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Glossary

The terms you meet when you run several accounts, defined plainly: what each one means, why it matters, and what SoftGlaze Browser does about it, with sources for anything from outside the app.

60 terms · Last updated 7 November 2026

A

  • Accept-Language

    Fingerprinting

    Accept-Language is the HTTP request header in which a browser lists the languages its user prefers, in order of preference, such as en-GB,en;q=0.9; scripts see the same list as navigator.languages.

  • Account linking

    Accounts and sessions

    Account linking is when a platform concludes that two or more accounts are run by the same person or device, by matching traces they share, such as cookies, device fingerprints, IP addresses, payment details or behaviour.

  • AI agent

    Automation and AI

    An AI agent is an AI model set up to work towards a goal on its own: it plans steps, calls tools such as a browser or an API, looks at the results and decides what to do next.

  • Antidetect browser

    Browsers and profiles

    An antidetect browser is a browser that runs many separate profiles, each with its own cookies, its own set of device values and its own proxy, so accounts kept in different profiles share nothing a site can compare.

  • API key

    Automation and AI

    An API key is a long secret string that a program sends with its requests to an API to show which account or app is calling, so the service can allow, limit or refuse the request.

  • ASN (Autonomous System Number)

    Proxies and networking

    An Autonomous System Number (ASN) is the number that identifies a network on the internet's routing system, such as an internet provider, a mobile operator or a hosting company, and every public IP address belongs to one.

  • AudioContext fingerprint

    Fingerprinting

    An AudioContext fingerprint is a value a site derives by generating and processing a sound with the Web Audio API, without playing it, and reading back the resulting numbers, which differ slightly between devices and browser builds.

  • Audit log

    Teams and security

    An audit log is a time-ordered record of actions taken in a system, saying who did what, to which item and when, kept so that changes can be traced and checked later.

B

  • Browser automation

    Automation and AI

    Browser automation is software controlling a web browser the way a person would, opening pages, clicking, typing and reading results, either from code, from a recorded macro or from an AI app.

  • Browser extension

    Browsers and profiles

    A browser extension is a small add-on program, built with web technologies, that adds features to a browser through its extension APIs, such as blocking ads, editing cookies or recording the screen.

  • Browser fingerprint

    Fingerprinting

    A browser fingerprint is the combination of values a website can read from your browser and device without storing anything, such as the user agent, screen size, time zone, fonts and graphics card, which together can tell one browser from another.

  • Browser macro

    Automation and AI

    A browser macro is a saved sequence of browser actions, such as opening a page, clicking, typing and waiting, that can be replayed on demand instead of doing the task by hand.

  • Browser profile

    Browsers and profiles

    A browser profile is a self-contained set of browser data (cookies, local storage, history, saved logins, extensions and settings) kept in its own folder, so two profiles on one computer don't see each other's sessions.

C

  • Canvas fingerprinting

    Fingerprinting

    Canvas fingerprinting is a technique in which a page draws hidden text and shapes on an HTML canvas, reads the pixels back and hashes them, because the exact result depends on the device's graphics hardware, drivers, fonts and operating system.

  • CAPTCHA

    Accounts and sessions

    A CAPTCHA is a challenge a website uses to tell people from automated programs, such as typing distorted text, picking images or, more and more often, passing an invisible check of the browser and its behaviour.

  • Chrome DevTools Protocol (CDP)

    Automation and AI

    The Chrome DevTools Protocol (CDP) is the interface Chromium-based browsers expose for debugging and control, a set of commands and events sent as JSON over a WebSocket, which DevTools, Puppeteer and many automation tools use.

  • Chromium

    Browsers and profiles

    Chromium is the open-source browser project that Google Chrome, Microsoft Edge, Brave, Opera, Vivaldi and many other browsers are built on.

  • ClientRects fingerprint

    Fingerprinting

    A ClientRects fingerprint is built from the exact sizes and positions, down to fractions of a pixel, that a browser calculates for elements on a page, which vary with fonts, rendering settings and the operating system.

  • Cookie warming

    Accounts and sessions

    Cookie warming is browsing ordinary websites in a new browser profile before it is used for real work, so that it collects the cookies, cache and history an everyday browser would have.

