Tools ·

Companies using reftab_

As of 4 November 2026, 296 companies carry reftab 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 · 183 companies
Companies with 51+ staff
230 · 78% of the footprint
Top industry
Business & finance services · 22%
Team that names it most
–
Hiring on it, last 30 days
0 companies
Most often alongside
–
296companies show reftab, all sources
296on their website or in DNS records
0name it in their own job postings
0postings naming reftab, last 90 days
02 — Two ways we see a tool

Where reftab 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 footprint296

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

03 — Who uses it

Companies on reftab

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

296 companies show reftab; 47 of them have over 1,000 employees.

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04 — Footprint breakdown

By country, company size and industry

The 296 companies with reftab on their website or in DNS. Click a country for its own page where we have one.

By country
companiesshare
United States
18362%
United Kingdom
2910%
Australia
279%
Canada
165%
Germany
93%
United Arab Emirates
41%
France
41%
Netherlands
31%
Norway
31%
Italy
21%
South Africa
21%
Belgium
10%
By company size
companiesshare
Self-employed
52%
2-10 employees
155%
11-50 employees
4315%
51-200 employees
8930%
201-500 employees
5318%
501-1000 employees
3713%
1001-5000 employees
3813%
5001-10000 employees
62%
10,001+ employees
72%
By industry
companiesshare
Business & finance services
6622%
Technology & software
5218%
Consumer services & leisure
3411%
Manufacturing & industry
3110%
Public, community & associations
2910%
Property & construction
217%
Health care
165%
Commerce & trade
145%
Media & content
93%
Automotive
72%
Utilities & infrastructure
72%
Transport, logistics & rental
31%
05 — What their DNS and pages also say

The mail, hosting and web stack of reftab 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 365281 companies · 95%
apple184 companies · 62%
microsoft_intune183 companies · 62%
Microsoft Entra ID179 companies · 60%
microsoft_teams154 companies · 52%
Anthropic144 companies · 49%Atlassian137 companies · 46%Cloudflare127 companies · 43%SendGrid120 companies · 41%Mailchimp110 companies · 37%
Google Workspace89 companies · 30%
OpenAI79 companies · 27%HubSpot70 companies · 24%
Amazon SES68 companies · 23%
Salesforce68 companies · 23%Adobe52 companies · 18%
Cite this

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

296 companies carry reftab 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/reftab)
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 reftab 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

reftab data: questions

How many companies use reftab?

296 as of 4 November 2026: 296 carry reftab 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 reftab'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 reftab. 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 reftab, 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 296 with verified e-mails and a weekly feed of new reftab users is in the product. Counting is free.

Companies and people

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