CheckUpstream has measured 100ms at 100.000% uptime over the last 90 days and 99.983% over the last 12 months. 1 incident was recorded in the past 12 months; the most recent resolved 118 days ago after 1 hour. Status signals are polled from 100ms's official Atlassian Statuspage status page, alongside independent probes and community reports.
180 days uptime
99.966%
179 of 180 days clean · 1h 29m total downtime
Downtime like this can be refundable
If you're a paying 100ms customer, outages in these windows may count against 100ms's SLA — vendors owe service credits for missed uptime targets, but only if you file inside the deadline. CheckUpstream tracks the entitlement, drafts the claim, and hands you the filing link.
Track your 100ms entitlement →Live status pill for 100ms. Updates automatically — no maintenance, no API key.
PREVIEW
Drop into any HTML page — README, docs, vendor homepage. No iframe, no dependencies.
<script src="https://checkupstream.com/embed/badge.js?service=100ms"></script>Self-contained, CSP-friendly. Theme + size are query params; revalidates every 60s.
<iframe src="https://checkupstream.com/embed/100ms" style="border:0;width:260px;height:44px" loading="lazy" title="100ms status badge"></iframe>GitHub READMEs, GitLab, MDX docs — links to the live reliability page.
[](https://checkupstream.com/reliability/100ms)Useful for status-page composers (Notion, Slab, custom dashboards) that accept image URLs.
https://checkupstream.com/embed/100ms/badge.svg100ms is currently Operational. CheckUpstream tracks 100ms in real-time across the official status page, RSS / Atom feeds, and community telemetry — refresh this page for the latest reading.
100ms's last resolved incident started 118 days ago and lasted 1h 29m (a complete outage).
Looking for the live "is 100ms down" view? See the 100ms Status page.
100ms's 30-day customer-perceived uptime is 99.966%. The figure is weighted (full-outage = 1.0, degraded = 0.3) so component blips don't collapse the score the way a raw incident-count would.
Sign up to CheckUpstream and add 100ms to a watchlist. We send incident alerts via Slack, email, webhook, or PagerDuty within seconds of detection — covering both the official status page and community signals (HN, Reddit, Bluesky, Cloudflare Radar).
We poll 100ms's official status page on a 1-5 minute cadence, parse its RSS / Atom feed as a fallback, ingest community signals from social platforms, and aggregate per-org SDK telemetry. Multiple sources reduce false positives versus any single feed alone.