Infrastructure you can trust

Compliance software is only as good as the infrastructure underneath it. Here's what's actually running behind SIGN SE.

The cloud infrastructure behind fiskaly SIGN SE in Sweden

Where it runs

Two independent, ISO 27001–aligned data centers with redundant power, fire protection, and multiple fiber/ISP connections for internet redundancy. Nothing about the Swedish service depends on a single facility.

Two independent ISO 27001-aligned data centers running SIGN SE

Locked down by default

  • X.509 security, handled by fiskaly

    TLS encryption on every request. The X.509-certificate security toward the Swedish control system is handled entirely by fiskaly in the background — no request reaches the system unauthenticated.

  • Application-layer firewalls

    On top of standard network protection, filtering at the data level, not just the perimeter.

  • Every request logged

    Logged for audit purposes, with all traffic monitored by a third-party security provider around the clock.

  • Yearly external audits

    Covering both operational and security practices — the same audit that keeps our SKVFS 2020:9 certification current.

Certified, and re-certified

We run two independent, certified SaaS clusters: one for SKVFS 2020:9 (the current standard, and we were the first provider certified against it, in November 2024) and a separate one still serving the older 2009:2 standard. (What these standards actually require of your POS is covered on the VAT reporting page → — this is about how we're built to meet them.)

fiskaly's certified SaaS clusters for SKVFS 2020:9 and 2009:2

Operations and support

Our status page updates automatically from synthetic monitoring and is integrated with PagerDuty — you can subscribe to it directly rather than waiting to hear from us. Support is staffed 24/7 for operational issues, with a team that's as comfortable answering an SKV compliance question as a technical one.

The fiskaly team providing 24/7 operations and support for Sweden

Proven at scale

  • 53M+

    Swedish transactions p.a.

  • 99,999%

    Uptime

  • 35 000

    Registers connected every day

Frequently asked questions

Yearly, by an external auditor, covering both operational and security practices — not a one-time certification we got and stopped thinking about.

The two data centers run active/active, not active/passive — failover is part of normal operation, not a disaster-recovery plan we hope never to use.

See what this means for your integration

Solid infrastructure is only useful if it's easy to build on. Here's how the integration works.

How fiskaly's infrastructure supports your Swedish integration