PrismKitNetworkSPF & DMARC Record GeneratorSPF & DMARC Record GeneratorRuns in your browserLocalCopy linkMarkdownBuild SPF and DMARC TXT records for your domain, with a lookup counter and a ready-to-paste zone file line.MAC Address LookupLook up the hardware vendor registered to a MAC address or OUI prefix.DKIM Record GeneratorGenerate a DKIM key pair in your browser or paste an existing public key, and get the selector._domainkey TXT record to publish.