Promptwatch vs DarkVisitors (Known Agents) (2026): Full comparison

Key takeaways

• Promptwatch and DarkVisitors (now rebranded as Known Agents) solve fundamentally different problems -- one is an AI search optimization platform, the other is a bot traffic monitoring and access control tool
• If your goal is to rank better in ChatGPT, Perplexity, or Google AI Overviews, Promptwatch is the right tool; Known Agents won't help you get there
• Known Agents has a free tier; Promptwatch starts at $99/month but offers a 7-day free trial and significantly more depth for marketing use cases
• Known Agents is stronger for blocking unwanted scrapers, auto-updating robots.txt, and identifying bots spoofing legitimate crawlers -- Promptwatch doesn't do any of that
• Promptwatch covers 10+ AI models with prompt tracking, content gap analysis, and built-in content generation; Known Agents tracks bot sessions and LLM referrals but stops there
• These tools can complement each other -- Known Agents for the defensive/technical layer, Promptwatch for the growth/optimization layer

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Overview

Promptwatch

Promptwatch is an end-to-end AI search visibility platform used by 7,000+ brands including Booking.com, Center Parcs, and ABN AMRO. It monitors how your brand appears across 10+ AI models (ChatGPT, Claude, Perplexity, Gemini, Grok, DeepSeek, Copilot, Meta AI, Mistral, Google AI Overviews), identifies which prompts your competitors rank for but you don't, and generates content designed to get cited by those models. The core loop is: find gaps, create content, track results. It's rated 4.7/5 on G2.

DarkVisitors (Known Agents)

DarkVisitors recently rebranded to Known Agents, which reflects a shift in positioning from "block the bots" to "understand and work with AI agents." The platform shows you the 40% of your website traffic that comes from AI crawlers, scrapers, and LLM assistants that most analytics tools miss entirely. It tracks bot sessions in real time, measures human referrals from ChatGPT and Perplexity, auto-updates your robots.txt, and provides an Agent Verification API for access control. It's been covered by Wired, Fortune, and The Information, mostly in the context of publishers trying to manage AI scraping.

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Side-by-side comparison

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Head-to-head feature deep-dive

AI visibility monitoring

Promptwatch tracks how your brand appears in responses from 10 AI models. You can set up specific prompts (e.g. "best project management software for remote teams"), see whether your brand is mentioned, and track that visibility score over time. It also shows you which competitors are getting cited for prompts you're not -- that's the Answer Gap Analysis feature.

Known Agents takes a different angle entirely. It doesn't track what AI models say about you; it tracks which AI crawlers visit your website. You see GPTBot, ClaudeBot, PerplexityBot, and dozens of others hitting your pages in real time. That's useful data, but it tells you about crawl activity, not about whether you're actually getting cited in AI responses.

Verdict: Promptwatch wins for anyone trying to understand and improve their AI search presence. Known Agents wins if you want to know who's crawling your site at the infrastructure level.

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Content optimization and creation

Promptwatch has a built-in AI writing agent that generates articles, listicles, and comparison pages grounded in citation data. It's not generic content -- it's built around the specific prompts and topics where AI models are looking for answers but not finding them on your site. The output is designed to get cited, not just to rank in traditional search.

Known Agents has no content creation or optimization features. It's a monitoring and control platform, not a content platform.

Verdict: Promptwatch, by a wide margin. Known Agents doesn't compete here.

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Bot traffic monitoring and control

This is where Known Agents is genuinely strong. It identifies every known AI agent, scraper, and bot hitting your site -- including ones that spoof legitimate crawlers like Googlebot. The automatic robots.txt feature is particularly useful for publishers who want to allow some bots (like Googlebot) while blocking others (like AI training scrapers) without manually maintaining a robots.txt file.

The Agent Verification API is a more advanced feature that lets you implement actual access control policies based on bot identity. That's something no GEO platform currently offers.

Promptwatch does show you AI crawler logs -- which pages AI crawlers visit, how often, and what errors they encounter. But it doesn't let you block bots or manage robots.txt. The crawler logs in Promptwatch are diagnostic (understand how AI engines discover your content) rather than operational (control what they can access).

Verdict: Known Agents wins clearly. If bot management and access control matter to you, it's the right tool.

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LLM referral tracking

Both tools track traffic coming from AI platforms, but they approach it differently.

Known Agents measures human referrals from ChatGPT, Claude, Perplexity, and similar platforms -- essentially, when someone reads an AI response and clicks through to your site, Known Agents captures that. It's similar to how you'd track referral traffic in Google Analytics, but specifically for AI sources.

Promptwatch does this too, via a code snippet, Google Search Console integration, or server log analysis. It goes a step further by connecting that traffic attribution back to specific prompts and pages -- so you can see not just "Perplexity sent 200 visitors this week" but "this specific prompt about pricing drove 80 of those visits, and it came from this page."

