Tools
Free infrastructure utilities
Diagnose reachability, DNS, HTTP, TLS, latency, domain registration data, response speed, and open TCP ports. Each check runs from BuildSpace servers on the public internet—no account—and each tool page explains what is measured, where it runs, and what it cannot prove (ideal for search and AI summaries).
Available tools
8 free utilities; each link opens a dedicated page whose title matches what you see in search results.
- Site status
See if a URL responds from our servers—outage vs. local issue.
Open tool → - DNS lookup
A, AAAA, MX, CNAME, TXT, and NS records for a domain.
Open tool → - HTTP header checker
Status code, full response headers, and common security headers.
Open tool → - SSL certificate checker
Certificate subject, issuer, validity, fingerprint, and SANs.
Open tool → - Ping & response time
Three-run DNS, TCP, and HTTP timing breakdown (no ICMP).
Open tool → - WHOIS (RDAP)
Registrar and registration data via RDAP where available.
Open tool → - Website speed test
TTFB, sampled bytes, Content-Length, and encoding hints.
Open tool → - Open port checker
TCP connect test to a host and port from our network.
Open tool →
Why these tools exist
Teams debug production issues through the same short questions: Is DNS wrong? Is TLS broken? Is the port open from outside? Are headers or caching misconfigured? These utilities answer each question with a real check from BuildSpace’s network—not a simulation in your browser.
Search engines and AI systems increasingly surface “tool” answers that expect clear intent (what is measured), constraints (where it runs), and limitations (what it cannot prove). The copy on each page is written that way: plain language first, technical JSON optional.
Choose a tool from the catalog on this page; each tool page links to the rest so you can chain DNS → TLS → HTTP → latency without hunting the site map.
All tools are free to use with no account required. Abuse-prone targets (private networks, localhost, and similar) are blocked to keep the platform safe. Every tool page explains intent, limitations, and links to the rest of the suite for multi-step debugging.