Tools ·

Companies using heartbeat_

As of 4 November 2026, 656 companies carry heartbeat on their website or in their DNS records; none names it in job postings yet.

As of 4 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

Largest market
United States · 446 companies
Companies with 51+ staff
7 · 1% of the footprint
Top industry
Consumer services & leisure · 44%
Team that names it most
–
Hiring on it, last 30 days
0 companies
Most often alongside
–
656companies show heartbeat, all sources
656on their website or in DNS records
0name it in their own job postings
0postings naming heartbeat, last 90 days
02 — Two ways we see a tool

Where heartbeat shows up

Each population is counted on its own. We never add them up without saying so, because they answer different questions.

Website and DNS footprint656

Companies whose own pages load heartbeat's scripts or embeds, or whose domain's mail and hosting records (SPF, DKIM, MX, CNAME) point at heartbeat. From our crawl of 41.5M company websites and the DNS sweep behind it. Reach: the tool is in the building.

Job postings0

Companies whose own postings say the team works in heartbeat. Read hourly from ~70 applicant tracking systems, with the function, a quote and a date. Intent: the team that runs it is hiring.

Both0

Companies in the footprint whose postings also name heartbeat. The rest of the posting population (0) runs heartbeat without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on heartbeat

No company names heartbeat in its job postings with enough confidence to list yet; the companies below carry it on their website or in DNS.

656 companies show heartbeat; 0 of them have over 1,000 employees.

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04 — Footprint breakdown

By country, company size and industry

The 656 companies with heartbeat on their website or in DNS. Click a country for its own page where we have one.

By country
companiesshare
United States
44668%
United Kingdom
8313%
Canada
264%
Australia
213%
Germany
183%
India
61%
France
41%
Italy
30%
United Arab Emirates
20%
Austria
20%
Belgium
20%
Switzerland
20%
By company size
companiesshare
Self-employed
48474%
2-10 employees
9815%
11-50 employees
619%
51-200 employees
61%
201-500 employees
10%
By industry
companiesshare
Consumer services & leisure
29144%
Business & finance services
11518%
Media & content
7712%
Public, community & associations
6710%
Technology & software
538%
Health care
274%
Commerce & trade
91%
Property & construction
71%
Manufacturing & industry
30%
Hospitality & travel
10%
05 — What their DNS and pages also say

The mail, hosting and web stack of heartbeat companies

Other tools found on the same companies' websites or in their DNS records. Mail providers and senders come from SPF, DKIM and MX; the rest from page code.

Google Workspace360 companies · 55%
Cloudflare172 companies · 26%
facebook_pixel132 companies · 20%
SendGrid106 companies · 16%MailerLite95 companies · 14%
Microsoft 36588 companies · 13%
Mailchimp67 companies · 10%Vercel62 companies · 9%meta61 companies · 9%highlevel50 companies · 8%kit50 companies · 8%
google_cloud_dns_google_domains43 companies · 7%
microsoft_teams43 companies · 7%
Stripe43 companies · 7%Brevo38 companies · 6%
Amazon SES37 companies · 6%
Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

656 companies carry heartbeat on their website or in their DNS records; no company names it in its job postings yet. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/heartbeat)
How we know

Read from the source, not self-reported

Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →

  • Website codeScripts, tags and embeds found on the company's own pages in our crawl of 41.5M sites. A tool counts once per company.
  • DNS recordsSPF includes, DKIM selectors, MX and CNAME records of the company's domain that point at heartbeat or another vendor. Swept in cycles; dedicated mail-provider and hosting facets open once coverage passes 80% per country.
  • Job postingsRead hourly from the applicant tracking systems behind company career sites. A tool counts when the employer's own text names it as the team's system; candidate wish-lists and apply boilerplate are excluded. Confidence low, medium or high per company.
  • Sending infrastructureCold-e-mail sending domains are look-alike domains on a provider's infrastructure (DNS records, certificate logs) that redirect to the company. Absence is not evidence: only companies with a found sending domain are counted.
  • CompaniesCountry, size and industry come from the company profile we build from its website; headcount from LinkedIn where known, otherwise estimated. Job boards, portals and aggregators are kept out of lists.
FAQ

heartbeat data: questions

How many companies use heartbeat?

656 as of 4 November 2026: 656 carry heartbeat on their website or in their DNS records and 0 name it in their own job postings; 0 show up in both. We keep the two counts apart because they measure different things.

What does "website or DNS" mean?

Our crawler finds heartbeat's scripts, embeds and tags on the company's own pages, and our DNS sweep reads the domain's mail and hosting records (SPF includes, DKIM selectors, MX, CNAMEs) that point at heartbeat. Either one puts the company in the footprint. The sweep is still running, so this number grows week by week.

Why is the job-posting number so much smaller?

A posting only names a tool when the team that will use it is hiring and chooses to say so. That makes it a smaller but stronger signal: it tells you which team runs heartbeat, with a quote and a date. The footprint tells you reach.

How fresh is this?

Career sites are read hourly, websites are re-crawled on a rolling schedule and DNS is re-swept in cycles. The date at the top is when these counts were computed.

Can I get the list?

Yes. The first 20 are on this page; the full 656 with verified e-mails and a weekly feed of new heartbeat users is in the product. Counting is free.

Companies and people

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Every company on heartbeat,
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