A/B testing (split testing) is the process of setting up two versions of one page, and testing which page outperforms the other. Here's how to do it right. Did you know that you can test certain ...

If you don't feel well, you may worry that you have COVID-19. The only way to know for sure is to take a test. At-home tests can tell whether you have the virus right now. More specialized antibody ...

Allergies can be triggered by a variety of things, including indoor and outdoor irritants, as well as foods. If you notice allergy symptoms in your child, make an appointment for them with a ...

You can't place orders for at-home COVID testing kits anymore, but there are still resources available for free testing. Peter is a writer and editor for the CNET How-To team. He has been covering ...

Microbiome tests measure the microorganisms in a person’s gastrointestinal (GI) tract. These tests can give the person an idea of the types and amounts of microorganisms in their gut. However, people ...

Molecular testing, or molecular diagnostics, refers to a group of tests that look at the genetic material in a specimen. It can detect genetic risk factors for certain diseases or provide evidence of ...

Many Americans have wrestled with this dilemma at some point during the pandemic, yet it still seems to come up again and again: When can you stop isolating after a COVID-19 infection? The question is ...