Tumblr Statistics

Key Takeaways

1. 1Tumblr was classified as a social media network in the Social Networks & Communities category in Similarweb’s web category taxonomy (accessed 2026-09-21)
2. 2Tumblr’s 2023 ad spending was $0.0 million (no recorded ad revenues in AdStage data series)
3. 3Tumblr ranked #2 among “Social Media Networks” within the 100 most-visited websites in the United States (July 2024)
4. 4In 2019, Automattic reported acquiring Tumblr for $3 million from Verizon
5. 5In 2018, Tumblr announced a change that would remove adult content, and reported the update would start in February 2019
6. 6Tumblr had 20.7% of traffic from referral sources (May 2024)
7. 7In 2020, TikTok was installed on 1.5% of devices measured in a mobile app usage panel, while Tumblr usage was near-equilibrium with low penetration; reported in a mobile measurement report that benchmarks multiple apps
8. 8Tumblr’s Cloudflare case study reported 1.5x improvement in throughput under peak loads
9. 9In 2018, 11% of US adults who reported using social media said they use Tumblr at least monthly (Pew’s platform-frequency breakdown)
10. 1043.2% of Tumblr’s 2015–2016 visitors were from mobile devices, based on Similarweb mobile share estimates reported in a 2017 analysis
11. 1147.5% of Tumblr users were female in the United States (2017)

Tumblr is a top US social site with strong mobile reach, even after major adult content and ownership changes.