links carry real penalty risk and are increasingly easy to detect.
- Volume without quality does nothing, so the metric misleads.
Common mistakes
- Chasing link count instead of referring domains. Fifty links from one site is roughly one link.
- Buying links, which risks a manual action for a temporary and unreliable gain.
- Ignoring unlinked mentions, which now carry real weight for AI visibility.
- Building links to your homepage when the pages that need them are deeper.
- Treating domain authority as if it were a Google metric. It is a third-party estimate.
Best practices
- Publish something worth linking to: original data, a free tool, a strong specific position.
- Prioritize new referring domains over additional links from existing ones.
- Earn links to the pages that actually need to rank, not just the homepage.
- Get into the comparison and roundup posts your buyers already read.
- Track unlinked mentions alongside links, since both feed AI visibility.
FAQs
What is a backlink?
A link from another website to yours. It functions as an independent endorsement, which is why editorial links count and bought ones get discounted.
Do backlinks still matter in 2026?
For search ranking, yes, they remain one of the strongest signals. For AI visibility, unlinked brand mentions now carry comparable weight, because models read text rather than following links.
How many backlinks do I need?
The count is the wrong metric. Referring domains matter more than total links, and one link from a genuinely trusted source in your category beats fifty from directories.
Are paid links safe?
No. They violate Google’s guidelines, they are increasingly detectable, and the downside is a manual action that costs far more than the links gained.
How do I get backlinks without outreach?
Publish something that is genuinely the best available source on a specific question: original research, a free tool, or data nobody else has. People link to it because they need it.
Keep reading
Related on LymLyt
Beyond LymLyt
Further reading
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