Are Tech100 sysadmin diagnostics 100% free with zero query throttling?

Yes. All Tech100 diagnostic utilities execute directly via native PHP 8.2+ low-level network sockets, OpenSSL, and DNS resolver extensions without third-party API rate limits, query paywalls, or affiliate front-running.

Does Tech100 store or log my search queries, domains, or IP addresses?

No. We maintain a strict zero-logging privacy policy. Queries are processed in memory and discarded immediately following response rendering. We never harvest domain searches or resell telemetry.

Can I use these tools to diagnose production server issues?

Yes. The suite is engineered for systems administrators, DevOps engineers, and cloud architects to diagnose DNS propagation, SSL handshakes, TCP firewall filtering, BGP routing, and HTTP redirect chains.

9 Production-Audited Sysadmin & Network Tools

Server, Network & Security Diagnostics Suite

Zero-latency, privacy-first diagnostic utilities designed for systems administrators, DevOps engineers, and network architects. Powered by native PHP 8.2+ low-level sockets, OpenSSL, and DNS resolvers with zero third-party scripts or data logging.

Diagnostic Tools

9 Active

Production verified

Execution Speed

< 0.5 ms

Zero-API overhead

100% Private

Zero query logging

Runtime Engine

PHP 8.2+

Pure socket & crypto

Port 43 & RDAP

WHOIS & Domain Intelligence Suite

Authoritative Port 43 & RDAP queries. Inspect domain lifespan, expiration countdowns, IANA registrar credentials, DNS nameservers, and EPP security locks.

Lifespan Meter EPP Locks IANA Registrar

Launch WHOIS Suite

DNS & Zone

DNS Record Lookup (A, MX, TXT)

Query authoritative nameservers for A, AAAA, MX, TXT (SPF/DKIM/DMARC), CNAME, NS, and SOA records with BIND zone file export.

A / AAAA SPF & DMARC BIND Export

Launch DNS Lookup

Network & Latency

Server Port & Ping Latency Checker

Test TCP socket accessibility across SSH 22, HTTP 80, HTTPS 443, MySQL 3306, and custom ports with millisecond roundtrip latency.

TCP Handshake Firewall Audit ms Latency

Launch Port Ping

TLS & X.509

SSL / TLS Certificate Inspector

Audit SSL/TLS certificate chains, CA issuers, days until expiration, SAN hostnames, signature ciphers, and TLS 1.3 handshake speed.

Expiry Countdown SAN Domains TLS 1.3

Launch SSL Inspector

IP & Telemetry

Live IP, ISP & Headers Inspector

Inspect your live external IP, reverse PTR hostname, ISP autonomous system number (ASN), and exact HTTP browser request headers.

ASN & ISP rDNS PTR HTTP Headers

Launch IP Inspector

HTTP Routing

HTTP Redirect Chain & Status Tracer

Trace complete 301, 302, 307, and 308 redirection chains. Identify hop-by-hop latency and eliminate redirect loops.

301 vs 302 Link Equity Waterfall

Launch Redirect Tracer

Anonymity & Leaks

Proxy Leak & Anonymity Tester

Audit connections for proxy header leakage (Via, X-Forwarded-For) and calculate your real-time Stealth Anonymity Rating.

Stealth Score Header Leaks Elite Rating

Launch Proxy Tester

VPC & Routing

IPv4 Subnet & CIDR Calculator

Calculate network address, broadcast address, netmask, wildcard mask, and usable host ranges for any IPv4 CIDR prefix.

CIDR /8-/32 Usable Hosts VPC Subnets

Launch Subnet Calculator

CSPRNG Crypto

Password & API Key Generator

Generate high-entropy passwords, API bearer tokens, SHA-256 keys, and UUID v4 identifiers powered by native CSPRNG random bytes.

Entropy Bits UUID v4 CSPRNG

Launch Password Generator

Production Sysadmin Diagnostics Playbook

Architectural Network Troubleshooting: From DNS to TLS Sockets

When a web service degrades or fails to resolve, systems engineers follow a deterministic diagnostic sequence. Learn how to systematically debug domain delegation, socket reachability, TLS handshakes, and network packet routing.

Diagnostic Sequence

The 5-Step Server Troubleshooting Sequence

WHOIS Audit

Verify domain registration status, expiration timestamp, and that clientHold or serverHold locks are not active.

DNS Resolution

Query authoritative nameservers for A/AAAA records. Verify TTL propagation and check SPF/DMARC TXT records.

TCP Socket Ping

Test whether target application ports (22, 80, 443, 3306) are open or dropped by cloud security groups.

SSL/TLS Handshake

Inspect X.509 certificate validity, issuer authority, SAN domain coverage, and TLS 1.3 cryptographic ciphers.

HTTP Redirect Trace

Verify 301/308 redirect chains, eliminate circular loops, and preserve SEO canonical link equity.

Diagnostics Knowledge Base

Frequently Asked Questions: Tech100 Diagnostic Utilities

Most third-party tools route requests through multiple layers of external cloud APIs, JavaScript tracking scripts, and rate-limiting middleware. Tech100's architecture runs on pure PHP 8.2+ low-level network extensions with zero framework bloat, executing raw TCP socket connects, DNS lookups, and OpenSSL queries in under 0.5 milliseconds.

Yes. For local development environments (e.g. localhost, 127.0.0.1, or private LAN subnets), tools like the IP & Headers Inspector, Subnet Calculator, Password Generator, and Port Latency Checker execute with full diagnostic telemetry.