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X-RAY · 17 SEPTEMBER 2026

Eight AIs on a clean PC: which services each one looks up as soon as you open it

ChatGPT, Gemini, Copilot, Perplexity, Grok, DeepSeek, Meta AI and Mistral, opened one by one in a freshly installed Chrome on a Windows 11 PC, no account and nothing typed, 20 seconds each, with GUARDIANA recording every name their page made the machine ask for. Opening a landing page alone makes the machine talk to between four and nine services that are not that AI.

How to read this. GUARDIANA writes down every name the machine asks to resolve (DNS). It sees names, not content. Here each AI was opened alone, in a clean browser with no account, and measured from the inside; what is counted is the names its page asked for, and whatever other apps on the test PC resolved during that time is left out. This is the landing page: what happens in conversation, signed in, is in the signed-in x-ray.

The record

Scoreboard

How many services that are not that AI its landing page makes the machine ask for, in 20 seconds, with no account and nothing typed. They may belong to the same company or group as the AI, or to other companies: under each figure you can see how many of each. Beside it, how many of those names are on the open advertising and tracking lists: fewer, which is why the first figure is the one that counts.

AIServices besides the AIOf those, advertising or tracking Its own domainsDistinct names its page asked forThe fewest
Copilot4
1 from Microsoft, 3 from other companies
148yes
Perplexity4
4 from other companies
2610yes
Gemini4
4 from Google
4913yes
Mistral5
5 from other companies
116
Grok7
7 from other companies
229
DeepSeek9
9 from other companies
0211
ChatGPTnot measured (see its section)—
Meta AInot measured (see its section)—

Tied on 4, the fewest third-party services: Copilot, Perplexity, Gemini, against 9 for the one loading most. Not being on those lists does not mean it does not track: it means the lists do not know that name. This is a result of these pages on this day, not a general verdict.

What it says

Opening an AI's landing page, with no account and without typing anything, makes the machine talk to between 4 and 9 services that are not that AI. From fewest to most: Copilot 4 (surveys, error reports and Microsoft's telemetry endpoint), Perplexity 4, Gemini 4, Mistral 5, Grok 7 and DeepSeek 9. If you look only at the open advertising and tracking lists, the picture changes and misleads: DeepSeek comes out at zero, Copilot and Mistral at one, Perplexity and Grok at two, and only Gemini at four, the only one loading advertising and audience measurement (DoubleClick, Google Analytics, Tag Manager) on its own landing page. But DeepSeek's nine names include ByteDance's measurement and device identification, and none of them is on any list: the machine looks them up all the same. That is why GUARDIANA counts names instead of trusting a list. ChatGPT and Meta AI could not be measured with this method: one did not load in three attempts and the other asks you to sign in before showing anything.

Detail

MeasureCopilotPerplexityGeminiMistralGrokDeepSeekChatGPTMeta AI
Distinct names its page asked for81013691111
· advertising01411000
· trackers01101000
· telemetry10000000
· on no list that knows them788571111
Advertising + trackers + telemetry12512000
The site's own domains46912211
Names the browser blocked00000000
Blocked names that reached the DNS anyway00000000
Services besides the AI itself44457900
· from the same company or group10400000
· from other companies34057900
Attempts to use someone else’s encrypted DNS (the “DNS evasion” signal)00000000
Measured from the inside (DevTools)yesyesyesyesyesyesyesyes

Copilot

Microsoft's. Besides its own names it looks up Sprig (in-product surveys), Sentry (error reports) and browser.events.data.microsoft.com, Microsoft's telemetry endpoint, which the open lists mark as telemetry.

Services besides the AI itself (4)

Everything its page made the machine ask for that is not that AI, whether from the same company or group or from other companies. The category appears only when the name is on an open list of advertising, tracking or telemetry.

Its own domains (4)

Perplexity

It talks to Datadog (browser logging), Eppo (A/B testing), Cloudflare Insights (measurement) and the Google account, for signing in.

