Rahul Parwal is a software engineer, speaker, mentor, and writer out of Jaipur, Rajasthan. He has dabbled in software development, testing, and automation, and often shares his learnings in his blog. In this QnA, Rahul makes the point that a randomly failing test is always worth investigating and that assumptions are dangerous in testing.

In this series, real (and really good) QA practitioners use their experience to support—or debunk what you might know about software quality. James Espie is a test specialist, a quality engineering proponent, and a continuous learner from Auckland, New Zealand. He shares his insights and sporadic bursts of inspiration in a hilarious newsletter called Pie-mail. If you haven’t seen it, you should check it out.

Did you know that an average user takes only 0.05 seconds to form an opinion on a website? Yes, Sweor’s study on website statistics shows that users decide whether they want to use a website or not in a fraction of a second. We can also note that about 57% of the global population doesn’t recommend non-responsive websites in the same study. In general, most websites or web apps run into errors because of a solitary reason: solid cross-browser testing isn’t performed.