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NetVibe
NEWCompare your plan to what you actually get

Know if your internet is actually good.

NetVibe quietly measures your connection all day and tells you, in plain words, whether calls, games and streams will hold up — and whether you’re getting the speed you pay for.

Also on Windows and Linux · Free for everyone · Timing packets all day, one speed test a day

A NetVibe dashboard, shown with sample data.

Vibe score · last hour

Good

82/100

+3 vs your 24 h average

318 h measured over 41 sessions

Calls and 4K streaming are fine. Speed is holding the score back.

Best
94at 6 AM
Average
79over 24 h
Worst
28at 2 PM
  • Reliability91
  • SpeedLimiting78
  • Response84
timing measurements a second, all day long
10/s
full speed test — tiny timing packets the rest of the time
1/day
platforms: macOS, Windows and Linux
3
built and run by the Systems & Networking Lab
UCSB

How it works

Set it up once. It keeps watching.

  1. Install the app

    Two minutes on your Mac, PC or Linux machine. Name the device and you’re done.

  2. It measures quietly

    Tiny timing packets to our servers, ten times a second. You won’t notice it running.

  3. Read it in plain words

    A score, the reason behind it, and what works right now — calls, games, streams.

The vibe score

One number, with the reason behind it.

Speed tests tell you a number once. NetVibe watches all day and explains what it means — which part of your connection is holding you back, and when.

  • Reliability, speed and response, scored separately
  • Best, average and worst moments of the day
  • Plain-language summary instead of jargon

Vibe score · last hour

Good

82/100

+3 vs your 24 h average

318 h measured over 41 sessions

Calls and 4K streaming are fine. Speed is holding the score back.

Best
94at 6 AM
Average
79over 24 h
Worst
28at 2 PM
  • Reliability91
  • SpeedLimiting78
  • Response84

Your plan vs. reality

See if you’re getting what you pay for.

Add your plan once. NetVibe compares it with your real peaks and works out what each delivered megabit actually costs you.

  • Download and upload against your plan
  • Cost per delivered Mbps
  • Works for campus and shared networks too
Your plan
Edit
Cox Gigablast 100100 down / 50 up Mbps
$14.99per month
Download165of 100 Mbps
Upload97of 50 Mbps

Tick marks your plan. Peaks are above it both ways — about $0.09 per delivered Mbps.

Is it just you?

Know when it’s your ISP, not your router.

See how nearby networks are doing right now, and how your provider ranks in your zip code.

Around you
Details

Nobody nearby is disrupted right now

#3of 12 networks in 93101

ISPs near you

  • AT&T Fiber
    82
  • Cox · yours
    71
  • T‑Mobile Home
    63
  • Starlink
    57

Average vibe score by ISP, last 30 days

Disruptions

Keep a record for your ISP.

Report a dropped call in two taps. NetVibe attaches the measurements from that minute.

Disruptions
View all

3in the last 24 h · 1 still open

  • ZoomOpenVideo calls · 2:30 PM15 min
  • NetflixStreaming · 12:15 PM60 min
  • ValorantGaming · 9:05 AM25 min

Privacy

We measure the pipe, not what flows through it.

NetVibe sends its own tiny timing packets to our servers and times them. That’s the whole trick — it never opens, reads or inspects your traffic.

What NetVibe measures

  • Delay, jitter and packet loss
  • Peak download and upload
  • Network name and provider
  • Approximate area (zip code)

What it never sees

  • Websites and apps you use
  • Anything you type or send
  • Files, messages, passwords
  • Other devices on your network

Questions

Things people ask first.

Short answers to what people ask before installing.

Not noticeably. It sends tiny timing packets ten times a second and runs one short speed test a day. Outside that test, the load on your connection is small.

Find out what your internet is really doing.