Verdict: Promptwatch's attribution is more granular and actionable. Known Agents' referral tracking is simpler but still useful as a standalone feature.

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Prompt intelligence and competitor analysis

Promptwatch has a full prompt intelligence layer: volume estimates, difficulty scores, and query fan-outs that show how one prompt branches into sub-queries. You can see exactly which prompts your competitors rank for, compare your visibility vs theirs across different AI models, and prioritize the prompts worth going after.

Known Agents has no competitor analysis or prompt-level data. It's focused on your own site's bot traffic, not on the broader competitive landscape in AI search.

Verdict: Promptwatch, no contest.

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Integrations and setup

Known Agents connects via WordPress, Cloudflare, AWS, Fastly, Shopify, Node.js, or any backend -- setup is described as taking seconds. It's clearly built with developers in mind.

Promptwatch integrates with Google Search Console and offers a Looker Studio integration and API. Setup is more marketing-team-oriented: you configure prompts, set up tracking, and start monitoring visibility scores.

Verdict: Known Agents is faster to set up for technical users. Promptwatch requires more configuration but delivers more depth.

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Pricing comparison

Known Agents doesn't publish its paid pricing publicly, which makes direct comparison difficult. The free tier is a genuine entry point -- you can see bot traffic without paying anything. For teams that need advanced analytics and detailed reports, you'd need to contact them or sign up to see the paid options.

Promptwatch's pricing is transparent and tiered clearly by the number of sites, prompts, and articles. At $99/month for a single site with 50 prompts, it's accessible for smaller teams, though the more useful features (crawler logs, city-level tracking) require the $249/month Professional plan.

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Pros and cons

Promptwatch

Pros:

• Full optimization loop: find gaps, generate content, track results
• Tracks 10+ AI models with prompt-level granularity
• Built-in AI content generation grounded in citation data
• 880M+ citations analyzed -- real data behind the recommendations
• Reddit and YouTube tracking for sources that influence AI recommendations
• ChatGPT Shopping tracking
• Competitor heatmaps and visibility scoring
• Multi-language, multi-region support
• Transparent pricing with a free trial

Cons:

• No free plan -- $99/month minimum
• No bot blocking or robots.txt management
• More setup required than a simple monitoring tool
• Can feel like a lot of features if you just want basic tracking

Known Agents (DarkVisitors)

Pros:

• Genuine free tier -- useful without paying
• Auto-updating robots.txt saves real time for publishers
• Agent Verification API for access control (unique capability)
• Detects bots spoofing legitimate crawlers
• Fast setup via Cloudflare, WordPress, Shopify, etc.
• Covers the defensive/protective side of AI crawling
• LLM referral tracking included

Cons:

• No prompt tracking or AI search visibility scoring
• No content gap analysis or content generation
• No competitor analysis
• Paid pricing not publicly disclosed
• Doesn't help you improve how AI models talk about your brand
• More useful for developers than marketing teams

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Who should pick which tool

Pick Promptwatch if:

• You're a marketing or SEO team trying to grow your brand's presence in AI search results
• You want to know which prompts your competitors rank for and you don't
• You need content that's specifically engineered to get cited by ChatGPT, Perplexity, or Claude
• You want to connect AI visibility to actual traffic and revenue
• You're managing multiple brands or clients (agency use case)

Pick Known Agents (DarkVisitors) if:

• You're a publisher or developer who wants to control which AI scrapers can access your content
• You need to auto-manage your robots.txt without manual updates
• You want to see raw bot traffic data and session-level detail on AI agent behavior
• Your primary concern is IP protection or server cost reduction from unwanted crawlers
• You want a free starting point before committing to a paid tool

Use both if:

• You want the full picture: Known Agents handles the defensive layer (who's crawling, block the bad actors), Promptwatch handles the growth layer (improve what AI models say about you, create content that ranks). They don't overlap much, so running both isn't redundant.

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Final verdict

These tools aren't really competing for the same buyer. Known Agents is a technical tool for site owners who want visibility into and control over bot traffic. Promptwatch is a marketing platform for teams who want to show up in AI search results and turn that visibility into revenue.

If someone asked me "which one should I use for GEO?" the answer is Promptwatch -- Known Agents doesn't do GEO. If someone asked "which one helps me block AI scrapers?" the answer is Known Agents -- Promptwatch doesn't do that either.

The only scenario where the choice is genuinely hard is if you're a small publisher on a tight budget who wants some AI visibility data but can't justify $99/month yet. In that case, Known Agents' free tier gets you bot traffic data and LLM referrals at no cost, which is a reasonable starting point. But once you're ready to actually optimize for AI search rather than just observe it, Promptwatch is the tool built for that job.