| Operating systems | Ubuntu, Debian, AlmaLinux, Rocky Linux and other commonly supported Linux distributions |
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| Web servers | Nginx and Apache HTTP Server |
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| Application runtimes | PHP, Node.js, Python and common systemd-managed applications |
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| Databases | MySQL, MariaDB, PostgreSQL |
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| Containers | Basic Docker and Docker Compose environments |
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| Domains & TLS | Basic DNS checks, HTTPS, TLS and Let’s Encrypt |
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| System services | systemd, cron, logs, firewall, CPU, memory, disk and inode checks |
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| Networking | Ports, connectivity, DNS, HTTP and HTTPS checks |
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| Basic security | SSH, firewall, file permissions, listening services and routine system updates |
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| Backup | Verification of an existing backup process; managed Cloud Backup is separate |
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