--- title: Blog — page 4 of 9 description: Practical guides on monitoring, reliability, and performance — plus product news and lessons from the WatchFor team. canonical: https://watchfor.io/blog/page/4 --- # What we watch for — page 4 Practical guides on monitoring, reliability, and performance — plus product news and lessons from keeping our own systems online. [All](/blog)[Monitoring](/blog/category/monitoring)[Networking](/blog/category/networking)[Performance](/blog/category/performance)[Security](/blog/category/security)[Reliability](/blog/category/reliability)[Email](/blog/category/email)[DevOps](/blog/category/devops)[Engineering](/blog/category/engineering)[Guides](/blog/category/guides) [All articles](/blog/all) 229 posts · 167 article s · [62 tool guides](/blog/category/guides) · page 4 of 9 [MonitoringAug 23, 2026 ## The complete status page guide: from bare green dots to a page customers actually trust A status page is the most public thing your infrastructure has. This guide covers every layer of building a good one: branding and themes, components and grouping, automatic vs. manual state, third-party dependencies, maintenance announcements, visibility modes, badges and JSON — and the trust rules that make or break all of it.WatchFor Team7 min read](/blog/status-page-complete-guide)[MonitoringAug 23, 2026 ## Webhook reliability: designing deliveries that survive, and monitoring both ends Webhooks fail silently by design — the sender moves on, the receiver never knows what it missed. Here's the engineering playbook for both sides: retries and idempotency, signatures and ordering, dead letters — and the monitoring that catches a dead webhook pipeline before your data drifts.WatchFor Team4 min read](/blog/webhook-reliability-guide)[MonitoringAug 09, 2026 ## API monitoring beyond status codes: assert on the response, chart what matters A 200 OK only proves your API answered — not that the answer was right. Here's why status-only checks miss real outages, what monitoring the response actually takes, and how WatchFor's new API monitor asserts on JSON, extracts values into charts, and pages you when the body goes wrong.WatchFor Team6 min read](/blog/api-monitoring-beyond-status-codes)[MonitoringJul 30, 2026 ## Heartbeat & Cron Job Monitoring: the Dead Man's Switch Your Backups Deserve Most monitoring checks that something is up. Heartbeat monitoring does the opposite — it alerts when something that should run goes silent. The concept, who needs it, and how to set it up so a dead backup job can't hide for three weeks.WatchFor Team6 min read](/blog/heartbeat-cron-monitoring)[MonitoringJul 30, 2026 ## MCP Server Monitoring: Why "HTTP 200" Means Nothing to an AI Agent MCP servers fail in ways no uptime check can see: the port answers 200 while the handshake breaks, tools vanish, or a tool description is silently rewritten under your agents. Here's how protocol-level MCP monitoring works — and why we built it.WatchFor Team5 min read](/blog/mcp-server-monitoring)[NetworkingJun 26, 2026 ## Advanced SSH: jump hosts, tunnels, and power-user tricks Once you know basic SSH, a whole toolbox opens up: jump hosts to reach private servers, port forwarding, SOCKS proxies, agent forwarding, and a config file that makes it all effortless. The power-user guide.WatchFor Team5 min read](/blog/advanced-ssh-tunnels-jump-hosts)[NetworkingJun 26, 2026 ## FTP vs FTPS vs SFTP: file transfer protocols explained FTP, FTPS, and SFTP all move files — but only two are safe, and they work in completely different ways. Here's how each protocol works, active vs passive mode, the best clients per OS, and which to use.WatchFor Team6 min read](/blog/ftp-ftps-sftp-explained)[ReliabilityJun 26, 2026 ## SLA vs SLO vs SLI: the reliability promise, decoded Three little acronyms quietly run every serious reliability conversation — and almost everyone mixes them up. Here's what SLA, SLO and SLI actually mean, how they fit together, and how to set ones that won't page you at 3am for nothing.WatchFor Team8 min read](/blog/sla-slo-sli)[NetworkingJun 26, 