I only get 82% :( How much do you get?

These tools aren't a reliable indicator of your protection. See here.
- F, that's the guy who made uBlock... I shouldn't have posted this...
  
  You could make an edit to your original post explaining the limitations of the method
- You are right, I ran the test on Mull + uBlock Origin on a phone running an ad/tracker blocker at OS level, and this tool reported connections that I couldn't find in my logs.
  It however helped me identify appmetrica.yandex.ru which was not blocked.

100% because i have javascript disabled.
- RMS approves
- I have 100 with JavaScript enabled

This test is wrong for sure. It doesn't detect YouTube ads as being blocked despite them never appearing in this browser thanks to ublock origin.
I also highly doubt that any domain from DoubleClick.com would be allowed through ubo.
- Yeah, I have a quite aggressive pihole and a lot of the domains it says aren't blocked are 100% blacklisted in pihole (and testing them gives an error message so they are blocked...)
  Mull (Firefox) + uBlock + PiHole.
- My setup (Firefox+uBlockOrigin) blocks Doubleclick.net. Also, ads.youtube.com is under Social Trackers, maybe it's not the actual ads on youtube, but some tracker? BTW, I have no idea how the internet works, maybe it is wrong...
- YouTube ads are just other YouTube videos that you can watch willingly if you know their ID. The mechanism of serving them might therefore not involve the client connecting to any domains other than www.youtube.com, and it probably doesn't or it would be very easy to block them otherwise.

100% on Safari on iOS with AdGuard and PiHol
- Same but with adguard home and not pihole
- 100% on Safari on iOS with Wipr.

4% is good, right guys?
- Better than 3% for sure.
  
  33% better, actually.

I opened this in Connect's in app browser and got a whopping 4%. Good reminder to change app settings to use your browser instead of whatever their internal browser is

I get 90% on both mobile and PC.
Firefox on PC with UBlock Origin. Fennec on Android with UBlock Origin.
Both are behind an AdGuard DNS but I think UBlock Origin does most of the heavy lifting here.
If I turn off the "cosmetic filter" it goes up to 92% 🤷
Edit:
Adding the following to "My filters" in UBlock Origin brought it up to 97%
@@*$redirect-rule
100% with cosmetic filter disabled
- Thanks for the edit, that fixed mine up to 97% as well.

Seems to be misreporting (Adguard home + ublock origin + FF). With ublock off I get a higher percentage than with it on (93% vs 91%). It's reporting things as not blocked while they are clearly blocked (all requests show blocked in inspector)
- See here for more information. You are correct that the tool is fairly useless.

this test has been known to have problems on Firefox. 90% Firefox+ublock+nextdns, 99% after using the fix they recommend @@*$redirect-rule in your rules.

89% with firefox for android with ublock origin and decentraleyes.

96% on /e/OS with the Mull browser with uBlock and Privacy Badger
92% on /e/ on the tor browser with the same extensions?? that's weird
- I didn't know people actually used /e/os. not meant to be a dig I'd just never seen it in the wild.
  
  Im otherwise just lurking but now you've witnessed two of us on /e/os ;)
  
  Yeah I really like it! What do you use?

100% with iOS Safari, Wipr, and Adguard Home on network level.
- 100% on Safari with just Wipr.
- Wipr is pretty nice.

100% with Cromite's built-in ad blocker + adguard filtering
88% with Mull (default ublock settings)

Before adding "@@$redirect-rule" to uBlock Origin filters:
With uMatrix enabled: 99%, everything except ads-api.twitter.com and ads.youtube.com was blocked.
With uMatrix disabled: 83%, 125/150 blocked.
After adding "@@$redirect-rule" to uBlock Origin filters:
With uMatrix enabled: 100%, 150/150 blocked.
With uMatrix disabled: 85%, 127/150 blocked.
Using Firefox with uBlock Origin, Privacy Badger and some others.

97% on FF Android with ublock origin. Adguard Home is my network DNS as well.

91% with pihole + ublock on Firefox. Time to add some domains to the blacklist
- Yup got the same except adguard instead of pihole. Will add the remaining to a block list also.

Testing at 100% w/Firefox + ABP + AdGuard home DNSBL and upstream DNS blocking. Need to get uMatrix back on here.

Trying a few different browsers I have installed:
Firefox in Strict mode with LocalCDN: 42% (eww)
Brave (stock): 72%
Brave w/ stock uBlock Origin: 78%
100% w/ custom filters enabled
Opera w/ uBlock: 75%
Vivaldi (stock): 55%
LibreWolf w/ uBlock and LocalCDN: 70%

93% with NextDNS and HaGeZi Ultimate.

69% on my network alone. More once I turn ublock origin on :)

I get 100% on both desktop and mobile.
Desktop: Firefox with uBO, Disconnect, Privacy Badger, and Decentraleyes
Mobile: Safari, Firefox Focus, Orion (with uBO and Privacy Badger) + AdGuard and AhaDNS Blitz
All these plus ControlD and AdGuard as DNS + manually added blocklists on my router.

