Who we don’t take money from
Every lag tool you’ve used has a second customer. Speedtest’s owner sells measurement data. Router companies’ tests conclude “buy our router.” Booster apps’ diagnostics conclude “you need a booster.” LagScope has no second customer — and that’s the whole design. Here’s exactly what we refuse to sell, and exactly what this tool can and can’t tell you.
No VPN or booster sales
Gaming VPNs (ExitLag, Mudfish and friends) charge $5–10 a month to reroute your traffic. Sometimes that genuinely helps — when your ISP’s default route is bad — and usually it just adds hops. A company that sells the rerouting can never tell you the second part. We don’t sell it, so we can: our VPN guide shows you how to benchmark one yourself, and it ends with “skip it” as often as “keep it.”
No router sales
The best-known bufferbloat test on the internet is run by a company that sells routers. Their test is good — and it always ends one checkout away from new hardware. Our bufferbloat guide ends with SQM settings you can apply on the router you already own. If your measurements ever do point at hardware, we’ll say what to look for, not which box to buy.
No data deals
Your measurements stay in your browser. There is no account, no tracking pixel beyond basic anonymous analytics, and nothing to sell because nothing identifying is collected. The ISP leaderboard exists only because some users explicitly opt in to contributing anonymized aggregates — score, latency, loss per ISP. No IPs, no histories, no exceptions.
What this tool can and can’t do
Methodological honesty is a feature, not fine print. LagScope measures the real path from your browser to our nearest node (US or EU) — in GAME TRAFFIC mode with true 30 Hz UDP, the same way a game client talks to a server. That means:
- It can catch lagspikes, jitter, true packet loss, outages and bufferbloat with exact timestamps — the things speed tests average away.
- It can’t ping a specific game server. In-game ping adds the last hop from our node to the game server; treat our numbers as your connection’s floor.
- It can’t see inside your router or PC. It infers Wi-Fi problems and bufferbloat from their latency fingerprints — reliably, but by measurement, not mind-reading.
- It won’t measure while the tab is hidden. Browsers freeze hidden tabs and would fabricate fake lagspikes; we’d rather show a gap than a lie.
Why free?
Because the diagnosis has to come before anyone sells you the cure. If LagScope ever recommends anything paid — a booster trial for genuinely bad routing, say — it will be because your measurements say so, on this page’s terms, disclosed. Trust first or nothing.