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Forewarn watches public web pages — competitor pricing, product changelogs, news, regulatory docs, anything — and tells you in one sentence when something meaningful ships. You add URLs, Forewarn renders and extracts them on a schedule, diffs them against the previous snapshot, and sends the summary to email or Slack.

The explicit goal is to be ignorable: quiet when nothing matters, loud exactly when something does.

1. Create an account. Free plan includes 5 URLs.
2. Go to Dashboard and add a source + a URL to watch.
3. Connect a destination in Settings — email by default, Slack via an incoming webhook.
4. That's it. Forewarn will start checking on the next cron tick and notify you when a meaningful change lands.

Forewarn tunes its classifier per page type. When you add a URL, it's auto-classified into one of:

• pricing — plan names, prices, feature bullets.
• changelog — new entries or major version bumps.
• blog — new posts only; unchanged listings ignored.
• careers — new roles appearing or disappearing.
• other — generic diff-based classification.

You can override the page type on any URL — useful for pages that look like one thing but behave like another (e.g. a pricing FAQ).

Each URL has a frequency: daily (default) or hourly (Pro and Team). Forewarn runs a dispatcher every 15 minutes; any URL whose next_check_at has passed gets queued.

Be aware that many small sites block bots that hammer them. Forewarn uses a real browser fingerprint and respects per-domain concurrency limits.

Every diff is labeled meaningful, minor, or ignore with a confidence score. Only meaningful changes trigger notifications.

The underlying rules — with examples — are:

• pricing: any number, plan name, or feature bullet change → meaningful.
• careers: new role → meaningful; role removed → minor.
• blog/changelog: new post/entry → meaningful.
• CSS, whitespace, analytics IDs, CSRF tokens, timestamps → ignore.

Add as many destinations as your plan allows in Settings.

• Email — a once-daily digest at 9am in your timezone, plus urgent alerts immediately.
• Slack — paste an incoming webhook URL. One alert per meaningful change.