In 2011, all first-class one ounce stamps became forever stamps with the exception of stamps in coils of 500, 3,000, and 10,000. As the name suggests, Forever Stamps can be used to mail a one-ounce letter regardless of when the stamps are purchased or used and no matter how prices may change in the future.
Testing in production is an important core competency for any world-class test team to cultivate. In this post we will give you some practical tips to make testing in production an achievable reality â and to mitigate the obvious risks that it exposes.
What is A/B Testing? A/B testing (sometimes called split testing) is comparing two versions of a web page to see which one performs better. You compare two web pages by showing the two variants (let's call them A and B) to similar visitors at the same time. The one that gives a better conversion rate, wins!