The NFL had several scoreless ties in its history, but none have occurred since the NFL merger in 1970.
NFL Scores History: Highest/Lowest Scoring Game, Common Scores, and More
NFL scoring is down, and offenses have been sputtering, and here's why that may be - Yahoo Sports
Mind-blowing stats for the divisional playoffs
The 10 Worst Teams in NFL History, News, Scores, Highlights, Stats, and Rumors
Iowa, Minnesota set betting record for lowest college football
What Is the Lowest-Scoring Super Bowl in NFL History? – NBC Boston
What is the lowest scoring NFL game of all time? Has a game ever
Lowest-Scoring NFL Playoff Games of All Time
Point Total Tiebreakers: What Are the Most Common Scores? - PoolGenius
The lowest scoring men's DI college basketball games
Scoring Plays NFL Football Operations
10 best NFL defenses of all time, ranked
What is the lowest-scoring Super Bowl? List of fewest points scored in NFL history
NFL teams that score 16 pts win more often than those scoring 21. Why?