Blog
Practical, vendor-neutral guides on domains, DNS, email authentication and hosting.
CAA Records Explained: Control Who Can Issue Your Certificates
What a CAA record is, how CAs evaluate it (tree climbing, CNAMEs, issue vs issuewild), ready-to-use examples, and how to add one without breaking renewals.
Guides7 min readFinding the Origin IP Behind a CDN: Limits and Ethics
Why an IP lookup shows CDN edge addresses, why the origin IP behind a CDN usually cannot and should not be found, and how owners protect their own origin.
Guides6 min readDNS Record Types Explained: A, AAAA, CNAME, MX, TXT and More
What each DNS record type does, how it looks in a zone, the rules that trip people up (CNAME at apex, MX targets, TXT length) and how to query each with dig.
Guides7 min readWhat Is DNSSEC? How It Works and How to Enable It Safely
What DNSSEC is, how signatures, DNSKEY and DS records form a chain of trust, what it does not protect, how to enable it, and how to avoid an outage.
Guides7 min readWhat Happens When a Domain Expires? The Full Timeline
What happens after a domain expires: auto-renew grace, DNS being switched off, the redemption period, pending delete, and how to recover the name in time.
Guides6 min readclientTransferProhibited and Other Domain Status Codes
What clientTransferProhibited, clientHold, serverHold, redemptionPeriod and the other EPP status codes mean, who sets them, and what to do about each one.
Guides7 min readEmails Going to Spam? A DNS Checklist to Work Through
A practical DNS checklist for emails going to spam: read the headers, then verify SPF, DKIM, DMARC alignment, reverse DNS, MX and TLS with dig commands.
Guides6 min readHow to Transfer a Domain Name to Another Registrar
Step-by-step domain transfer: eligibility, unlocking, the auth code, the five-day window, what happens to DNS and email, and the mistakes that cause downtime.
Guides6 min readWhat Is Reverse DNS? PTR Records Explained
What reverse DNS and PTR records are, how in-addr.arpa works, who can set a PTR, why mail servers need matching forward and reverse DNS, and how to check.
Guides6 min readSSL Certificate Expired: What to Do and How to Prevent It
Your SSL certificate expired? How to confirm it with openssl, renew and install it correctly, fix the chain, reload the server, and automate renewals for good.
Guides7 min read.tr Domain Registration Rules: com.tr and TRABİS Explained
How .tr domain registration works since TRABİS: who runs the registry, which extensions need documents, how to register a .com.tr, transfers and disputes.
Guides6 min readWhat Is TTL in DNS? Values, Caching and When to Lower It
What TTL means in DNS, how resolvers count it down, sensible values for each record type, negative caching, and how to plan a change so nobody sees stale data.
Guides5 min readHow to Change Nameservers Without Downtime
A step-by-step plan for moving a domain to new nameservers: TTLs, copying the zone, DNSSEC, verifying from several resolvers, and rolling back safely.
Guides6 min readHow to Find Where a Website Is Hosted (and When You Can't)
Trace a website from domain to IP address to network owner, read reverse DNS, understand why CDNs hide the origin server, and know the limits of the method.
Guides7 min readMX, SPF, DKIM and DMARC Explained: How They Fit Together
How MX, SPF, DKIM and DMARC work together, the mistakes that break them, and a safe way to roll out DMARC without losing legitimate email.
Guides7 min readWHOIS vs RDAP: What Domain Registration Data Shows Today
What a WHOIS lookup still shows, why registrant details are redacted, how RDAP replaces WHOIS, and how to read domain status codes and expiry dates.