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Tools ·

Companies using wsi

As of 5 November 2026, 130 companies carry wsi on their website or in their DNS records; none names it in job postings yet.

As of 5 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

Largest market
United States · 84 companies
Companies with 51+ staff
3 · 2% of the footprint
Top industry
Property & construction · 26%
Team that names it most
–
Hiring on it, last 30 days
0 companies
Most often alongside
–
130companies show wsi, all sources
130on their website or in DNS records
0name it in their own job postings
0postings naming wsi, last 90 days
02Two ways we see a tool

Where wsi 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 footprint130

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

03Who uses it

Companies on wsi

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

130 companies show wsi; 0 of them have over 1,000 employees.

Filter by country, size, team and source, open verified e-mails for the decision makers, or push new matches to your CRM every week.

Start free, no card. The first 20 are above; e-mails are verified at the mail server when you open them.

04Footprint breakdown

By country, company size and industry

The 130 companies with wsi on their website or in DNS. Click a country for its own page where we have one.

By country
companiesshare
United States
8465%
Canada
1512%
Mexico
118%
United Kingdom
43%
Spain
32%
Cyprus
22%
GU
22%
United Arab Emirates
11%
India
11%
OM
11%
PE
11%
PR
11%
By company size
companiesshare
Self-employed
2116%
2-10 employees
6550%
11-50 employees
4031%
51-200 employees
22%
201-500 employees
11%
By industry
companiesshare
Property & construction
3426%
Manufacturing & industry
1814%
Business & finance services
1713%
Commerce & trade
1612%
Consumer services & leisure
108%
Public, community & associations
75%
Automotive
65%
Health care
54%
Hospitality & travel
43%
Technology & software
43%
Media & content
32%
Transport, logistics & rental
32%
05What their DNS and pages also say

The mail, hosting and web stack of wsi 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.

SendGrid109 companies · 84%Cloudflare22 companies · 17%
Microsoft 36512 companies · 9%
facebook_pixel8 companies · 6%
Google Workspace7 companies · 5%
mailchimp_transactional7 companies · 5%
Mailgun4 companies · 3%Brevo3 companies · 2%Shopify3 companies · 2%
Amazon SES2 companies · 2%
mailchannels2 companies · 2%Mailchimp2 companies · 2%PayPal2 companies · 2%apple1 companies · 1%Barracuda1 companies · 1%
barracuda_email_security1 companies · 1%
Cite this

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

130 companies carry wsi on their website or in their DNS records; no company names it in its job postings yet. (Breaknorm, 5 November 2026, https://breaknorm.co/tools/wsi)
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 wsi 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

wsi data: questions

How many companies use wsi?

130 as of 5 November 2026: 130 carry wsi 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 wsi'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 wsi. 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 wsi, 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 130 with verified e-mails and a weekly feed of new wsi users is in the product. Counting is free.

Companies and people

Get this list your way

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Every company on wsi,
with the person who owns it

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