Tools ·

Companies using heysender_

As of 4 November 2026, 194 companies carry heysender 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
Denmark · 162 companies
Companies with 51+ staff
13 · 7% of the footprint
Top industry
Commerce & trade · 64%
Team that names it most
–
Hiring on it, last 30 days
0 companies
Most often alongside
–
194companies show heysender, all sources
194on their website or in DNS records
0name it in their own job postings
0postings naming heysender, last 90 days
02 — Two ways we see a tool

Where heysender 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 footprint194

Companies whose own pages load heysender's scripts or embeds, or whose domain's mail and hosting records (SPF, DKIM, MX, CNAME) point at heysender. 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 heysender. 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 heysender. The rest of the posting population (0) runs heysender without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on heysender

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

Seen through the website or DNS only

Companies with 1,000+ employees whose website or DNS carries heysender but whose postings never name it: the part of the market job data alone misses.

194 companies show heysender; 1 of them have over 1,000 employees.

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04 — Footprint breakdown

By country, company size and industry

The 194 companies with heysender on their website or in DNS. Click a country for its own page where we have one.

By country
companiesshare
Denmark
16284%
Norway
95%
Sweden
95%
Germany
32%
Italy
32%
United States
32%
Finland
21%
Netherlands
21%
United Kingdom
11%
By company size
companiesshare
Self-employed
3920%
2-10 employees
8242%
11-50 employees
6031%
51-200 employees
53%
201-500 employees
21%
501-1000 employees
42%
1001-5000 employees
21%
By industry
companiesshare
Commerce & trade
12464%
Technology & software
2513%
Manufacturing & industry
126%
Business & finance services
74%
Consumer services & leisure
63%
Public, community & associations
53%
Automotive
42%
Media & content
42%
Health care
21%
Utilities & infrastructure
21%
Agriculture & forestry
11%
Hospitality & travel
11%
05 — What their DNS and pages also say

The mail, hosting and web stack of heysender 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.

Microsoft 36592 companies · 47%
Klaviyo71 companies · 37%Cloudflare57 companies · 29%Mailchimp38 companies · 20%
microsoft_teams35 companies · 18%
Shopify32 companies · 16%meta29 companies · 15%
Google Workspace28 companies · 14%
facebook_pixel25 companies · 13%
tawk.to25 companies · 13%Zendesk25 companies · 13%SendGrid24 companies · 12%herodesk23 companies · 12%sparkpost22 companies · 11%
mailchimp_transactional19 companies · 10%
microsoft_intune19 companies · 10%
Cite this

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

194 companies carry heysender 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/heysender)
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 heysender 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

heysender data: questions

How many companies use heysender?

194 as of 4 November 2026: 194 carry heysender 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 heysender'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 heysender. 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 heysender, 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 194 with verified e-mails and a weekly feed of new heysender users is in the product. Counting is free.

Companies and people

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