Are TLS fingerprints consistent across different versions of chrome?

[ponponon]

There are many values for the impersonate parameter

BrowserTypeLiteral = Literal[
    # Edge
    "edge99",
    "edge101",
    # Chrome
    "chrome99",
    "chrome100",
    "chrome101",
    "chrome104",
    "chrome107",
    "chrome110",
    "chrome116",
    "chrome119",
    "chrome120",
    "chrome123",
    "chrome124",
    "chrome99_android",
    # Safari
    "safari15_3",
    "safari15_5",
    "safari17_0",
    "safari17_2_ios",
    # alias
    "chrome",
    "edge",
    "safari",
    "safari_ios",
    "chrome_android",
]

What I want to know is, do these values correspond to the same TLS fingerprint? For example, whether there is a difference between the tls fingerprint of chrome99 and chrome100. If there's a difference, I need to pick it up randomly to confuse the target site

[perkfly]

Yes, some of them are indeed the same. To figure out it, you can try to visit the following targets with each type and compare the results.

• https://tls.browserleaks.com/json
• https://tools.scrapfly.io/api/fp/ja3

[ponponon]

Thank you for your testing ideas. I have conducted some tests.

The code and results used in the tests are as follows, which can also provide some references for others:

from curl_cffi import requests

# Define the impersonate parameters you want to test
browser_types = [
    "chrome99",
    "chrome100",
    "chrome101",
    "chrome104",
    "chrome107",
    "chrome110",
    "chrome116",
    "chrome119",
    "chrome120",
    "chrome123",
    "chrome124",
    # "chrome99_android",
]

# URLs to check TLS fingerprints
urls = [
    "https://tls.browserleaks.com/json",
    # "https://tools.scrapfly.io/api/fp/ja3"
]

def fetch_tls_fingerprint(browser_type):
    headers = {"User-Agent": "curl_cffi"}
    for url in urls:
        response = requests.get(url, impersonate=browser_type, headers=headers)
        print(f"Browser Type: {browser_type}\nURL: {url}\nTLS Fingerprint:\n{response.text}\n{'-'*60}\n")

# Loop through each browser type and fetch the TLS fingerprint
for browser in browser_types:
    fetch_tls_fingerprint(browser)

Browser Type: chrome99
URL: https://tls.browserleaks.com/json
TLS Fingerprint:
{
  "user_agent": "curl_cffi",
  "ja3_hash": "cd08e31494f9531f560d64c695473da9",
  "ja3_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-23-65281-10-11-35-16-5-13-18-51-45-43-27-17513-21,29-23-24,0",
  "ja3n_hash": "aa56c057ad164ec4fdcb7a5a283be9fc",
  "ja3n_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-5-10-11-13-16-18-21-23-27-35-43-45-51-17513-65281,29-23-24,0",
  "akamai_hash": "4f04edce68a7ecbe689edce7bf5f23f3",
  "akamai_text": "1:65536;3:1000;4:6291456;6:262144|15663105|0|m,a,s,p"
}

------------------------------------------------------------

Browser Type: chrome100
URL: https://tls.browserleaks.com/json
TLS Fingerprint:
{
  "user_agent": "curl_cffi",
  "ja3_hash": "cd08e31494f9531f560d64c695473da9",
  "ja3_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-23-65281-10-11-35-16-5-13-18-51-45-43-27-17513-21,29-23-24,0",
  "ja3n_hash": "aa56c057ad164ec4fdcb7a5a283be9fc",
  "ja3n_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-5-10-11-13-16-18-21-23-27-35-43-45-51-17513-65281,29-23-24,0",
  "akamai_hash": "4f04edce68a7ecbe689edce7bf5f23f3",
  "akamai_text": "1:65536;3:1000;4:6291456;6:262144|15663105|0|m,a,s,p"
}

------------------------------------------------------------

Browser Type: chrome101
URL: https://tls.browserleaks.com/json
TLS Fingerprint:
{
  "user_agent": "curl_cffi",
  "ja3_hash": "cd08e31494f9531f560d64c695473da9",
  "ja3_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-23-65281-10-11-35-16-5-13-18-51-45-43-27-17513-21,29-23-24,0",
  "ja3n_hash": "aa56c057ad164ec4fdcb7a5a283be9fc",
  "ja3n_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-5-10-11-13-16-18-21-23-27-35-43-45-51-17513-65281,29-23-24,0",
  "akamai_hash": "4f04edce68a7ecbe689edce7bf5f23f3",
  "akamai_text": "1:65536;3:1000;4:6291456;6:262144|15663105|0|m,a,s,p"
}

------------------------------------------------------------

Browser Type: chrome104
URL: https://tls.browserleaks.com/json
TLS Fingerprint:
{
  "user_agent": "curl_cffi",
  "ja3_hash": "cd08e31494f9531f560d64c695473da9",
  "ja3_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-23-65281-10-11-35-16-5-13-18-51-45-43-27-17513-21,29-23-24,0",
  "ja3n_hash": "aa56c057ad164ec4fdcb7a5a283be9fc",
  "ja3n_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-5-10-11-13-16-18-21-23-27-35-43-45-51-17513-65281,29-23-24,0",
  "akamai_hash": "4f04edce68a7ecbe689edce7bf5f23f3",
  "akamai_text": "1:65536;3:1000;4:6291456;6:262144|15663105|0|m,a,s,p"
}