  • Cookies

    Accounts and sessions

    Cookies are small named values that a website asks the browser to store and send back with later requests, which is how a site remembers a login, a basket or a preference between page loads.

D

  • Data vault

    Teams and security

    In a browser, a data vault is a store of reusable details (names, emails, addresses, phone numbers, company details) that an autofill feature types into forms, so the same details go in the same way every time.

  • Datacenter proxy

    Proxies and networking

    A datacenter proxy is a proxy whose exit IP address belongs to a hosting or cloud company's data centre, which makes it fast and cheap but easy for sites to recognise as a server rather than a person's connection.

  • DNS blocklist (DNSBL)

    Proxies and networking

    A DNS blocklist, or DNSBL, is a published list of IP addresses with a bad record, such as sending spam, which anyone can query through ordinary DNS lookups to decide whether to trust traffic from an address.

  • DNS leak

    Proxies and networking

    A DNS leak is when the lookups that turn site names into IP addresses go out through your own network and resolver instead of through the proxy or VPN, revealing which sites you visit and roughly where you are.

  • Do Not Track

    Fingerprinting

    Do Not Track is a browser setting that sends a DNT: 1 header asking websites not to track the user; it was never made binding, and Global Privacy Control is the newer signal that some privacy laws recognise.

E

  • Encryption at rest

    Teams and security

    Encryption at rest means data is stored on disk in encrypted form, so a copied file or a stolen drive is unreadable without the key; it does not protect data while the system using it is running and unlocked.

F

  • Font fingerprinting

    Fingerprinting

    Font fingerprinting is working out which fonts are installed on a device, and how it draws them, by measuring text rendered in a long list of font names, because the installed set reflects the operating system, language packs and software on that computer.

G

  • Geolocation API

    Fingerprinting

    The Geolocation API is the browser feature that lets a page ask for the device's physical position as latitude and longitude, which the browser hands over only after the user allows it.

H

  • Headless browser

    Automation and AI

    A headless browser is a web browser running without a visible window, controlled by a program, which loads and runs pages exactly as a normal browser would but shows nothing on screen.

  • HTTP proxy

    Proxies and networking

    An HTTP proxy is a proxy that speaks the web's own protocol: the browser sends it ordinary HTTP requests, and for HTTPS asks it to open a tunnel to the site with the CONNECT method.

I

  • IP reputation

    Proxies and networking

    IP reputation is the judgement that security services and websites keep about an IP address, based on what has been seen from it before (spam, attacks, fraud, heavy automation) and on the kind of network it belongs to.

  • ISP proxy

    Proxies and networking

    An ISP proxy, sometimes called a static residential proxy, is a proxy that runs on a server in a data centre but uses an IP address registered to an internet service provider, combining server speed with an address that looks like a consumer connection.

L

  • Local port scanning

    Fingerprinting

    Local port scanning is when a web page tries to reach addresses on your own computer or local network, such as 127.0.0.1 or 192.168.0.1, to see which ports answer, which can reveal installed software and act as a fingerprint.

  • Local storage

    Accounts and sessions

    Local storage is the space a browser gives each website to keep data on your device between visits, most simply through the localStorage interface, where values stay until the site or the user removes them.

M

  • MCP (Model Context Protocol)

    Automation and AI

    The Model Context Protocol (MCP) is an open standard that lets AI applications connect to outside tools and data through MCP servers, which describe the tools they offer so the AI can call them.

  • Mobile proxy

    Proxies and networking

    A mobile proxy is a proxy whose exit IP address belongs to a mobile network operator, usually a 4G or 5G connection, where one public address is shared by many subscribers at once.

  • Multi-accounting

    Browsers and profiles

    Multi-accounting is running more than one account on the same platform from one person, team or computer, for example separate brands, separate clients or separate markets.

N

  • navigator.webdriver

    Fingerprinting

    navigator.webdriver is a browser property that the W3C WebDriver standard requires to be true when the browser is under automated control, so a page can tell an automated session from a person using the browser.

P

  • Playwright

    Automation and AI

    Playwright is an open-source browser automation library from Microsoft that controls Chromium, Firefox and WebKit from one API, available for JavaScript, Python, Java and .NET.

  • Proxy authentication

    Proxies and networking

    Proxy authentication is the login step a proxy requires before it will relay your traffic, usually a username and password, sometimes an allow-list of your own IP addresses instead.

