DNS Check vs DNSai

DNS Check monitors DNS records and name servers for changes, lookup failures and troubleshooting issues. Automated checks run every five minutes on all plans, with one-click rechecks, record history and shareable read-only reports. The checker compares entered records with DNS responses and can flag unresponsive name servers, missing or duplicate records and invalid SPF records. Fourteen record types are supported, including A, AAAA, ALIAS, CAA, CNAME, HTTPS, MX, NS, PTR, SOA, SPF, SRV, SVCB and TXT. Notifications can use email, PagerDuty and Slack on all plans, with listed integrations including Basecamp, Jira Service Management, Nagios, OpsGenie, Pingdom and Splunk On-Call. The REST API returns JSON, uses API keys and is available to every account for individual records or groups. Basic is free for 10 records and seven days of history. Professional costs $8 a month, or $80 yearly, for 100 records and 90 days. Higher plans cover up to 3,000 records; more requires a quote.

DNSai profiles domains from public DNS records, presenting information about mail providers, security posture, hosting, platforms, and record changes. Its Domain Manager scans more than 50 DNS record types, including A, MX, SPF, DKIM, DMARC, BIMI, and DNSSEC, while change history and webhook alerts help surface updates. A vendor record only shows that a domain published that vendor’s record; it does not establish seats, spend, or whether a contract is live. The product is available on the web and through DNS Explorer for Windows 11 and macOS; the maker says desktop processing keeps domain data on the user’s machine. Listed connections and exports include Salesforce and HubSpot sync, a Claude MCP connector, CSV export, and SIEM webhooks. The REST API is available on Enterprise plans and above. The Free plan costs nothing and covers 100 domains, 100 scans per day, one seat, limited AI, and no API or MCP. Pro costs $79 a month; Enterprise costs $499 a month. DNSai describes IT administrators, cybersecurity analysts, researchers, and operations teams as intended users.