Methodology

o11y is shorthand for observability (o + 11 letters + y). O11y Watch is an independent tracker of what observability vendors give away for free and how that changes.

How data is collected

1. We save a text snapshot of each vendor’s public pricing page (73 pages today).
2. A person reads the page and records the free plan name and its stated limits, verbatim where possible. 70 vendors are verified so far; the rest are marked Unverified and every unknown is shown as unknown.
3. A weekly script (scripts/check.mjs) re-fetches each page and diffs it against the snapshot. Meaningful diffs are reviewed and logged in the change log.

What we don’t do

• We never estimate or invent numbers. If a page doesn’t state a limit, neither do we.
• “Gotchas” are derived mechanically from the recorded limits (e.g. single seat, short retention, per-GB overage), not from hearsay.
• Sponsors never influence data or rankings; sponsored placements are always labeled.

Corrections

Pricing pages change without notice. Always confirm on the linked source before you buy. Corrections process: coming soon.