Five-layer observability stack for Royal Glow — Sentry, BetterStack, PostHog, Clarity, and Checkly.
In one line: Five layers, each answering a different question, all on free
tiers at ₹0/month — Sentry (errors), BetterStack (uptime + status + jobs +
logs), PostHog (product analytics), Microsoft Clarity (heatmaps + replay), and
Checkly (synthetic monitoring).
Royal Glow uses five distinct observability layers, each answering a different question. Total monthly cost: ₹0.
Layer 1 — Error Monitoring. Free tier: 5,000 errors/month — more than sufficient at launch.Sentry is guarded and currently covers:
Browser/client SDK paths in apps/web and apps/admin when their optional DSNs are set.
Unexpected non-AppError exceptions caught by each app’s wrapped API error handler; sentry-server-init.ts loads the matching server/edge config on first use.
The Cloud Run invoicing service when its optional SENTRY_DSN is set.
This does not mean every Lambda/SSR failure is captured: exceptions outside wrapped API handlers may bypass the current server bootstrap. Payload CMS has no Sentry dependency or initialization. Production source maps are not currently uploaded because deploy-aws.yml has no Sentry credentials or upload step.What is intentionally not reported as an unexpected server error:
Business rule violations (4xx)
Validation errors (400)
Rate limits (429)
Expected authentication/authorization responses
Layer 2 — Uptime, Status Page, Logs & Job Monitoring. BetterStack replaces three separate tools (UptimeRobot + Cronitor + a log tool) in one platform.
Scheduled work pings a BetterStack heartbeat URL on successful completion. If BetterStack doesn’t receive the ping within the expected window, it fires an alert.
Public status page at status.theroyalglow.in — customers can check during outages. Free, custom domain supported.
Layer 3 — Product Analytics. Free tier: 1 million events/month.PostHog covers the full funnel: page views → service browsing → booking → conversion. It also provides feature flags for A/B testing offers without deploying new code.
Google Analytics sends data to Google — a concern under India’s DPDP Act 2023. PostHog is self-hostable and DPDP-compliant.
Layer 4 — Heatmaps & Session Replay. Free tier: Completely free, no event caps, no session limits.Clarity complements PostHog — it’s better at visual heatmaps, PostHog is better at funnel analytics.What Clarity reveals:
Are users clicking the booking CTA or ignoring it?
How far do users scroll on the services page?
Where do users get confused on the booking form?
Which parts of the homepage get the most attention?
Rage clicks and dead clicks
Layer 5 — Synthetic Monitoring. Free tier: 5 checks, 10,000 check runs/month.BetterStack answers “Is the server responding?” Checkly answers “Does the app actually work?” — it runs real Playwright scripts against production on a schedule.
All third-party browser scripts (PostHog, Clarity, Meta Pixel) load only after explicit cookie consent and only when their keys are configured. The cookie consent banner is a custom two-tier implementation — no paid consent management tool needed.
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