Use our professional-grade diagnostic tools to identify website, DNS, and email issues before they become major problems.
Server Uncle provides a comprehensive suite of free webmaster tools designed for sysadmins, developers, and IT professionals. From checking website health and DNS propagation to generating complex crontab schedules and calculating subnets, our tools are built to save you time and solve technical problems instantly.
Comprehensive website analysis including HTTP status, SSL certificates, uptime monitoring, and performance metrics.
Global DNS propagation monitoring across multiple DNS servers worldwide to ensure your domain changes are reflected everywhere.
Complete email infrastructure analysis including MX records, SPF, DMARC, and IP blacklist checks for optimal delivery.
Instant analysis of your IP address, including location, ISP, ASN, and network details.
Convert your SSL certificates between different formats (PEM, DER, PFX) securely and easily.
Visual crontab schedule generator. Create complex cron schedules without memorizing syntax.
Calculate Linux file permissions (chmod) using a simple visual checkbox interface.
Calculate network subnets, masks, and ranges from IP and CIDR notation.
Generate correct .htaccess rewrite rules for 301 redirects, HTTPS forcing, and more.
Our experts can help interpret your diagnostic results and fix any issues found. Get peace of mind with professional tech support.
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