96%
Using mull+ublock for android on GrapheneOS with DoT on Adguard Home.
Interesting, I can't block ads. youtube and ads.twitter but they are added into my blocking lists. Sus.

Firefox (Fennec) on Android. uBlock Origin with every single block list enabled.

87% with Firefox on MIUI. I think I have some custom ublock filters? Not sure because my config was copied from my PC.

- For me it's trackers from Twitter and YouTube that are responsible for the remaining 3 %.
  
  Yep, same here. Got 96 and Twitter and YouTube ads are the culprits

93% on mobile (Firefox + ublock + pihole) 84% on desktop (Firefox + unlock + pihole)

Firefox focus gave me a 93% while fennec gave me a 91%. I run ControlD as a DoH provider that is suposed to block ads, trackers, malware, and big social (X, spybook, instabully, etc). I am also running ublock origin in fennec.
Edit: damn, adding privacy badger took it from 91% to 96%.
Edit 2: ouch
Fennec + privacy badger 39%
Fennec + privacy badger + ublock 87%
Fennec + privacy badger + ublock + Controld DNS 96%

These results are not at all what I expected. Safari + several blockers seems to be best, followed by Brave of all browsers. Firefox and FF focus got the worst rating! I really thought Focus would do a better job. Then again, all cookies get deleted so at least that part won’t matter much.

4% on duck duck go browser. 87% on fennec.

99%
This is with Firefox in strict privacy mode with uBlock, Privacy Possum, Local CDN and CanvasBlocker. I don't think any other of my addons matter for this.
Edit: I also use Mullvad VPN which might block some stuff on the way too.

I got 100%. Using Mull on android (Firefox fork) with Ublock.

I've been using UBlock for years and was surprised that out of the box, AdGuard had a much better score!

91% on Firefox for Android with I lock Origin and pfblockerng on my router.

Got 100% on ios using Orion with Ublock-origin

100% using Orion on macOS, no extensions.
- It's a damn shame that browser only exists on the mac. When it comes to Linux, I'm going for it.
  
  I really like Kagi. If their browser is half as good as their search engine is its going to be fantastic.

Got 92% on Firefox iOS in strict mode, with pfblocker. Tried safari but the test won’t even start.

Wow I only get 62%. Using Vanadium on GrapheneOS over a network with DNS blocking.
- DNS adblock will still not come anywhere close to a browser adblocking extension. They want to add content filters to Vanadium eventually though. But if you care about adblocking, Firefox is really the only way to go, and also doesn't contribute to unhealthy Google monopoly.

96% but it's not accurate. Verified on my DNS logs that the two it claimed weren't blocked, actually resolved to 0.0.0.0 correctly, so I'm actually at 100%

84% on Fennec mobile with AdAway, uBlock Origin, Privacy Possum, Ad Nauseum and DecentralEyes. A lot of sites seem to be wrongly reported though, ad.doubleclick.net for example.

90% with my normal setup, but I highly doubt it's correct because:
literally everything in uMatrix except first-party scripts is blocked
it goes up to 93% when I turn off uBO, yet the page loads way more slowly which makes no sense
The site does say uBO on Firefox has unknown issues, so I'll attribute it to that.

91%, Firefox with ublock and Privacy Badger on a network with pfBlockerNg.

5% on stock chrome for Android. Guess this week is the week I switch to firefox mobile (73% with stock uBlock Origin)

100% with AdBlock and LocalCDN on LibreWolf.

93% with NextDNS on an iPhone.

89% according to the tool, but should be 100%. The tool itself says it can't detect it in some cases. I manually checked the 16 domains it flagged aa unfiltered and neither of them worked.

91% on Chrome mobile behind PiHole. Fairly good for a minimum effort whole network solution.

99% in Firefox with uBlock Origin, Privacy Badger, Decentraleyes and AdGuard Home.
- I got 93% on mobile with the same setup.
  Although I'm not sure if decentraleyes is working

100% with Brave in aggressive mode, and a Pi-Hole behind it.

I have quite a few browsers installed, all with adblock.
surprisingly, vivaldi did the best with 85%

93% with Firefox and privacy badger on Windscribe VPN adblocking enabled. 55% with Windscribe disabled.

93% on my iPad with an ahaDNS profile installed. The only thing that makes it through are Apple’s stuff. All things considered, I’m fine with that.

81% using Firefox on Android with uBlock on a pi-holed network
- What blocklist do you have? I have the default one and am getting 79% with your same setup
  
  Aside from the built-in lists I have AdGuard Mobile, EasyList, EasyPrivacy, Malicious URLs and Peter Lowe's list

93% with Firefox and Ghostery behind Windscribe VPN. I've got a few other addons disabled like Decentraleyes and Ublock, but a combination of those with Ghostery didn't do any higher. Pretty sure I disabled them because Ghostery did everything they did. The stuff let in are to make websites like Youtube and Google usable. It's a tradeoff.