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Speedometer

Speedometer

Browser benchmark for measures web app responsiveness [Tech]

Developer Tools·Launched Dec 2014·0 upvotes·browserbench.org

▲Upvote0 Visit Website↗

UNVERIFIEDlast checked Jul 11, 2026 · Timeout

CohortClass of 2014

What it is

Browser benchmark for measures web app responsiveness [Tech]

HTTP liveness

9 probes since Jun 16

Jun 16Jul 11

AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)

Observed events

probes · press · GitHub

Jul 11, 2026
Probe inconclusive
Timeout
Jun 16, 2026
First probe — live
Alive · 200 OK

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VitalsQuiet

Upvotes

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Press

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Tags

free developers open source browser extension

Pulse Indexobserved activity

142/4 signal families

Liveness40%

0.20

Press30%

no data

GitHub20%

no data

Tranco10%

0.60

Weighted observed activity · updated Jul 15

Cohort survival · Class of 2014weekly

10,235 products launched in 2014 · 99% still active

10,131 active104 sunset

Still active

99%

Median lifespan

4.9y