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Calendar reminders fail past one domain. Check SSL certificates free, get notified before expiry, and automate the checks with the HostTracker CLI and API.

HostTracker runs a public MCP server so Claude Code and other MCP-capable assistants can run uptime checks and manage monitors through 65 tools.

Install the HostTracker CLI, authenticate with a token, run uptime checks and manage monitors, then wire it into CI with the official GitHub Action.

A developer's first tour of the HostTracker API v2: monitors, instant checks and webhooks, authentication, and curl examples for your first real call.

Install the official HostTracker SDK for Python, JavaScript, Go or .NET: package, install command and a working example for each, plus who can access it.

StatusCake's free plan is genuinely generous, but Business runs ~€70/month and alerting stays thin. Compare

Uptime Kuma is free and self-hosted; hosted monitoring costs money but adds multi-location checks and no ops

Site24x7 is a powerful IT-ops suite, not a website monitor first. If you only need uptime checks, these Site24x7 alternatives are simpler and cheaper.

We compared Pingdom, UptimeRobot, and HostTracker on price, check frequency, locations, check types, alert channels, and free tiers. Full 2026 breakdown.

Assertion mode replaces fixed status/keyword checks with rule-based validation - the complete reference to every subject, operator and shortcut.

Better Stack bundles uptime with logs and on-call from $29/month. Compare Better Stack alternatives built for pure monitoring, not a full platform.

We compared the 10 best website monitoring tools of 2026 on price, check types, alerting, and free plans, including Pingdom, UptimeRobot, and Better Stack.

Pingdom now prices by usage calculator, from $16.50/month for 10 checks. These 7 Pingdom alternatives cost less and add voice calls and blacklist checks.

UptimeRobot's free plan checks every 5 minutes with no bundled SMS or voice. Compare 6 UptimeRobot alternatives with faster checks and broader coverage.

Set up a HostTracker TCP port check: TLS handshake, response pattern, expected IPs, locations, and alerts - plus the fixes for the most common failures.

Build a multi-step browser transaction check in HostTracker: steps, timeouts, console-error validation, locations, and a real checkout-flow example.

Configure an SNMP check on HostTracker: OID, community strings, SNMP v1/v2c/v3 with authentication and privacy, plus today's honest limits on alerting.

Set up HostTracker Page Speed monitoring: device emulation, page load timeout, and every fail threshold explained, with real guidance on what to set.

Configure a HostTracker ping check end to end: interval, DNS resolution, expected IPs, monitoring locations, alerts, and the ICMP gotchas to watch for.

Set up an HTTP uptime check step by step: every Main Settings, Request Configuration and Response Validation option explained, with a worked example.

Set up HostTracker Content Check monitoring: keyword match conditions, case sensitivity, and visible-content filtering, catching what HTTP checks miss.

Set up HostTracker's server-load check with a custom endpoint or the ready-made PHP/ASP.NET collector, and pick a threshold that won't cry wolf.

Set up HostTracker's database check: connection vs query-result validation, credentials, firewall allow-listing, and alert/report subscriptions.

Set up HostTracker's DNSBL check: every setting explained, what a blacklist listing costs your email deliverability, and how to act on a live listing.

Set up HostTracker's Domain expiration check: every setting explained, the fixed 6-hour schedule, and how it differs from a certificate expiration check.

Set up HostTracker's Web Risk check: every setting explained, what a Google malware or phishing flag costs you, and how to recover from one.

Set up HostTracker's Certificate expiration check: every setting explained, the fixed 6-hour schedule, and the automatic 30/7/1-day reminder ladder.

Set up HostTracker's Russian BL check: every setting explained, what the RKN block-page check tests, and how it differs from a spam DNSBL check.

Configure API monitoring in HostTracker: request setup, JSON/XML response validation, assertion rules, locations and alerts, with a worked example.

Learn how to calculate uptime easily. Our guide provides simple steps to measure system reliability and ensure optimal performance. Boost your website's availability now!

