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No. 4 of 26 ·Link Building Software

ColdSEO

Web · API · paid plans from $79/mo

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Freedom report

Two barsScore 6.4

  • Free tierA free tier is on its own pricing page
  • Open codeNo open-source code on record
  • Runs widely1 of 6 device platforms
  • DocumentedPlans, terms and facts published

ColdSEO is a link-building outreach platform for SEO professionals. Its Prospect Finder searches by keyword, competitor backlinks, content topic, or uploaded domains, with filters for authority, traffic, language, country, and spam score. Hunter.io helps find verified email addresses and checks them before campaign sends. The platform uses Anthropic's Claude API to generate a personalized opening sentence for each prospect. Campaigns can send through Gmail, Google Workspace, Microsoft 365, or custom SMTP. Replies are threaded and categorized, and campaigns periodically scan replied prospects' sites for backlinks to a target URL. Deliverability features include inbox rotation, send caps per inbox, warmup, unsubscribe links, and List-Unsubscribe headers. The free plan includes one inbox, 50 prospect credits and 100 email sends per month, 25 AI personalizations, and one active campaign. Pro is 79.00 USD per month; Agency is 199.00 USD per month. Monthly plan credits do not roll over, and campaigns pause at their cap.

Who it is for

ColdSEO identifies SEO consultants and freelancers, in-house SEO leads, and link-building agencies as its intended users. It may suit teams seeking prospect discovery, campaign outreach, and backlink placement tracking.

What is good

  • Searches prospects using multiple discovery methods.
  • Connects to Gmail, Google Workspace, Microsoft 365, or custom SMTP.
  • Threads and categorizes replies.
  • Offers a free plan.

What to know first

  • Monthly plan credits do not roll over.
  • Campaigns pause at the monthly cap.
  • No free trial is listed.

Verdict

ColdSEO brings prospect research, personalized outreach, and backlink tracking into one platform. Its monthly credit limits and plan caps are important to consider when choosing a plan.

ColdSEO plans and pricing

All plans
Free Free forever 1 connected inbox · 50 prospect credits/mo · 100 email sends/mo · 25 AI personalizations/mo · 1 active campaign coldseo.com · 29 Sept 2026
Pro $79/mo $758/year — save $189 5 connected inboxes · 2,000 prospect credits/mo · 5,000 email sends/mo · 1,000 AI personalizations/mo · 10 active campaigns coldseo.com · 29 Sept 2026
Agency $199/mo $1,910/year — save $478 25 connected inboxes · 10,000 prospect credits/mo · 25,000 email sends/mo · 5,000 AI personalizations/mo · unlimited campaigns · 5 seats coldseo.com · 29 Sept 2026

Compared on link building software

Free plan
Yes
Paid from
$79/mo
Prospect discovery
Yes
Outreach automation
Yes
Placement monitoring
Yes
Digital PR workflows
Yes
Monthly prospect limit
$2,000/mo
Included team seats
1 seats
API access
No

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