Most popular webhook providers were reviewed for their implementation of key features that make a great webhook experience, including automatic retries, exponential backoff, signature verification, manual retries, event types, multiple endpoint support, and log visibility. Stripe, GitLab, and Svix stood out as the top performers, offering all 7 features, while Shopify came close with 6. The review highlighted the importance of retry policies, with most providers having low retry limits, and noted that signature verification was a critical component to secure webhook services. Some providers were praised for their attention to detail in implementing these features, while others fell short in providing a seamless developer experience.