Icinga 2
icinga.comCheck hosts, network resources, and services, then notify teams when availability changes.
Check hosts, network resources, and services, then notify teams when availability changes.
Connect distributed services through lightweight subject-based messaging, with optional persistence via JetStream.
Track distributed-team hours and review time, project, and workforce activity reports.
An open-source distributed NoSQL database built around partitioned rows.
Build a distributed messaging and streaming system with topic subscriptions and persistent message storage.
Monitors infrastructure, distributed applications, and user experience through a hosted Splunk service.
Test email and SMS workflows by routing app-generated messages to controllable inboxes and numbers.
Query relational, JSON, geospatial, text, and time-series data through one distributed SQL database.
Interactive email campaigns with AMP forms, journeys and fallback content
Email diagnostics with separate spam, seed-placement and visual-preview test allowances
AWS email sending and receiving with region-specific production access
Collaborative email design with workspace-specific brands, approvals and export connectors
Free no-signup email tools and guides for email marketers.
Distribute an FTP namespace across transfer nodes
AI email tool that writes and designs emails for Klaviyo.
Track and synchronize large files across distributed storage
Provision a managed distributed SQL cluster and connect an application through its generated connection details.
Algorithms, distributed systems and engineering ideas
Email production with reusable modules and explicit shared-versus-local edits
Sender-independent email previews and quality checks with per-screenshot usage
Email delivery with retry keys, inbound mail and contact-based broadcasts
Hosted email design with independent saved blocks, synced sections and export controls
Email campaigns and automation within a wider messaging workspace
Email preparation, rendering checks and ongoing monitoring in one current platform