Sub-processors
Web Watch Tower relies on a small number of providers to run the service. They process data only on our instructions and under data-processing agreements. This is the complete, current list; we update it when a provider is added or replaced and note the date below.
| Provider | Purpose | Data processed | Location |
|---|---|---|---|
| OVH SAS | Hosting of the application, the database and the primary monitoring node | All service data at rest | Warsaw, Poland (EU) |
| UpCloud Ltd | Monitoring regions in Madrid, New York, Singapore and Sydney | URLs of monitored websites and check results | Spain (EU), USA, Singapore, Australia |
| Amazon Web Services EMEA SARL (Amazon SES) | Transactional and alert e-mail (Amazon SES) | Recipient address, subject and content of the e-mails we send | Frankfurt, Germany (EU) |
| Cloudflare, Inc. | DNS, content delivery and proxy, bot protection (Turnstile), performance beacon | IP address and request metadata of visitors | Global edge network; EU-US Data Privacy Framework |
| Stripe Payments Europe, Ltd. | Payments, invoices and VAT for paid plans | Billing name, address and e-mail, payment method; card details never reach our servers | Ireland (EU) / USA |
| Google Ireland Limited | Sign in with Google, only when you choose it | Name, e-mail address, profile picture | Ireland (EU) / USA; EU-US Data Privacy Framework |
The Kraków monitoring node runs on infrastructure we operate ourselves and is not a sub-processor. Every monitoring region, ours or hosted, receives only the URLs it is asked to check and reports the results; none holds account data.
Last changed: October 25, 2026
See also: Security · Privacy policy · Terms of service · How we measure availability