------------------------------------------------------------

Browser Type: chrome107
URL: https://tls.browserleaks.com/json
TLS Fingerprint:
{
  "user_agent": "curl_cffi",
  "ja3_hash": "cd08e31494f9531f560d64c695473da9",
  "ja3_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-23-65281-10-11-35-16-5-13-18-51-45-43-27-17513-21,29-23-24,0",
  "ja3n_hash": "aa56c057ad164ec4fdcb7a5a283be9fc",
  "ja3n_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-5-10-11-13-16-18-21-23-27-35-43-45-51-17513-65281,29-23-24,0",
  "akamai_hash": "a345a694846ad9f6c97bcc3c75adbe26",
  "akamai_text": "1:65536;2:0;3:1000;4:6291456;6:262144|15663105|0|m,a,s,p"
}

------------------------------------------------------------

Browser Type: chrome110
URL: https://tls.browserleaks.com/json
TLS Fingerprint:
{
  "user_agent": "curl_cffi",
  "ja3_hash": "3533cef8d9132a482b76ff8337583f78",
  "ja3_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,65281-11-10-43-27-51-35-45-16-13-18-5-23-17513-0-21,29-23-24,0",
  "ja3n_hash": "aa56c057ad164ec4fdcb7a5a283be9fc",
  "ja3n_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-5-10-11-13-16-18-21-23-27-35-43-45-51-17513-65281,29-23-24,0",
  "akamai_hash": "a345a694846ad9f6c97bcc3c75adbe26",
  "akamai_text": "1:65536;2:0;3:1000;4:6291456;6:262144|15663105|0|m,a,s,p"
}

------------------------------------------------------------

Browser Type: chrome116
URL: https://tls.browserleaks.com/json
TLS Fingerprint:
{
  "user_agent": "curl_cffi",
  "ja3_hash": "702ac779529417dad4cbba4680cb65ac",
  "ja3_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,13-18-10-27-11-17513-65281-43-51-23-16-0-5-45-35-21,29-23-24,0",
  "ja3n_hash": "aa56c057ad164ec4fdcb7a5a283be9fc",
  "ja3n_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-5-10-11-13-16-18-21-23-27-35-43-45-51-17513-65281,29-23-24,0",
  "akamai_hash": "a345a694846ad9f6c97bcc3c75adbe26",
  "akamai_text": "1:65536;2:0;3:1000;4:6291456;6:262144|15663105|0|m,a,s,p"
}

------------------------------------------------------------

Browser Type: chrome119
URL: https://tls.browserleaks.com/json
TLS Fingerprint:
{
  "user_agent": "curl_cffi",
  "ja3_hash": "ebf4249638b7abef5d64aee80dea548a",
  "ja3_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,35-0-10-5-17513-18-43-23-27-11-45-16-65281-65037-51-13,29-23-24,0",
  "ja3n_hash": "473f0e7c0b6a0f7b049072f4e683068b",
  "ja3n_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-5-10-11-13-16-18-23-27-35-43-45-51-17513-65037-65281,29-23-24,0",
  "akamai_hash": "52d84b11737d980aef856699f885ca86",
  "akamai_text": "1:65536;2:0;4:6291456;6:262144|15663105|0|m,a,s,p"
}

------------------------------------------------------------

Browser Type: chrome120
URL: https://tls.browserleaks.com/json
TLS Fingerprint:
{
  "user_agent": "curl_cffi",
  "ja3_hash": "511ba019d6d8243a5be506d47f4d8d6d",
  "ja3_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,23-65281-45-0-10-16-51-13-65037-17513-5-11-18-35-27-43,29-23-24,0",
  "ja3n_hash": "473f0e7c0b6a0f7b049072f4e683068b",
  "ja3n_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-5-10-11-13-16-18-23-27-35-43-45-51-17513-65037-65281,29-23-24,0",
  "akamai_hash": "52d84b11737d980aef856699f885ca86",
  "akamai_text": "1:65536;2:0;4:6291456;6:262144|15663105|0|m,a,s,p"
}

------------------------------------------------------------

Browser Type: chrome123
URL: https://tls.browserleaks.com/json
TLS Fingerprint:
{
  "user_agent": "curl_cffi",
  "ja3_hash": "0b0cd26232c2792661b4c81bca9981b9",
  "ja3_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,16-18-35-10-65281-13-17513-27-65037-5-51-45-11-23-0-43,29-23-24,0",
  "ja3n_hash": "473f0e7c0b6a0f7b049072f4e683068b",
  "ja3n_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-5-10-11-13-16-18-23-27-35-43-45-51-17513-65037-65281,29-23-24,0",
  "akamai_hash": "52d84b11737d980aef856699f885ca86",
  "akamai_text": "1:65536;2:0;4:6291456;6:262144|15663105|0|m,a,s,p"
}

------------------------------------------------------------

Browser Type: chrome124
URL: https://tls.browserleaks.com/json
TLS Fingerprint:
{
  "user_agent": "curl_cffi",
  "ja3_hash": "14dd565d5c2d50cc55dc350aebd67993",
  "ja3_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-35-27-18-17513-65281-11-45-13-16-23-51-65037-43-5-10,25497-29-23-24,0",
  "ja3n_hash": "4c9ce26028c11d7544da00d3f7e4f45c",
  "ja3n_text": "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-5-10-11-13-16-18-23-27-35-43-45-51-17513-65037-65281,25497-29-23-24,0",
  "akamai_hash": "52d84b11737d980aef856699f885ca86",
  "akamai_text": "1:65536;2:0;4:6291456;6:262144|15663105|0|m,a,s,p"
}

------------------------------------------------------------