OP3

op3.dev ↗

Open download statistics through a podcast prefix

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SI Score: 80/100
Pricing: Open Source AI reading, not confirmed
Free plan: Not confirmed
Sign-up required: Not required AI reading, not confirmed

Open Data Podcast Analytics

Ask SI about OP3

Answers use saved listing facts and recorded sources.

What it does

OP3 measures podcast downloads through an episode-URL prefix and publishes open statistics.

Adding the prefix makes a show's numbers public, which is a deliberate publishing choice. The service can coexist with other prefixes and supplies a public statistics page and data exports. It is free and open source, with code available for scrutiny.

Strengths

Public downloadable statistics
Coexists with other prefixes

Watch out for

Participating makes show metrics public

Best for

Publishers comfortable sharing download metrics openly

Sources

OP3: The Open Podcast Prefix Project (Oct 26, 2026)

SI Score

80/100

#1 in Podcasts

Based on published information. No hands-on task test.

Method 2.0 · Published source review Assessed Oct 26, 2026Score ceiling for this evidence: 84/100.

Product usefulness 80

Evidence

The source gives the exact prefix setup, coexistence with other prefixes and public stats/export outputs, together with no-login and public-metrics boundaries. This supports 80.

Limits: AI review of saved source passages. No hands-on test, human approval or automatic-provider checker receipt.

Source links and check dates are in Sources and checks below.

Separate website checks

These checks do not add points to the SI Score. They inspect the website's HTML, not the product in use.

Basic website checksunknown

No check recorded.

HTML accessibility checksunknown

No check recorded.

Homepage HTML responseunknown

No check recorded.

Trackers in homepage HTMLunknown

No check recorded.

Page date hintsunknown

No check recorded.

Policy links do not verify a company's conduct. An HTML response time is not application speed. Tracker and accessibility checks miss behavior after page load. Copyright dates do not prove product upkeep.

How the SI Score works →

Unconfirmed details may be unassessed, absent from the pages checked or temporarily unreadable. A missing price does not mean the service is free.

Sources and checks

Supporting pages for product usefulness, site facts, prices and separate website checks. Each record keeps its own date. Reading a page does not establish how well the product performs in use.

op3.dev/
- PricingAI reading, not confirmedChecked Oct 26, 2026
  The official page describes the project as open source.
- Sign-up requiredAI reading, not confirmedChecked Oct 26, 2026
  OP3 explicitly says no signup or login is required.
- Open sourceAI reading, not confirmedChecked Oct 26, 2026
  The official page calls OP3 a free and open-source analytics service.
- Product usefulness evidenceChecked Oct 26, 2026

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