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Down Fail
Website Up time Checker — Down Fail is a tool where you can monitor the status of your favorite web sites and checks whether they are down or not
last checked Jul 13, 2026 · Unknown
CohortClass of 2018What it is
Website Up time Checker — Down Fail is a tool where you can monitor the status of your favorite web sites and checks whether they are down or not. Just enter the url and status test will be performed on the domain name in real time. [SEO, Developer Tools]
HTTP liveness
15 probes since Jun 11Jun 11Jul 13
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 11, 2026First probe — unverifiedUnknown
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Pulse Indexobserved activity
15 probes0 pressGitHub –Tranco –
Not enough observed signals for a Pulse Index (needs 2+ signal families).
Cohort survival · Class of 2018weekly
2,435 products launched in 2018 · 100% still active
2,425 active10 sunset
Still active
100%
Median lifespan
4.9y