  • Proxy server

    Proxies and networking

    A proxy server is a computer that forwards your requests to websites and passes the answers back, so the sites see the proxy's IP address instead of yours.

  • Puppeteer

    Automation and AI

    Puppeteer is an open-source JavaScript library from Google's Chrome team for controlling Chrome or Firefox from code, through the Chrome DevTools Protocol or WebDriver BiDi.

Q

  • QUIC and HTTP/3

    Proxies and networking

    QUIC is an encrypted transport protocol that runs over UDP instead of TCP, and HTTP/3 is the version of HTTP that runs on it; browsers use them to load sites faster where the server supports them.

R

  • reCAPTCHA

    Accounts and sessions

    reCAPTCHA is Google's captcha service; version 2 shows the "I'm not a robot" checkbox and image challenges, and version 3 runs invisibly and returns a score from 0.0 to 1.0 that the site uses to decide what to do.

  • Residential proxy

    Proxies and networking

    A residential proxy is a proxy whose exit IP address belongs to a home internet connection, so sites see traffic arriving from an ordinary household rather than from a server in a data centre.

  • Rotating proxy

    Proxies and networking

    A rotating proxy is a proxy service that changes the exit IP address it uses for you, on every request, after a set time or when you ask, usually by routing you through a gateway to a large pool of addresses.

S

  • Selenium

    Automation and AI

    Selenium is an open-source browser automation project whose WebDriver libraries control Chrome, Edge, Firefox and Safari through each browser's driver, using the W3C WebDriver standard.

  • Session

    Accounts and sessions

    A session is the period during which a website recognises you as the same visitor, usually because the browser sends back a cookie holding a random session ID that the server links to your login.

  • SOCKS5

    Proxies and networking

    SOCKS5 is a proxy protocol that relays network connections of any kind between your device and a destination, with optional username and password authentication, and can pass the destination's hostname for the proxy to resolve.

  • Sticky session

    Proxies and networking

    A sticky session is a proxy setting that keeps you on the same exit IP address for a period of time or until you ask for a new one, instead of changing it on every request.

T

  • Team roles (role-based access control)

    Teams and security

    Role-based access control (RBAC) is a way of managing permissions in which each person is given a role, and the role, not the individual, decides what they can see and do.

  • Timezone mismatch

    Fingerprinting

    A timezone mismatch is when the time zone a browser reports does not fit the location of the IP address it connects from, for example a browser on London time arriving from a New York address.

  • TLS fingerprint (JA3 and JA4)

    Fingerprinting

    A TLS fingerprint is a short summary of how a client opens an encrypted connection (the TLS version, cipher suites and extensions in its first message) that identifies the software making the connection, whatever its user agent says.

  • TOTP

    Accounts and sessions

    TOTP (time-based one-time password) is the algorithm behind most authenticator apps: it combines a shared secret with the current time to produce a short code, usually six digits, that changes every 30 seconds.

  • Two-factor authentication (2FA)

    Accounts and sessions

    Two-factor authentication (2FA) is a sign-in that needs two different kinds of proof, typically a password plus a one-time code from an authenticator app, a text message or a security key.

U

  • User agent

    Fingerprinting

    A user agent string is the line of text a browser sends with every request, and shows to scripts, naming the browser, its version, the rendering engine and the operating system.

  • User-Agent Client Hints

    Fingerprinting

    User-Agent Client Hints are a newer way for a browser to describe itself: a short brand and version list sent in Sec-CH-UA headers, with more detail, such as the platform version, architecture and full version, given only when a site asks for it.

V

  • VPN

    Proxies and networking

    A VPN (virtual private network) is an encrypted tunnel that carries all of a device's network traffic to a VPN server, so every app on the device appears to come from the server's IP address.

W

  • WebGL fingerprint

    Fingerprinting

    A WebGL fingerprint is what a site learns from the browser's 3D graphics interface: the graphics card and driver names it reports, its limits and supported extensions, and the exact pixels it produces when it renders a test scene.

  • WebRTC leak

    Fingerprinting

    A WebRTC leak is when a page learns your real IP address through the browser's real-time communication feature, which gathers network addresses directly instead of through the proxy that carries the rest of your traffic.