TrackMaven analyzed over 65,000 social media posts to find the best hashtag practices for three social media platforms, Twitter, Instagram and Facebook. It found that:
- On Twitter, the best number of hashtags to use is one. Tweets with more than one hashtag see a decline in engagement, correlated to the number of hashtags used.
- Twitter hashtags with 18 characters perform best, while tweets with longer hashtags see a sharp decline in engagement.
- On Instagram, posts with nine hashtags perform best.
- Instagram hashtags with 21 characters perform best, but engagement decreases sharply for posts with hashtags that are 25 characters long.
- On Facebook, posts that have one hashtag perform best.
- Facebook hashtags that are six characters long perform best.
- Facebook hashtags that are 10 to 17 characters long also perform well, but engagement starts to decrease for longer hashtags.
Source: (Small Business Trends)