Enterno.io vs Sentry
External website availability monitoring — vs an internal application error tracker
Overview
<p>Sentry is indispensable for developers: it captures exceptions, stack traces, and in-app performance. But it does not know whether your website is reachable from the outside.</p><p>Enterno.io checks your site from external servers every minute, monitors SSL, DNS, WHOIS, and alerts you before users notice a problem.</p>
Feature Comparison Table
| Feature | Enterno.io | Sentry |
|---|---|---|
| Uptime monitoring (external) | ✓ | ✗ |
| SSL monitoring | ✓ | ✗ |
| Web tools (60+) | ✓ | ✗ |
| WHOIS check | ✓ | ✗ |
| DNS monitoring | ✓ | ✗ |
| Error tracking | ✗ | ✓ |
| Performance monitoring | ✗ | ✓ |
| Telegram alerts | ✓ | ✓ |
| Data stored in Russia | ✓ | ✗ |
| API access | ✓ | ✓ |
| Free plan | ✓ | ✓ |
| Status page | ✓ | ✗ |
Feature comparison
| Feature | Enterno.io | Sentry |
|---|---|---|
| Uptime monitoring (external) | ✓ | ✗ |
| SSL monitoring | ✓ | ✗ |
| Web tools (60+) | ✓ | ✗ |
| WHOIS check | ✓ | ✗ |
| DNS monitoring | ✓ | ✗ |
| Error tracking | ✗ | ✓ |
| Performance monitoring | ✗ | ✓ |
| Telegram alerts | ✓ | ✓ |
| Data stored in Russia | ✓ | ✗ |
| API access | ✓ | ✓ |
| Free plan | ✓ | ✓ |
| Status page | ✓ | ✗ |
How much you save switching to Enterno
Enter your current monthly bill and pick an Enterno plan — we compute the delta.
Three steps to migrate
Honest: migration takes some manual work — no "1-click magic". But it is three clear steps.
-
Export your monitors from Sentry
Most providers offer a CSV export of your monitor list (URL, name, interval). Save it locally — you will upload it in step 2.
Help me export → -
Import the CSV into Enterno.io
Open /monitors → "Import" and upload the file. Enterno maps URL + interval automatically; you can adjust intervals to match your plan floor.
Open import → -
Cut over webhooks and DNS subscriptions
Point your alerting endpoints (Slack/Telegram/PagerDuty) at the new Enterno webhooks, then disable monitors on Sentry. Run both in parallel for ~24h to be safe.
Need help cutting over? →
Free plan with 10 monitors, no card required, no hidden limits.
Website Monitoring Plans & Pricing
Enterno.io + Sentry: the perfect pair
Sentry catches errors inside your application. Enterno.io monitors availability from the outside. Together they give you complete coverage: you learn about issues from both sides. Most teams use both services.
Migrate from Sentry
Where Sentry wins
Every monitoring tool has trade-offs. Sentry brings its own strengths to the table — typically a longer market presence, deeper integrations in its native ecosystem, or pricing tiers tuned for a different audience. We surface the honest comparison so you can pick the right tool for your context, not just the one we built.
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