---
title: ToolRouter — Agent Use Case Guide
description: Step-by-step guide for completing a task with a specific AI agent using ToolRouter.
url: https://toolrouter.com/tools/dns-domain/use-cases/check-propagation-status/copilot
---
# How to Check DNS Propagation with Copilot

Copilot integrates DNS checks directly into your development workflow, letting you verify domain configurations without leaving your editor. Validate DNS changes immediately after applying Terraform updates, check SSL certificates as part of your deployment verification, and verify email records when onboarding new sending providers. This tight integration with your infrastructure-as-code workflow catches configuration drift before it causes production issues.

## Setup

{"mcpServers":{"toolrouter":{"command":"npx","args":["-y","toolrouter-mcp"]}}}

## Steps

1. Add ToolRouter to Copilot MCP config
2. In Copilot Chat: "Check if DNS propagation is complete for api.example.com -- should point to our new load balancer"
3. Copilot returns current records and confirms propagation status
4. Re-check after your deployment if records have not yet updated

## Example Prompt

```
Verify DNS propagation for api.example.com. The A record should now resolve to 198.51.100.10.
```

## Tips

- Check propagation right before a deployment that depends on the DNS change
- Copilot can monitor multiple domains during a migration
- Use this to verify infrastructure-as-code DNS changes took effect
