# Domain probe > One-click health check of any domain: DNS/TXT records, HTTPS, redirects, robots.txt, sitemap, llms.txt and key paths. - URL: https://domain-probe.restockalarm.workers.dev/ - Price: 2 USDC on Base (chainId 8453), one-time, no account - Pay page: https://domain-probe.restockalarm.workers.dev/pay - Pay to: 0x7B97303d62517eA9E26D1E1b199Eac42a487F430 - Token: USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 ## What you get - DNS TXT (SPF/DMARC/verification) lookup - HTTPS + redirect chain check - robots.txt, sitemap.xml, llms.txt, security.txt presence - Shareable HTML report + JSON ## How to buy (agent flow) 1. POST https://domain-probe.restockalarm.workers.dev/api/order -> JSON {order, id, amount, amountUnits, payTo, eip681, startBlock} 2. Send exactly `amount` USDC on Base to `payTo` (eip681 URI given; extra micro-cents identify the order) 3. Poll GET https://domain-probe.restockalarm.workers.dev/api/status?order= until paid=true; response contains the unlock link 4. After payment you get /report?token=… — enter any domain to get the full probe report (token valid 7 days). ## Free demo - https://domain-probe.restockalarm.workers.dev/demo ## Catalog - https://product-katalog.restockalarm.workers.dev/llms.txt