Numbers
Every number SourceNode has published
One page for every figure we have put in print, with what it measures, the sample behind it and where it was first published. Quote any of them as SourceNode with the date. If a number on this page and a number elsewhere on the site ever disagree, this page is the one we keep current.
The documented engagement, June to September 2026
4.6% to 47.2% share of voice. William Mattar Law Offices, a New York motor vehicle accident firm, measured against 13 competing firms on the same 60 customer questions across ChatGPT, Gemini and Google AI Overviews, daily, June to 17 September 2026. Published on the results page and in Three months of changes.
2.4% to 23.3% visibility, and position from fourth of fourteen to first. Same engagement, same period and prompt set.
29.5%, 43.8%, 47.2%. Share of voice at the end of month one, two and three. Month one rewrote the practice pages and agreed 16 facts across every source. Month two published 31 pages and worked the directories and publications the engines cited. Month three held the position.
54.7% share of voice on ChatGPT at the end of month two, the first engine where the firm led outright.
4,222 answers in the 30 days to 17 September 2026, each with a citation record. That is the data set behind every figure in this section and the next.
18,742 retrievals from 46 third-party domains against 4,319 from the firm’s own site, across 63 cited pages. The nearest competitor’s site drew 1,296. Roughly four retrievals in five came from somewhere the firm did not own. Published in Which sources AI models cite.
1,164 answers in 30 days cited the firm’s own site, 27.6% of the set. Published in How AI search builds an answer.
90.2% alignment between what the models said about the firm and the firm’s verified facts at 17 September 2026. The remaining 9.8% is a correction list.
37.8% against 6.3%. Visibility on decision-stage questions against comparison-stage questions for the same firm, which is where the work was pointed next. Published in The first query.
26.7%, 26.0%, 15.4%. September visibility on ChatGPT, Gemini and Google AI Overviews respectively, against the blended 23.3%. Published in How to read AI search metrics.
The New York tracker, latest 30 days
9,049 answers between 18 September and 17 October 2026: ChatGPT 3,330, Gemini 3,330, Google AI Overviews 2,389. The prompt set was expanded from 60 to 111 questions and the competitor set is still 14 firms.
48.4% share of voice, first of 14, across all three engines in that window.
55%, 57%, 21%. Share of voice for the same firm on ChatGPT, Gemini and Google AI Overviews. Visibility 22%, 20% and 10%. Average position when named 2.0, 1.9 and 2.3. A blended score hid a 36-point gap between ChatGPT and AI Overviews. Published in Who do AI engines trust when someone asks for a car accident lawyer in New York.
The tracker runs daily and these figures move. The date above is the date to quote.
Which sources each engine reads
ChatGPT, New York car accident questions: nycourts.gov retrieved in 28% of answers, ny.gov in 27%, nysenate.gov in 15%, the state bar in 9%. Firms were then named from directories: Avvo in 15% of answers, Justia 11%, Expertise 9%, lawyers.com 9%, Super Lawyers 9%. The firm we manage was retrieved in 15% of answers, more than any competitor, and cited four times per answer on average.
Gemini: the firm’s own site led at 15% of answers, Super Lawyers followed at 6%, then individual firm sites at 3% to 6% each. Gemini cites a retrieved page two to four times, so a firm whose own pages are retrieved gets most of the credit.
Google AI Overviews: YouTube retrieved in 23% of answers, more than any other source. Competitor firm sites at 10% to 19% each, then Facebook 6%, Reddit 5%, Instagram 5%. Directories mattered far less here, Avvo 5% and Justia 6%, and government sources appeared in only 7% of answers.
Published 18 October 2026 from the 9,049-answer set above.
The 111 questions
51 ask the engine to find or recommend a lawyer, 26 ask how a claim works in New York, 10 ask whether hiring a lawyer is worth it, 8 ask the engine to compare firms, 16 ask about a named firm. Within the 51: truck and commercial vehicle 9, motorcycle 8, pedestrian and bus 7, rideshare 2, car accident by city 12, and the rest by injury or circumstance. Published in 111 questions people ask AI before they call a car accident lawyer, 18 October 2026.
Third-party figures we cite, and their sources
4.4x. The value of a visitor from AI search against one from traditional organic search, by conversion rate, across more than 500 topics. Semrush, July 2025.
8% against 15%. Share of Google visits where a user clicked a traditional result when an AI summary was present against when it was not. Pew Research Center, July 2025.
0.5% of visits and 12.1% of signups from AI search, a conversion rate roughly 23 times organic. Ahrefs, June 2025.
38% worse to 54% better. Conversion rate of AI-referred traffic to US retail sites against other channels, March 2025 to May 2026, with 53% more time on site and 23% more pages per visit. Adobe Analytics, June 2026. The April 2026 Adobe Digital Insights report put revenue per visit 37% higher.
80% of consumers rely on zero-click results in at least 40% of searches, and about 60% of searches end without a click. Bain, February 2025, n=1,117.
1.6% to 6.8%. Share of ChatGPT answers that link out to a source, over a year, alongside about 9.5 billion monthly visits to AI assistants. Similarweb, July 2026.
25%. Forecast fall in traditional search engine volume by 2026. Gartner, February 2024.
More than 2 billion monthly users of AI Overviews. Alphabet Q2 2025 earnings call, July 2025. 800 million weekly users of ChatGPT. OpenAI DevDay, October 2025.
Up to 40%. The gain in generative-engine visibility from adding citations, quotations and statistics to a page, across 10,000 queries. Aggarwal et al., GEO: Generative Engine Optimization, KDD 2024.
34.5%. The drop in click-through for the top organic result when an AI Overview is present. Ahrefs, April 2025. Separately, an Ahrefs controlled test on 1,885 pages found no gain in AI Overview visibility from adding structured data alone.
How to quote these
Cite SourceNode with the date given, link to this page or to the post named, and keep the sample next to the number. We will send the underlying figures with the method for any of them: odin@sourcenode.co.