How-to guide · strategy
How to earn the third-party mentions AI engines trust
Every 2026 citation study says the same thing: AI engines lean on Reddit, Wikipedia, YouTube, LinkedIn, editorial sites and review platforms, and under-cite brand-owned pages. You cannot publish your way out of that on your own site. Here is how to earn the mentions that count, honestly.
AI engines are conservative about sources. When hundreds of millions of citations were analysed in 2025 and 2026, a small set of domains dominated: Reddit, Wikipedia, YouTube, LinkedIn, established publishers and review sites. One consolidated index put the top 15 domains at around 68 percent of all citations. Brand websites appear, but far less than their owners expect.
The practical consequence: publishing more on your own site has diminishing returns until other trusted places also say who you are and what you do. This guide is the earned side of the equation, built for a business that does not have a PR agency.
Step 1: Find out which third parties your engines already cite
Run your prompt set (see our measurement guide) and record every non-brand domain cited: local news sites, directories, review platforms, YouTube channels, subreddits, listicles. That list is your target map. Those pages are already trusted for your questions; being on them is the shortest route.
Step 2: Publish on LinkedIn, not just about LinkedIn
A complete company page is table stakes. The movement in ChatGPT citations came from published posts and long-form LinkedIn articles by named people. Have the founder and one or two senior staff publish an article a month answering a real customer question, plus regular posts. Use the canonical company description in every profile.
Step 3: Put explainer videos on YouTube
YouTube became the most-cited social source across AI engines in early 2026. Record five to ten short videos, each answering one customer question in plain language, with an accurate title, a written description that repeats the answer, and a transcript. Production quality matters far less than a clear answer. Embed them on the matching page of your site so the two sources agree.
Step 4: Participate honestly on Reddit and sector forums
Find the two or three communities where your customers ask questions. Answer thoroughly, with your name and role in your profile, and link only when the link is the answer. Do not seed questions, do not run sock puppets, do not pay for posts. Perplexity in particular draws heavily on Reddit; a substantive answer from a real expert can be cited for years.
Step 5: Build reviews where engines read them
Google reviews for everyone. Then the platform your sector trusts: Trustpilot for consumer services, Checkatrade or TrustATrader for trades, G2 or Capterra for software, Clutch for agencies, Yelp for hospitality and local services (Yelp data now feeds ChatGPT's local answers under a 2026 licensing agreement). Detailed, recent reviews that mention the service and the place are the ones engines can match to questions.
Step 6: Get into local and trade press
A quote in the local paper, a case study in a trade magazine, a mention on the Chamber of Commerce site, a supplier's partner page. Pitch stories with a number or a first ("first practice in Eastbourne to offer X", "surveyed 200 local businesses about Y"). Supply your canonical description and a named spokesperson. One editorial mention outweighs a month of your own blog posts.
Step 7: Appear on podcasts and in guest content
Sector podcasts publish transcripts and show notes that engines read. Guest articles on partner and association sites count as independent mentions if they carry your name, role and company. Aim for relevance over reach.
Step 8: Get onto the lists that already rank
The "best X in Y" pages your engines cite (Step 1) are edited by people. Email them with a concise case for inclusion, links to your reviews and proof, and the canonical description. Many lists are updated annually and welcome well-evidenced additions.
Step 9: Publish something others will cite
Original data is the earned-media multiplier: a survey of your customers, price benchmarks from your own quotes, a local market snapshot. Journalists, bloggers and forum posters cite numbers, and every citation of your data is a mention of your name. One small study a year is enough for most businesses.
How to know it worked
Your prompt tracking shows more third-party pages that mention you appearing as citations, then your own pages joining them. Engines describe you consistently (the mentions agree). Share of answer rises across engines rather than in one.
Common mistakes
- Buying mentions, reviews or Reddit posts. It is detectable and it is a risk to the whole footprint.
- Different descriptions of the company in every guest bio.
- Treating YouTube as a marketing channel needing polish rather than a place to answer questions plainly.
- Chasing national press when the local paper and the trade body are the sources your engines already cite.
Frequently asked questions
Which third-party sites do AI engines cite most?
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Across engines in 2026: Reddit, Wikipedia, YouTube, LinkedIn, Forbes and other established editorial sites, and review platforms such as Yelp, Trustpilot, G2 and Capterra. Within ChatGPT specifically, LinkedIn rose to among the top five cited domains by early 2026, while YouTube overtook Reddit as the most-cited social source across engines in January 2026.
Is posting about my business on Reddit allowed?
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Participating honestly is. Answer questions in your area of expertise with your name and role visible, follow each subreddit's rules on self-promotion, and link only when it helps. Creating fake accounts, seeding questions you then answer, or paying for mentions is astroturfing; Reddit removes it and Google's guidance warns that inauthentic mentions are a risk.
How many mentions do I need?
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There is no threshold. Several 2026 analyses found brands with only owned content had a fraction of the AI coverage of brands with earned coverage, with one putting the gap at roughly 18 percent versus 58 percent. Start with five to ten independent, consistent, relevant mentions and build from there.
Sources
George McKenna
Co-founder, Emerging Digital Partners
George co-founded Emerging Digital Partners in Eastbourne and built the AI Search & SEO Audit you are on now. He spent around twenty years in the UK IT channel before that, most recently running solution sales teams, and now splits his time between building websites and search tooling for EDP clients and taking AI products to regulated industries through the ETT Group, where he is Chairman and CTO. He writes about answer engine optimisation the way he practises it: test it, measure it, fix what is actually broken.
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