---
title: "Free Cold Email Tool Demos: Short Videos, One Per Tool"
description: "Short videos of the free WarmInboxes deliverability tools: what you paste in, what comes back, and what to do with it. One per tool, under a minute each."
url: https://warminboxes.com/videos
breadcrumb: "Home > Tool demos"
---
# Tool demos

Short videos of the free WarmInboxes deliverability tools: what you paste in, what comes back, and what to do with it. One per tool, under a minute each.

## All 15 tool demos

One short video per free tool: what you paste in, what comes back, and what to do with it.

- [Is Your Domain Blacklisted? Check 20 Blacklists Free](https://warminboxes.com/videos/blacklist-checker) — A 60-second walkthrough of the free Warm Inboxes blacklist checker: paste a domain or IP, see every major blacklist it appears on, and find out what to do about a listing before it costs you a campaign.

- [Grade Your Email Deliverability A to F (Free Tool)](https://warminboxes.com/videos/deliverability-checker) — A 60-second walkthrough of the free Warm Inboxes deliverability checker: grade any sending domain A to F across SPF, DKIM, DMARC, MX, blacklists and domain age, and see exactly which record is dragging the score down.

- [Will Your Cold Email Land in Spam? Free Spam Checker](https://warminboxes.com/videos/spam-checker) — A short walkthrough of the free Warm Inboxes spam checker: paste a subject and body, see the weighted spam triggers it finds, and fix them before the send.

- [Split Your Lead List by Google vs Outlook (Free)](https://warminboxes.com/videos/esp-segmenter) — A short walkthrough of the free Warm Inboxes ESP segmentation tool: upload a lead list, split it by Google, Microsoft and gateway inboxes, and see how many mailboxes each segment needs.

- [How Many Cold Email Inboxes Do You Need?](https://warminboxes.com/videos/calculator) — A short walkthrough of the free Warm Inboxes infrastructure calculator: enter a daily send target and get the number of inboxes and domains it takes, with the monthly cost.

- [Free Nameserver Checker: Find Any Domain's DNS Host](https://warminboxes.com/videos/nameserver-checker) — A short walkthrough of the free Warm Inboxes nameserver checker: look up the NS records for one domain or a whole CSV and see which DNS host each one points at.

- [Are the Links in Your Emails Blacklisted? SURBL Check](https://warminboxes.com/videos/surbl-checker) — A short walkthrough of the free Warm Inboxes SURBL checker: bulk-check the domains in your links against the SURBL URI blocklist before they cost you a campaign.

- [Can This Domain Use Google Workspace? Check Free](https://warminboxes.com/videos/google-domain-checker) — A short walkthrough of the free Warm Inboxes Google domain checker: see whether a domain is already tied to a Google Workspace account before you try to sign it up.

- [Free Email Verifier: Is This Address Real?](https://warminboxes.com/videos/email-verifier) — A short walkthrough of the free Warm Inboxes email verifier: paste addresses and see which are valid, risky or invalid from syntax, MX, disposable and role checks.

- [Generate SPF, DKIM and DMARC Records in Seconds](https://warminboxes.com/videos/record-generator) — A short walkthrough of the free Warm Inboxes record generator: pick your sending platform and get correct SPF, DKIM and DMARC records to paste into DNS.

- [Domain Expiry Checker: Don't Lose Your Sending Domains](https://warminboxes.com/videos/domain-expiry-checker) — A short walkthrough of the free Warm Inboxes domain expiry checker: check the expiration dates on your sending domains and catch a renewal before it lapses.

- [Free DNS Checker: MX, TXT, CNAME and A Records](https://warminboxes.com/videos/dns-checker) — A short walkthrough of the free Warm Inboxes DNS checker: query MX, TXT, CNAME, A and the other record types for any domain in one lookup.

- [Free DKIM Checker: Is Your Email Actually Signed?](https://warminboxes.com/videos/dkim-checker) — A short walkthrough of the free Warm Inboxes DKIM checker: scan the common selectors for a domain and validate the signing key it publishes.

- [Free SPF Checker: Stop Your SPF Record Breaking Email](https://warminboxes.com/videos/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.

- [Free DMARC Checker: Is Your DMARC Record Working?](https://warminboxes.com/videos/dmarc-checker) — A short walkthrough of the free Warm Inboxes DMARC checker: validate a domain’s DMARC record, read its policy and tags, and see what the verdicts mean.