SaaS monitoring is different from monitoring a blog or a marketing site. You need to know that login works, that the API responds correctly, that webhooks fire, that the checkout flow completes, and that your customers know what's happening when something breaks.
This guide covers what to monitor, which tools to consider, and how to set up a monitoring strategy that actually matches how SaaS products fail.
Why SaaS Monitoring is Different
It's not just "is the homepage up"
A marketing website going down is embarrassing. A SaaS product going down is a business emergency.
Here's why SaaS monitoring needs a different approach:
- Your users are logged in and working. When Notion goes down, people lose access to their notes mid-meeting. When Stripe has issues, businesses can't accept payments. The impact is immediate and personal.
- Multiple failure modes. Your homepage can load perfectly while your API is broken, your auth flow fails, or your webhook system is backed up. A simple ping check won't catch any of these.
- SLA obligations. If you serve business customers, you probably have uptime commitments. You need monitoring data to verify and prove your SLA compliance.
- Customer trust compounds. Each incident either builds or erodes trust. How you detect, respond, and communicate determines whether customers stay or churn.
- Third-party dependencies. Your SaaS depends on Stripe, Auth0, SendGrid, AWS, Cloudflare — any of these failing affects your product even when your code is perfect.
What You Need to Monitor
The complete checklist
Layer 1: Uptime (the foundation)
- Your main application URL
- Your API endpoints (separate from the web app)
- Your marketing site / docs (separate checks)
- Any microservices or worker processes
Check every 60 seconds from multiple locations. This catches total outages and regional issues.
Layer 2: Authentication flows
Your login is your front door. If it's broken, nobody can use your product — even if everything else works.
- Login flow (credentials → session)
- OAuth/SSO flows (if you support them)
- Password reset flow
- API key authentication
Layer 3: Core user journeys
The workflows your paying customers use daily:
- Signup → onboarding
- Login → dashboard load
- Key feature usage (whatever your product does)
- Billing / checkout flow
- Data export / API calls
These need multi-step monitoring, not single URL checks.
Layer 4: Infrastructure signals
- SSL certificate expiry (alert at 30/14/7 days)
- Domain registration expiry
- Response time thresholds (alert when consistently > 3 seconds)
- API response time by endpoint
Layer 5: Communication readiness
- Status page operational and accessible
- Alert routing configured (who gets paged, when)
- Incident templates ready
- Customer communication channels tested
The SaaS Monitoring Stack
Tools by category
A complete SaaS monitoring setup typically combines:
- Uptime monitoring — checks if your service responds. Every monitoring tool does this. The basics.
- Synthetic/flow monitoring — simulates user journeys. Checks that login, checkout, and key features actually work end-to-end. This is where most SaaS founders under-invest.
- SSL & domain monitoring — prevents the most embarrassing type of outage. Set it and forget it (but verify it's working).
- Status pages — how you communicate with customers during incidents. Not optional for SaaS.
- Alerting & escalation — getting the right person notified at the right time. Email for non-critical, SMS/phone for critical.
- Log monitoring & APM — deeper observability (error rates, traces, performance profiling). Important at scale, optional early on.
You don't need all of these on day one. Start with uptime + SSL + status page, then add layers as you grow.
Best Monitoring Tools for SaaS (Compared)
Honest comparison for SaaS use cases
| Tool | Best For | Uptime | Flow Monitoring | Status Pages | SSL | From |
|---|---|---|---|---|---|---|
| PerkyDash | Indie SaaS, small teams | ✓ | ✓ API flows | ✓ Full | ✓ | €9.99/mo |
| Better Stack | Logs + monitoring | ✓ | ✗ | ✓ | ✓ | $29/mo |
| UptimeRobot | Budget uptime-only | ✓ | ✗ | ⚠ Basic | ✓ | Free / $8 |
| Checkly | Developer teams | ✓ | ✓ Playwright | ✓ | ✓ | $24/mo |
| Datadog | Enterprise full-stack | ✓ | ✓ Browser + API | ✗ | ✓ | ~$100+ |
| Freshping | Free basic monitoring | ✓ | ✗ | ⚠ Basic | ✓ | Free / $11 |
| Pingdom | Legacy enterprise | ✓ | ⚠ Limited | ✗ | ✓ | $15/mo |
See detailed comparisons: PerkyDash vs all competitors
Quick verdicts by SaaS stage
Early stage (0–$5K MRR)
You need: uptime monitoring, SSL monitoring, a status page, and basic flow monitoring. Budget: $0–$20/mo.
Best fit: PerkyDash Pro (€9.99/mo) covers all four. Or start with UptimeRobot free + a free status page tool, then upgrade.
Avoid: Datadog, enterprise tools. You don't need the complexity or cost yet.
Growth stage ($5K–$50K MRR)
You need: everything above + detailed flow monitoring for critical user journeys, multiple alert channels, and SLA tracking.
Best fit: PerkyDash (€9.99–€39.99/mo) or Checkly ($24/mo) if your team prefers code-based monitoring. Add Better Stack ($29/mo) if you also need log management.
Consider: An APM tool (Sentry, New Relic free tier) for error tracking alongside your monitoring.
Scale stage ($50K+ MRR)
You need: comprehensive synthetic monitoring, real user monitoring (RUM), APM, log aggregation, and dedicated incident management.
Best fit: Datadog or New Relic for full observability stack. Keep PerkyDash or similar for customer-facing status pages and simple uptime checks.
