Network
DNS, IP, and webmaster utilities
All tools in this category are 100% free, work directly in your browser, and require no registration. Your data stays private and secure - nothing is uploaded to external servers.
Instant Access
No signup or downloads required. Start using tools immediately.
Privacy First
All processing happens locally in your browser. Your data is never sent to servers.
Always Free
No hidden costs, premium tiers, or feature limitations. Everything is free forever.
DNS Lookup
Lookup DNS records (A, AAAA, CNAME, MX, NS, TXT, CAA, SRV, PTR)
HTTP Headers Checker
Inspect real HTTP response headers for any URL
IP & Subnet Calculator
IPv4 ⇄ decimal, CIDR to range, range to CIDRs, subnet math
Website Screenshot
Capture full-page screenshots of any website
Open Graph Generator
Generate Open Graph meta tags for social media
Meta Tag Generator
Generate standard HTML meta tags for SEO
Twitter Card Generator
Generate Twitter Card meta tags for rich previews
Robots.txt Generator
Generate robots.txt files to control search crawlers
Favicon Generator
Generate custom favicons from text or initials
WHOIS Lookup
Look up domain registration and ownership information
SSL Certificate Checker
Check SSL certificate validity and expiration
Port Checker
Check if a port is open on a server or domain
IPv4 to IPv6 Converter
Convert IPv4 addresses to IPv6 format
SPF Record Checker
Check and validate SPF email authentication records
DMARC Record Generator
Generate DMARC records for email authentication
IP Geolocation Lookup
Look up the geographic location, ISP, timezone, and ASN for any IPv4 or IPv6 address.
UTM Link Builder
Build trackable URLs with UTM parameters for Google Analytics and marketing campaigns.
URL Redirect Checker
Trace the full HTTP redirect chain for any URL and identify 301, 302, 307, 308 redirects.
XML Sitemap Generator
Generate valid XML sitemaps for search engines from a list of URLs. Export as .xml or .txt.
CORS Headers Generator
Configure CORS headers and generate server code for Express, Nginx, Apache, FastAPI, and Django.
Domain Age Checker
Check when a domain was registered, its age, expiry date, registrar, and nameservers.
About Network
Our network collection provides powerful, browser-based utilities designed for efficiency and ease of use. Each tool is carefully crafted to solve specific problems while maintaining our core principles of privacy, speed, and accessibility.
Whether you're a professional, student, or casual user, these tools are built to work seamlessly across all devices without requiring installation, registration, or payment. All processing happens locally in your browser, ensuring your data remains completely private and secure.
We continuously update and expand our tool collection based on user feedback and emerging needs. If you have suggestions for new network tools, we'd love to hear from you.