practical tips for limiting web tracking
From the California Privacy Protection Agency: Understanding Website Tracking and How to Limit It by Tom Kemp.
A good start, but I understand that a state agency can’t recommend
specific software, and the surveillance business has changed tactics
quite a bit recently. So here are some related links and comments.
Remember, privacy is a cooperative project. Even if you’re not the
intended victim of an attack
using data broker data, anything you can do to protect your info is
going to limit the amount of training
that surveillance AI can
do, which will help keep other people safer.
0. Use the web
The reason that so many privacy tips are about the web is not that
the web is especially bad for privacy, it’s that the web is a medium
where you still have enough control to make a difference. Companies
don’t try to get you to click it’s better in the app
because the
app is better, they want to be able to use a communications medium where
tracking is easier and privacy tools are harder. Please don’t
let the existence of web privacy tools and web privacy tips scare you
away from the web.
Step zero is to remove the Meta apps—Facebook, Instagram, and Whatsapp—if you can. Meta is much safer as a web site than as an app. Researchers recently spotted Meta doing a horribly complex surveillance trick called “Localhost tracking” to bypass security protections on Android phones. Although they stopped doing this particular technique, as long as the Meta apps are on your phone it’s just a matter of time until they figure out the next one.
1. Delete browsing data
This is out of date: If you don’t want personalized ads based on
past website visits, you can delete cookies within your browser and
clear your search and browsing history.
A lot of web tracking now
uses unintended
identification techniques
that are harder to manage than
cookies. Personally I don’t bother to manually delete tracking data.
(update 31 Jul 2025) Firefox now has a feature called Total
Cookie Protection that makes manually dinking with cookies mostly
unnecessary.
2. Customize your privacy settings.
The FTC site linked to here is out of date (as you might expect, given the political situation). I have what should be current info for some of the browsers.
3. Review privacy notices and tracker settings
Reading privacy policies is a waste of time. A company’s privacy
policy is just a list of whatever creepy stuff their lawyer’s other
clients got caught doing. you
gotta FIGHT for your RIGHT to not read privacy policies You
can click the Do not sell or share my personal information
link
at the bottom of a page, but a lot of the time it’s not hooked up to all
of the data processing the company does, or the software that handles it
is broken. (The state
of California is catching some of these but it’s a long process.) A
time-saving approach is Global Privacy Control (see step 6). No more
reliable than manually clicking do not sell
but way more impact
for the time spent.
4. Opt out of audience-matched advertising
This is a good one and can have real impact. (It will even make you buy better stuff and be happier.) Here’s how to fix the Google and Meta personalized ad settings.
5. Consider privacy-centric plug-ins or privacy-focused browsers using an ad blocker
This is a tricky tip to do for a public sector site. The FBI
recommends an ad blocker, too, but it looks like the government
can’t link to a specific tool. The problem is that the ad blocker scene
is a wretched hive of scum and villainy. Many of the ad blockers
you will find by searching the online reviews or browser extension
directories are malware, adware, or have a paid allow-listing scheme.
Installing a random ad blocker would likely make you worse off,
privacy-wise.
A known honest ad blocker is uBlock Origin. It will handle the ads in Google Search, which are the FBI’s concern. If you visit legit ad-supported sites, you can turn it off for just those sites while staying protected from trackers elsewhere.
6. Enable an opt-out preference signal on your browser
Another good tip, currently easier to do on some browsers than others. My Firefox instructions under step 2 already have this one.
Bonus links
Zelle
needs to fix ‘significant scams and fraud,’ lawmakers say by Emma
Roth. In an attempt to protect its customers, Chase began blocking
Zelle payments over social media, where scams often show up, last
February.
(One more reason to delete those Meta apps, if you need
one.)
Nearly
30 % of All Bullsh-t Online Is Health Related by John Battelle.
I’ve been skeptical of the claims made by the tech and AI industry as
LLMs and chatbots begin to take over nearly every aspect of the Internet
as we’ve known it. My conversation with Brill and Crovitz only deepened
my skepticism.
(This problem is only going to get worse as legit
sites do more to try to keep their content out of LLM training sets and
disinfo sites do more to try to get their content in)
One
of the Biggest Obstacles to Building New CA Housing Has Now Vanished
by Ben Christopher. With the passage of a state budget-related
housing bill, the California Environmental Quality Act will be a
non-issue for a decisive swath of urban residential development in
California.
Burner
Phone 101 at the Brooklyn Public Library Burner phones are
low-cost, prepaid devices used to preserve privacy in temporary
situations. They’re not just for activists. More and more people are
using them to avoid surveillance, unplug, and compartmentalize their
lives.
Eroding
America from within: Marketing data threatens military cohesion by
By Maj. Jessica Dawson and Lt. Col. Todd Arnold. The troves of
intricately detailed information collected by online and social media
companies were used to target disinformation campaigns (a.k.a., story
weapons), and yet, much of the broader national defense strategy fails
to acknowledge this actively exploited force protection vulnerability.
There are currently no provisions in law or force structure to actively
assess this vulnerability, nor to defend against it.