🔗 Analyze backlinks, track lost links, and monitor competitors with this free, user-friendly SEO tool designed for effective website growth.

🔍 Detect website changes automatically and receive real-time alerts via various channels to stay informed on updates, prices, and content edits.

🔍 Analyze and improve your website's performance, security, and quality with DevTeam-Test's comprehensive testing platform, all in one go.

🌐 Analyze and enhance your website's performance, security, and quality with Web-PSQC for a better user experience and improved rankings.

Best and simplest tool for website change detection, web page monitoring, and website change alerts. Perfect for tracking content changes, price drops, restock alerts, and website defacement monitoring—all for free or enjoy our SaaS plan!

Monitor content changes and send email notifications

automated website screenshot capture tool

Monitor your websites using GET/POST/HEAD requests, verify SSL certificates, and check for specific content — all configured via a simple YAML file. Get instant Telegram alerts after N failures and a recovery notification when the site is back online. No cloud. No lock-in. No Docker. Just Python + crontab.

Track changes on websites via git

Free backlink checker analyze backlinks

A collection of lightweight Shell script monitoring tools designed to automate the monitoring of server, service, and application statuses, currently including SSL certificate expiry and website availability monitoring.一个轻量级的 Shell 脚本监控工具集合，用于自动化监控服务器、服务和应用程序的运行状态，目前包含 SSL 证书过期和网站可访问性监控。

📸 GitHub action for web screenshot

👁️ Simply watch URLs and get notified when they change.

Monitor multiple websites from Windows and display their status on a 15-button Elgato Stream Deck.

DevTeam-Test는 PSQC 기반 종합 웹 품질 테스트 플랫폼입니다. 한 번의 테스트로 성능, 보안, 품질, 콘텐츠를 모두 진단하며, 8개 글로벌 리전 속도 측정, OWASP 보안 검사, Lighthouse 품질 평가, SEO 분석을 제공합니다. 업계 표준 도구들을 통합하여 과학적인 웹사이트 진단을 지원합니다.

Web-PSQC is a global certification service that evaluates website performance, security, quality, and content through 16 independent tests. Results are issued as certificates with QR verification, providing objective credibility and measurable SEO impact.

Ultimate SEO Analyzer API — fast website analysis with metadata, headings, keyword density, images, load time & SEO score via RapidAPI.

MonMon is a small Python 3 console app that monitors websites for changes and alerts you both in the terminal (with colored diffs) and via a Discord webhook. You can watch the entire page or just a specific CSS selector (like you would copy from your browser’s Inspect tool). Optional JS-rendered fetching is available via Playwright.

UptimeCheck is a robust monitoring solution that continuously tracks and reports the uptime status of websites and APIs. It provides real-time monitoring, detailed analytics, and instant alerts for downtime detection, ensuring seamless application health tracking.

Control your Uptime Monitor account with Terraform