scrapy-impersonate

scrapy-impersonate is a Scrapy download handler. This project integrates curl_cffi to perform HTTP requests, so it can impersonate browsers' TLS signatures or JA3 fingerprints.

Installation

pip install scrapy-impersonate

Activation

Replace the default http and/or https Download Handlers through DOWNLOAD_HANDLERS

DOWNLOAD_HANDLERS = {
    "http": "scrapy_impersonate.ImpersonateDownloadHandler",
    "https": "scrapy_impersonate.ImpersonateDownloadHandler",
}

Also, be sure to install the asyncio-based Twisted reactor:

TWISTED_REACTOR = "twisted.internet.asyncioreactor.AsyncioSelectorReactor"

Basic usage

Set the impersonate Request.meta key to download a request using curl_cffi:

import scrapy


class ImpersonateSpider(scrapy.Spider):
    name = "impersonate_spider"
    custom_settings = {
        "DOWNLOAD_HANDLERS": {
            "http": "scrapy_impersonate.ImpersonateDownloadHandler",
            "https": "scrapy_impersonate.ImpersonateDownloadHandler",
        },
        "TWISTED_REACTOR": "twisted.internet.asyncioreactor.AsyncioSelectorReactor",
    }

    def start_requests(self):
        for browser in ["chrome110", "edge99", "safari15_5"]:
            yield scrapy.Request(
                "https://tls.browserleaks.com/json",
                dont_filter=True,
                meta={"impersonate": browser},
            )

    def parse(self, response):
        # ja3_hash: 773906b0efdefa24a7f2b8eb6985bf37
        # ja3_hash: cd08e31494f9531f560d64c695473da9
        # ja3_hash: 2fe1311860bc318fc7f9196556a2a6b9
        yield {"ja3_hash": response.json()["ja3_hash"]}

Supported browsers

The following browsers can be impersonated

Browser	Version	Build	OS	Name
	99	99.0.4844.51	Windows 10	chrome99
	99	99.0.4844.73	Android 12	chrome99_android
	100	100.0.4896.75	Windows 10	chrome100
	101	101.0.4951.67	Windows 10	chrome101
	104	104.0.5112.81	Windows 10	chrome104
	107	107.0.5304.107	Windows 10	chrome107
	110	110.0.5481.177	Windows 10	chrome110
	116	116.0.5845.180	Windows 10	chrome116
	119	119.0.6045.199	macOS Sonoma	chrome119
	120	120.0.6099.109	macOS Sonoma	chrome120
	99	99.0.1150.30	Windows 10	edge99
	101	101.0.1210.47	Windows 10	edge101
	15.3	16612.4.9.1.8	MacOS Big Sur	safari15_3
	15.5	17613.2.7.1.8	MacOS Monterey	safari15_5
	17.0	unclear	MacOS Sonoma	safari17_0
	17.2	unclear	iOS 17.2	safari17_2_ios

Thanks

This project is inspired by the following projects:

• curl_cffi - Python binding for curl-impersonate via cffi. A http client that can impersonate browser tls/ja3/http2 fingerprints.
• curl-impersonate - A special build of curl that can impersonate Chrome & Firefox
• scrapy-playwright - Playwright integration for Scrapy