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Stories, guides, and lessons from the world of observability

Last9 Named a Gartner® Cool Vendor in AI for SRE and Observability

Last9 Named a Gartner® Cool Vendor in AI for SRE and Observability

Gartner recognizes Last9 in their latest Cool Vendor report for unified telemetry and agentic SDK—moving teams from reactive monitoring to proactive ops.

Nishant Modak

Nishant Modak

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An isometric line drawing: three needle meters are cabled into a central switchboard console whose grid of indicator lights has exactly one lamp lit, standing for many scattered signals correlated down to a single answer

What Is AIOps? Definition, How It Works, and Real Examples

AIOps explained in plain terms: what it means, how it differs from AI-SRE and MLOps, how it detects problems, and whether a small team needs it.

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Sejal Pandey

Sejal Pandey

Isometric line art of an oscilloscope, an analog meter, and a reel-to-reel tape deck all cabled into a central console with a lime-glowing waveform screen, showing one AI system watched through several observability signals at once

Best AI Observability Tools in 2026: 8 Tools Compared

Eight LLM and AI agent observability platforms compared: what each tracks, pricing and free tiers, self-hosting options, and who each is built for.

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Sejal Pandey

Sejal Pandey

An isometric line drawing: a small analog meter and a reel-to-reel tape recorder, one on each side, are wired by cables into a central mechanical adding machine whose display glows lime.

Cloud Cost Management for Observability: A Practical Guide

Observability spend is outgrowing infrastructure budgets. What drives the cost up, how pricing models work, and a practical framework to manage it.

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Sejal Pandey

Sejal Pandey

A branch point labeled leaving Cribl forking into three paths: open-source self-hosted tools, commercial angle-specific platforms, and Last9's full-stack platform

6 Cribl Alternatives Worth Evaluating in 2026

Cribl's credit pricing and setup complexity send teams looking elsewhere. Compare 6 real Cribl competitors and alternatives, for observability and SecOps.

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Sejal Pandey

Sejal Pandey

The same seven-layer observability stack twice — sealed behind one abstraction when you buy it, and drawn layer by layer, each with the role that owns it, when you build it

Why you should (not) build your own observability stack

If you are able to build it better than your vendor, then change your vendor. Not build it.

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Rishi Agrawal

Rishi Agrawal

An isometric line drawing: a needle meter, a tape deck and an oscilloscope are wired into a central switchboard console, one cable leaves it to ring a single glowing alarm bell, and a lever stands apart on its own plinth, connected to nothing

Incident Response Automation: A Practical Playbook

A stage-by-stage playbook for automating incident response: what to automate at detection, triage, and remediation, what to deliberately leave manual, and a checklist to run against your current setup.

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Sejal Pandey

Sejal Pandey

Anatomy of an error log line: annotated Nginx, Apache, and Linux syslog examples

Reading Application Error Logs: Nginx, Apache & System Logs

A quick-reference guide to reading Nginx, Apache, and Linux syslog error lines: what each field means, with real annotated examples.

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Sejal Pandey

Sejal Pandey

How SLI, SLO, and SLA connect

SLO vs SLA: What's the Difference?

An SLO is the internal reliability target your team sets. An SLA is the contractual promise you make to a customer. Here's how they differ, with real examples.

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Sejal Pandey

Sejal Pandey

Last9 and Altinity partner to run ClickHouse-backed observability inside your own cloud account

Better Together: Last9 + Altinity

Last9 and Altinity now run observability entirely in your own cloud, metrics, logs, traces, and profiles on an open-source ClickHouse stack, priced on capacity instead of ingestion, with Altinity operating the database so your team doesn't have to.

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Last9

Last9