Best Tools to Find Which Sources AI Engines Cite in Your Niche

Your PR team keeps asking the same question, and it is a good one. Where do we pitch to actually show up in AI answers? If you have been guessing, take a breath. You do not need to guess anymore. There are tools that tell you exactly which sources does AI cite when buyers ask about your category, right down to the publisher and the page.

That is the shift worth understanding. Getting named in a ChatGPT or Perplexity answer usually is not about your own site alone. It is about the third-party domains those engines trust and pull from. Once you can see that list, your outreach stops being a hopeful spray and starts being a targeted plan. Pitch the review sites, listicles, and expert roundups the models already lean on, and you earn your way into the answer.

This roundup compares five tools built for exactly that job: DeepSmith, Profound, Otterly.AI, Scrunch AI, and Ahrefs Brand Radar. Let's find the one that fits your team.

How we chose these tools

A tool earns a spot here only if it answers one question well: which sources does AI cite in your niche, right down to the domain and the page? It has to show source-level and domain-level data, not just whether your brand got mentioned. Here are the four things we judged every tool on, so you can weigh them against your own situation.

1. Source and domain citation analytics. Which third-party URLs and publishers do AI engines cite for prompts in your category? This is the core of ai citation source analysis, and it is non-negotiable for a PR-driven team.
2. AI engine coverage. Which engines does the tool actually track? ChatGPT only, or ChatGPT plus Perplexity, Gemini, Copilot, and Google AI Overviews?
3. Prompt-level attribution. Can you map a cited source back to the specific buyer question that triggered it? That is what turns raw data into a pitch list.
4. Competitive benchmarking. Who else wins citations on the same prompts, so you know where you are behind?

All five tools clear the first bar. They differ on coverage, pricing, and how far each one carries you past the dashboard into actually earning the placement. One more filter matters for your workflow: how easily the tool hands its findings to your outreach and content process.

Quick comparison

Now let's walk through each one, starting with the tool that closes the loop from discovery to placement.

1. DeepSmith

Best for: marketing and content teams that want to see which sources AI cites and then act on that list without switching tools, on a plan that starts under $100 a month.

Here is the reason DeepSmith earns the top slot. Every other tool on this list stops at the data. It tells you which publishers AI trusts, and then you carry that list somewhere else to do something about it. DeepSmith is the only one that keeps you in a single workspace from the moment you spot a citation gap to the moment you ship the content that closes it.

That matters most for the person this guide is written for: a marketing lead who wants a system, not another dashboard to check on Mondays. You are already stretched. The last thing you need is a fifth browser tab.

On the analytics side, DeepSmith's AI Visibility module tracks mention rate, citation rate, share of voice, and visibility trend across the engines it covers. The Overview shows a competitor leaderboard and the sources AI cites most for your tracked prompts, which is your starting map for ai citation domain research. The Pages view shows which of your own URLs get cited and the prompts driving them. The Competitors view surfaces the competitor pages winning answers on your prompts, and which third-party domains those pages lean on. That last one is gold for aeo digital pr targeting, because a competitor's earned coverage is a preview of the outlets you can pitch too.

Then comes the part no other tool here offers. Once you know which publishers to target and which topics AI keeps citing, Content Studio turns that intelligence into publish-ready articles, complete with brand voice, internal links, and metadata, grounded in your stored context through Deep IQ. Autowrite can even ship on a schedule so the pipeline keeps moving during your busiest weeks. You go from "here is who AI trusts" to "here is the content earning our place next to them" without leaving the platform.

Key features for source discovery:

• The sources AI cites most, listed per tracked prompt, with mention rate, citation rate, and share of voice.
• Pages view for your own cited URLs and the prompts behind each citation.
• Competitors view showing which competitor pages win answers and the domains they cite.
• A production layer that acts on what you find, from idea to scheduled, published article.

Engines covered: ChatGPT, Gemini, Perplexity, Claude, and Google AI Mode. Coverage rises by tier. Pro tracks ChatGPT, Grow adds Perplexity, Scale adds Gemini, and Enterprise covers all five.

Pricing: Pro is $99 a month, or $80 billed annually, with 20 articles and 50 tracked prompts. Grow, the most popular plan, is $199 a month, or $160 annually, with 40 articles and 100 prompts. Scale is $399 a month, or $299 annually, with 90 articles and 200 prompts. Enterprise is custom. There is a 7-day free trial, no long-term contracts, and no cancellation fees.

One honest limitation: the picture you see is shaped by the prompts you track. On the Pro and Grow tiers, discovering who AI cites for category queries you have not defined yet works best when you build a thoughtful prompt set first. The prompts are your lens. Spend a little time defining them well, and the source list gets far more useful. That is by design, and it is worth knowing going in.

