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Yes, backlinks still matter, but they are no longer a complete way to judge whether a brand will appear in AI-generated search answers. Ahrefs’ analysis of 75,000 established brands found that branded web mentions had a stronger association with visibility in Google AI Overviews than raw backlink count (correlation 0.664 versus 0.218). That does not prove that an extra mention causes an AI citation, or that links have become obsolete. The study measured correlations in a selected group of established sites, while Google’s own guidance says the normal fundamentals of SEO still apply to AI Overviews and AI Mode. The practical change is to measure legitimate discussion, context, and search eligibility alongside links—not to replace sound SEO with a hunt for unlinked mentions.
Do you still need backlinks in the AI era?
Backlinks remain useful signals of authority, discovery, and referral traffic, and the Ahrefs data did not show a zero relationship for any of the major link metrics. However, the number of times other sites discuss a brand was more closely associated with Google AI Overview visibility than the number of links pointing to its pages. A sensible strategy therefore combines earned, relevant links with broader brand presence and pages that meet Google’s ordinary search requirements.
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The distinction matters because a backlink is a link that can pass users and context from a referring page, while a web mention can name a company, product, or site without linking. AI systems may encounter both kinds of evidence, but the study did not test whether a particular mention or link directly caused an answer to cite a brand.
What exactly did the 75,000-brand study measure?
Louise Linehan, with contributor Xibeijia Guan, published the Ahrefs analysis on May 26, 2025. It used Spearman correlations to compare brand visibility in Google AI Overviews with SEO and brand-demand factors. The unit of analysis was a brand’s visibility in AI Overview responses, not rankings in every search engine or citations in every chatbot.
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- Population: domains with a Domain Rating above 40 and a highest-volume keyword receiving at least 800 monthly searches.
- Scale: millions of AI Overview responses were analyzed across the selected brands.
- Exclusion: about 26% of the brands had no AI Overview mentions and were left out of the remaining correlation analysis. The correlations therefore describe brands that had at least one measured mention, not all businesses.
- Reported reach: brands in the highest web-mention group received up to 10 times as many AI Overview mentions as brands in the next-closest quartile, according to Ahrefs.
Because the sample favored already-established domains, a new local business, specialist publisher, or small ecommerce site should not assume that the reported coefficients predict its own results. The study also covered Google AI Overviews specifically; it did not establish the same relationships for other AI assistants or answer formats.
Which factors had the strongest association with AI Overview visibility?
The following figures are Spearman correlation coefficients reported by Ahrefs. They indicate how two measurements moved together in this sample; they are not percentages, ranking weights, or a recipe for earning a citation.
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|---|---|---|
| Branded web mentions | 0.664 | Strongest association in the reported set; includes discussions that may or may not contain a link. |
| Branded anchors | 0.527 | Text used in links that names the brand was strongly associated with visibility. |
| Branded search volume | 0.392 | Existing demand for the brand tracked with more AI Overview visibility. |
| Domain Rating | 0.326 | Ahrefs’ authority metric had a positive, but weaker, association than mentions and branded anchors. |
| Branded organic traffic | 0.274 | Traffic from brand-related organic searches moved with visibility. |
| Referring domains | 0.295 | The number of distinct sites linking to a domain was positively associated. |
| Number of backlinks | 0.218 | Raw link volume had a positive association, but the weakest of the main link-count measures listed here. |
| Branded ad traffic | 0.216 | Paid traffic on brand searches had a small positive association. |
| Branded ad cost | 0.215 | Spend on branded advertising also had a small positive association. |
A coefficient of 0.664 does not mean mentions account for 66.4% of visibility, and 0.218 does not mean backlinks contribute 21.8%. Spearman correlation measures the ordering and direction of two variables. It cannot tell you how many links or mentions are needed, whether one caused the other, or whether the relationship holds outside the measured population.
Are brand mentions more important than backlinks for AI search?
In this dataset, mentions had the stronger observed association, but “more important” is too broad a conclusion. A mention can be prominent, accurate, and context-rich, or it can be a passing reference on an irrelevant page. A backlink can be editorially valuable and send qualified visitors, or it can be an artificial link that creates spam risk. The study did not score the usefulness of each mention or isolate the effect of earning one additional link.
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What counts as a branded mention?
It is a reference to the brand or entity in a webpage’s visible text. The reference may include a hyperlink, a plain-text name, a review, a news item, a comparison, a community discussion, or a citation in a resource list. The reported 0.664 figure combines these kinds of web discussion as Ahrefs measured them; it should not be interpreted as proof that every unlinked mention is read or trusted by Google’s systems.
