🔑
key
🔑 Emoji Meaning
Key, when opening a door or lock.
Depicted as a gold, bronze or copper key at a 45° angle, with a rounded head and notched blade.
Often used for a symbolic sense of a key, such as the key to success, is a key ("key"). DJ Khaled uses the emoji to indicate that his Snapchat story is official (verified).
Apple's design previously resembled gold and could also represent a digital key in public key technology.
This would explain why the emoji does not appear in page titles on Apple's Safari web browser, presumably to prevent lesser-known sites from pretending to have HTTPS installed for encryption.
