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ColdSire

For sale Verified revenue

ColdSire sells Google Workspace and Microsoft 365 mailboxes to cold-email agencies, set up automatically: domains, DNS, SPF, DKIM and DMARC, profiles, and connection to Instantly and Smartlead; $252k net revenue over the last 12 months. Runs with two contractors. Revenue has declined in 2026 with no sales effort, so a buyer with its own mailbox supply or a sales team gets the most from it.

Visit coldsire.com 🇺🇸 United States Founded May 2023

The Premium Cold Email Infra that scales.

Monthly visits (est.)

189K

Revenue, 30 days

$13.5K

Growth, 30 days

-15.6%

MRR

$14.9K

Daily revenue, last 30 days

$0$500$1K$1.5K$2K09-25: $13809-2509-26: $43309-27: $75409-28: $31309-29: $9409-30: $1K10-01: $41010-02: $40210-03: $38410-0310-04: $30210-05: $48010-06: $20810-07: $28110-08: $29710-09: $1.4K10-10: $61710-11: $30610-1110-12: $66210-13: $57510-14: $8410-15: $43210-16: $10610-17: $51610-18: $60110-19: $39910-1910-20: $64010-21: $51910-22: $43010-23: $49110-24: $12610-24

Monthly revenue

$0$25K$50K25-11: $29.4K25-1125-12: $29K26-01: $29.8K26-0126-02: $24.6K26-03: $24.4K26-0326-04: $20.1K26-05: $18.5K26-0526-06: $16.8K26-07: $16K26-0726-08: $15.1K26-09: $15.3K26-0926-10: $10.7K26-10

Visits over time

Estimated from popularity rank
0250K500K750K1MOct 25: 553.8KOct 25Nov 25: 633.3KDec 25: 488.9KJan 26: 468.1KFeb 26: 414.5KFeb 26Mar 26: 385.5KApr 26: 395.9KMay 26: 350KJun 26: 322KJun 26Jul 26: 261.4KAug 26: 246KSep 26: 223.6KOct 26: 189KOct 26

Whois information

Domaincoldsire.com
RegistrarTuringSign Inc. d/b/a Cosmotown
Registrar ID1509
Created date2023-10-28 08:13:28 UTC
Expires date2026-10-28 08:13:28 UTC
Updated date2025-10-29 03:06:39 UTC
Domain statusclient delete prohibitedclient renew prohibitedclient transfer prohibitedclient update prohibited
Name serversns1.vercel-dns.comns2.vercel-dns.com
DNSSECunsigned