2026 ## SSH explained: secure remote access, keys, and sessions SSH is how you securely log into and control machines anywhere in the world. Here's what it is, how password vs public-key auth really works, how to run remote commands, and the best clients for every OS.WatchFor Team5 min read](/blog/ssh-explained)[ReliabilityJun 25, 2026 ## Alert Fatigue: why your team stopped reading alerts (and how to fix it) When everything alerts, nothing does. Alert fatigue is how real outages slip past tired teams — and it's fixable. Here's why it happens, what it costs, and how to get back to a pager you can trust.WatchFor Team5 min read](/blog/alert-fatigue)[MonitoringJun 24, 2026 ## Status Page Best Practices: turning your worst day into trust A status page is the one place customers look when things go wrong — and most are an afterthought. Here's how to run one that deflects tickets, calms users, and quietly earns trust during an outage.WatchFor Team4 min read](/blog/status-page-best-practices)[MonitoringJun 23, 2026 ## Uptime Monitoring 101: how to never be the last to know The worst way to find out your website is down is from an angry customer. This is the beginner-friendly guide to uptime monitoring — what it is, why it matters, and how to set it up so you always hear it first.WatchFor Team6 min read](/blog/uptime-monitoring-101)[NetworkingJun 22, 2026 ## HTTP Status Codes Explained: what 404, 500 and 503 really mean Every status code is your server trying to tell you something. Here's a plain-English guide to the ones you'll actually meet — what they mean, whose fault they are, and what to do about each.WatchFor Team4 min read](/blog/http-status-codes-explained)[PerformanceJun 19, 2026 ## Core Web Vitals Explained: LCP, CLS, INP (and how to keep them green) Google grades your pages on three numbers — and they affect both how your site feels and how it ranks. Here's what LCP, CLS and INP actually measure, what 'good' looks like, and how to fix them.WatchFor Team4 min read](/blog/core-web-vitals-explained)[NetworkingJun 16, 2026 ## How to Never Get Caught by an Expired SSL Certificate An expired TLS certificate takes your whole site offline with a scary red warning — and it's 100% preventable. Here's why certificates expire, what it costs, and how to make sure it never catches you.WatchFor Team3 min read](/blog/ssl-certificate-expiry)[NetworkingJun 12, 2026 ## How DNS Works (and What 'Propagation' Really Means) DNS is the internet's phonebook — and one of the most common causes of outages nobody understands. Here's how a domain name becomes an IP address, in plain English, plus what 'propagation' actually is.WatchFor Team4 min read](/blog/how-dns-works)[ReliabilityJun 09, 2026 ## The Blameless Postmortem: turning incidents into improvements (with a template) After an outage you can hunt for someone to blame, or hunt for what to fix. Only one makes you more reliable. Here's how to run a blameless postmortem — plus a copy-paste template.WatchFor Team5 min read](/blog/blameless-postmortem)[MonitoringJun 06, 2026 ## Synthetic vs Real User Monitoring (RUM): what's the difference? Synthetic monitoring and RUM answer two different questions about your site. Here's what each one does, where each shines, and why the best setups use both.WatchFor Team4 min read](/blog/synthetic-vs-real-user-monitoring)[MonitoringJun 03, 2026 ## API Monitoring Guide: how to watch the endpoints your business runs on Your website can be perfectly up while your API quietly fails — and APIs power the integrations, apps and partners you can't see. Here's how to monitor them properly.WatchFor Team4 min read](/blog/api-monitoring-guide)[MonitoringMay 30, 2026 ## What is 99.9% Uptime? The downtime hiding behind the nines “99.9% uptime” sounds almost perfect — until you do the maths. Here's exactly how much downtime each level of nines allows, how it's calculated, and how to pick a target you can actually hit.WatchFor Team3 min read](/blog/what-is-99-9-percent-uptime) --- Canonical page: https://watchfor.io/blog/page/4 · Site guide: https://watchfor.io/llms.txt