PostHog alternative for website analytics
Updated October 2026 · 4 min read
PostHog is a product-analytics platform: funnels, cohorts, session replay, feature flags, experiments, error tracking and a web analytics dashboard, each billed by use on top of a free allowance. It is the right tool for a product with users whose behaviour inside the app you need to study. The reason to look for an alternative is when the question is your website rather than your product, and you want it read for you instead of instrumented. Clerion is that alternative: one script tag, no event plan, no cookies, and a daily briefing that says what changed and what to fix first.
Where they differ
| PostHog | Clerion | |
|---|---|---|
| What it is for | The product: funnels, retention, flags, experiments, replay | The website: traffic, AI assistants, conversions, revenue by source, errors, speed, SEO |
| How you start | Install, then instrument the events that matter to you | Paste one tag; conversions are one line each when you want them |
| The reading | Dashboards and an AI assistant you ask | A written briefing every day, signals ranked by impact, and questions in plain words |
| AI assistants as a channel | Listed among referrers | A channel of their own, with landing pages and conversion |
| Revenue by source | Revenue analytics with events | Each payment credited to the source that brought the visitor |
| Session replay | Yes | No, by design. The exit question and rage clicks instead |
| Cookies and banner | Cookies by default; a cookieless mode is available | None, none |
| Price | Free up to 1M events a month and 5,000 recordings, then usage-based, no subscription | From $14 a month for 25,000 pageviews, 14 days free |
PostHog's allowances read from its pricing page in October 2026; Clerion's today.
What Clerion does that PostHog leaves to you
The reading. PostHog shows you everything and gives you an assistant to ask. Clerion writes the briefing before you ask: what changed, why, the one fix to make first, ranked against the goal you set. Every figure comes from your data.
No event plan. Pageviews, sources, scroll, clicks, forms, speed and errors arrive from the tag. The events that matter to you are one line each, and Clerion draws the funnel to the one you name as the win.
Why visitors leave. The exit question asks a leaving visitor what stopped them, from five answers. Rage clicks name the element that looks clickable and is not. No recording to watch.
AI-readiness. Every page scored on what an assistant can read in it, with the site drawn as a graph and a note on what to fix.
Deploys. One call from CI, and each release is set against the day before it on errors and conversion.
When PostHog is the better choice
If you are studying what users do inside your product, PostHog is the stronger tool and it is not close: retention cohorts, feature flags, experiments and session replay are things Clerion does not do. Its free allowance is also generous enough that a small product may pay nothing for a long time.
Many teams run both: PostHog for the product, Clerion for the website. The two scripts do not conflict.
When Clerion is
If you are a founder or a small team whose question is the website, where visitors come from, which of them pay, where the rest stop, whether the site is broken, and you would rather read a paragraph than build a dashboard, Clerion fits. It needs no consent banner, which matters in Europe, and it never stores personal data.
Switching
There is nothing to migrate. Paste one tag, name your win with one line, and the first briefing is written from your first week of visitors. If you have Google Analytics history, bring that too. The full comparison is at Clerion vs. PostHog.
Frequently asked questions
Can Clerion replace PostHog?
For website analytics, yes. For product analytics, no, and it does not try to. Keep PostHog for the product if you need it.
Does Clerion have session replay?
No. It records the path, the counts, the errors with the visitor's last actions, the rage clicks, and the exit answers. That is usually enough to know what to fix, without watching recordings.
Does Clerion need a cookie banner?
No. It sets no cookies and stores no personal data, so there is nothing to ask consent for.
Can my own model read Clerion the way PostHog's MCP works?
Yes. Clerion has an MCP server too: seven read-only tools for Claude, Cursor or any client, on Growth and above.