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DKIM Selector Discovery

Discover DKIM selectors for any domain. Check common providers and validate public keys.

Scanning for DKIM selectors...

DKIM selectors found

API endpoint

GET /v1/tools/dkim/discover?domain=example.com

Interactive intelligence tool

Run the check, then ship the workflow

Use the browser tool for a fast answer, then move the same logic into scripts, monitoring, or product flows when it becomes repeatable.

Start with the live form

Enter a domain, URL, IP, email, or record and get a focused result without setup.

Review decision-ready signals

Outputs highlight statuses, risks, records, and next actions instead of raw provider noise.

Automate the workflow that works

Use the request and response examples to turn a one-off check into an API call or recipe.

Used by people at these companies

What this tool helps you decide

Each page is shaped around a practical operational question, not just a raw lookup.

Signal

See the current DNS, registration, security, pricing, or reputation evidence.

Context

Compare the result with related checks so the next move is easier to trust.

Action

Copy examples, open linked tools, or move into API documentation when you need scale.

Trust signals before you integrate

Transparent docs, authenticated requests, and visible reliability details make it easier to evaluate DomScan before you ship.

Live Service status

Check live service health and documented failure responses before you integrate.

OpenAPI API artifacts

OpenAPI, Swagger, Postman, CLI, SDK, and MCP links are one click away.

API keys Protected access

Authenticated endpoints use API keys with clear credit costs before you call them.

10,000 Free allowance

Start with 10,000 monthly credits and upgrade only when usage grows.

Key Features

Optional DKIM selector

Probe common DKIM selector names for the domain.

Provider:

Show likely mail providers when a selector matches a known pattern.

Selectors checked

See how many selectors were checked and how many were found.

Example request

GET /v1/tools/dkim/discover?domain=example.com HTTP

GET /v1/tools/dkim/discover?domain=example.com

Example response

DKIM selectors found JSON

{
  "checked": 8,
  "found": [
    { "selector": "google", "provider_hint": "Google Workspace" }
  ]
}

Built on the same API

The browser experience previews DomScan's structured endpoints, so teams can validate a use case before writing code.

Open API docs All tools

Frequently asked questions

What is a DKIM selector?

A selector points to the public key record for a signing service, which lets you publish multiple keys and rotate them over time.

Why do some selectors show a provider hint?

Common patterns like google, selector1, or k1 often map to known email platforms, so the detector can suggest a likely provider.

Why might no selectors be found?

The domain may not use DKIM, may use uncommon selector names, or may publish keys on a different subdomain or service.

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