Orisift is a developer API for checking contact and network data. Phone checks cover format, numbering plan and reserved fiction ranges such as UK 020 7946 0xxx and US 555-0100 to 0199. Email checks look at the domain: MX, Null MX, DNS and a match against about 9,000 known throwaway-provider domains. IP checks flag special-purpose, bogon and reserved ranges and read reverse DNS. Domain checks read A, MX, NS, SPF and DMARC. Orisift does not check mailboxes, carriers or phone liveness. Get 3 free checks a day without an account, or 500 credits on signup. Node/TS SDK: @orisift/sdk on npm.
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