On Wednesday, August 12, a total solar eclipse crossed mainland Europe for the first time in twenty years, and millions stepped away from their screens to watch. Cloudflare’s network data shows internet traffic fell by as much as 46.7% in the hardest-hit regions as the moon blocked the sun, a drop the company attributes directly to the eclipse rather than any network failure (Cloudflare Radar analysis).
The company measured HTTP request volume in five-minute buckets across affected countries and compared it against a normal-day baseline built from the median of the three previous Wednesdays. The black diamonds marking maximum obscuration lined up almost perfectly with the deepest traffic troughs, signaling that as the eclipse deepened, online activity dropped in near-lockstep (Cloudflare Radar analysis).
Regions along the path of totality and those with the deepest partial coverage saw the steepest declines. A scatter plot of peak solar obscuration against traffic dip shows areas in totality fell roughly 15% to 30%, while Iceland, Spain, and Portugal recorded the most dramatic drops, with country-level traffic changes ranging from +9.3% to −46.7% (Cloudflare Radar analysis).
Where the sun was barely obscured, the effect vanished. Sweden, Denmark, and Poland quickly returned to pre-eclipse levels, and Norway and Sweden even posted slight traffic increases above baseline, while Denmark recorded the least overall change (Cloudflare Radar analysis).
Cloudflare notes the pattern mirrors what it saw during the 2026 World Cup and the 2024 total eclipse, when shared physical events temporarily reshaped digital behavior. The company publishes ongoing traffic insights from major world events on its Mastodon and Bluesky accounts, and the episode echoes a similar finding from zBrandco’s coverage of how the 2026 World Cup reshaped internet traffic.
The practical takeaway for operators: a continent-scale physical event can briefly depress traffic by nearly half without any infrastructure fault, so anomaly dashboards should expect sharp, short-lived dips during eclipses and other mass-attention moments rather than treating them as outages.
