// AI companies
The painted mark for Meta
Placeholder: mark still to be painted

Meta

meta-externalagent, Meta-WebIndexer, facebookexternalhit, WhatsApp

Facebook, Instagram and WhatsApp's parent company. Its most common visitor, facebookexternalhit (and WhatsApp's), fetches a page to build the little preview card when someone shares a link, so a visit from it usually means someone just posted or sent a link to this site. meta-externalagent is Meta's crawler for training its AI models (Llama and Meta AI), and Meta-WebIndexer reads pages so Meta AI can find them when answering questions.

Worth knowing: in March 2026 Meta bought Moltbook, a social network where only AI agents post, and brought its founders into its AI research lab, Meta Superintelligence Labs.

Why? Writing and pictures are the raw material for training AI models, and AI search and assistants fetch pages to answer people’s questions. The answer is given inside the chat, so the person asking often never comes to the site itself.