Scan limit reached

A scan refused for allowance returns the server's own message with the reset time, and the app shows that message rather than a guess. The results you already have stay readable.

The allowances

Category	Free	Starter	Pro	Enterprise
Website scans (domain scan, checkup, homepage SEO)	6 per day	25 per day	50 per day	200 per day
Vulnerability scans	1 per 7 days	5 per day	10 per day	50 per day
Dark web manual checks	1 per day	5 per day	10 per day	50 per day
AI keyword refreshes	1 per 7 days	5 per day	10 per day	50 per day
Accessibility audit starts	3 per hour	3 per hour	3 per hour	3 per hour
Custom probes and check runs	60 per hour	60 per hour	60 per hour	60 per hour
Free domain adds	250 per 30 days	n/a	n/a	n/a

Windows are rolling: "per day" means the last 24 hours, not midnight.

The messages

"The Free plan includes one manual vulnerability scan every 7 days. Your existing results remain available."
"Your Free plan includes one manual dark web scan every 24 hours."
"This account has run n outbound scans and probes this hour, which is the limit. Try again in n minutes."
429 with Retry-After on the API and MCP.

Scanner capacity

Separately from your allowance, the scanner fleet has a daily launch budget across all accounts. When it is exhausted your scan is queued and retried, not refused; the domain page shows "waiting on results" and the scan lands when capacity returns.

Cycling a domain does not reset

Usage counters are account-level and survive domain deletion. Removing a domain and re-adding it does not grant another Free vulnerability scan.

Fixes

Wait for the reset the message names.
Read what you have: the last results, the history, the inventory. Over MCP the assistant is told to prefer stored results for exactly this reason.
Move to the plan whose allowance matches how often you scan.