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What you can do to resist Cloudflare?

Matthew Prince (@eastdakota)

"I’d suggest this was armchair analysis by kids – it’s hard to take seriously." t

"That was simply unfounded paranoia, pretty big difference." t

"We also work with Interpol and other non-US entities" t

"Watching hacker skids on Github squabble about trying to bypass Cloudflare's new anti-bot systems continues to be my daily amusement. 🍿" t

_click me_

Website consumer
  • If the website you like is using Cloudflare, tell them not to use Cloudflare.
    • Whining on social media such as Facebook, Reddit, Twitter or Mastodon makes no difference. Actions are louder than hashtags.
    • Try to contact to the website owner if you want to make yourself useful.

Cloudflare said:

We recommend that you reach out to the administrators for the
specific services or sites that you run into issue with and share your experience.

If you don't ask for it, website owner never know this problem.

Successful example.
You have a problem? Raise your voice now. Example below.

You are just helping corporate censorship and mass surveillance.
https://codeberg.org/crimeflare/cloudflare-tor/src/branch/master/README.md

Your web page is in the privacy-abusing private walled-garden of CloudFlare.
See https://codeberg.org/crimeflare/cloudflare-tor/
  • Take some time to read website's privacy policy.
    • ...if the website is behind Cloudflare or website is using services connected to Cloudflare.

It must explain what the "Cloudflare" is, and ask for permission to share your(user) data with Cloudflare. Failure to do so will result in the breach of trust and the website in question should be avoided.

An acceptable privacy policy example is here (look at "Subprocessors" > "Entity Name")

I've read your privacy policy and I cannot find the word "Cloudflare".
I refuse to share data with you if you continue to feed my data to Cloudflare.
See https://codeberg.org/crimeflare/cloudflare-tor/

For example, Liberland Jobs privacy policy says:

... is not going to happen. Cloudflare have their own "privacy policy", and there's no way to hear customer's privacy policy needs. Cloudflare loves doxxing people.

Here's a good example for website's signup form. AFAIK, zero website do this. Will you trust them?

By clicking “Sign up for XYZ”, you agree to our terms of service and privacy statement.
You also agree to share your data with Cloudflare and also agrees to cloudflare's privacy statement.
If Cloudflare leak your information or won't let you to connect to our servers, it's not our fault. [*]

[ Sign up for XYZ ] [ I disagree ]

[*] People's voice

_click me_

Add-ons
  • If your browser is Firefox, Tor Browser, or Ungoogled Chromium use one of these add-ons below.
    • If you want to add other new add-on ask about it here first.
Name Developer Support Can Block Can Notify support Chrome
Bloku Cloudflaron MITM-Atakon Crimeflare #Addon Link, Link Yes Yes Yes
Ĉu ligoj estas vundeblaj al MITM-atako? Crimeflare #Addon Link, Link No Yes Yes
Ĉu ĉi tiuj ligoj blokos Tor-uzanton? Crimeflare #Addon Link, Link No Yes Yes
Block Cloudflare MITM Attack
DELETED BY TOR PROJECT		 nullius Link, Link Yes Yes No
TPRB Sw Link Yes Yes No
Detect Cloudflare Frank Otto Link No Yes No
True Sight claustromaniac Link No Yes No
Which Cloudflare datacenter am I visiting? 依云 Link No Yes No
_click me_

Website owner / Web developer

  • Want more customers? You know what to do. Hint is "above line".

  • Using Cloudflare to proxy your "API service", "Client(software) update server" or "RSS feed" will harm your customer. A customer called you and said "I can't use your API anymore", and you have no idea what is going on. Cloudflare can silently block your customer. Do you think it is okay?
    • There are many RSS reader client and RSS reader online service. Why are you publishing RSS feed if you're not allowing people to subscribe?

IP list is from "Cloudflare’s current IP ranges".

Method A: Just block them

server {
...
deny 173.245.48.0/20;
deny 103.21.244.0/22;
deny 103.22.200.0/22;
deny 103.31.4.0/22;
deny 141.101.64.0/18;
deny 108.162.192.0/18;
deny 190.93.240.0/20;
deny 188.114.96.0/20;
deny 197.234.240.0/22;
deny 198.41.128.0/17;
deny 162.158.0.0/15;
deny 104.16.0.0/12;
deny 172.64.0.0/13;
deny 131.0.72.0/22;
deny 2400:cb00::/32;
deny 2606:4700::/32;
deny 2803:f800::/32;
deny 2405:b500::/32;
deny 2405:8100::/32;
deny 2a06:98c0::/29;
deny 2c0f:f248::/32;
...
}

Method B: Redirect to warning page

http {
...
geo $iscf {
default 0;
173.245.48.0/20 1;
103.21.244.0/22 1;
103.22.200.0/22 1;
103.31.4.0/22 1;
141.101.64.0/18 1;
108.162.192.0/18 1;
190.93.240.0/20 1;
188.114.96.0/20 1;
197.234.240.0/22 1;
198.41.128.0/17 1;
162.158.0.0/15 1;
104.16.0.0/12 1;
172.64.0.0/13 1;
131.0.72.0/22 1;
2400:cb00::/32 1;
2606:4700::/32 1;
2803:f800::/32 1;
2405:b500::/32 1;
2405:8100::/32 1;
2a06:98c0::/29 1;
2c0f:f248::/32 1;
}
...
}

server {
...
if ($iscf) {rewrite ^ https://example.com/cfwsorry.php;}
...
}

<?php
header('HTTP/1.1 406 Not Acceptable');
echo <<<CLOUDFLARED
Thank you for visiting ourwebsite.com!<br />
We are sorry, but we can't serve you because your connection is being intercepted by Cloudflare.<br />
Please read https://codeberg.org/crimeflare/cloudflare-tor for more information.<br />
CLOUDFLARED;
die();

  • Set up Tor Onion Service or I2P insite if you believe in freedom and welcome anonymous users.