Raw whois

{
  "objectClassName": "domain",
  "handle": "2825210225_DOMAIN_COM-VRSN",
  "ldhName": "COLDSIRE.COM",
  "links": [
    {
      "value": "https://rdap.verisign.com/com/v1/domain/coldsire.com",
      "rel": "self",
      "href": "https://rdap.verisign.com/com/v1/domain/coldsire.com",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.verisign.com/com/v1/domain/coldsire.com",
      "rel": "related",
      "href": "https://rdap.cosmotown.com/v1/domain/COLDSIRE.COM",
      "type": "application/rdap+json"
    }
  ],
  "status": [
    "client delete prohibited",
    "client renew prohibited",
    "client transfer prohibited",
    "client update prohibited"
  ],
  "entities": [
    {
      "objectClassName": "entity",
      "handle": "1509",
      "roles": [
        "registrar"
      ],
      "links": [
        {
          "href": "http://www.cosmotown.com",
          "type": "text/html",
          "value": "https://rdap.cosmotown.com/v1/",
          "rel": "about"
        }
      ],
      "publicIds": [
        {
          "type": "IANA Registrar ID",
          "identifier": "1509"
        }
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "TuringSign Inc. d/b/a Cosmotown"
          ]
        ]
      ],
      "entities": [
        {
          "objectClassName": "entity",
          "roles": [
            "abuse"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "fn",
                {},
                "text",
                ""
              ],
              [
                "tel",
                {
                  "type": "voice"
                },
                "uri",
                "tel:+1.6504739500"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ]
            ]
          ]
        }
      ]
    }
  ],
  "events": [
    {
      "eventAction": "registration",
      "eventDate": "2023-10-28T08:13:28Z"
    },
    {
      "eventAction": "expiration",
      "eventDate": "2026-10-28T08:13:28Z"
    },
    {
      "eventAction": "last changed",
      "eventDate": "2025-10-29T03:06:39Z"
    },
    {
      "eventAction": "last update of RDAP database",
      "eventDate": "2026-10-26T18:27:57Z"
    }
  ],
  "secureDNS": {
    "delegationSigned": false
  },
  "nameservers": [
    {
      "objectClassName": "nameserver",
      "ldhName": "NS1.VERCEL-DNS.COM"
    },
    {
      "objectClassName": "nameserver",
      "ldhName": "NS2.VERCEL-DNS.COM"
    }
  ],
  "rdapConformance": [
    "rdap_level_0",
    "icann_rdap_technical_implementation_guide_1",
    "icann_rdap_response_profile_1"
  ],
  "notices": [
    {
      "title": "Terms of Service",
      "description": [
        "Service subject to Terms of Use."
      ],
      "links": [
        {
          "href": "https://www.verisign.com/domain-names/registration-data-access-protocol/terms-service/index.xhtml",
          "type": "text/html",
          "value": "https://rdap.verisign.com/com/v1/domain/coldsire.com",
          "rel": "terms-of-service"
        }
      ]
    },
    {
      "title": "Status Codes",
      "description": [
        "For more information on domain status codes, please visit https://icann.org/epp"
      ],
      "links": [
        {
          "href": "https://icann.org/epp",
          "type": "text/html",
          "value": "https://rdap.verisign.com/com/v1/domain/coldsire.com",
          "rel": "glossary"
        }
      ]
    },
    {
      "title": "RDDS Inaccuracy Complaint Form",
      "description": [
        "URL of the ICANN RDDS Inaccuracy Complaint Form: https://icann.org/wicf"
      ],
      "links": [
        {
          "href": "https://icann.org/wicf",
          "type": "text/html",
          "value": "https://rdap.verisign.com/com/v1/domain/coldsire.com",
          "rel": "help"
        }
      ]
    }
  ]
}

SEO audit

11 of 16 checks passed

72

SEO score

Response 504 ms · 71 KB

  • Served over HTTPS
  • Title tag present
  • Title length 30 to 60 charactersKeep the title between 30 and 60 characters.
  • Meta description present
  • Description length 70 to 160 charactersKeep the description between 70 and 160 characters.
  • Exactly one H1 heading
  • Uses H2 sub-headings
  • Canonical URL setAdd a rel="canonical" link to avoid duplicate content.
  • Mobile viewport tag
  • Language declared
  • Open Graph tags
  • Twitter card tags
  • Structured data (JSON-LD)Add Organization or Product JSON-LD.
  • Images have alt text
  • At least 300 words of contentAdd more indexable copy to the homepage.
  • Responds in under 1.5 seconds
Title (8 characters)
ColdSire
Description (30 characters)
The Cold Email Setup Platform.
Headings
1 H1, 4 H2, 12 H3
Words on page
280
Links
9 internal, 0 external
Structured data
None

On-page keywords

PhraseMentions
cold email6
real businesses3
premium cold2
premium cold email2
calculatorget started read1
started read why1
cold8
email8

Tech stack and pricing

Next.js Google Analytics Vercel

About ColdSire

What is ColdSire?

ColdSire sells Google Workspace and Microsoft 365 mailboxes to cold-email agencies, set up automatically: domains, DNS, SPF, DKIM and DMARC, profiles, and connection to Instantly and Smartlead; $252k net revenue over the last 12 months. Runs with two contractors. Revenue has declined in 2026 with no sales effort, so a buyer with its own mailbox supply or a sales team gets the most from it.

How popular is ColdSire?

ColdSire gets an estimated 189K visits a month.

How much revenue does ColdSire make?

ColdSire made $13.5K in the last 30 days, verified with its payment provider.