Doppler vs Known Agents (2026): which should you pick?

Pick Doppler if

• Fits if you want to see answers as different kinds of buyer would get them
• Works for Nuxt sites that want AI crawler and click data

Look elsewhere if

• Too light for real tracking, with 5 prompts on Starter and 15 on Growth
• Skip it if you need Gemini, Claude or Google AI Overviews, which aren't tracked
• Not for you if you can't add code to your site, as the analytics need the SDK
• Tight if you're on Starter: 1 persona, 1 domain and 1 seat
• Watch out: only yearly prices are shown, and the homepage names Google AI Mode, which no plan tracks

Pick Known Agents if

• Fits if you publish online and want to choose which AI crawlers can read your site
• Works for developers who need to verify AI agents in their own code through an API

Look elsewhere if

• Skip it if you want to know what ChatGPT says about your brand, as it doesn't check answers
• Tight if your site is busy: every API call and batch item counts, so budget about twice your human visits
• Not for you if you can't touch your server, CDN or WordPress setup, as there's no pasted script
• Watch out: the free plan stops at 100,000 events a month, with 1 project and only the basic features
• Watch out: custom features, a custom API and live support are on Enterprise, arranged through a demo

Doppler

• Prompt tracking on every plan covers only ChatGPT and Perplexity, though the homepage also names Google AI Mode.
• Prompt limits are small: 5 on Starter and 15 on Growth.
• The pricing table shows yearly-billed prices; the monthly-billed figures are not displayed.
• Analytics need the SDK installed: a ready-made integration exists for Nuxt, otherwise it is set up by hand.

Known Agents

• It measures bot visits and AI referrals to your site; it does not check what AI engines say about your brand in their answers.
• Events include every API call and each item in a batch; the vendor suggests budgeting about twice your monthly human visits.
• The free plan stops at its monthly event limit; paid plans get an email suggesting an upgrade when they run over.
• It needs a server, CDN or WordPress integration to collect data, rather than a script pasted into the page.

Doppler

Persona-based chat simulation

Frames each tracked prompt with a buyer persona and a location in one of 50+ countries, then records how the AI recommends your brand.

Chat replay

Shows a replica of the chat interface so you can see exactly where and how your brand appeared in the answer.

Competitor and source monitoring

Analyses the chats and the sources they cite to compare your visibility with competitors, refreshed daily.

AI impressions and clicks

An SDK on your site counts how often your brand appears in AI chat results for users and how often it is clicked.

AI crawler tracking

Records the latest date AI crawlers indexed each page and checks whether crawler visits are authentic.

Known Agents

Agent Analytics

Lists the crawlers, scrapers and AI agents visiting a site in real time, with traffic trends, pages visited, sessions, errors and robots.txt violations per agent.

AI chat referral tracking

Counts human visits that come from ChatGPT, Claude, Gemini, Copilot, Perplexity, DeepSeek and other AI chats, kept apart from bot traffic.

Automatic robots.txt

Serves a robots.txt that blocks or allows agents by category and updates itself as new bots are found; the WordPress plugin can block bots that ignore it.

Agent Identification API

Identifies and verifies the agent behind an incoming request from your own code, for setting access rules by verified identity.

Server-side collection

Data is sent from the server, CDN or backend rather than a browser script, so it still works when browser analytics are blocked.

Agent Directory

A public directory of thousands of agents and bots that says who runs each one, what it does and how to manage its access.

Doppler

• Starter$33

  per month for 5 prompts, billed yearly

  ChatGPT and Perplexity checked daily, 1 persona, 1 domain, 1 seat and 100,000 analytics events. The monthly-billed price is not shown.

• Growth$108

  per month for 15 prompts, billed yearly

  3 personas, 10 domains, 5 seats and 10 million analytics events, on the same two engines.

• EnterpriseCustom

  Unlimited prompts, personas, domains, seats and events, with SSO/SAML. Booked through a call.

Known Agents

• Free$0

  1 project and 100,000 events a month, with basic features. The vendor says this covers most websites.

• Startup$25

  per month for 1M events, billed yearly ($29 billed monthly)

  3 projects, 1 million events a month, the premium features and priority support.

• Growth$250

  per month for 10M events, billed yearly ($299 billed monthly)

  10 projects, 10 million events a month, the premium features and high-priority support.

• EnterpriseCustom

  Unlimited projects, usage-based events, custom features and API, and dedicated live support. Arranged through a demo.

Doppler

• Annual discount

  Two months free with yearly billing

  Doppler's pricing says paying yearly gives two months free, a $78 saving on Starter and $258 on Growth.

Known Agents

• Annual discount

  Save up to 16% with yearly billing

  Known Agents lists Startup at $25 a month billed yearly instead of $29 (14% less) and Growth at $250 instead of $299 (16% less).