What are some famous Black Hat SEO techniques?

[handmaderug]

What are some famous Black Hat SEO techniques?

[amarnathsmm]

Link farming is a questionable search engine optimization (SEO) tactic in which a website enters a relationship of reciprocal linking with another site or pays a provider for a large number of inbound links.

[Saravanan28]

Keyword Stuffing.
Link Exchanges.
Duplicate Content.
Comment Spamming.
Google Bombing.
Low quality content.

[Mithzi Rai]

What are some famous Black Hat SEO techniques?

Keyword Stuffing.But don't use this techniques

[SKPglobal]

Content Automation.
Doorway Pages.
Hidden Text or Links.
Keyword Stuffing.
Reporting a Competitor (or Negative SEO)
Sneaky Redirects.
Cloaking.
Link Schemes.