---
title: "Free SPF Checker: Stop Your SPF Record Breaking Email"
description: "A short walkthrough of the free Warm Inboxes SPF checker: look up a domain’s SPF record, count its DNS lookups against the limit, and see what would break it."
url: https://warminboxes.com/videos/spf-checker
breadcrumb: "Home > Tool demos > SPF Checker"
---
# Free SPF Checker: Stop Your SPF Record Breaking Email

Tool demo · SPF Checker

A short walkthrough of the free Warm Inboxes SPF checker: look up a domain’s SPF record, count its DNS lookups against the limit, and see what would break it.

## SPF Checker

Look up existing SPF records or build a new one, with recursive lookup counting.

[Run the SPF Checker →](https://warminboxes.com/spf-checker) Free, no account.