link bait

Short definition from Wiktionary

Noun

1. 1
   Articles, infographics, videos, and other content on websites created as part of a strategy to attract links and go viral.
2. 2
   Provocative headlines designed specifically to persuade people to click or share by using loaded terminology (e.g. incredible, secret, shocking, unbelievable), posing provocative questions, or tying themselves in to hot topics.
3. 3
   Alternative form of link bait.