Essential web development and network utilities for developers. Look up IPs, generate meta tags, preview Open Graph cards, and reference HTTP standards.
Look up geolocation, ISP, ASN, timezone, and network info for any IPv4 or IPv6 address.
Generate complete HTML meta tags for SEO, Open Graph, Twitter Cards, and structured data.
Preview how your page will appear when shared on Facebook, Twitter, LinkedIn, and Slack.
Complete reference for all HTTP 1xx–5xx status codes with descriptions and common use cases.
Comprehensive MIME type reference with file extensions, categories, and Content-Type usage.
Percent-encode and decode URLs, query strings, and URI components for safe HTTP transmission.
Calculate Unix file permissions numerically and symbolically with visual octal notation builder.
Built around RFC standards and web specifications for accurate, production-ready outputs.
Generate meta tags and Open Graph markup following current best practices for maximum SERP impact.
HTTP status codes, MIME types, and URL encoding references are always up-to-date and searchable.
Local tools process on your device; network lookups make requests. Saving/sharing is optional, requires an account, and sends selected content to our service.
IP geolocation accuracy varies by region and ISP. City-level accuracy is typically 80-90% for consumer ISPs. VPN, proxy, and corporate network IPs may show incorrect locations.
Every page should have: title, description, robots, canonical URL, Open Graph (og:title, og:description, og:image, og:url), and Twitter Card meta tags for optimal SEO and social sharing.
Social platforms cache OG data for varying periods. Facebook caches for 24 hours (use Sharing Debugger to refresh), Twitter typically updates within 1-7 days.
chmod 755 sets file permissions to rwxr-xr-x: owner can read/write/execute, group and others can read and execute. This is the standard permission for public web server directories and executable scripts.