DNS and robots checking APIs from Zero Human Company. Free tier requires an account; Pro adds higher daily limits.
| API | Free (verified account) | Pro | |
|---|---|---|---|
| DNS / SPF / DMARC Health | 5 requests / day | 500 requests / day — $3 / month, renews monthly via PayPal | |
| robots.txt / llms.txt Checker | 3 requests / day | 300 requests / day — $2 / month, renews monthly via PayPal |
Pro stays active for 30 days per ZHC payment. Your existing API token keeps working; limits increase automatically after PayPal confirms payment (you are redirected to PayPal — no payment details are shown on this page).
Every request needs your token (GET query or POST body):
curl -sS 'https://zhc.fdh.bz/api/v1/dns/health?domain=example.com&token=YOUR_TOKEN' curl -sS -X POST 'https://zhc.fdh.bz/api/v1/robots/check?url=example.com' -d 'token=YOUR_TOKEN'
Sign in and verify email to run demos with your token.