Google PageSpeed Insights
Google's free page speed test for any public URL, with mobile and desktop results, real-visitor Core Web Vitals data and tips to fix slow pages.

Podtrac
Free podcast measurement from the company behind the industry rankings. Upgrade for smart links and promo tracking.

TubeBuddy
No special deal right now: paid plans only, with no free sign-up or trial. YouTube toolkit for titles, tags, thumbnails and bulk edits. For a free start, use vidIQ.

vidIQ
Free YouTube channel analytics with 150 AI credits a month, niche trends, content ideas and AI Coach tips. Upgrade for more credits.

OP3
Free, open-source podcast download analytics: add one prefix to your feed and get a stats page, with no signup.

Umami
Free privacy-focused web analytics for one site, up to 100K events a month.

PostHog
Free product analytics: 1M events and 5K session recordings a month, unlimited team members.

Visitor Tracking
Website and conversion tracking for unlimited sites, 10K pageviews a month, one payment.