    • Tor developers will thank you.
    • Tor users will endorse your service! Pro-privacy!

  • Ask for advice from other Clearnet/Tor dual website operators and make anonymous friends! :)

_click me_

Software user

  • Discord is using CloudFlare. Alternatives? We recommend Briar (Android), Ricochet (PC), or Tox over Tor Socks (Android/PC).

    • Briar includes Tor daemon so you don't have to install Orbot.
    • Qwtch developers, Open Privacy (Canada), deleted cloudflare-tor project from their git service without notice.

  • If you use Debian GNU/Linux, or any derivative, subscribe to bug #831835. And if you can, help verify the patch, and help the maintainer come to the right conclusion on whether it should be accepted.

  • Always recommend these browsers.

Name Developer Support Comment
Ungoogled-Chromium Eloston Link PC (Win, Mac, Linux) Not Tor
Bromite Bromite Link Android Not Tor
Tor Browser Tor Project Link PC (Win, Mac, Linux) Tor
Tor Browser Android Tor Project Link Android Tor
Onion Browser Mike Tigas Link Apple iOS Tor

Other software's privacy is imperfect. This doesn't mean Tor browser is "perfect". There is no 100% secure nor 100% private on the internet and technology.

How?

  1. Download Tor Browser and launch it.
  2. Open Add-ons Manager (about:addons) and disable EVERYTHING but "Torbutton". Do NOT remove them.
  3. Open about:config and search "extensions.torbutton.use_nontor_proxy". Set it to "true".
  4. Create new boolean "extensions.torlauncher.start_tor". Set it to "false".
  5. Close Tor Browser.

Other guide is here.

Let's talk about other software's privacy...

Therefore we recommend above table only. Nothing else.

_click me_

"Mozilla Firefox" user

  • Don't use Firefox Nightly. It will send debug-level information to Mozilla servers without opt-out method. Mozilla servers are behing Cloudflare.

  • It is possible to prohibit Firefox to connect to Mozilla servers. Create a file "/distribution/policies.json". Mozilla's policy-templates guide. Keep in mind this trick might stop working in later version because Mozilla likes to whitelist themselves. Use firewall and DNS filter to block them completely.

"WebsiteFilter": {
  "Block": [
  "*://*.mozilla.com/*",
  "*://*.mozilla.net/*",
  "*://*.mozilla.org/*",
  "*://webcompat.com/*",
  "*://*.firefox.com/*",
  "*://*.thunderbird.net/*",
  "*://*.cloudflare.com/*"
  ]
},

  • Report a bug on mozilla's tracker, telling them not to use Cloudflare/TRR. There was a bug report on bugzilla. Many people were posted their concern, however the bug was hidden by the admin in 2018.

  • To disable DoH, enter about:config?filter=network.trr in the address bar then set "network.trr.mode" to 5 to completely disable it. The value "5" means "Off by choice".

How?

  1. Download Tor and install it on your computer.
  2. Add this line to "torrc" file. DNSPort description. DNSPort 127.0.0.1:53
  3. Restart Tor.
  4. Set your computer's DNS server to "127.0.0.1".
_click me_

Action

  • Tell others around you about the dangers of Cloudflare. But don't talk with NSA employee; you'll be definitely marked... just kidding!

  • Help improve this repository, both the lists, the arguments against it and the details.

  • Document and make very public where things go wrong with Cloudflare (and similar companies), making sure to mention this repository when you do so ;)

  • Get more people using Tor by default so they can experience the web from the perspective of different parts of the world.

  • Start groups, in social media and meatspace, dedicated to liberating the world from Cloudflare.

  • Where appropriate, link to these groups on this repository - this can be a place for coordinating working together as groups.

  • Start a coop that can provide a meaningful non corporate alternative to Cloudflare.

  • Let us know of any alternatives to help at least provide multiple layered defence against Cloudflare.

  • If you are a Cloudflare customer, set your privacy settings, and wait for them to violate them. Then bring them under anti-spam / privacy violation charges.

  • If you are in the United States of America and the website in question is a bank or an accountant, try to bring legal pressure under the Gramm–Leach–Bliley Act, or the Americans with DIsabilities Act and report back to us how far you get.

  • If the website is a government site, try to bring legal pressure under the 1st Amendment of the US Constitution.

  • If you are EU citizen, contact the website to send your personal information under the General Data Protection Regulation. If they refuse to give you your information, that's a violation of the law.

  • For companies that claim to offer service on their website try reporting them as "false advertising" to consumer protection organizations and BBB. Cloudflare websites are served by Cloudflare servers.

  • The ITU suggest in the US context that Cloudflare is starting to get big enough that antitrust law might be brought down upon them.

  • It's conceivable that the GNU GPL v4 could include a provision against storing source code behind such a service, requiring for all GPLv4 and later programs that at least the source code is accessible via a medium that does not discriminate against tor users (or any other class of users or something?)

There is always hope in resistance.

Resistance is fertile.

Even some of the darker outcomes (unfriendly AI takeover, coopting of the www, NSA MiTMing everything)
comes to be, the very act of resistance trains us to continue to destabilize the
dystopic status quo that results.

Resist!

Someday, you'll know why we wrote this.

Now, what did you do today?