Website Monitoring Tools

Web-based interface for Unix-like and Windows system administration with modules for user management, service configuration, security controls, and server monitoring.

SimilarWeb is a global software development and data aggregation company specializing in web analytics and digital performance. It provides traffic insights for websites, supporting market research, competitive analysis, and business development.

changedetection.io - The best and simplest self-hosted free open source website change detection monitoring and notification service. An alternative to Visualping, Watchtower etc. Designed for simplicity - the main goal is to simply monitor which websites had a text change for...

Advanced self-hosted tool for tracking uptime across multiple services with reactive UX, interval checks, various notifications, and multi-language support.

Website monitoring with alerts via calls, texts, and more. Includes on-call scheduling, calendar sync, incidents timeline, and status page sharing.

A self-hosted, privacy-friendly analytics solution offering automatic TLS, event tracking, and unlimited sites support without dependencies.

Distill is a web monitoring tool. It can monitor RSS feeds, a webpage or a part of webpage. Alerts in the form of pop-up, audio or emails can be received.

Unified analytics and uptime platform, optimized for casual users with a streamlined, deploy-anywhere approach.

Monitor up to 50 sites with 5-minute intervals for free. Receive alerts by email, SMS, calls, and integrate with platforms for seamless updates.

Prisme Analytics is an Open Source, privacy-focused and progressive analytics service.

Beszel is a lightweight server monitoring platform that includes Docker statistics, historical data, and alert functions.

Fail2ban scans log files (e.g. /var/log/apache/error_log) and bans IPs that show the malicious signs -- too many password failures, seeking for exploits, etc. Generally Fail2Ban is then used to update firewall rules to reject the IP addresses for a specified amount of time...

Powerful suite with 55+ tools for SEO, PPC, and content management, offering keyword research, site audits, social media scheduling, and competitive analysis.

urlscan.io is a free service to scan and analyse websites. When a URL is submitted to urlscan.io, an automated process will browse to the URL like a regular user and record the activity that this page navigation creates.

Monitor kids' phones with comprehensive control. Track calls, texts, keystrokes, and social media. Limit screen time and block apps easily.

Pingdom web site monitoring and other infrastructure for you and instantly let you know when anything goes wrong. Measure uptime, downtime, and the performance of your website as experienced by visitors.

Xenus Link Sleuth checks Web sites for broken links. Link verification is done on "normal" links, images, frames, plug-ins, backgrounds, local image maps, style sheets, scripts and java applets.

Generate and launch A/B tests from your browser, no coding needed, and let your site optimize itself 24/7 using past test insights.

WebSite-Watcher detects website updates and highlights all changes in the text. WebSite-Watcher monitors web pages, password protected pages, discussion forums and much more.

HetrixTools is a monitoring service that offers tools for tracking uptime, blacklist status, and server monitoring. It alerts users to potential downtime and provides 15 free uptime monitors that check every minute from various global locations.

Includes four cross-platform SEO tools for keyword tracking, site auditing, backlink analysis and link building, with multi-language support and automated reporting.

Visualizes your stack, aggregates logs into structured data, supports SQL queries for fast search. Real-time processing up to 1B log lines per second.

StatusCake.com is a free website monitoring tool which allows users to track up to 10 websites and get alerted when their site is down or is having trouble. Downtime root cause analysis is included in the free plan to help users diagnose and fix issues.

Cabot is a free, open-source, self-hosted infrastructure monitoring platform that provides some of the best features of PagerDuty, Server Density, Pingdom and Nagios without their cost and complexity.

Developed by Mozilla, the HTTP Observatory performs an in-depth assessment of a site’s HTTP headers and other key security configurations.