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The Markup Validation Service is a validator by the World Wide Web Consortium (W3C) that allows Internet users to check pre-HTML5 HTML and XHTML documents for well-formed markup against a document type definition (DTD). Markup validation is an important step towards ensuring the technical quality of web pages.
Email authentication, or validation, is a collection of techniques aimed at providing verifiable information about the origin of email messages by validating the domain ownership of any message transfer agents (MTA) who participated in transferring and possibly modifying a message.
DomainKeys Identified Mail (DKIM) is an email authentication method designed to detect forged sender addresses in email (email spoofing), a technique often used in phishing and email spam. DKIM allows the receiver to check that an email that claimed to have come from a specific domain was indeed authorized by the owner of that domain. [ 1 ]
If the email passes the authentication, it will be delivered and can be trusted. If the email fails the check, depending on the instructions held within the DMARC record the email could be delivered, quarantined or rejected. DMARC extends two existing email authentication mechanisms, Sender Policy Framework (SPF) and DomainKeys Identified Mail ...
HTML email is the use of a subset of HTML to provide ... "Email standards project" Acid test ... Although the difference in download time between plain ...
Certified Server Validation (CSV) is a technical method of email authentication intended to fight spam. Its focus is the SMTP HELO-identity of mail transfer agents . Purpose
From your preferences, go to the section entitled User profile, and scroll down to Email options, if desired check the box next to Enable email from other users. Click the button in that section; an email will be sent to your email address with a confirmation link. If you see no link, go to Special:ConfirmEmail.
Data download allows webmasters to access the first 1000 results in a CSV file to analyze the results. Keyword search tool allows webmasters to explore new keywords. Robots.txt validator allows webmasters to check if their robots.txt file meets the standard. Markup validator allows webmasters to check if their site meets W3C standards.