Sources and Method

The method, directly

Every date-sensitive claim on this site references a source with a publication date and an access date, is typed (fact, interpretation, forecast, definition, method or estimate), carries a confidence label and a checked date, and fails the site build if any of that goes missing. 17 sources are currently registered, 11 of them primary.

17 registered claims17 sources

Method

Primary first.Platform claims cite the platform’s own documentation or announcement wherever one exists. Trade press is used to verify and date, or when no primary source exists. It is marked secondary.

Typed claims.Facts, interpretations and forecasts are labeled as what they are. Forecasts carry a horizon and a confidence level. Reported-but- unconfirmed developments say “reported.”

Dated everything. Sources carry publication and access dates; undated live documentation is stamped with its access date and says so. Claims carry checked dates. Pages carry published, updated and reviewed dates.

Unverifiable means unpublished. When something cannot be verified it is marked unknown or left out, including claims that would flatter the practice. Reports of broader ChatGPT ad availability, for example, are noted as unverified rather than repeated.

Enforced by the build. The site is generated from validated content objects, and a fact claim without a source or a forecast without a horizon fails the production build (described in the build note).

The source register

All registered sources with publisher, type, dates and primary status
SourcePublisherTypePublishedAccessedPrimary
About ads and AI OverviewsGoogle Ads Helphelp-center2026-07-142026-07-14yes
A new generation of ads for the AI era of SearchGoogle — The Keywordannouncement2026-05-202026-07-14yes
Testing ads in ChatGPTOpenAIannouncement2026-012026-07-14yes
ChatGPT rolls out adsTechCrunchnews2026-02-092026-07-14no
Bots — OpenAI crawler documentationOpenAIdocumentation2026-07-142026-07-14yes
Why we're experimenting with advertisingPerplexityannouncement2024-112026-07-14yes
Perplexity Pauses New Advertising Deals to Reassess AmbitionsAdweeknews2025-102026-07-14no
Perplexity pulls the plug on ads, citing trust concerns for AICampaign USnews2026-022026-07-14no
Conversations that Convert: Copilot Checkout and Brand AgentsMicrosoft Advertisingannouncement2026-01-082026-07-14yes
Microsoft is about to change how Copilot ads appear and triggerSearch Engine Landnews20242026-07-14no
Reddit AdsRedditdocumentation2026-07-142026-07-14yes
Google strikes $60 million deal with Reddit, allowing search giant to train AI models on human postsCBS Newsnews2024-022026-07-14no
The /llms.txt filellmstxt.org (Answer.AI)specification2024-09-032026-07-14yes
Google Says No AI System Currently Uses LLMs.txtSearch Engine Roundtablenews20252026-07-14no
IndexNowIndexNow (Microsoft Bing, Yandex and partners)documentation2026-07-142026-07-14yes
About offline conversion importsGoogle Ads Helphelp-center2026-07-142026-07-14yes
Google's common crawlersGoogle Search Centraldocumentation2026-07-142026-07-14yes