Email & domain security guides
Short, plain-language explanations of the records that protect your domain — and how to fix them.
What Is SPF? How to Set Up an SPF Record
A plain-language guide to SPF records: what they do, how to write one, common mistakes, and how to check yours.
Read guideWhat Is DMARC? A Beginner’s Guide to DMARC Policies
Learn what DMARC is, what p=none, quarantine and reject mean, and how to move safely to full protection.
Read guideWhat Is DKIM? How Email Signing Protects Your Domain
Understand DKIM email signatures, selectors and key strength, and how to find and verify your DKIM record.
Read guideHow to Stop Email Spoofing of Your Domain
A step-by-step checklist to stop scammers from sending email that pretends to come from your business domain.
Read guideWhat Is DNSSEC and Should You Turn It On?
DNSSEC explained simply: what it protects against, how to enable it at your registrar, and what to watch out for.
Read guideEmail Deliverability Checklist for Small Businesses
A practical checklist to keep your business email out of spam folders, from DNS records to sending habits.
Read guideYour Website Is Down or Unreachable: What to Do
Your site is not answering visitors. A plain-language checklist to find out why and get it back online.
Read guideYour Security Certificate Is Expiring or Broken: How to Fix It
Browsers warn visitors when a certificate lapses. Here is how to renew it and stop the warnings for good.
Read guideYour Website Is Slow: Practical Ways to Speed It Up
Slow pages lose visitors and search rankings. The highest-impact fixes, in plain language.
Read guideYour Website Doesn’t Work Well on Phones: How to Fix It
More than half of visitors are on phones. Here is how to make your site fit small screens properly.
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