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Products/Communication/MattermostVC Report ↗
Mattermost

Mattermost

Open source, on-premises, Slack alternative [Productivity, Messaging, Tech]

Communication·Launched Jun 2015·0 upvotes·mattermost.org
▲Upvote0Visit Website↗
REDIRECTED → mattermost.comsince Jun 16, 2026 · HTTP 200
CohortClass of 2015

What it is

Open source, on-premises, Slack alternative [Productivity, Messaging, Tech]

HTTP liveness

20 probes since Jun 16
Jun 16Jul 16
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)

Observed events

probes · press · GitHub
  1. Jun 16, 2026
    First probe — redirected
    Redirected offsite

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Vitals
Upvotes
—
Press
—
Tags
Pulse Indexobserved activity
202/4 signal families
Liveness40%
0.40
Press30%
no data
GitHub20%
no data
Tranco10%
0.37

Weighted observed activity · updated Jul 15

Cohort survival · Class of 2015weekly

12,940 products launched in 2015 · 100% still active

12,899 active41 sunset
Still active
100%
Median lifespan
4.9y