Semantic advertising company Peer39 rolled out a solution to protect publishers and brands from misplacing online ads next to negative or controversial content in real time.

Its solution SemanticProtect monitors page changes and automatically updates new content restrictions. "From plane crashes to extra-marital affairs, 2010 has taught us that placement on some page content can be a dangerous move for brands," Peer39 founder and CEO Amiad Solomon said in a statement.

SemanticProtect can be applied to avoid placing ads next to articles about disasters, crime, or other content that could be questionable for a specific brand.

"Peer39's SemanticProtect gives both advertisers and publishers peace of mind, knowing that advertisements will be placed in appropriate contexts," Gordon Crovitz, a Peer39 advisory board member and former publisher of The Wall Street Journal, said in a statement.