Automatically Submit Sitemaps to Google During Gatsby Build
You can let Google know that your website (and the content within) has been updated by submitting an updated sitemap automatically via a simple Node.js script.
Articles
FTP
FTP (File Transfer Protocol) belongs to an older style of web deployment, but it still turns up in legacy hosting and static‑site maintenance. The articles here preserve the useful parts of that experience without presenting manual file transfer as the way a new platform should be run.
Automatically Submit Sitemaps to Google During Gatsby Build. 
Automatically Deploy a Static Gatsby Site via FTP. Automatically Deploy a Static Gatsby Site via FTP
Deploy a static Gatsby build over FTP with environment variables, ftp‑deploy, build scripts, and a practical CI flow for conventional or legacy hosting.
Prepending PHP to a Page in Gatsby. Prepending PHP to a Page in Gatsby
Need a little PHP inside a Gatsby build? This guide shows a pragmatic way to prepend server‑side code when a fully static approach is not enough.