Comparisons

If performance issues or retaining full control over your reverse proxy at edge to meet compliance and auditing requirements is a priority, Pomerium is the better solution.

Okta is best used with Pomerium to provide authorization per request, the other half of what makes for good zero trust architecture.

Tailscale and Pomerium are potentially good complementary solutions, with Tailscale providing reachability and tunneling directly to hard to reach servers and Pomerium providing context-aware access to web applications and services for a true zero trust architecture.

StrongDM is a great tool for securing your databases and Pomerium is for securing your HTTP-based applications. You can use StrongDM with Pomerium to ensure your servers and services are protected.

If you want to support a hybrid infrastructure or utilize other clouds (such as AWS or Azure) you will want to use Pomerium to avoid bandwidth and latency costs.