Tools ·

Companies using 101domain_

As of 4 November 2026, 386 companies carry 101domain 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 · 144 companies
Companies with 51+ staff
39 · 10% of the footprint
Top industry
Technology & software · 31%
Team that names it most
–
Hiring on it, last 30 days
0 companies
Most often alongside
–
386companies show 101domain, all sources
386on their website or in DNS records
0name it in their own job postings
0postings naming 101domain, last 90 days
02 — Two ways we see a tool

Where 101domain 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 footprint386

Companies whose own pages load 101domain's scripts or embeds, or whose domain's mail and hosting records (SPF, DKIM, MX, CNAME) point at 101domain. 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 101domain. 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 101domain. The rest of the posting population (0) runs 101domain without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on 101domain

No company names 101domain 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 101domain but whose postings never name it: the part of the market job data alone misses.

386 companies show 101domain; 3 of them have over 1,000 employees.

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04 — Footprint breakdown

By country, company size and industry

The 386 companies with 101domain on their website or in DNS. Click a country for its own page where we have one.

By country
companiesshare
United States
14437%
United Arab Emirates
164%
United Kingdom
144%
Ireland
103%
Germany
82%
Australia
72%
Hungary
62%
India
62%
Canada
51%
Czechia
51%
Italy
51%
Norway
51%
By company size
companiesshare
Self-employed
14237%
2-10 employees
4712%
11-50 employees
7319%
51-200 employees
267%
201-500 employees
72%
501-1000 employees
21%
1001-5000 employees
31%
10,001+ employees
10%
By industry
companiesshare
Technology & software
12131%
Commerce & trade
339%
Business & finance services
298%
Manufacturing & industry
298%
Media & content
277%
Consumer services & leisure
267%
Public, community & associations
92%
Hospitality & travel
72%
Automotive
51%
Property & construction
51%
Transport, logistics & rental
51%
Health care
31%
05 — What their DNS and pages also say

The mail, hosting and web stack of 101domain 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.

Cloudflare109 companies · 28%
red_sift_ondmarc73 companies · 19%
Google Workspace69 companies · 18%
Microsoft 36534 companies · 9%
facebook_pixel18 companies · 5%
Mailchimp17 companies · 4%SendGrid17 companies · 4%HubSpot15 companies · 4%Shopify15 companies · 4%
Amazon SES10 companies · 3%
Microsoft Entra ID9 companies · 2%
microsoft_intune9 companies · 2%
meta8 companies · 2%Zendesk8 companies · 2%
amazon_cloudfront7 companies · 2%
AWS Route 537 companies · 2%
Cite this

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

386 companies carry 101domain 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/101domain)
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 101domain 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

101domain data: questions

How many companies use 101domain?

386 as of 4 November 2026: 386 carry 101domain 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 101domain'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 101domain. 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 101domain, 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 386 with verified e-mails and a weekly feed of new 101domain users is in the product. Counting is free.

Companies and people

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Every company on 101domain,
with the person who owns it

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