Technologies / Cloudflare / Have I Been Pwned
Companies using Cloudflare and Have I Been Pwned
20 companies in our data have public evidence for both Cloudflare and Have I Been Pwned, and 5 name both in their own subprocessor list. Each company below links to the source for every claim. Our coverage is partial, so this is not everyone.
The companies
Strongest evidence first: a company naming both in its own subprocessor list comes before one seen on its website or in job postings.
Subprocessor listPrivacy policyWebsiteJob postings
| Company | Cloudflare | Have I Been Pwned |
|---|---|---|
The two technologies
Cloudflare
Cloud and infrastructureCloudflare is a platform for building, securing, and scaling applications, agents, and workforce workloads without managing infrastructure. It is used to run security, connectivity, and code on a global network close to users, applications, and sites.
Summarized from cloudflare.com on 8 Nov 2026.
under 1% of the 22,927 companies we see using Cloudflare also show the other.
All 22,927 companies using Cloudflare2,133 name it as a subprocessorMore in Cloud and infrastructure
Have I Been Pwned
Security and identityHave I Been Pwned is a service that lets you check whether your email address has appeared in a data breach. It is used to see where your email was exposed and to get notified when it appears in future breaches.
Summarized from haveibeenpwned.com on 8 Nov 2026.
100% of the 20 companies we see using Have I Been Pwned also show the other.
All 20 companies using Have I Been Pwned12 name it as a subprocessorMore in Security and identity
Industries
Among the companies above, by our own classification of their homepage.
Other pairs
Companies with their own evidence for both.
More with Cloudflare
Questions
How many companies use both Cloudflare and Have I Been Pwned?
20 companies in StrataDB's data have public evidence for both, and 5 of them name both in their own subprocessor list, the strongest evidence we hold. Our coverage is partial, so the real number is higher.
Which companies use Cloudflare and Have I Been Pwned?
Claimory, HexVault, IronWiFi, Lend System and Upfort, and 15 more companies. Each one links to the evidence behind it.
How does StrataDB know a company uses Cloudflare and Have I Been Pwned?
From four kinds of public evidence: subprocessor lists, privacy policies, website code and job postings. Each is kept apart with its source and the date we saw it. A company missing here means we found no evidence, not that it does not use them.
Find every company using Cloudflare and Have I Been Pwned
See the full list with the source for each company, and run the same lookup for any technology from the API, Claude or your browser.
- Every company and vendor, with its public source
- 100 API calls a month, plus MCP and the Chrome extension
- Work email only. No card, no sales call