F5Bot

What is F5Bot?

F5Bot is a free Reddit keyword monitoring service that emails you whenever your chosen keywords show up on Reddit, Hacker News, or Lobsters. You don't need to pay, enter a credit card, or even create an account. You submit the words and phrases you want to track, and F5Bot scans every new post and comment for matches. That stripped-back approach has made it a default pick for founders, indie hackers, and marketers who want to catch brand mentions and buying-intent conversations without paying for a full social-listening platform.

Key Features

• Email keyword alerts: F5Bot emails you as soon as one of your keywords appears in a new post or comment.
• Reddit, Hacker News, and Lobsters: Track all three communities from one keyword list instead of checking each site by hand.
• Two-minute setup: Add a keyword, confirm your email, and you're live. There's nothing to configure and no integration to wire up.
• Free with no limits: No paid tier, no usage caps, and no feature gates. Every part of the service is available at zero cost.

Is F5Bot Worth It?

If all you need is to know when a keyword gets mentioned on Reddit, F5Bot is hard to beat. It's free, dependable, and takes a couple of minutes to set up. The trade-off is depth. There's no dashboard, no sentiment analysis, and no historical search, so teams that need to measure share of voice or triage mentions at scale will eventually outgrow it and move to a paid alternative. As a first line of defense for brand monitoring, though, it's one of the easiest tools to recommend.