Validate Domain Names as outlined by RFC 2181
ISC License
Easy property validation for JavaScript, Node and Express.
A Node.js module for verifying email addresses
JavaScript API to work easily with complex domain names, subdomains and well-known TLDs.
A node module for comparing DNS record strings for equality
validate an email address according to RFCs 5321, 5322, and others
Email validation with more than 10K disposable/temporary email domains
A small lib to validate IP addresses
URL tools at your ease
Validate URLs for sane values
Check to see if domain names are available using the DNSimple api.
A library to parse domain names for Node.js, taking into account the public suffix list
A regular expression for most valid domains (including the latest TLDs)
A list of names that should be reserved in multitenant apps.
Promises from domains
Resolve the domain of an email address to see if it even has a chance of delivering