Introduction
buffer.lol is a diagnostics toolbox for quick network, IP, web, and developer checks. Use it to inspect domains, endpoints, certificates, ports, public IP details, browser signals, and everyday encoded data without opening a full monitoring suite.What buffer.lol checks
Network diagnostics
Inspect DNS records, HTTP headers, TLS certificates, redirects, uptime, ports, robots.txt, and sitemap hints.
IP intelligence
Detect your public IP and look up geolocation, RDAP network data, and ASN ownership.
Browser utilities
Format JSON, parse URLs, decode JWTs, generate hashes and UUIDs, convert timestamps, and test regex patterns locally.
Worker-backed checks
Ping, packet-loss sampling, and traceroute are planned for a separate worker because they need ICMP or traceroute privileges.
Base URL
Quick links
Quickstart
Run your first check and interpret the result.
API Reference
Call the diagnostics API used by server-side tools.