Learn
One Question, One Straight Answer — And a Live Check on Your Own Site.
Each page answers a single question in plain terms, then lets you run the real check on a domain you enter. No sign-up, no fabricated grade — the honest read, absence included.
Six Questions, Six Live Checks
DMARC
What Is DMARC, and Does My Domain Have It?
Read the answer, drag the interactive, then run the live check →
SPF
What Is an SPF Record, and Is Mine Valid?
Read the answer, drag the interactive, then run the live check →
DNSSEC
What Is DNSSEC, and Is My Domain Signed?
Read the answer, drag the interactive, then run the live check →
canonical tag
What Is a Canonical Tag, and Is Mine Set Right?
Read the answer, drag the interactive, then run the live check →
Core Web Vitals
Core Web Vitals: What's the Difference Between Field and Lab Data?
Read the answer, drag the interactive, then run the live check →
descriptive link text
What Is Descriptive Link Text, and Why Does It Matter?
Read the answer, drag the interactive, then run the live check →