Domains, Websites and Infrastructure
Autonomous System Number
An Autonomous System Number (ASN) is a unique identifier for a network under a common routing policy on the internet.
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Domains, Websites and Infrastructure Terms
Domains, DNS, TLS, hosting, CDN, and lookalike websites — HTTPS or domain age alone does not prove legitimacy.
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21 published definitions in this topic.
Domains, Websites and Infrastructure
Bulletproof Hosting
Bulletproof hosting refers to hosting providers that are reputedly slow to act on abuse complaints, attracting criminal infrastructure.
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Certificate Authority
A certificate authority is an organization that issues TLS certificates after performing validation according to its policies and industry requirements.
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Certificate Transparency
Certificate Transparency is a system of public logs that record issued TLS certificates to detect mis-issuance.
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Content Delivery Network
A content delivery network is a distributed cache and proxy network that serves web content from locations closer to users.
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DNSSEC
DNSSEC is a suite of extensions that cryptographically authenticate DNS data to help prevent certain spoofing and cache-poisoning attacks.
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Domain Age
Domain age is how long a domain name has been registered, sometimes used as a weak risk signal in trust scoring.
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Domain Name
A domain name is a human-readable identifier (such as example.com) that maps to internet services via DNS.
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Domain Name System
The Domain Name System is the hierarchical system that resolves domain names to IP addresses and other records.
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HSTS
HTTP Strict Transport Security is a policy mechanism that tells browsers to interact with a host only over HTTPS for a period of time.
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HTTPS
HTTPS is HTTP over TLS—encrypted web traffic between a browser and a server, typically indicated by a padlock UI.
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IP Address
An IP address is a numeric identifier assigned to devices or interfaces for routing traffic on IP networks.
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Lookalike Website
A lookalike website mimics a trusted brand’s design and branding on a different domain to phish or defraud visitors.
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Open Redirect
An open redirect is a website flaw that forwards users to attacker-controlled URLs while appearing to start on a trusted domain.
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Registrar Lock
Registrar lock is a status that restricts unauthorized transfers or changes to a domain registration.
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Registration Data Access Protocol
Registration Data Access Protocol (RDAP) is a standardized protocol for accessing registration data for domains and IP resources.
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Subdomain Takeover
A subdomain takeover occurs when a DNS record points to a deprovisioned cloud resource that an attacker claims.
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TLS Certificate
A TLS certificate is a digital certificate used to authenticate a server’s public key for encrypted HTTPS connections.
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Typosquat Domain Seizure
Typosquat domain seizure is a legal or registrar action that suspends or transfers domains used for trademark-abusive typosquatting.
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Web Application Firewall
A web application firewall filters HTTP traffic to block common web attacks such as SQLi and XSS patterns.
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WHOIS
WHOIS is a traditional protocol and directory practice for querying registration data about domains and internet numbers.
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