Question 1

Who uses bulk DNS lookup?

Accepted Answer

Common users: (1) MSPs auditing DNS health for multiple client domains. (2) Security researchers investigating phishing infrastructure. (3) Domain registrars checking portfolio health. (4) E-commerce platforms verifying DNS of seller/partner domains at onboarding.

Question 2

What is the maximum number of domains I can check at once?

Accepted Answer

The bulk DNS checker currently supports up to 100 domains per query. For larger datasets, split the list into batches or use the free API for programmatic bulk lookups.