SPF · Free

SPF Record Checker

Enter a domain to retrieve its live SPF TXT record and validate the published sending policy.

SPF check results

API Endpoint

POST /v1/tools/spf/validate

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 winning workflow

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

Used by people at amazing 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.

Service status 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.

Free allowance Sign Up for Free

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

Active Example Request

Start from the curl and HTTP samples, then map the parameters into your application code.

Key Features

Live SPF record

Retrieve the SPF policy currently published in DNS for the domain.

Record validation

Check the record structure, version, terms, and common policy problems.

Readable policy details

Review qualifiers, mechanisms, includes, redirects, and the final all rule.

Example Request

Example Request http

POST /v1/tools/spf/validate
Content-Type: application/json

{"domain":"example.com"}

Example Response

Example Response json

{
  "domain": "example.com",
  "record": "v=spf1 include:_spf.example.net -all",
  "valid": true,
  "dns_lookups": 1,
  "max_lookups": 10,
  "policy": "fail"
}

Built from the same API surface

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 does the SPF checker validate?

It retrieves the domain's published SPF TXT record and checks its structure and policy terms. It does not test whether a specific email message passes SPF.

Why does my domain have no SPF record?

The domain may not publish a TXT record beginning with v=spf1, or the DNS change may not yet be visible to the resolver used for the check.

Does a valid SPF record guarantee email delivery?

No. SPF is one authentication signal. Delivery also depends on DKIM, DMARC, sender reputation, message content, and recipient policies.

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