Start with revenue paths
Prioritize hostnames that affect browsing, login, checkout, payment-adjacent flows, APIs, CDNs, and identity. Separate those from lower-risk marketing pages.
- Tag checkout, storefront, identity, API, CDN, and payment-adjacent hosts.
- Give checkout and identity hostnames faster alert paths than low-risk pages.
- Use the checker after CDN or provider changes before customer traffic finds the issue.
| Revenue path | Hostnames to include | Alert route |
|---|---|---|
| Storefront | www, apex, regional storefronts, campaign domains. | Early email plus watched store/platform channel. |
| Checkout | checkout, billing, cart, hosted checkout subdomains. | Urgent Slack or incident workflow. |
| Login and identity | login, auth, account, SSO callback domains. | Watched platform or identity channel. |
| API and CDN | api, assets, cdn, image, payment-adjacent API hostnames. | Platform, CDN, or infrastructure route. |
| Payment-adjacent vendors | Provider-hosted or CNAMEd hostnames customers touch. | Shared owner route with vendor context. |