Off-site authority audit: mapping where AI can't find your brand

An off-site authority audit is a systematic inventory of every place, outside your own website, where AI models pick up authority signals about your brand, with a score for each place showing how well you’re represented there. The goal isn’t to count how many mentions you have, but to find the gaps: the relevant sources, profiles and citations where your brand is missing or wrongly presented, and to prioritize them. In this article you’ll read which sources to map, how to score each gap and how to decide where to start.

This audit is the off-site counterpart of the broader complete GEO audit, which also takes in your own pages and technical setup. If you want the framework first, read what GEO is. Here we zoom in on one thing: everything that appears about your brand on someone else’s domain.

What is an off-site authority audit?

An off-site authority audit is a structured review of the external signals that determine whether AI recognizes your brand as credible and recommends it. Where a classic link audit counts who links to you, this audit looks broader: at mentions with and without a link, at the accuracy and consistency of your profiles, and at the sources AI assistants actually cite.

The difference lies in what you measure. AI models learn, from the text around your brand name, who you are and where you excel. An unclickable mention in a respected trade article can carry more weight for such a model than a technical backlink on a weak page. That’s why you inventory not just links, but every context in which your brand appears. The background to this is in why brand mentions beat backlinks for AI authority.

The outcome isn’t a list of observations but a scoring matrix: per source and per channel type, you see where you’re strong, where you’re missing and where your info is outdated or inconsistent.

Why is off-site authority crucial for AI visibility?

Off-site authority is crucial because AI answers are largely fed by sources that aren’t yours. When a model backs up an answer with external pages, a process called grounding, the quality and consistency of those external sources help decide whether your brand comes into view.

Important detail: the big platforms draw on different source ecosystems. ChatGPT leans heavily on encyclopedic and editorial sources, Perplexity pulls strikingly much from community forums like Reddit, and Google’s AI overviews bring in video and multimedia alongside classic web pages. The overlap between what these platforms cite is limited. That means a gap in one channel type translates into invisibility on a specific platform, not everywhere at once.

For B2B, that’s good news. You don’t have to fire a scattershot, you have to be present in the handful of sources that both your buyers and the models take seriously. The audit makes visible which ones those are.

Which off-site sources do you map?

You map every external place where an authority signal about your brand can arise, grouped by channel type. Working by type prevents you from fixating on one channel while another stays completely empty.

• Directories and company profiles. Industry guides, Google Business Profile, LinkedIn company page and sector-specific registries. Here it’s all about the accuracy and consistency of your name, address, description and activity.
• Review sites and marketplaces. Platforms where buyers compare suppliers. Missing or empty profiles are a classic gap here, especially in B2B software and services.
• Trade media and editorial sources. Industry publications, newsletters and knowledge platforms your audience reads. These are the mentions with the highest authority weight.
• Community and forums. Reddit, specialist communities and Q&A sites. These weigh heavily with platforms that lean on community content. Read how Reddit makes your brand visible in ChatGPT.
• Knowledge sources and structured data. Encyclopedic pages and public data sources from which models learn entities. Here what counts is whether your brand exists as a recognizable entity, not whether there’s a link.

Go through your real competitors per type. The fastest way to find a gap is to see where a rival is correctly mentioned and you aren’t. A broader competitive analysis of your brand helps you map that positioning sharply.

How do you score each gap?

You score each source on a fixed set of criteria, so that dissimilar mentions become comparable. I use four axes, each on a simple scale of 0 to 3:

1. Relevance of the source. Do your buyers read this source, and does it cover your topic? A mention in an irrelevant directory scores low, even if it sits there neatly.
2. Source authority. How reliable do models estimate this source to be? Established trade media and frequently cited platforms score higher than an unknown blog.
3. Presence. Are you there, and how complete is it? No profile is a 0, an empty profile a 1, a complete and current profile a 3.
4. Consistency. Do your name, description and positioning match your other channels? Contradictory info confuses models and undermines your whole entity. Dig into this in entity consistency for AI visibility.

Add up the axes into a score per source. High source authority and relevance combined with low presence is exactly where your biggest opportunity sits: an important source where you don’t yet appear or appear poorly. Where possible, add a fifth note for sentiment, because being named as the party that solves a problem is more valuable than a neutral mention.

To make the measurement repeatable and monitor where you’re mentioned, AI visibility tools and the core indicators of AI visibility are a big help.

How do you prioritize the gaps?

You prioritize by placing each gap in a matrix of impact against effort. Impact you derive from your scores: a gap in a source with high relevance and authority weighs heavily. Effort you estimate on time, cost and feasibility.

That gives four quadrants:

• Quick wins (high impact, little work). Filling in missing or empty profiles, correcting inconsistent company data, claiming claimable directory pages. Start here, you often solve this in days.
• Big projects (high impact, lots of work). Getting mentioned in leading trade media or building a strong presence in relevant communities. This takes months and consistency.
• Nice-to-haves (low impact, little work). Do these when you have time to spare.
• Let go (low impact, lots of work). Paid placements on sources your audience doesn’t read. Honest advice: here you lose budget without results.

Pour the outcome into a short roadmap with phases and set a baseline on the audit date. That way you can demonstrate in a quarter that the gaps have effectively been closed, instead of steering by feel. And always steer on the result that counts: whether the right buyers find you again and your pipeline grows, not on the sheer number of mentions.

Frequently asked questions

What’s the difference with an ordinary backlink audit?

A backlink audit counts and weighs links to your site. An off-site authority audit looks broader: also mentions without a link, the accuracy of your profiles and the consistency of your brand data across channels. For AI visibility, that context often weighs more heavily than the link itself.

How long does such an audit take?

A first off-site audit you typically carry out in one to two weeks: a few days to inventory and score the sources by channel type, and the rest for competitive comparison and drawing up your priority list. The quick wins you can then often pick up right away.

Do I need expensive tools?

No. You can do the inventory and scoring entirely by hand in a spreadsheet. Tools mainly speed up monitoring and repeated measurement over time. Start by hand, so you get a feel for what your data looks like, and only automate the parts you redo every month.

How often do I repeat this audit?

The full inventory you repeat once or twice a year. The core signals, such as where you’re mentioned and whether profiles stay current, you’re better off checking every quarter. That way you see trends emerge without being misled by one chance measurement.

The short summary

An off-site authority audit objectively reveals where AI doesn’t find your brand today. You inventory every external source by channel type, score it on relevance, authority, presence and consistency, and prioritize the gaps with an impact-versus-effort matrix. The result is a roadmap that starts with the mentions that both your buyers and the models take seriously, and that you can follow up over time. Want to tackle this together with our visibility in AI search engines and find out where your biggest gaps are?

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