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Validating identify comcast

For example: Data type validation is customarily carried out on one or more simple data fields.The simplest kind of data type validation verifies that the individual characters provided through user input are consistent with the expected characters of one or more known primitive data types; as defined in a programming language or data storage and retrieval mechanism.

Code and cross-reference validation includes tests for data type validation, combined with one or more operations to verify that the user-supplied data is consistent with one or more external rules, requirements, or validity constraints relevant to a particular organization, context or set of underlying assumptions.As of today, over 17.8M residential customers of our Xfinity Internet service are using DNSSEC-validating DNS servers.In addition, all of the domain names owned by Comcast, numbering over 5,000, have been cryptographically signed.I am pleased to announce that Comcast, the largest ISP in the U.S., is the first large ISP in the North America to have fully implemented Domain Name System Security Extensions (DNSSEC).The second role is to cryptographically sign the domain names that we own, such as xfinity.com, so that when our customers or others using DNSSEC try to connect to services in those domains, they can validate the security of the associated DNS responses. While in the past those domains may have wanted to do so but felt it would have limited effect, they now can work on signing their domains knowing that the largest ISP in the U. can validate those signatures on behalf of our customers.

For more information, you may also want to check out this brief introductory video about DNSSEC, our DNSSEC Information Center, as well as our Constant Guard™ page.

Structured validation allows for the combination of any of various basic data type validation steps, along with more complex processing.

Such complex processing may include the testing of conditional constraints for an entire complex data object or set of process operations within a system.

All of our servers, both the ones that customers use and the ones authoritative for our domain names, also fully support IPv6. GOV have followed suit and signed their respective TLDs.

ICANN in 2010 took the first step, by signing the global DNS root. This has enabled ISPs like Comcast to both sign domain names in DNSSEC-enabled TLDs, and also to validate DNSSEC when our customers use the Internet. The first role is perhaps the most critical, which is validating DNSSEC as part of the DNS lookups performed for our customers.

These additional validity constraints may involve cross-referencing supplied data with a known look-up table or directory information service such as LDAP.