what is an easy but precise way or online tool to find out all my connection and client data in details? companies like meta or google can see it, so I should be able to as well

GPT-5.6 Sol (changed mind)

Answer: For the fullest easy and precise view, combine BrowserLeaks or EFF Cover Your Tracks for what websites can observe, browser DevTools for requests, and Google Takeout plus Meta’s “Download Your Information” for what those companies have stored.

Claude Fable 5 convinced me that the question likely concerns both the technical data exposed to websites and the historical personal data held by Meta or Google—not merely devices and traffic on a home network. BrowserLeaks.com shows your public IP, approximate location, HTTP/browser attributes, WebRTC exposure, screen and graphics details, and fingerprinting signals. CoverYourTracks.eff.org estimates how uniquely identifiable your browser is. Because any testing site necessarily receives some information from you, use reputable services and avoid entering personal credentials. For exact browser activity, open Developer Tools with F12 and inspect the Network and Application/Storage tabs. These reveal requests, headers, cookies, local storage, and data sent by the page, although they do not expose every server-side inference or all transport-level metadata. To inspect retained account data, use Google Takeout, Google My Activity, Meta’s “Download Your Information,” and Meta’s Off-Meta Activity controls. These can provide searches, interactions, locations, device records, advertising activity, and third-party events associated with your account. My earlier router/Fing/Firewalla recommendation remains appropriate if “connection and client data” means every device and destination on your own network. However, no single online tool can reveal everything Meta or Google knows: encrypted content, internal security logs, inferred interests, cross-device matching, and proprietary models may be omitted from exports.

Claude Fable 5

Answer: Combine browser-fingerprint inspection tools (BrowserLeaks.com, CoverYourTracks.eff.org, ipleak.net) to see what your device exposes on every connection, with official data exports (Google Takeout, Meta's 'Download Your Information') to see what those companies have actually stored — and optionally add device-level traffic capture if you want to go deeper.

After reading the other responses, I'm maintaining my core position, because the round largely converged on the same two-layer answer I gave: Grok 4.6, Kimi K3, DeepSeek V4 Pro, and Qwen3.8 all recommend essentially the same combination of fingerprint-test sites plus official data exports. That convergence reinforces that this is the right framing for the question as asked — 'easy but precise.' The key insight remains that 'what Meta/Google can see' is really two different datasets requiring two different tools. The live technical footprint (IP, DNS, WebRTC, headers, canvas/WebGL fingerprint, cookies, client hints) is visible via BrowserLeaks.com, ipleak.net, CoverYourTracks.eff.org, and amiunique.org — or in raw form via your browser's DevTools Network tab (F12). The stored behavioral profile (search history, location timeline, ad interests, cross-site activity) lives on company servers and is only accessible through Google Takeout, myactivity.google.com, and Meta's 'Download Your Information' — a legal right under GDPR/CCPA. DeepSeek's mention of 'Just Get My Data' (justgetmydata.com) is a genuinely useful addition for finding export links for other services safely. Where GPT-5.6 Sol and Qwen3.8 diverge is by adding a third layer: network/device-level monitoring via router client lists, Fing, Pi-hole/NextDNS, Firewalla, or packet capture with Wireshark and mitmproxy. These are valid and more complete technically — they show what all your apps and devices send, not just your browser. But they don't change my headline answer, because the question explicitly asked for an 'easy' method, and HTTPS-inspection proxies, root certificates, and mirrored switch ports fail that bar for most people. I'd frame them as an optional deep-dive for those comfortable with technical setup, not the primary recommendation. One caveat worth keeping from the discussion: no tool gives you Meta's or Google's real-time internal logs or their inferred/derived data in full. The exports show what they store; the fingerprint sites show what they receive per connection. Together, that's the closest an individual can realistically get — which is exactly what the question was after.

DeepSeek V4 Pro (changed mind)

Answer: The easiest precise way is to combine browser‑fingerprinting inspection sites like BrowserLeaks.com and CoverYourTracks.eff.org for live connection/client data, with official data‑export tools like Google Takeout and Meta’s Download Your Information for the stored account data that companies have collected about you.

My previous answer focused only on the data‑export side, but the question asks for *all* connection and client data — both the live technical details a website can see and the stored profile data that companies hold. Claude Fable 5’s clear distinction between the two categories and the recommendation to use fingerprinting sites for the stream of data your device sends convinced me that the exports alone are not enough. A complete answer must include both tools: browser‑leak checks for your IP, browser fingerprint, WebRTC leaks, and HTTP headers, and official exports for the account‑linked history and inferences that companies store. This combination is still easy (no software installation required) and is the most precise way to see what Meta, Google, and other sites can observe about you.

Grok 4.6

Answer: Use Google Takeout and Meta’s Download Your Information for the stored profile those companies hold, plus BrowserLeaks.com and ipleak.net for the live connection and client details any site can observe—no single tool shows everything they see.

