Hello All !! Is changes of web page content harm of good for website Ranking? actually i changed my web page content after changes my domain URL invisible and show its internal page so suggest why my domain URL invisible.

Search engines like when pages are not left stale, but rather are constantly updated and maintained. In fact, you can create a Google Sitemap file and specify a list of all of your URLs along with when they were last updated.

However, I'm confused by the other part of your question. You changed your domain? It was invisible? What's invisible? I'm confused what you're trying to say.