If you want both the discovery and the doing in one place, start a DeepSmith free trial and see your cited-source map on real data before you pay a cent.

2. Profound

Best for: larger PR and content teams that want the most granular source categorization in the category and have the budget for enterprise-grade tooling.

If your whole job is digital PR and you live and breathe earned media, Profound will feel like it was built for you. Its Citations feature, inside Answer Engine Insights, is one of the deepest source-discovery surfaces here.

The standout is categorization. Profound's Citation Category Filters classify every cited source as Owned, Competitor, Earned Media, PR Wire, Social, or Institution. That means you can isolate exactly the earned-media outlets and wire placements AI engines are picking up, which is precisely the list a PR team wants when they sit down to plan pitches. Citation Share Analysis then compares your citation share against competitors by platform, topic, and prompt. And Outreach Intelligence surfaces the top-cited publishers and authors driving citations in your space, including names and domains you have not engaged yet.

Key features for source discovery:

• Citation Category Filters to separate earned media and PR wire from owned and competitor sources.
• Citation Share Analysis sliced by platform, topic, and prompt.
• Outreach Intelligence naming the publishers and authors to pitch.

Engines covered: ChatGPT, Perplexity, Claude, Gemini, Grok, Microsoft Copilot, Meta AI, DeepSeek, and Google AI Overviews. Starter tracks ChatGPT only. Growth adds Perplexity and Google AI Overviews. Enterprise supports up to 10 engines.

Pricing: Starter is $99 a month for ChatGPT tracking and 50 prompts. Growth is $399 a month billed annually, or $499 monthly, and covers three engines with 100 prompts plus agent features. Enterprise is custom, with up to 10 engines and SSO, SAML, and SOC2 compliance.

One honest limitation: Starter is ChatGPT only. Multi-engine source discovery starts at Growth, which is $399 a month. If you want the deep categorization on more than one engine but you are on a lean budget, you will hit that tier wall fast.

3. Otterly.AI

Best for: solo marketers and small in-house teams that want a genuine, low-cost entry into finding which publishers AI cites.

Not ready to commit hundreds a month? Start here. Otterly.AI is the lowest-cost tool in this roundup and the simplest to run, which makes it a friendly first step into ai citation source analysis.

Its Citation Analytics dashboard includes Link Citations Analysis, which lists every URL and domain AI engines cite in answers to your tracked prompts. The Domain Ranking view shows how each cited domain performs across your prompt set, so you can quickly find publishers AI cites again and again for the same buyer questions. It also supports more than 50 markets, which helps if your PR team pitches regional outlets and wants to compare the same prompt across countries.

Key features for source discovery:

• Link Citations Analysis listing every cited URL and domain per prompt.
• Domain Ranking to see which sources get cited most across your prompts.
• Multi-country tracking across 50-plus markets for regional outreach.

Engines covered: the base plan covers ChatGPT, Google AI Overviews, Perplexity, and Microsoft Copilot. Claude, Google AI Mode, and Gemini are available as paid add-ons.

Pricing: Lite is $29 a month, or $25 billed annually, with 15 search prompts and unlimited team members. Standard is $189 a month, or $160 annually, with 100 prompts and API plus MCP access. Premium is $489 a month, or $422 annually, with 400 prompts and personal onboarding. Annual billing shaves off roughly 14 to 15 percent.

One honest limitation: the Lite prompt cap of 15 is the smallest here, and three engines sit behind paid add-ons. Otterly is best for narrow, focused tracking rather than full-funnel coverage across every engine.

4. Scrunch AI

Best for: mid-market and enterprise teams that need broad LLM coverage plus an agent-experience layer, with a dedicated account team for rollout.

Scrunch positions itself as an AI customer experience platform, and its Citations tab is a genuinely strong place to do ai citation domain research. If breadth of engines matters to you, this is where Scrunch shines.

The Top Cited Domains view lists the third-party domains most frequently cited across your prompt set, which is the exact screen a PR team would open to pick outlets to pitch. Every cited source is tagged by owner (you, a competitor, a third-party publisher, a PR wire) and scored with an Influence Score, so you can sort by impact instead of guessing. From any domain you can drill into the specific URLs cited, the prompts that triggered them, and the week-over-week citation share trend. Filters run deep: owner, citation topic, prompt topic, persona, funnel stage, platform, branded versus non-branded, country, and language.

Key features for source discovery:

• Top Cited Domains view for a ranked outreach target list.
• Owner tagging plus an Influence Score to prioritize by impact.
• Drill-down from any domain into cited URLs, triggering prompts, and trend.

