Request settings include headers, authentication, retry policy, and fetch mode controls for target endpoints.
-
+
+
Noise controls (ignore rules)
Noise controls apply ignore rules to suppress volatile paths and reduce false-positive drift alerts.
-
+
+
API & Automation
Read-only API
Read-only API exposes monitor, diff, and snapshot metadata for dashboards and automation without mutation access.
-
+
+
API rate limit
API rate limits apply per organization guardrails to protect service stability under automation workloads.
-
Per-org guard
Per-org guard
Retention & Billing Protections
Retention (snapshots + diffs)
Retention defines how long snapshots and diffs remain available for investigations and audits.
3 days
30 days
180 days
Grace on payment failure
Grace on payment failure keeps monitoring available for a short recovery window while billing is corrected.
-
+
+
Downgrade protection
Downgrade protection preserves running monitors and history while enforcing lower-tier limits for new creation.
-
+
+
Support
Support
Support level defines expected response channel and priority by tier.
Community
Email
Priority
When you exceed limits, existing monitors keep running but you cannot create new ones
During downgraded mode, webhook alerts are suppressed; email alerts may continue
Close the loop on expected changes
Most monitors stop at detection. DiffMon helps you finish the job: acknowledge, resolve, and accept expected drift so it does not keep resurfacing.
1. Detect change
Capture deterministic HTML and JSON contract drift with structured evidence.
2. Triage incident
Acknowledge and resolve incidents with request-linked run context.
3. Accept baseline
When drift is expected, accept baseline so recurring alerts are suppressed by design.
FAQ
Do you detect schema changes or just value changes?
DiffMon detects both. Smart Schema Validation classifies schema changes separately from value changes so you can prioritize breaking contract drift quickly.
Does Pro use a real browser for SPAs?
Yes. Pro uses Browser Render to execute client-side JavaScript and produce deterministic rendered DOM diffs for SPA routes.
Do you support authenticated APIs and custom headers?
Yes. Hobby and Pro include authenticated requests, custom headers, retry controls, and fetch-mode controls for production API endpoints.
Do I need a credit card to start?
No. You can start on Free without a credit card and upgrade only when you need higher scale or Browser Render.
No credit card required. Your Free workspace is provisioned instantly.
Need private-agent execution for regulated environments? Contact Sales.
