Guides
Evergreen, low-competition topics new domains can rank for — each pushes readers back to the checker (pages/visit ↑, RPM ↑).
- HTTP Status Codes Explained: 200, 301, 404, 500 and What They Really Mean
A plain-English guide to HTTP status codes — what 2xx, 3xx, 4xx and 5xx mean, why a 404 doesn't mean the whole site is down, and how to fix each one.
Read guide → - DNS Errors (NXDOMAIN, SERVFAIL): Why a Site Won't Resolve and How to Fix It
Learn what DNS errors mean, why NXDOMAIN and SERVFAIL happen, how propagation works, and step-by-step fixes when a domain won't resolve.
Read guide → - SSL Certificate Errors: Expired, Invalid and Mixed-Content Fixes
Why browsers block HTTPS sites — expired certificates, hostname mismatch, incomplete chains — and how to diagnose and fix each SSL error.
Read guide → - Website Down? 11-Step Troubleshooting Checklist (Is It You or Everyone?)
Is it down for everyone or just you? Follow this 11-step checklist to tell local Wi-Fi, DNS, SSL and real outages apart in minutes.
Read guide → - HTTP vs DNS vs SSL Failures: How to Read Any Uptime Result Like a Pro
Server reachable ≠ page working. Learn to tell HTTP errors, DNS failures, TLS problems and timeouts apart from any uptime checker result.
Read guide → - What Is an IP Address? Public vs Private, IPv4 vs IPv6 (Plain English)
Your IP address is your return address on the internet. Learn what it reveals (city, ISP), the difference between public and private IPs, and when to care.
Read guide → - IPv4 vs IPv6: Why Both Exist and Which One You're Using
IPv4 ran out — IPv6 is the replacement. Learn the difference, how to see which you have, and why some sites behave differently on each.
Read guide → - Static vs Dynamic IP: Which Do You Have, and Should You Pay for Static?
Most home IPs change regularly (dynamic). Learn when a static IP is worth paying for — hosting, remote access, allowlists — and when it's pointless.
Read guide → - Public vs Private IP: 192.168.x.x, 10.x.x.x and Why Your Router Hides You
Why every home network reuses the same 192.168 addresses. NAT explained, plus how to find both your private and your public IP.
Read guide → - How to Hide Your IP Address: VPN, Proxy, Tor — Honest Comparison
Three ways to mask your IP compared honestly: VPN (best all-round), proxy (fast but thin), Tor (max anonymity, slow). Includes a leak test.
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