A/B testing importance

[sarahcanfield]

What is A/B testing in adwords ? How important it is ? and is it must for every campaign to have A/B testing ?

[imsas]

A/B testing is where you test two or more landing pages to see which landing page has better conversions...

[LeadBoltBrian]

It's one of the best vehicles for determining what to scale. Our multivariate testing gets as specific as what colors convert better...

[Hellospank]

a/b testing is the discipline of testing interactions or engagements between two alternatives of a piece of digital content, usually a web page, email or piece of digital advertising. These techniques are useful to test a new piece of body copy or two equally strong pieces of creative.

From my point of view, a/b testing are needed in many cases but it depends on how relevant you considerate SEO for your own business