For contractors, the listings that get checked are review sites and directories, the BBB, state license and registration records, and your own website. When we asked ChatGPT about specific contractors, it cited a review site or directory in 11,641 of 11,982 answers, the BBB in 10,582 and a government or licensing site in 10,288. Google itself was linked in 160.
Some trades have their own sources. Manufacturer or certification sources appeared in 892 of 1,500 roofing answers, and the IICRC in 931 of 1,500 water damage answers. If you hold a certification, check that its directory lists you correctly.
Source: Mindflow's research on what ChatGPT checks before recommending a contractor, October 2026. "ChatGPT" means the OpenAI API with web search; a citation shows what an answer linked to, not how much weight it carried. Methodology.