{"domain":"mailtester.com","status":"valid","tier":"listed","authority":51,"verified":false,"title":"MailTester","summary":"MailTester (mailtester.com) is an email verification and deliverability testing platform. It cleans lists by removing invalid, risky, disposable and spam-trap addresses, and it tests where real campaigns land — inbox, promotions tab or spam — across Gmail, Outlook, Yahoo and other providers, with SPF/DKIM/DMARC checks and round-the-clock blacklist monitoring. Single-address checks, bulk list cleaning and an API are all available. Start free with 100 credits, no credit card.","llms_txt":"https://mailtester.com/llms.txt","llms_full_txt":null,"last_checked":"2026-10-20T02:34:46.637Z","agent_terms":null,"categories":[],"capabilities":[],"inferred_tags":[],"audience":null,"agent_uses":[],"language":null,"platform_generated":null,"agent_summary":null,"llms_txt_cached":"https://agentwebmap.com/v1/domain/mailtester.com/llms.txt"}