Glossary

SLA, SLO, and SLI tend to get lumped together until someone has to explain missed uptime, set a target, or put a promise in writing. That is where the mix-up starts to hurt. One is the agreement, one is the goal, and one is the metric behind it. Get those roles clear, and service quality […]

Email failures are easy to miss until they hurt. Messages queue silently, transactional emails arrive late, or never show up at all, and users assume your product is broken. SMTP issues rarely trigger obvious alarms on their own. This post explains SMTP monitoring from an operational perspective. It covers how mail delivery actually fails, what […]

A 999 status code usually shows up when a request gets blocked, not when a server crashes. Your site looks fine, but crawlers, bots, or monitoring checks suddenly fail. That mismatch makes troubleshooting slower than it should be. This post explains what HTTP 999 actually means, why it exists outside the official spec, and which […]

Did you like our previous blog about domain hijacking? Let’s see if you know all the HTTP codes now.  Decoding HTTP status codes HTTP status codes, typically a sequence of three numbers, are a reply from the server in response to a request made by a web browser. A common example many might recognize is […]