Copywriting

Keyword difficulty is an SEO metric that estimates how difficult it is to rank for a keyword, based on the authority of the sites that already rank for that keyword. 

The higher the keyword difficulty, the harder it is to rank for that keyword.  

The metric on a scale of 1-10 takes in...

In this phase, you are validating your business model hypothesis, but you are still testing (by making real sales). Don’t try to scale up yet — the object of your sales is to test your business model.

For physical products, you don’t need a lot of customers, just a few...

Decide what to test, create two versions, decide on how long to run the test, collect enough data, analyze.

If you’re running an on-site test, you’ll want to think of all the sales-related pieces of your website, and then figure out which elements to split test:

• headlines