Check the date when a URL was first crawled by Google
(and probably published)
- In a new Google Chrome window, go to Bookmarks → Bookmark This Page... and click the More... button.
- Change the Name value to
Get Publish Date
- Change the URL value to
- Add it to the Bookmarks Bar folder
- All done! You can now click the Get Publish Date bookmark on any page and get directed to a Google search result showing the date when Google first discovered the page (and probably when it was first published).