Technical Explainers

How to Look Up DNS Records for Any Domain (A, AAAA, MX, TXT, NS)

Learn how to look up DNS records for any domain — A, AAAA, MX, TXT and NS — using a free online tool or the command line, and what each record actually tells you.

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How to Tell if a Website Is Down for Everyone or Just You (in 60 Seconds)

A fast, reliable way to tell whether a website is down for everyone or just you — plus the exact fixes for a local problem and what to do in a real outage.

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What Are MX Records? How to Check & Fix Email Routing

What are MX records and how do they route email? Learn how to check your MX records, read priority values, and fix common email routing problems fast.

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What Happens When a Domain Expires? Timeline & How to Recover

What happens when a domain expires? A clear timeline of the grace, redemption and pending-delete periods — plus how to recover an expired domain before it's gone.

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What Is a DNS Lookup & How Does It Work? (Plain-English Guide)

What is a DNS lookup and how does it work? A plain-English guide to DNS resolution — the phonebook of the internet — explained step by step, no jargon.

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Cloudflare Errors Explained: 521, 522, 523, 524 & How to Fix Them

See a Cloudflare error screen? Learn what 521, 522, 523 and 524 mean, who is at fault, and what you can do about it.

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Why Is a Website Loading Slow? 7 Causes & How to Fix Them

From TTFB to DNS to your own Wi-Fi: diagnose exactly why a site is slow and what you can actually do about it.

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HTTP Status Codes Explained: 403, 404, 500, 502, 503 & More

What do HTTP error codes really mean, which ones mean a site is truly down, and which are just blocking you? Plain-English guide.

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How to Tell if a Website Is Down for Everyone (5 Reliable Methods)

Five fast ways to confirm a real outage: down checkers, cross-device testing, outage boards, DNS and SSL diagnostics.

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