Free cold email tools

Score any page 0–100 for whether ChatGPT, Perplexity and Google's AI answers can cite it.

Check if your sending domain is on the Spamhaus DBL or SURBL — instant, no signup.

Burn verdicts for every sending domain, read from your own Instantly, Smartlead or EmailBison data.

Build a valid SPF record from your sending providers, with the 10-lookup limit checked.

Look up and read any domain's DMARC record — policy, coverage, alignment, and reporting.

Paste a lead list and see who's on Google, Microsoft 365, or a security gateway — via live MX lookup.

Score your cold email copy for spam-trigger words and structural red flags.

How many mailboxes and domains your lead target needs — or what your current fleet can safely send.

Turn real costs and hours into a defensible monthly retainer and per-meeting price.

Every technical thing behind inbox placement — SPF, DKIM, DMARC, bulk-sender rules, blacklists — and the exact threshold Coldops checks each at.

The six-step beginner path: domain setup, warmup, a clean list, a sequence that replies, safe volume, monitoring.

The proven 5-step sequence — copy-ready, with the reasoning behind each step.

Lead data, sending, warmup, AI, and monitoring — the tools that actually hold up, layer by layer.