What Companies Use Cloudflare?

What companies use Cloudflare? Two public signals answer it. A website scan sees Cloudflare on almost any site that sits behind it, because response headers and nameservers give it away. Job postings show which companies build on it, with its developer platform or security products named in the role. Here is what postings say, and how to combine both signals.

The employers with the most active postings naming Cloudflare, as of 2026-09-09:

• Cloudflare
• Deepgram
• Lovable
• turing
• HERCULES
• Focus Group
• Rippling
• Wordware
• Method Financial
• Genki

The postings list is short next to the website signal: <0.5% of active postings name Cloudflare, because most staff at a company behind Cloudflare never touch it. The names that do appear are companies staffing teams that build on it, plus Cloudflare itself, whose own postings name its products. The full list is on the companies using Cloudflare page.

How to find out what companies use Cloudflare

1. Scan the website first. Call POST /v1/stack/scan with the domain. A site behind Cloudflare typically answers with a server: cloudflare header and a cf-ray header, and its nameservers point at Cloudflare. The scan reports the detection with a confidence score. This is the broad signal, and it covers companies that never post a role naming the product.
2. Search postings for the builders. Call POST /v1/jobs/search with skills_or set to ["cloudflare"]. These are engineering, platform and security roles, and each row’s technology_slugs shows what sits next to Cloudflare in the same posting.
3. Separate customer from vendor. Cloudflare’s own postings dominate any skill search for its name. Drop them with the company field, then read the rest: a posting that lists Cloudflare among ten tools is weaker evidence than one that asks for experience building on it.
4. Cut by industry and size. Use isic_division_or and the employee count filters, or read the chart below. Postings naming Cloudflare skew towards software companies, but the size bands show it is not a small-company story alone.
5. Watch for change. Rerun with discovered_at_gte. A first posting naming Cloudflare at a company whose site already runs behind it is a sign the team is building on it rather than only routing traffic through it.

How many companies use Cloudflare? Postings cannot count companies, and for Cloudflare they understate adoption more than for most technologies, since the product works without anyone being hired for it. Treat the posting share as a floor on the builders and the website scan as the measure of the customer base. What a stack is, and why the two signals differ, is in what is a tech stack.

Where JobsPipe fits

JobsPipe is a jobs data API that collects live postings from LinkedIn, Indeed, Y Combinator, Naukri, Workday, Greenhouse, Workable, SmartRecruiters, Ashby, Lever and Paylocity, returns them as one schema with closure tracking and a ghost score, and includes a free tier of 1,000 jobs a month. The same key runs the website scan at jobspipe.dev:

curl -X POST https://api.jobspipe.dev/v1/stack/scan \
  -H "Authorization: Bearer $JOBSPIPE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "domain": "example.com", "mode": "auto" }'

The response lists detected technologies with categories and confidence. Pair it with a postings search on skills_or and you have both sides of the answer. The scan is documented on the stack scan page.