What CrowWake watches
Plain-English guides for every check—written for humans, shaped by what people actually search for (DataForSEO US volume & SERP).
SPF
What is an SPF record? (plain English)
DKIM
What is DKIM? Email’s tamper-evident seal
DMARC
What is DMARC? The policy that stops spoofing
MX
What is an MX record? Where your email is delivered
DNS
DNS A records: does the website apex resolve?
SSL
SSL certificates: what happens when they expire
Security
Obvious web security: HSTS, clickjacking, HTTPS redirects
CAA
CAA records: who may issue your certificates?
MTA-STS
MTA-STS: force TLS for inbound mail
Website
Website up: is there a real HTTPS homepage?
Expiry
Domain expiry via RDAP
Performance
Why we pulse HTTPS speed (TTFB-style)
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