Engines covered: the Core plan covers ChatGPT, Perplexity, Google AI Overviews, and Microsoft Copilot. Enterprise adds Claude, Gemini, Meta AI, Google AI Mode, and Grok, for nine LLMs total.

Pricing: Core is $250 a month, with 125 unique prompts, 5 site audits a month, 1 brand workspace, and 5 user licenses. Enterprise is custom, adding the agent experience platform, unlimited workspaces and licenses, nine LLMs, SSO, and a dedicated account team.

One honest limitation: the published Core plan caps at 125 prompts and 4 engines. Full LLM coverage and the agent-experience layer require Enterprise, which is sales-led with no public price. If broad engine coverage is your reason for buying, budget for the Enterprise conversation.

5. Ahrefs Brand Radar

Best for: teams already using Ahrefs for SEO who want AI visibility data in the same dashboard, especially where Google AI Overviews is the main surface.

If your team already runs on Ahrefs, adding Brand Radar keeps everything in one familiar place. It draws on Ahrefs' database of more than 271 million organic prompts to research how any brand shows up across AI search, plus a custom-prompt tracker for your own queries.

The AI Citations report surfaces the third-party URLs AI engines cite when answering category prompts, which is the core screen for this job. Share of Voice covers both mentions and citations. There is also a Web Visibility sidebar that tracks your brand across SEO, YouTube, Reddit, and TikTok, handy if your PR work spans earned media on several surfaces.

Key features for source discovery:

• AI Citations report listing the third-party URLs engines cite for category prompts.
• Share of Voice for both mentions and citations, with competitor benchmarking.
• Web Visibility sidebar spanning SEO, YouTube, Reddit, and TikTok.

Engines covered: Google AI Overviews, ChatGPT, Perplexity, Gemini, Copilot, and Grok. Per Ahrefs' own documentation, Grok collection was paused in mid-2026 due to policy changes.

Pricing: Brand Radar is an add-on on top of a required Ahrefs subscription. The base plan starts at $129 a month for Lite, and the Brand Radar add-on runs $199 a month per AI engine. That puts the effective minimum around $328 a month for a single engine, and full coverage across all six engines can exceed $1,300 a month. Because Ahrefs' pricing is in a noted transition, re-check the current numbers on the day you buy.

One honest limitation: the per-engine pricing adds up fast. Full coverage is materially more expensive than the flat-fee tools here, so Brand Radar makes the most sense when you are already paying for Ahrefs and Google AI Overviews is your priority surface.

How PR teams actually use these tools

Whichever tool you pick, the workflow is the same. Seeing it laid out makes the value concrete.

1. Define your tracked prompts by buyer stage: category "best tools" queries, competitor comparisons, and problem-solving questions.
2. Run those prompts across the engines your tool covers.
3. Read the cited-source list at the domain level. Which publishers, which listicles, which review sites keep showing up?
4. Score the sources by relevance and influence. Many tools weight this for you with an influence or citation-share metric.
5. Build an outreach list from the highest-cited, most-relevant domains.
6. Pitch stories, contribute expert quotes, and pursue inclusion in the exact listicles and reviews the engines lean on.
7. Re-run the prompts after your placement goes live to confirm the engine picked it up.

Here is the practical action for this week. Pick five prompts your buyers actually ask, run them, and write down the top ten domains that appear. That short list is your first real aeo digital pr targeting plan, and you can build it in an afternoon.

How to choose the right tool for you

Feeling closer to a decision? Good. Let's make it simple based on where you sit.

Choose DeepSmith if you want to find publishers AI cites in your niche and then produce the content that earns your place beside them, all in one workspace, starting under $100 a month. It is the strongest fit when you are a lean team that cannot afford to bolt discovery onto a separate writing process.

Choose Profound if digital PR is your core motion, you need the deepest earned-media and PR-wire categorization in the category, and you have the budget for its higher tiers.

Choose Scrunch AI if broad engine coverage and an agent-experience layer matter most, and you are a mid-market or enterprise team ready for a sales-led rollout with a dedicated account team.

Choose Otterly.AI if you are a solo marketer or small team who wants a genuine, low-cost start, and focused tracking on a few engines is enough for now.

Choose Ahrefs Brand Radar if you already run on Ahrefs for SEO, want AI citation data in the same dashboard, and Google AI Overviews is your priority surface.

There is no wrong starting point. The worst move is staying blind to who AI cites while competitors quietly earn those placements. Pick one, run your first prompts this week, and you are already ahead of most teams.

If you want the version that shows you the sources and helps you act on them, try DeepSmith free for 7 days. See your cited-source map and produce your first placement-ready article in the same afternoon.