click·bait
ˈklikbāt/
nouninformal
noun: clickbait; noun: click bait

(on the Internet) content, especially that of a sensational or provocative nature, whose main purpose is to attract attention and draw visitors to a particular web page.
“these recent reports of the show’s imminent demise are hyperbolic clickbait”

Using sensational, clickbait-type headlines for webpages or ads is not effective for SEO.  Instead, use concise, to-the-point headlines that do a good job conveying to the reader exactly what to expect when they click over to read the material.