CrowWake

What CrowWake watches

Plain-English guides for every CrowWake check — what it means and what to do when something breaks.

SPF What is an SPF record? (plain English) SPF monitoring SPF monitoring: watch the guest list before mail breaks DKIM What is DKIM? Email’s tamper-evident seal DKIM monitoring DKIM monitoring: watch selectors before the seal breaks DMARC What is DMARC? The policy that stops spoofing DMARC monitoring DMARC monitoring: watch _dmarc before spoofers do Email auth What is email authentication? SPF, DKIM and DMARC together Email auth monitoring Email authentication monitoring: watch SPF, DKIM and DMARC as one flock Domain monitoring Domain monitoring: watch DNS, email auth, SSL and uptime as one flock MX What is an MX record? Where your email is delivered MX monitoring MX monitoring: watch inbound hosts before mail goes dark DNS A What is an A record? Name to IPv4 DNS monitoring DNS monitoring: catch a silent A-record wipe early Apex domain What is an apex domain? Zone apex, bare domain, apex record Apex monitoring Apex domain monitoring: watch the zone apex before the bare name goes dark CNAME at apex CNAME at apex: why it breaks (ALIAS, ANAME, flattening) SSL certificate expired SSL certificate expired: what the browser warning means (and how to fix it) SSL monitoring SSL certificate monitoring: watch expiry before browsers scream Security Obvious web security: HSTS, clickjacking, HTTPS redirects, open ports Security headers monitoring Security headers monitoring: watch HSTS, nosniff, framing & HTTPS redirect Open ports What is an open port scanner? Risky ports in plain English HSTS What is HSTS? HTTP Strict-Transport-Security explained X-Frame-Options What is X-Frame-Options? Stop clickjacking in plain English HTTPS redirect HTTP to HTTPS redirect: force HTTPS in plain English X-Content-Type-Options Missing X-Content-Type-Options header: nosniff and how to fix CAA record What is a CAA record? Check CAA records (tester) in plain English CAA monitoring CAA monitoring: watch the issuance allow-list before renew fails MTA-STS What is MTA-STS? Mail TLS policy + free MTA-STS checker MTA-STS monitoring MTA-STS monitoring: watch mail TLS policy before cleartext returns BIMI What is BIMI? Brand logos in the inbox BIMI monitoring BIMI monitoring: watch inbox brand-mark DNS before the logo vanishes TLS-RPT monitoring TLS-RPT monitoring: watch TLS reporting before failures go silent TLS-RPT / TLS reporting What is TLS-RPT? TLS reporting + free TLS-RPT checker Website monitoring Website monitoring: is the HTTPS homepage answering? Uptime monitoring Uptime monitoring: watch HTTPS so downtime crows early HTTP status monitoring HTTP status monitoring: watch 2xx vs 4xx/5xx before “site down” is vague Website Website up: is there a real HTTPS homepage? Expiry Domain expiry via RDAP: renew before the brand dies Expiry monitoring Domain expiry monitoring: WHOIS/RDAP before the name dies TTFB What is TTFB? Time to First Byte in plain English Performance monitoring Website performance monitoring: watch TTFB before tickets pile up Performance Why we pulse HTTPS speed (TTFB-style)

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