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  2. DNS blocking - Wikipedia

    en.wikipedia.org/wiki/DNS_blocking

    Domain Name System blocking, or DNS blocking / filtering, is a strategy for making it difficult for users to locate specific domains or websites on the Internet. It was first introduced in 1997 as a means to block spam email from known malicious IP addresses .

  3. DNS Certification Authority Authorization - Wikipedia

    en.wikipedia.org/wiki/DNS_Certification...

    RFC 8657 specifies "accounturi" and "validationmethods" parameters which allow users to specify desired methods of domain control validation (DCV) as defined in ACME protocol. For example, website administrators can bind a domain they control to a particular account registered with their desired Certification Authority.

  4. DMARC - Wikipedia

    en.wikipedia.org/wiki/DMARC

    So, for example, "a.b.c.d.example.com.au" and "example.com.au" have the same Organizational Domain, because _dmarc.example.com.au is the only defined DMARC record among all the subdomains involved, including _dmarc.au. As this allows domain owners to define domain roles, it is deemed to be more accurate than the Public Suffix List. [6]

  5. Facebook onion address - Wikipedia

    en.wikipedia.org/wiki/Facebook_onion_address

    ProPublica explicitly referenced the existence of Facebook's .onion site when they started their own onion service. [5] The site also makes it easier for Facebook to differentiate between accounts that have been caught up in a botnet and those that legitimately access Facebook through Tor. [6]

  6. Domain fronting - Wikipedia

    en.wikipedia.org/wiki/Domain_fronting

    After TLS encryption is established, the HTTP header reroutes to another domain hosted on the same CDN. Domain fronting is a technique for Internet censorship circumvention that uses different domain names in different communication layers of an HTTPS connection to discreetly connect to a different target domain than that which is discernable to third parties monitoring the requests and ...

  7. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

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