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GhostlyX vs PostHog

PostHog is a powerful open-source platform that bundles product analytics, session replay, feature flags, A/B testing, and surveys into one tool. It is well suited to engineering and product teams who want a single platform across the entire product development cycle. GhostlyX is purpose-built for web analytics: it is dramatically lighter (under 1.5 kB vs PostHog's roughly 70 kB script), cookie-free by default, includes built-in uptime monitoring, and requires no configuration to be GDPR-compliant.

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At a glance

Feature GhostlyX PostHog
Privacy & compliance
Cookie-free
GDPR compliant
No data sampling
Respects DNT header
Respects GPC header
Data sold or shared with third parties
Features
Real-time visitors
Uptime monitoring
Traffic spike alerts
Funnel analysis
Goal tracking
REST API
Scheduled email reports
CSV export
TV / big-screen mode
Session replay
Heatmaps
A/B testing
AI insights
Server-side tracking
Shareable dashboards
Global geo reporting
MCP server
Open-source
Pricing & ownership
Script size Under 2 kB ~70 kB
Starting price Free plan available Free (1M events/mo) / usage-based after
Owned by Independent PostHog Inc. (USA)
Data location EU servers US or EU cloud (or self-hosted)

Why teams switch to GhostlyX

GhostlyX advantages

  • Cookie-free by default. PostHog sets cookies unless manually configured otherwise.
  • Script under 1.5 kB, compared to PostHog's roughly 70 kB bundle.
  • No consent banner required under GDPR or PECR.
  • Built-in uptime monitoring. PostHog has no equivalent.
  • Designed for web analytics clarity, not product analytics complexity.
  • Traffic spike notifications and weekly email reports included.
  • AI-powered insights and analyst chat included.
  • MCP server for AI agent integrations.

PostHog advantages

  • Open-source (MIT). Free to self-host with no pageview caps.
  • Session replay and heatmaps built in.
  • Feature flags and A/B testing included.
  • Generous free cloud tier covering 1 million events per month.
  • Surveys and in-app messaging available.
  • EU cloud region available for data residency.

Common questions

PostHog has a web analytics module, but it is primarily a product analytics platform. Its script is roughly 70 kB and it sets cookies by default. GhostlyX is purpose-built for web analytics, is under 1.5 kB, and is cookie-free with no configuration needed.
PostHog offers a generous free tier covering 1 million events per month on its cloud product. Self-hosting PostHog is also free but requires infrastructure setup and ongoing maintenance.
PostHog sets cookies by default, which means a GDPR consent banner is required in the EU and UK unless you specifically configure cookieless mode. GhostlyX is cookie-free by default and requires no consent banner.

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