Lead Finder / Companies using

Jira is the most common of the 6 business tools we can read from company DNS, at 22.5% of 13,515 domains.

On 15 November 2026 we read the public DNS of 13,515 company domains and counted the ones that publish a record that proves a customer of Jira, Salesforce, HubSpot, Zendesk, Stripe and Mailchimp. Pick a tool to see the companies, the industries and the countries.

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13,515

company domains read

6

tools with a public DNS record

3,037

companies publish the Jira record

45.4%

of US companies publish the Jira record

Pick a tool to see which companies use it, in which industries and countries.

Jira leads the 6 tools, and Mailchimp is the least common.

Share of company domains that publish each tool's record

13,515 domains, read 15 November 2026

ToolCompaniesUS share
Jira3,03745.4%
Salesforce1,10315.1%
HubSpot4866.4%
Zendesk4846.1%
Stripe3567.1%
Mailchimp3183.4%

Source: Emailchaser DNS reading of 13,515 company domains, 15 November 2026.

Each tool leaves a different record in a company's DNS.

ToolWhat the company publishesThe record
JiraAtlassian domain verificationatlassian-domain-verification=<token>
SalesforceSPF include for Salesforceinclude:_spf.salesforce.com
HubSpotSPF include for HubSpotinclude:<account>.spf0x.hubspotemail.net
ZendeskSPF include for Zendeskinclude:mail.zendesk.com
StripeStripe domain verificationstripe-verification=<token>
MailchimpSPF include for Mailchimpinclude:servers.mcsv.net

These are the questions people ask about companies that use these tools.

Where does this data come from?

Our own reading of public DNS. On 15 November 2026 we looked up the TXT records of 13,783 company domains and counted the records each tool's vendor tells its customers to publish.

Which tools can you detect?

Jira, Salesforce, HubSpot, Zendesk, Stripe and Mailchimp. A tool is included only when its vendor documents a DNS record that customers add, so a tool whose vendor documents no such record is not here.

Why are the numbers lower than the tools' own customer counts?

We count a company only when the record sits in its own domain's TXT records, so every figure is a minimum. Smaller private companies are not on the panel either.

Can I email the companies on these pages?

The pages name companies, not people. To reach the decision makers at companies like these, build a list in Lead Finder by job title, industry and company size.

We read one public DNS record at each company to count every tool.

The panel13,783 company domains: businesses Wikidata records as listed on a stock exchange, with an official website.
The recordsEach is documented by the tool's own vendor, and the links are in the table above.
The readOne DNS lookup of each domain's TXT records on 15 November 2026, 13,515 domains answered.
What it missesA company counts only when the record sits in its own TXT records, so every figure is a minimum.

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