documentation-seolisted

# Documentation SEO Documentation is the most under-optimised high-value asset on almost every software site. It ranks for enormous long-tail volume, it's what existing customers search for, and it is disproportionately what AI assistants quote when answering questions about your product. It's also usually hosted on a subdomain nobody owns, generated by a tool nobody configured, and excluded from every SEO conversation. ## Why it matters more than the blog - **Long-tail volume at scale.** Every error message, parameter, endpoint and configuration option is a query. - **Highest-intent traffic on the site.** Someone searching your docs is using or evaluating the product. - **The AI citation asset.** When someone asks an assistant how to do something with your product, the answer comes from your docs. If your docs aren't crawlable, the assistant answers from a three-year-old forum post instead. - **Support deflection**, which is a real cost saving with a measurable number attached. - **Competitive discovery.** People search "how to do X in [competitor]" and land on whoever documented it best. ## The decision that matters most: where docs live | Option | SEO effect | |---|---| | `example.com/docs` | **Best.** Contributes to and benefits from the main domain's authority | | `docs.example.com` | Weaker. Authority sharing across subdomains is less certain | | Third-party hosted on their domain | **Worst.** You're building someone else's domain | **Put docs in a subdirectory o