The whole tool suite, one click
Test & Optimize
Speed, lag, Wi-Fi, DNS, gaming, privacy and security checked in one go, then fixed step by step. Pick who you're optimizing for (home, gaming, family or business) and we tailor the plan.
- 01 Test
Every check runs one after another, so they never compete for your line.
- 02 Optimize
A step-by-step plan with your exact settings. We ask before anything that changes your router, device or DNS.
- 03 Prove it
Re-test what you changed and see the before and after.
Test and optimize everything in one click
11 checks (speed, lag, Wi-Fi, DNS, gaming, privacy and security) in about 2 minutes, then a step-by-step plan that fixes what we find. Nothing to install.
Optimize for
Zero dropped Zoom calls & smooth streaming
Tick the checks you want, or press Test on any one to run it on its own.
Speed & lag
Home & device
Gaming & calls
Privacy & security
Some tools need something from you, like a room-by-room walk or a password. Find them in all tools. Compare Test & Optimize and Test & Optimize All. The Net Fix finds and fixes bottlenecks; it can't make your plan faster than what you pay for.
What the full checkup measures
Each check runs in turn, then the results are grouped by where the problem starts, so the plan fixes the cause and not the symptom. Good numbers to aim for: ping under 40 ms and jitter under 10 ms for gaming, under 30 ms of extra lag under load (bufferbloat grade A or A+), and DNS lookups in the tens of milliseconds. The Lag Check page explains each number and the full grade scale.
Home
This device, Wi-Fi, DNS and browser leaks
Most lag starts here, and most of it is a setting you can change: a Wi-Fi channel or band, a background download, a slow DNS resolver.
Line
Speed and lag under load, lag spikes, NAT, IPv6 and HTTP/3
The bufferbloat grade lives here. B or worse (30 ms or more extra under load) is usually fixed with Smart Queue on your router, not a new plan.
Beyond
Game server routes, streaming, outages and open ports
Distance to a server or an outage at a service you use. These show when the problem is not yours to fix, and what to tell your provider when it is theirs.
Common questions
What does Test & Optimize check?
Your device, speed and lag under load, lag spikes, DNS, IP and WebRTC leaks, NAT type, IPv6 and HTTP/3, game server routes, streaming, outages at popular services and open ports. Businesses can add a company domain for the email, website and look-alike domain checks. Every check runs in your browser.
How long does the full checkup take?
A few minutes. The checks run one after another so two load tests never compete for your line, which keeps each result honest. Only the lag checks? Boost starts with just those ticked and finishes sooner.
Will Test & Optimize change my router or settings?
No. It measures, then builds a step-by-step plan with exact values, such as a Smart Queue limit or a DNS address. Any step that changes your router, device or DNS asks first, and you make the change yourself. The fix guides walk through each one.
Is Test & Optimize free?
Yes. Every check is free for everyone, with no account and nothing to install. The site is paid for by Amazon affiliate links and ads, never by selling your results; pricing explains how, and the privacy policy lists what is stored.