Services besides the AI itself (4)

Everything its page made the machine ask for that is not that AI, whether from the same company or group or from other companies. The category appears only when the name is on an open list of advertising, tracking or telemetry.

Its own domains (6)

Gemini

It is Google’s: almost every name it asks for is Google’s, and here they count as its own. The ones that do not count as its own are Google’s too, but they are not Gemini: Google Tag Manager, Google Analytics and DoubleClick, Google’s measurement and advertising tools, which count as tracking just as on any other site. It is the only one of the eight that loads advertising and audience measurement on its own landing screen.

Services besides the AI itself (4)

Everything its page made the machine ask for that is not that AI, whether from the same company or group or from other companies. The category appears only when the name is on an open list of advertising, tracking or telemetry.

Its own domains (9)

Mistral

It talks to Intercom (the support chat, three names), Sentry (error reports) and Cloudflare Insights (measurement).

Services besides the AI itself (5)

Everything its page made the machine ask for that is not that AI, whether from the same company or group or from other companies. The category appears only when the name is on an open list of advertising, tracking or telemetry.

Its own domains (1)

Grok

xAI's. It talks to OneTrust (the cookie notice and the location that decides it), Stripe (payments, three names), Google Tag Manager and Cloudflare Insights.

Services besides the AI itself (7)

Everything its page made the machine ask for that is not that AI, whether from the same company or group or from other companies. The category appears only when the name is on an open list of advertising, tracking or telemetry.

Its own domains (2)

DeepSeek

It loads more outside services than any of the others: ByteDance's Volcano Engine (apmplus.volces.com, gator.volces.com and two CDNs, measuring performance and use), portal101.cn (two names, from a device identification and risk service), an AWS firewall, a Cloudflare check and sign-in with Apple. Not one of those names is on the open advertising and tracking lists yet — which is exactly the gap a list leaves.

Services besides the AI itself (9)

Everything its page made the machine ask for that is not that AI, whether from the same company or group or from other companies. The category appears only when the name is on an open list of advertising, tracking or telemetry.

Its own domains (2)

ChatGPT

Not comparable: in three attempts of 45 seconds the page never finished loading in a Chrome driven from outside; it asked only for its own name. In my own browser, with the account signed in, it does open (that is the signed-in x-ray of 18 September).

Services besides the AI itself (0)

Everything its page made the machine ask for that is not that AI, whether from the same company or group or from other companies. The category appears only when the name is on an open list of advertising, tracking or telemetry.

None.

Its own domains (1)

Meta AI

Not comparable: to the browser driven from outside it answered with its own name and nothing else. Opened by hand it does load, and the first thing it shows is “Sign in to get started” — so without an account there is no screen to measure.

Services besides the AI itself (0)

Everything its page made the machine ask for that is not that AI, whether from the same company or group or from other companies. The category appears only when the name is on an open list of advertising, tracking or telemetry.

None.

Its own domains (1)

What only a guardian on the machine sees

The browser shows the page; GUARDIANA writes down every name the page makes the machine ask for, including the ones no content blocker ever shows you:

What can be claimed

What cannot be claimed

What you can switch off

Data and method

Full data: ocho-ia-en-un-pc-limpio-2026-09-17.csv (name, category, whether it belongs to the maker and, per AI, queries and whether its page asked for it). Method: each AI opened alone with site/src/radiografia/navegar.mjs (Chrome on Windows, empty profile, no account, no scrolling, 20 s + 15 s); names taken from the PC's GUARDIANA ledger for each time window, this machine's queries only; the tables count the names the page asked for, and when counting “third-party services” the ones Chrome itself asks for are also left out. The tools are in the program's repository (site/src/radiografia/); anyone can repeat the test with GUARDIANA installed.

Brands named as the names of their owners. If you are the maker and something here is inaccurate, write to hola@guardianagroup.com: it is corrected, with the date.

All x-rays

See it with any website. In the ZERO browser, the X-ray shows you who each page talks to, with no account. Enter →