Text replacer for pages in website

Please let me know if the "Text replacer: Search and replace text in files. Optional regex pattern match with regular expressions." will also be able to replace text in an entire website.

If you store the website on disk (and e.g. upload with FTP), you could use it to replace text across all files in a website.

Thank you so much informative details you have shared above. It is really helpful for me and it will for others as well.