Browser Profile
A browser profile is a saved set of browser data such as cookies, history, and fingerprint settings. In automation it isolates identities so each session looks like a distinct, consistent user.
Definition
A browser profile is a container of browser state, including cookies, local storage, saved logins, browsing history, extensions, and fingerprint attributes like user agent, timezone, and screen size. Each profile behaves like a separate, persistent user identity.
How it works in automation
In browser automation and anti-detect browsers, profiles let you run many isolated sessions in parallel. Each profile keeps its own cookies and fingerprint, so a target site sees consistent, believable returning users rather than one machine pretending to be many. Automation tools persist profiles with a userDataDir or dedicated profile storage.
Why it matters for scraping and proxies
- Identity isolation: Pair each profile with its own proxy IP so cookies and IP stay aligned, avoiding mismatches that trigger bans.
- Session persistence: Stay logged in across runs without repeating CAPTCHAs or logins.
- Account management: Manage multiple accounts safely, each in a clean, separate environment.
Combining unique profiles with residential proxies and sticky sessions is a core technique for scraping and multi-account operations without detection.
Examples
Persisting a profile in Puppeteer with userDataDir: './profiles/user1'
Assigning a unique proxy IP to each anti-detect browser profile
Keeping a logged-in session across scraping runs via a saved profile
Common Use Cases
Frequently Asked Questions
Keep Learning
All termsResidential Proxy
A residential proxy routes your traffic through a real home internet connection, so websites see an ordinary ISP customer rather than a server in a data centre.
Read definitionAnti-Detect Browser
An anti-detect browser lets you run many isolated browser profiles, each with its own fingerprint, cookies and proxy, so sites see them as separate, genuine users.
Read definitionSticky Session
A sticky session keeps the same proxy IP for a set period, so multi-step workflows like logging in and checking out stay on one consistent address.
Read definitionBrowser Fingerprinting
Browser fingerprinting identifies you by combining dozens of details your browser reveals — screen size, fonts, GPU, timezone — into a signature unique enough to track you without any cookies.
Read definition