Budget: $200–$1000+/mo for the full stack.
Setting Up Your Monitoring Strategy
Step by step, starting today
1 Map your critical paths (30 minutes)
List every user-facing URL and API endpoint. Then identify the 3–5 most critical user flows: login, core feature, billing/payment, signup/onboarding, and API (if you have external API users).
2 Set up uptime monitoring (15 minutes)
Add HTTP checks for your main app URL, API base URL, and marketing site. Check every 60 seconds from at least 2 geographic regions.
3 Add SSL and domain monitoring (5 minutes)
Add your domains. Set alerts at 30, 14, and 7 days before expiry. This takes minutes and prevents the most embarrassing outage type.
4 Set up your status page (10 minutes)
Create components matching your critical paths: App, API, Billing, Integrations. Connect it to your monitoring so it updates automatically.
5 Configure alerts (10 minutes)
Route alerts to the right people: email for warnings (SSL expiring, slow response times), Slack for non-critical incidents (degraded performance), SMS/phone for critical (complete outage).
6 Add flow monitoring (30 minutes)
Configure multi-step checks for your top 2–3 user flows. Start with login and your core feature. Add more over time.
Total setup time: about 2 hours for a comprehensive monitoring setup. Most of that is step 1 (thinking about what to monitor) and step 6 (configuring flows).
Status Pages: Non-Negotiable for SaaS
If you take one thing from this guide: set up a status page.
- B2B customers expect it. When evaluating SaaS tools, buyers look for a status page. Not having one signals immaturity.
- It reduces support load dramatically. During an incident, a status page with subscriber notifications can reduce incoming tickets by 50–80%.
- It builds trust over time. A status page with honest incident history and good uptime stats becomes a trust asset. Prospects see it during evaluation.
- It protects your SLA. Status page incident logs provide documentation for SLA calculations and dispute resolution.
Start with a public status page showing 3–5 components. Add subscriber notifications. Keep it updated during incidents. That's it.
Need a status page right now? Create an emergency status page in 60 seconds — free, no signup.
Want monitoring + status pages together?
Start free trial — PerkyDash includes both from €9.99/moBudget Guide: What to Spend at Each Stage
Monitoring is one of the highest-ROI investments for a SaaS product. The cost of one undetected outage (lost revenue + churn + reputation damage) almost always exceeds a year of monitoring costs.
| MRR | Monthly Budget | What You Get |
|---|---|---|
| Pre-revenue | $0–$10 | Free uptime tool + free status page tool |
| $0–$1K | $10–$20 | PerkyDash Pro or similar: uptime + SSL + status page + basic flows |
| $1K–$10K | $20–$50 | Full stack: uptime + flows + status page + multiple alert channels |
| $10K–$50K | $50–$200 | Above + APM/error tracking + log monitoring |
| $50K+ | $200–$1000+ | Full observability: synthetics + RUM + APM + logs + incident management |
The key insight: don't over-invest early, but don't under-invest either. A $10/mo monitoring tool that catches a 4-hour outage before customers notice has paid for itself for years.
Calculate your potential downtime cost: Downtime cost calculator
Conclusion
SaaS monitoring isn't about having the most expensive tools or the most dashboards. It's about answering three questions at all times:
- 1 Is my product working right now? (Uptime + flow monitoring)
- 2 Will something break soon? (SSL, domain, resource monitoring)
- 3 Do my customers know what's happening? (Status pages)
Start with the basics: uptime checks, SSL monitoring, and a status page. Add flow monitoring for your critical user journeys. Configure alerts so the right person knows immediately.
You can set this up in two hours. The first outage you catch early will convince you it was worth every minute.
Related reading: Monitoring for startups • Monitoring checklist • Site down action plan • Post-mortem template
Start Monitoring Your SaaS Today
PerkyDash: Uptime + API flows + status pages from €9.99/mo. No credit card required to start.
Frequently Asked Questions
What is the best monitoring tool for a SaaS startup?
For early-stage SaaS, look for a tool that combines uptime monitoring, SSL monitoring, flow or API monitoring, and status pages in one affordable package. PerkyDash, Checkly, and Better Stack are popular choices. Avoid enterprise tools like Datadog until you need full-stack observability.
How much should a SaaS company spend on monitoring?
At the early stage, 10 to 20 dollars per month covers essential monitoring. As you grow past 10K MRR, budget 50 to 200 dollars for a more complete stack including APM and log monitoring. The cost of one undetected outage typically exceeds years of monitoring expenses.
Do SaaS products need a status page?
Yes. A status page is non-negotiable for SaaS products, especially those serving business customers. It reduces support tickets during incidents, builds trust with prospects, and provides documentation for SLA compliance.
What should I monitor on my SaaS application?
At minimum monitor uptime for your app and API, SSL certificate expiry, and your login flow. Then add monitoring for core user journeys like checkout or key feature usage, response time thresholds, and domain expiry.
How often should I check my SaaS application uptime?
Check every 60 seconds from at least two geographic locations. For critical services, consider 30-second intervals. The goal is to detect outages within 1 to 2 minutes, well before most customers notice.
Related Guides
Website Monitoring for Startups
Stage-by-stage monitoring strategy from MVP to scaling.
ChecklistThe Complete Monitoring Checklist
Everything you should be monitoring, with interactive checklist.
Status PagesStatus Page Best Practices
How to create a status page that builds trust through transparency.
SLASLA and Uptime Guarantees Explained
What 99.9% uptime really means for your business.