Keywords in Image Alt Text

Category: On-page Value
Frequency of Checking: Monthly
Importance Level: 3/5

Do’s: Have the main keywords in the alt tags. This helps in ranking.
Don’ts: Don’t spam it for all the images, just have it for some of the images which are big in size. Focus on the keywords which are not a part of the template.
Quality check: Check the images on important pages and see if those can have keyword based alt tags and contain right keywords. Also see for over optimization.
Progress check: See the pages where the keyword density is added.