Proxy Dictionary
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A
Anonymous Proxy
A proxy that hides your real IP but reveals that a proxy is in use through HTTP headers like Via or Proxy-Connection.
ASN
Autonomous System Number. A unique identifier assigned to networks. Websites use ASN data to determine whether an IP belongs to a residential ISP or a datacenter.
Akamai Bot Manager
Advanced bot detection platform used by Nike, major retailers, and others. Requires premium residential IPs and proper browser fingerprinting to bypass.
B
Backconnect Proxy
A gateway server that provides access to a pool of rotating proxies. You connect to one endpoint; the gateway routes requests through different exit IPs automatically.
Bandwidth / Traffic
The amount of data transferred through a proxy. Residential proxies are typically billed per GB of bandwidth used. Cheapest Proxies starts at $1.99/GB.
C
Carrier-Grade NAT (CGN)
A technology used by mobile carriers where thousands of mobile subscribers share one public IP address. This makes mobile proxies extremely difficult to detect and block.
Cloudflare
A CDN and security provider that includes bot detection. Basic Cloudflare is bypassed with residential proxies; advanced Cloudflare requires headless browsers with stealth plugins.
Concurrent Connections
The number of simultaneous proxy connections a service supports. Higher concurrency allows faster parallel scraping. Most plans have specific limits.
CAPTCHA
Challenge-response test used by websites to distinguish humans from bots. Triggered by unusual traffic patterns from single IPs. Rotating residential proxies reduce CAPTCHA frequency.
D
Datacenter Proxy
A proxy hosted on a commercial server in a data center. Faster and cheaper than residential proxies, but detectable by sites using ASN reputation checks.
DataDome
A commercial bot detection and mitigation service used by e-commerce and media companies. Detects datacenter IPs; residential and ISP proxies have the best bypass rates.
E
Elite Proxy
Also called a high-anonymity proxy. Hides your IP and does not reveal that a proxy is being used. Quality residential proxies are naturally elite-level.
Exit IP
The IP address that the target website sees — the proxy's IP that exits onto the internet. With a backconnect gateway, this changes with each rotation.
G
Geotargeting
Selecting proxy IPs from a specific country, region, or city. Essential for accessing geo-restricted content and collecting location-specific data.
H
HTTP Proxy
A proxy that operates at the application layer, handling HTTP and HTTPS web traffic. The most common proxy protocol for web scraping and browsing.
Headless Browser
A web browser without a visible UI, controlled programmatically. Used with proxies for scraping JavaScript-heavy sites (Playwright, Puppeteer, Selenium).
I
ISP Proxy
Also called a static residential proxy. A permanent IP registered under a residential ISP but hosted on a server — combining residential trust with datacenter speed.
IP Pool
The total collection of IP addresses available in a proxy network. Larger pools (50M+) provide more geographic diversity and reduce IP reuse rates.
IP Rotation
The process of automatically changing IP addresses for outgoing requests. Either managed by a gateway (most common) or manually by cycling through a proxy list.
IP Reputation
A score assigned to an IP based on its history of behavior. IPs previously used for spam, scraping, or fraud have lower reputation scores and face more blocking.
IPv4 / IPv6
Two versions of the internet protocol addressing system. IPv4 (32-bit, e.g., 192.168.1.1) is universal but limited. IPv6 (128-bit) has near-unlimited addresses but not all sites support it.
M
Mobile Proxy
A proxy routing through a real 4G/5G mobile device connected to a carrier network. The highest trust level due to carrier-grade NAT, where thousands of users share one IP.
P
Proxy Gateway
A central server that provides access to a proxy pool. Users connect to the gateway; it routes traffic through pool IPs. Handles rotation, health monitoring, and authentication.
R
Residential Proxy
A proxy IP address assigned by a real ISP to a home user. Appears as a genuine residential connection to websites, providing the highest level of trust and anonymity.
Rotating Proxy
A proxy that automatically changes its IP address with each request or at set intervals. Essential for large-scale scraping to avoid rate limits and IP bans.
Rate Limiting
A website's restriction on how many requests can be made from one IP address within a time period. Proxy rotation circumvents per-IP rate limits.
S
Sticky Session
A proxy configuration that maintains the same IP address for a defined duration, typically 1–30 minutes. Used when consistent identity is needed across multiple requests.
SOCKS5
A network protocol that routes all TCP and UDP traffic through a proxy at the transport layer. More versatile than HTTP proxies — works with any application, not just web browsers.
Session Management
Controlling how long one IP is used before rotation. Rotating sessions change every request; sticky sessions maintain the same IP for a set duration.
T
Transparent Proxy
A proxy that passes your real IP in HTTP headers (X-Forwarded-For). Provides no meaningful anonymity — used for caching and filtering, not privacy.
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