According to analysis by data firm Similarweb, the downward trend among the most popular sites is widespread. Pornhub lost more than a million visitors in just two weeks, dropping from 3.2 million to two million. Similarweb compared the average number of daily users collected from August 1 to 9 with the average number of users in July. The figures appear conclusive: Pornhub experienced a 47% drop from the day before the new system went into effect to August 8.