How to use Safari’s Search Results SnapBack shortcut
1) Launch Safari on your Mac and run a search by typing your query into the Smart Search field, or visit Google.com or some other search engine and run your searches there.
2) Click an item in your search results. Navigate from that page to another, then to another and so forth.
3) Now select the Safari window or tab where you previously searched, then choose Search Results SnapBack in Safari’s History menu, or press the Option (⌥)-Command (⌘)-S keyboard combination.
And boom, just like that you’ll be taken right back to the last full search you performed, landing on the first page of your search results. If you have multiple Safari windows or tabs open, the search results displayed are for the active window or tab.
This will save you having to click Safari’s Back button multiple times.
SnapBack supports any search engine that you can set as your default in Safari, including Google, Yahoo, Bing and DuckDuckGo. This feature does not work in Safari for iPhone, iPod touch and iPad.