AI Product & Business Strategya16zcontextOct 16, 2026
The share of 'Forbidden' responses served to AI agents has roughly doubled since the summer
a16z's This Week in Charts on 16 October 2026 cites Cloudflare data showing that the share of 403 'Forbidden' responses received by agents and bots has grown considerably since the summer, to about double what it once was.
Agents that shop or browse on a user's behalf will hit more blocks, which pushes builders toward sanctioned APIs and merchant partnerships.