1
USPTO
120
Freeware
Checker Version - checking biotechnology Sequence Listings.
45
Ashkon Software L.L.C.
3,195
Freeware
Extremely simple utility to check and verify all kinds of credit card numbers.
7
OnlineInvestingSite
429
Check credit card numbers for validity.
9
AI Internet Solutions LLC
402
Freeware
Lets you perform accurate syntax checking tasks for HTML, XHTML, and CSS files.
CZ.NIC Labs
24
Freeware
This app allows you to check the validity of DNSSEC signed DNS records.
Sergey Stadnik
1
Shareware
Webholmes is light yet powerful Internet file search agent. Webholmes will check validity of retreiv....
PSCode - Andrew Thompson
Freeware
The XML Well formedness checker will check part of the validity of XML content.
1
SecurFox
11
Freeware
Credit Card Checker allows you instantly check credit card number for validity.
3
Email2Verify
394
Shareware
It helps you to check and verify the validity of all your email addresses.
CZ.NIC Labs
17
Freeware
The extension can check the existence and validity of DNSSEC signed DNS records.
