A 503 on a Plesk for Windows site means its IIS application pool has stopped. Restart it in Plesk, read the System log entry for the real cause, then fix Rapid-Fail Protection or a broken pool identity.
Copy-ready web.config redirect and rewrite rules for sites on Plesk for Windows: single pages, whole folders, old domains, bulk redirects with a rewrite map and front-controller rewrites, plus how to test them and fix HTTP Error 500.19.
Send every visitor to the HTTPS version of your site with a single 301: the cPanel and Plesk switches, copy-ready rules for .htaccess, Nginx and IIS, how to do www and HTTPS in one hop, and how to fix ERR_TOO_MANY_REDIRECTS.
Publish your ASP.NET Core app, upload it to Plesk for Windows with File Manager or Web Deploy, set the environment, update it without file-lock errors, and fix the 500.30, 500.31, 500.19 and 500.35 startup errors.
Configuring SSL in IIS isn’t difficult, but the binding step trips up a lot of people — especially when a certificate imports successfully but the site still serves HTTP. This guide walks through the full process on Windows Server 2019 and 2022.
IIS (Internet Information Services) is Microsoft’s built-in web server for Windows. This guide walks you through installing and configuring it on Windows Server 2019 or 2022, from enabling the role to serving your first site.