News of TikTok's achievement was reported by tech-security company Cloudflare.br The social media app made quite the climb this year, considering that in 2020 it was ranked No. 7 while Google sat at the top.br Some experts attribute TikTok's success to the pandemic as people look for more ways to occupy their time.br The app claimed 1 billion monthly active users in September.br After TikTok, the top domains this year were as follows:br 2. Google.combr 3. Facebook.combr 4. Microsoft.combr 5. Apple.com.br 6. Amazon.combr 7. Netflix.combr 8. YouTube.combr 9. Twitter.combr 10. WhatsApp.com.