What are top 3 directives to prepare for a Google algorithm update?

[ejcruz]

Company's site fluctuated in keyword rankings last Friday, due to Unnamed algorithm. Our directives are on-page optimization and continual content generation.

What are other directives to take?

[Martijn_Scheijbeler]

Have you evaluated your link opportunities but also your current backlink profile? This could help you in finding out if there are any opportunities that you might be able to take advantage of or the links that might be hurting you currently.

[ejcruz]

I've evaluated backlinks through SEMRush, and find backlinks from page score 1. Is this something to be concerned over?

[Martijn_Scheijbeler]

What I would also look at is the data that you can find in Google Search Console about the backlinks that you have so you're able to check their quality.