Who publishes this
The Named Index is published by PT Arka Wiweka Saksama, a company registered in Medan, Indonesia (business registration number, NIB: 2808260040143).
Edbert Ongko, Founder, PT Arka Wiweka Saksama — his LinkedIn profile.
It is independently owned, funded by its publisher — which also sells services, see what we sell — and not affiliated with any vendor in the index. No vendor has any ownership, editorial input, or advance sight of an edition before it publishes.
How the measurement is done
The measurement is done by a tool we built and maintain ourselves. It stores every answer it receives and generates each edition from those stored answers rather than from anything typed in by hand. ChatGPT and Perplexity are asked through their own official APIs. The two Google surfaces are not, because Google publishes no API for them — they reach us through a disclosed third-party SERP-data provider. Every edition names which engine came from which, and why that distinction matters.
The same tool produces the public index and the client reports, from the same stored answers. A client cannot be shown a different number from the one you see.
Raw answers are kept for three years, so any figure we have ever published can be traced back to the text it came from. The method is published, including the scoring formula, the rank weights, the exact engines and models, and how many questions each engine actually answered.
The tool is not perfect and the index says where it is not. Each edition prints how many questions were asked, how many returned an answer and how many were scored; how stable the answers were across repeats; and which questions were excluded and why. Where an earlier edition is restated because the vendor registry changed, we report the registry effect separately from the real change. And where we find that we measured something wrongly, the correction is marked on the edition it affects, with the figures as first published beside the figures now — the August 2026 edition carries one. We would rather show you a correction than let a number quietly improve.
Why an Indonesian operator publishes an Australian index
The measurement is the same wherever it is run from — the questions are anchored to Australia, the engines are asked for Australian results, and the vendors are Australian.
Being outside the market has one advantage worth stating plainly: we have no relationships in it to protect. We have never worked for any vendor in this index, we do not attend the conferences, and we owe nobody a favourable reading.
Disclosure
We sell AI-visibility services. Position in the index cannot be purchased. Clients are named in the methodology of each edition published during the engagement and for twelve months after it ends; where a genuine legal or contractual restriction prevents naming one, that edition gives the number withheld instead. No vendor was a client of ours in the September 2026 edition. The full disclosure is published.
Contact
Corrections and questions about the method: corrections@namedindex.com
If you think a figure about your company is wrong, write with the edition and the vendor name. We will re-check it against the stored answers and correct it in the following edition if we got it wrong. Additions to the vendor list are welcome and all correspondence gets answered.
Anything else: contact@namedindex.com