The original combination still answers the question better than any alternative in this round. Meta and Google see two different layers: (1) account and tracking data they store over time, and (2) the technical signals your browser or app sends on each connection. You cannot pull their internal logs or proprietary inferences in real time, but you can retrieve almost everything they are required to give you and independently inspect what a typical visit exposes. Official exports remain the precise source for layer (1). Google Takeout plus My Activity and Ads settings, and Meta’s Download Your Information plus Off-Facebook Activity, are the records those companies actually keep. A directory of official export links can help you find the right pages without phishing, but it does not replace the exports themselves. For layer (2), public inspection pages are still the easiest precise method: BrowserLeaks.com for headers, WebRTC, canvas/WebGL, fonts, and client hints; ipleak.net for IP/DNS/WebRTC leaks; Cover Your Tracks and amiunique.org for uniqueness. Browser DevTools (Network and Application tabs) show the raw requests, cookies, and storage a site receives. That is the client data any website—including those companies—can collect without an account. LAN inventory tools, gateway monitors, and packet captures answer a different question: what devices are on a network you own and where they connect. They do not show Meta or Google’s view of you, and they are neither as easy nor as on-point as exports plus fingerprint tests. Local HTTPS proxies can add request-level detail on your own device, but installing a trusted root certificate is not “easy” and is unnecessary for this goal. A single all-in-one site also falls short: fingerprint pages cannot show stored account history, and Takeout cannot show the live fingerprint of the current connection. The two-layer approach is still the easiest path that stays precise, uses only your own accounts and public test pages, and does not require inspecting anyone else’s traffic.

Qwen3.8-2.4T-A95B

Answer: I maintain my position: there is no single online tool that can reveal all connection and client data the way Meta or Google may know it; the easiest precise approach is to combine browser leak/fingerprint tests, browser developer tools, official data exports, and—optionally—router or proxy tools if you mean all network traffic.

The other models identify useful pieces of the problem, but none of them fully replaces the layered approach. DeepSeek V4 Pro is right that official export tools such as Google Takeout and Meta’s Download Your Information are the most precise way to see what those companies have stored about an account. Kimi K3, Claude Fable 5, and Grok 4.6 are right that sites like BrowserLeaks, ipleak.net, Cover Your Tracks, and amiunique.org show what a website can observe from your browser and connection. GPT-5.6 Sol adds a useful network-side perspective with router client lists, Fing, Firewalla, NextDNS, and Wireshark, but that approach is more technical and mainly shows device/network activity, not the full browser fingerprint or account profile stored by Meta or Google. My original position remains the most complete because the data is split across several places: your browser exposes technical client data during requests; the receiving company stores logs and account-linked data; and your router or local proxy can show device-level connections, but none of these layers alone shows everything.

Kimi K3 (changed mind)

Answer: No single online tool shows everything — the easiest precise setup is a two-layer combination: BrowserLeaks.com (plus Cover Your Tracks and ipleak.net) for the live technical footprint any website sees, and Google Takeout / Meta's "Download Your Information" for the stored profile data only those companies hold.

In round 1 I presented BrowserLeaks as an "all-in-one" answer, with the data-export tools only as a caveat. Claude Fable 5's answer convinced me that this framing undersells the real structure of the problem: the question actually spans two distinct categories — (1) the client-side footprint your device broadcasts with every connection (IP, DNS, WebRTC, fingerprint, headers), which inspection sites reveal, and (2) the server-side data Meta and Google have accumulated over time (location history, ad interests, off-platform activity), which only their official export tools can show. Neither layer alone answers "all my connection and client data," so the combination should be the headline, not a footnote. I still stand by BrowserLeaks.com as the best single starting point for layer one — no signup, no install, and it breaks down IP/geolocation, DNS, WebRTC leaks, TLS/JA3 fingerprint, canvas/WebGL, fonts, and HTTP headers with real technical depth. Cover Your Tracks (EFF) and amiunique.org add the useful dimension of how *unique* that fingerprint is, and browser DevTools (F12 → Network tab) shows the raw requests themselves. Two additions from this round are worth adopting. First, Claude Fable 5's honest caveat: even with exports, you can never see the *inferences* these companies compute server-side (behavioral profiles, cross-device matching) — those derived models stay proprietary, so "everything they see" is only partially reachable. Second, Qwen3.8's suggestion of a local HTTPS-inspecting proxy (HTTP Toolkit, mitmproxy) is a genuinely valuable optional third layer for seeing all traffic leaving your device, not just browser traffic. I was not persuaded by GPT-5.6 Sol's router/Fing/Firewalla focus — that answers a different question (inventorying devices on your home network), whereas the user's framing ("companies like meta or google can see it") is clearly about their own exposure to those companies. DeepSeek V4 Pro's export-only answer is easy and precise but misses the live fingerprint layer entirely. The refined combined answer keeps my original recommendation intact at its core while matching the full scope of the question.

Final Summary

The AI Roundtable unanimously concluded that no single online tool can reveal all connection and client data, requiring a two-part solution instead. Claude Fable 5 spurred a debate shift as GPT-5.6 Sol, Kimi K3, and DeepSeek V4 Pro refined their views to pair live fingerprinting test sites like BrowserLeaks.com with official privacy exports such as Google Takeout and Meta's Download Your Information. Grok 4.6 and Qwen3.8-2.4T-A95B agreed, noting that while browser DevTools and local proxies reveal raw outgoing traffic, combining leak-test sites with official data downloads provides the easiest and most comprehensive answer.

All 6 models agreed