Why branded anchor text still matters
Branded anchors—the clickable words used in links—had a 0.527 correlation, substantially above raw backlink count. That result is consistent with the idea that the surrounding words and the identity of the entity can provide more useful context than a large undifferentiated link total. It does not justify forcing exact-match or branded anchors into placements where they are not natural.
Why can’t the study prove that links or mentions cause citations?
Brand visibility is entangled with many advantages that can produce both more coverage and more AI appearances. A well-known company may have stronger products, more demand, better documentation, more direct searches, larger public relations activity, and a wider set of publishers discussing it. Those factors can raise both the number of mentions and the chance that an AI Overview finds a useful source.
- The sample was filtered to relatively strong domains and high-demand keywords, so it is not a random sample of the web.
- The 26% with no measured AI Overview mention were excluded from the correlation stage, which changes the population being compared.
- The analysis used one Google feature at one point in time. AI Overview triggering, source selection, and presentation can change by query, country, language, and product update.
- It did not run a controlled experiment in which comparable brands gained one extra link or mention while everything else stayed constant.
- It did not establish a universal relationship for AI assistants outside Google Search.
Ahrefs explicitly summarizes the central caution as “correlation ≠ causation.” Treat the coefficients as evidence about what co-occurred in the sample, not as a guaranteed ranking formula or return-on-investment forecast.
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What does Google say about SEO for AI Overviews and AI Mode?
Google Search Central’s current guidance says, “The best practices for SEO remain relevant for AI features in Google Search (such as AI Overviews and AI Mode).” Google says there are no additional technical requirements and no special structured data reserved for these features.
For a page to be eligible as a supporting link, Google says it must be indexed and eligible to appear with a snippet in ordinary Search. Eligibility is not a promise that Google will crawl, index, retrieve, or display the page for a particular answer. Google recommends the familiar fundamentals:
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- Make important pages findable through useful internal links.
- Keep the information you want systems to understand in accessible, visible text rather than only in images or inaccessible scripts.
- Follow people-first content guidance and provide original value for the visitor.
Search Console reports traffic from AI features within overall Web search data rather than as a separate, complete AI Overview channel. That means a site owner should combine Search Console with page-level analytics and a carefully defined visibility-monitoring process instead of expecting one official report to list every AI appearance.
How should you combine link building with brand-presence work?
Use links and mentions as complementary outcomes of useful, newsworthy work. The following process keeps the measurable benefits of conventional SEO while testing whether your brand is being discussed in contexts that AI systems and human readers can understand.
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- Establish a baseline. Record your indexed pages, referring domains, branded anchors, branded organic impressions, and the pages that already attract citations or references. Separate brand searches from non-brand searches so rising awareness is not mistaken for a technical improvement.
- Map the topics and entities you need to be known for. List the products, services, people, locations, and problems that define your business. Check whether third-party pages describe those entities accurately and link to the most useful supporting page when a link is warranted.
- Create source-worthy material. Publish clear documentation, original data, explainers, demonstrations, or practical tools that another writer can cite. Make key claims, definitions, dates, and limitations visible in HTML text.
- Earn relevant coverage. Offer reporters, professional communities, and publishers genuinely useful information. A mention is valuable when the referring page has a real audience and supplies context; a link is valuable when readers can follow it to a relevant resource.
- Improve the destination page. Keep the page crawlable, internally linked, current, and specific enough to answer the question for which it might be retrieved. Do not add schema simply because the page is intended for an AI feature; Google says no special AI Overview markup is required.
- Measure outcomes separately. Track referring domains and qualified referral visits, brand mentions and their sentiment or context, branded Search demand, and appearances in a defined set of AI Overview queries. Compare trends over time, but do not label a change causal unless you have a credible experiment.
Should you focus on link counts or broader brand presence?
