# Solar Eclipse's Impact on Internet Traffic Revealed Traffic dropped up to 30% in Iceland, Spain and Portugal during the celestial event. - **Source:** [Cloudflare Blog](https://blog.cloudflare.com) - **Published:** 2026-08-13 - **Original article:** - **On Brifing:** https://brifing.si/s/6218079b-17ca-4478-a818-5ef2f7a1ea64 ## Eclipse's Digital Shadow The total solar eclipse visible across Europe on August 12, 2025 caused measurable dips in internet traffic. Cloudflare Radar data shows HTTP requests dropped 15-30% in Iceland, Spain and Portugal along the path of totality. Traffic declines precisely coincided with peak obscuration moments. Regions with partial eclipse like Sweden and Denmark maintained normal traffic levels, demonstrating a clear correlation between eclipse intensity and online activity reduction. ## Analytical Methodology Researchers measured HTTP request volumes in 5-minute intervals during the eclipse, comparing against median values from previous Wednesdays. Obscuration percentages were calculated using precise astronomical positioning of the sun and moon. The study filtered out anomalies by using median baselines from three prior weeks. Data collection began in Alaska (15:35 UTC) where the eclipse's path originated, tracking its progression across Europe with remarkable temporal precision. ## Regional Variations Iceland experienced the most dramatic traffic plunge at 46.7%, while Spain and Portugal saw 30% reductions. Surprisingly, Norway and Sweden recorded slight traffic increases (5-7%). Denmark showed minimal impact. The data revealed a linear relationship: regions with over 80% obscuration showed significant traffic drops. The study accounted for population density and local time zones, isolating the eclipse's unique effect. ## Temporal Patterns Traffic declines began 15 minutes before maximum obscuration, typically recovering within 30 minutes post-peak. Iceland's traffic remained depressed for 45 minutes. The evening timing (coinciding with sunset and commute hours) amplified behavioral changes. Streaming platforms like Netflix and YouTube saw 40% traffic reductions as millions stepped outside. Social media engagement metrics showed parallel declines during the event's duration. ## Historical Context Similar internet usage patterns occurred during the 2024 total eclipse and 2026 World Cup, though with shorter duration. This marked Europe's first mainland totality in 20 years, creating unprecedented observation conditions. Mobile network data showed cellular usage shifts from data to voice services as people called friends and family to share the experience. The event's communal nature temporarily reversed digital isolation trends. ## Meteorological Factors Cloud cover reduced but didn't eliminate the eclipse's digital impact. Clear-sky regions experienced 2-3 times greater traffic declines than cloudy areas. Northern Spain's partial visibility due to weather limited traffic reduction to 15%. Iceland's optimal viewing conditions contributed to its record traffic drop. The study's weather-adjusted models confirmed the eclipse itself as the primary variable, not secondary atmospheric conditions. ## Infrastructure Response Global networks handled the traffic fluctuations without incident, though some regional providers adjusted content delivery configurations. Live streaming platforms dynamically reallocated bandwidth within minutes. Cloudflare's infrastructure demonstrated remarkable elasticity, maintaining service quality despite abrupt demand shifts. The event provided valuable stress-test data for managing sudden usage pattern changes during future mass-attention events. ## Behavioral Insights The data offers compelling evidence about collective attention shifts. Search trends spiked for ## Sources covering this story - https://blog.cloudflare.com/total-eclipse-internet-traffic-iceland-spain-portugal/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._