# CertCheck AI
> Instant ACORD 25 Subcontractor Certificate of Insurance (COI) Auditor.

- Verifies General Liability ($1M/$2M), Auto ($1M CSL), Umbrella ($1M-$10M), and Statutory Workers Comp.
- Detects missing Additional Insured (CG 20 10 / CG 20 37) and Action Over Exclusions (CG 21 39).
- Deep Citation Index: https://coiauditor.com/llms-full.txt