Browser Headers¶

pyfetcher generates realistic browser headers with full identity consistency. Each browser profile bundles User-Agent, Client Hints (Sec-CH-UA-), Sec-Fetch- metadata, and Accept headers into a coherent identity.

Available Profiles¶

Profile Name	Browser	Platform	Mobile
`chrome_win`	Chrome	Windows	No
`chrome_mac`	Chrome	macOS	No
`chrome_linux`	Chrome	Linux	No
`chrome_android`	Chrome	Android	Yes
`firefox_win`	Firefox	Windows	No
`firefox_mac`	Firefox	macOS	No
`firefox_linux`	Firefox	Linux	No
`safari_mac`	Safari	macOS	No
`safari_ios`	Safari	iOS	Yes
`edge_win`	Edge	Windows	No
`edge_mac`	Edge	macOS	No

Using Profiles¶

Fixed profile:

from pyfetcher.headers.browser import BrowserHeaderProvider

provider = BrowserHeaderProvider("chrome_win")

Rotating profiles (weighted by market share):

from pyfetcher.headers.rotating import RotatingHeaderProvider

provider = RotatingHeaderProvider()

Random user-agent generation:

from pyfetcher.headers.ua import random_user_agent

ua = random_user_agent(browser="chrome", platform="macOS")