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Technologies / Cloudflare / Sift Science

Companies using Cloudflare and Sift Science

7 companies in our data have public evidence for both Cloudflare and Sift Science, and 4 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.

7companies use both
under 1%of Cloudflare users
117%of Sift Science users
4name both as subprocessors

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

CompanyCloudflareSift Science
AWeberaweber.comAWeber provides email marketing, automation, landing pages, and ecommerce tools.Marketing
Shippogoshippo.comShippo provides a shipping app and API for printing labels, connecting stores and carriers, and managing tracking and returns.Developer toolsE-commerce
Kickboxkickbox.comKickbox provides email verification and list-cleaning services, including an email verification API and deliverability consulting.
PartnerStackpartnerstack.comPartnerStack provides a partner relationship management platform for running co-sell, affiliate, influencer and customer referral programs.
Hopperhopper.comHopper lets users search for and book stays, flights, cars, and packages.Travel and hospitality
aghanim.comAghanim provides direct-to-consumer enablement and web-based monetization tools for mobile games.Gaming
Closeclose.comClose is a sales CRM that combines calling, email, SMS, pipeline management, reporting, and an AI sales agent named Chloe into a single platform.Sales

The two technologies

Cloudflare

Cloud and infrastructure

Cloudflare 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 23,351 companies we see using Cloudflare also show the other.

All 23,351 companies using Cloudflare2,171 name it as a subprocessorMore in Cloud and infrastructure

Sift Science

Security and identity

Sift Science is a fraud detection platform. It is used to detect risk, automate decisions, and stop fraud across the customer journey.

Summarized from sift.com on 8 Nov 2026.

117% of the 6 companies we see using Sift Science also show the other.

All 6 companies using Sift ScienceMore in Security and identity

Other pairs

Companies with their own evidence for both.

More with Cloudflare

Google Workspace14,295companiesGoogle Tag Manager9,200companiesGoogle Analytics8,268companiesNext.js6,397companiesAmazon Web Services5,350companiesVercel4,820companies

More with Sift Science

Amazon Web Services6companiesGoogle Tag Manager6companiesGoogle Workspace6companiesStripe5companies

Questions

How many companies use both Cloudflare and Sift Science?

7 companies in StrataDB's data have public evidence for both, and 4 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 Sift Science?

AWeber, Shippo, Kickbox, PartnerStack and Hopper, and 2 more companies. Each one links to the evidence behind it.

How does StrataDB know a company uses Cloudflare and Sift Science?

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 Sift Science

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