> Over 550 million people have used Zamzar since launch,

There are 8.3 billion people on earth. You are saying that about 1 in 42 have used your service? I had never heard of it and I don't know anybody who had. And that's a sample that should be biased in your favor. Sorry, does not pass the smell test.

Or maybe they were not unique visitors, containing duplicates? How many? This makes me skeptical of the remaining statistics on the page.

> converting over 766 million files. We now process over 1 million API requests per day.

1 million per day now and 766 million over 20 years? At the current rate you'd achieve that in about 2 years. This would indicate a rapid growth in the last couple years or even just months. It is unclear why that would be reasonable. Especially since you'd probably have emphasized this explosion more if your service was essentially dormant for 19 years and just recently went through the roof. (Sth like "how we handled 100x growth of our SaaS business over 3 months")

After these two data points I stopped reading. Something doesn't feel right.