How it works, examples, questions
Almost any yes/no question or condition that can be checked against publicly available web information. State the outcome you want, rather than the page change you expect, and be as specific as possible for best results.
Ask a yes/no question or write a plain-English statement describing what must become true to be alerted — e.g. "Is this item back in stock: example.com/product?". AlertChecker's AI periodically checks relevant public web information and notifies you when the answer changes to yes.
Ask a question with a clear yes or no answer that may change over time, such as "Has registration opened?". Open-ended questions such as "What is the best option?" cannot trigger an alert; rewrite them as a condition instead.
AlertChecker sends alerts by email. Signed-in users can also enable browser push notifications after creating an alert, on supported devices.
Yes — connect AlertChecker's MCP server to any MCP-compatible assistant and it can create alerts for you from plain English, e.g. "Alert me when...". See the Connect page for setup instructions.
The more specific, the better. Rather than "Is a PlayStation 5 in stock?", try "Is the PS5 disc edition in stock at direct.playstation.com/en-gb/ps5?". Including a URL and precise conditions reduces false positives.
Not necessarily. For specific product pages, include a URL in your question or statement for more precise monitoring. For general topics like "Has the S&P 500 dropped 3% today?" or "Will SpaceX Starship launch tomorrow?", no URL is needed.
Checking frequency depends on overall demand and the complexity of your alert. Supporters (donors) receive higher priority and more frequent checks.
Every alert email contains an unsubscribe link. You can also manage your alerts (including deleting or deactivating them) from the My Alerts page.
Yes — but users on the free plan have lower checking priority. An optional donation moves you onto the Supporter plan, giving your alerts higher checking priority and more frequent checks for one year.