A per-directory configuration file used by Apache when the server permits that configuration mechanism.
A practical example
An Apache-hosted website may use .htaccess rules for redirects or access controls.
What to watch for
Other platforms use different configuration systems. An .htaccess file does not configure Cloudflare Workers, and incorrect rules can break requests.
Related reading
Explore Technical SEO and Domain Name. Try our noindex checker for a practical next step. See how this fits into Technical SEO.