The Animal Welfare Hub has reached 2,150 pages of evidence-based content, representing one of the most comprehensive online resources for animal welfare science, policy, and practice. This milestone builds on years of continuous development covering farmed animals, companion animals, wildlife, aquatic species, invertebrates, and the full spectrum of welfare issues from individual pain management to global policy reform. The hub covers all major livestock species (cattle, pigs, poultry, sheep, goats, horses), companion animals (dogs, cats, rabbits, exotic pets), wild animals across every biome, and emerging topics including climate-welfare interactions, precision livestock farming, and invertebrate sentience. Each page synthesises peer-reviewed research, international standards, and practical guidance. The hub serves as a freely accessible knowledge base for farmers, veterinarians, welfare scientists, policy makers, students, and concerned citizens. All content is available at https://animal-welfare-site-64148b.gitlab.io — no login required.