coldstack.so
coldstack.so is a live English-language website hosted on Amazon.com, Inc. (AS16509) in the United States, served by Vercel. cl0q first saw it on 2026-08-02 and last crawled it on 2026-08-06. It resolves to 216.150.1.1 and has mail (MX) records set up. Its favicon is fingerprinted by SHA-256, so you can find every other site that serves the same icon.
How the site describes itself:
ColdStack.so - Unified Outreach Inbox in Slack | Manage Leads 3x Faster
Streamline your cold email outreach with ColdStack. Reply to leads from Instantly, Smartlead, and EmailBison directly in Slack. Boost response times by 3x and close more deals.
| Status | 200 OK — live & indexed by cl0q |
|---|---|
| First seen | 2026-08-02 |
| Last crawled | 2026-08-06 |
| IPv4 | 216.150.1.1 |
| Network | AS16509 Amazon.com, Inc. · California |
| Mail (MX) | mail.protonmail.ch,mailsec.protonmail.ch |
| Language | en |
| Server | Vercel |