Google Algorithms

PANDA

Aim - To deliver high quality content

1. Check for plagiarism, i.e. duplicate content and add no index to the webpages having it.
2. Reduce bounce rate: It should be less than 60% add visual content, call to action, reduced load time.
3. Retain visitors.
4. Improve user experience

PENGUIN

Aim - To Penalize unnatural link

1. Remove unnatural links.
2. Reduce keyword stuffing
3. Don't over optimize

HUMMINGBIRD

Aim - To provide better results for search queries.

1. Use long tail keyword.
2. Conversational content.
3. Proper structured data to serve better results.
4. Engaged content.