Tool data
Many HighSEOTools utilities run in the browser. For those tools, routine pasted text, JSON, binary strings, metadata fields, and similar inputs are processed inside the visitor's session and are not intentionally stored by HighSEOTools.
Some website audit tools need a public URL or domain. Those requests may be sent to a server endpoint so the application can fetch public headers, HTML, redirects, DNS clues, sitemap signals, or availability details.