Neither approach wins on causal effectiveness in the Ahrefs analysis. Compare them by the quality of the audience and context they create, the conventional Search value they may provide, and the risk of manipulation.
| Decision factor | Link-count-led approach | Broader brand-presence approach |
|---|---|---|
| Observed relationship in the study | Raw backlinks: 0.218; referring domains: 0.295; Domain Rating: 0.326. | Branded web mentions: 0.664; branded anchors: 0.527. |
| What to evaluate | Relevance of the linking page, editorial reason for the link, destination usefulness, and qualified referral traffic. | Accuracy of the description, topical context, prominence, audience quality, and whether the mention is associated with the right entity. |
| Benefit beyond AI features | Discovery, referral visits, authority signals, and conventional Search visibility when links are earned naturally. | Brand recognition, direct demand, clearer entity context, public understanding, and potential referral traffic when a link is included. |
| Main risk | Buying, exchanging, hiding, or mass-producing links can violate spam policies and waste resources. | Chasing volume can produce irrelevant, inaccurate, or low-quality coverage that does not help readers. |
| Measurement quality | Backlinks and referring domains are comparatively easy to count, but count alone says little about value. | Mentions require classification for relevance, sentiment, prominence, and whether the text identifies the correct brand. |
Use the table as a planning framework, not as a claim that the right-hand column replaces the left. A strong editorial mention may include a link, and a strong link normally appears because the surrounding mention is useful.
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Which backlink and mention tactics can create problems?
Google’s spam policies apply to attempts to manipulate Search systems, including content intended to influence generative answers. The policies specifically describe hidden link abuse as prohibited. Concealing links with styling, placing irrelevant links solely to pass signals, or manufacturing large volumes of artificial coverage can expose a site to ranking losses or removal from results.
- Prefer an editorial reason for every link: it should help the reader reach evidence, definitions, documentation, or a related service.
- Do not ask publishers to insert a keyword-heavy anchor that misrepresents the destination.
- Do not treat a paid placement, sponsorship, or exchange as independent editorial endorsement.
- Keep outreach focused on pages and audiences where the information is genuinely relevant.
- If a mention is inaccurate, request a correction for users and entity clarity—not a guaranteed AI citation.
A legitimate digital-public-relations campaign can earn both links and unlinked discussion, but no service or software purchase guarantees inclusion in an AI answer.
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What should smaller or newer sites conclude from the 75,000-brand sample?
Do not copy the reported thresholds as if they were entry requirements. The study began with domains above Domain Rating 40 and keywords with at least 800 monthly searches, so it tells you more about established demand than about a new site’s first months. A smaller site can still follow the underlying principles: publish information others can verify, make it technically accessible, earn coverage in its actual niche, and measure whether the right people find it.
For a local or specialized business, a handful of authoritative, context-rich mentions may be more useful than a large number of unrelated links. Evaluate the referring page’s audience and accuracy before celebrating a count, and remember that having no AI Overview appearance may simply reflect query coverage or feature eligibility rather than a penalty.
How can you turn the findings into a 90-day plan?
Days 1–30: audit and define
- Export current referring domains, backlinks, branded anchors, and the pages receiving referral visits.
- Build a list of important brand terms, product names, experts, and customer questions.
- Check indexability, internal links, visible text, and snippet eligibility for the pages that answer those questions.
- Choose a fixed set of representative queries for manual AI Overview checks, noting country, language, device, and date.
Days 31–60: publish and earn
- Improve or create the pages that provide primary explanations, evidence, definitions, and limitations.
- Offer genuinely useful data or expert commentary to publishers and communities already serving your audience.
- Record every resulting mention, whether linked or unlinked, and classify its topic, accuracy, prominence, and audience.
Days 61–90: compare and refine
- Compare changes in qualified referral visits, branded Search demand, mention quality, referring domains, and observed AI Overview appearances.
- Look for co-movement rather than claiming that one placement caused a citation.
- Keep the activities that help readers and conventional Search even when an AI Overview does not appear; eligibility is never a guarantee of display.
The durable lesson is measurement breadth: count links, but also inspect who is talking about the brand, what they say, and whether your own pages are eligible and useful when Search needs a supporting source.
Frequently Asked Questions
Can an unlinked brand mention make Google cite my site in an AI Overview?
There is no established rule that an unlinked mention earns a citation. The Ahrefs analysis found a stronger association for web mentions, but it did not isolate individual mentions or prove that Google used any particular one as a source.
Do AI Overviews use the same sources as the normal blue-link results?
A page must be indexed and eligible for a Search snippet to be eligible as a supporting link, according to Google. That is an eligibility condition, not a promise that every page shown in standard results will be selected for an AI Overview.
Should I delete every low-authority backlink?
No blanket removal rule follows from this study. Review links for relevance, manipulation, security, and real referral value; raw link count alone is not a quality score, and removing legitimate references can discard useful discovery paths.
How often should I check brand mentions and AI visibility?
A monthly review is a practical minimum for recording new coverage and correcting inaccurate descriptions, with a deeper quarterly analysis of trends. Keep query wording, location, language, and dates consistent so changes are comparable.
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