Nebula
nebula.defined.netCertificate-based encrypted overlay for your own hosts
Certificate-based encrypted overlay for your own hosts
Check certificate installation and chain problems
Use known TLS configurations as client test cases
Monitor website uptime, performance, certificates, and related site checks from one external service.
Managed Nebula networking with certificate rotation and SSO
Monitor public-facing infrastructure and certificate configuration
Use cryptographic libraries and command-line tools to work with TLS, certificates, and related standards.
Lint and format Python projects with one configurable command-line tool.
Email diagnostics with separate spam, seed-placement and visual-preview test allowances
Campaign automation with mailbox-provider diagnostics and separate transactional capacity
Define endpoint health checks and alert conditions in a lightweight self-hosted status dashboard.
A source and web editor with built-in HTML preview, file tools and language-server support.
Serve sites and reverse-proxy traffic with a configurable web server that automates HTTPS for public domains.
Watch selected URLs for technical changes, broken redirects and important renewals.
AI website builder that picks layouts, text and images for small businesses
Inspect email transport and authentication setup
Turn training videos into interactive assessments with AI questions, pass rules and certificates.
Look up mail routing and investigate server DNS
Policy-driven encryption with several recipient delivery methods
Minimal WebKit browser with direct cookie and JavaScript controls
Automated server setup with client profiles and certificate-management helpers
GNOME mail with documented GPG and S/MIME workflows
Configured browser environment for controlled online assessments