Unlock the secrets of 5xx server error status codes with our comprehensive guide. Learn how to diagnose and fix common issues like 500 Internal Server Error, 502 Bad Gateway, and others to enhance website performance and reliability.

Explore the meanings and roles of 4xx HTTP status codes, which signal client errors. This article covers common codes like 404 and 403, detailing how they guide website-user interactions and troubleshooting.

Delve into the 3xx HTTP response status codes, covering their role in URL redirection, their significance in website performance and SEO, and an overview of common codes like 301 (Permanent Redirect) and 302 (Temporary Redirect).

2xx status codes mean the request was successfully processed. These codes indicate successful actions, ranging from 200 (OK) to 206 (Partial Content), confirming effective communication between client and server.

1xx status codes indicate informational messages about the ongoing operation, often related to slow loading or procedural issues. These messages are not visible to the end user and do not signify any critical errors.

Learn more about web response codes, also known as HTTP codes, to identify problems with user requests to the server.

On HostTracker, you can manually conduct basic whois URL checks without registration. All tools on our platform are beginner-friendly and easy to use.

Whether you are a competitor analyzing industry websites, an individual concerned with security, or someone looking to switch hosting providers, 'How to Find Where a Website is Hosted' is the article for you.

HostTracker monitoring system checks sites according to given policy in monitoring configuration. The detected status, UP or DOWN, could be local or temporal, and, therefore, is the subject for verification and confirmation before the next action, an alert or uptime statistics update, takes place. 

Examples of errors such as downtime due to new deployment and configuration propagation (DNS unavailability), local site blacklistting, incompatible environment of checking agent to server technologies, are verified with rechecks from locations of configured geo location.

A server monitoring service provides constant surveillance of your website to check server uptime and performance.

Uptime is a computer measure of system reliability during which a computer or system is operational and has metric as the percentage of time.

Learn how to check if a website is down and what tools to use. Why is it better to automate this process? Practical tips for configuring the toolkit.

WHOIS explained: what a domain lookup record contains, why fields are hidden for privacy, what RDAP is, and what to do before a domain expires.

Run a free website speed test and learn what time to first byte, load time and settle time mean, and why the same page can score differently on two tests.

Find out what the DNS blacklist is, how it works. Check your domain or SMTP for availability at DNSBL. Get tips on how to remove your project from the spam database, as well as tips on how to avoid getting blacklisted.

Learn in detail what ping is, what it affects, and how to perform a ping test. What tools does HostTracker offer and why are they the best solution? Get detailed instructions on how to set up IP ping tet or server ping test, etc.

In a digital world where we want everything right now, a website that is not available at the moment is a website we probably will not go back to in the future. That much should be obvious to everyone. If you are not careful, your website could be sending your visitors to your competitors. So how do you keep track of your website 24/7?

Set up HostTracker alerts in Slack via an Incoming Webhook: step-by-step setup, sample alert messages, subscribable events, and troubleshooting tips.

We’re happy to introduce our newest monitoring feature - Database Check – that is easy to use, crystal-clear to understand and designed to get you through your website ‘critical hours’ as smoothly as possible.

See all ten HostTracker alert channels, which events trigger a message, how reports differ from alerts, and how to build a simple escalation chain.

The main feature of HostTracker monitoring service is the regular checks of web sites with monitoring intervals from 1 minute. Moreover, the HostTracker’s dedicated global monitoring checkpoints network currently includes more than 140 servers all over the world.

A lapsed domain and an expired SSL certificate look alike but are not: different causes, symptoms, and fixes. Learn to tell them apart and monitor both.

Every year, millions of domain names are lost. What happens after domain expires? How long will your domain wait for you before someone grabs it? And how to omit this?  

Monitor your domains for any changes. You can keep an eye on the state of available domains which you like, but don’t forget your own ones too. There is a wide variety of services, like HostTracker, which provide an easy, efficient way to track any changes of domain’s state.