Links
Tools, tests, apps and fixes I keep coming back to.
Privacy checks
Run these with your VPN, DNS filter or ad blocker turned on to make sure it's doing its job.
IP and DNS leaks
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DNS Leak Test
dnsleaktest.com
Shows which DNS servers answer your lookups, so you can spot a VPN or DNS leak.
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BrowserLeaks: IP address
browserleaks.com
Your public IP address, location and internet provider, plus WebRTC and DNS leak tests.
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Psylo Leak Checker
leaks.psylo.app
Checks whether your browser leaks your real IP address or DNS servers. Made by Mysk, the team behind the Psylo browser.
NextDNS
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NextDNS test
test.nextdns.io
Shows whether this device is using NextDNS, over which protocol and with which profile.
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NextDNS ping
ping.nextdns.io
Measures how fast the NextDNS servers near you respond.
Tracking and fingerprinting
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Cover Your Tracks
coveryourtracks.eff.org
The EFF's test of how well your browser blocks trackers and resists fingerprinting.
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Am I Unique?
amiunique.org
Shows how unique, and how easy to track, your browser's fingerprint is. A university research project.
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PrivacyTests.org: iPhone browsers
privacytests.org
Side-by-side privacy test results for iPhone browsers, rerun as new versions come out.
Ad blocking
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AdBlock Tester
adblock-tester.com
Checks how many ads, trackers and analytics scripts your blocker stops.
Connection quality
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Bufferbloat Test
waveform.com
A speed test that also measures how much lag builds up when your connection is busy.
Privacy tools & guides
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Privacy Guides
privacyguides.org
Nonprofit, open-source recommendations for private apps and services, with how-to guides.
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PRISM Break
prism-break.org
A directory of open-source alternatives to big-tech apps and services, sorted by platform.
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OptOutPrescreen
optoutprescreen.com
The credit bureaus' official site for opting out of prescreened credit and insurance offers in the mail, for five years or for good.
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NoFaceScan
nofacescan.app
Shows a 3D face model in your browser that you can use for face scans in apps and websites.
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This Person Does Not Exist
thispersondoesnotexist.com
Shows a new AI-made face of someone who doesn't exist every time you load it.
Apps & extensions
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FineTune
github.com
A menu bar app for per-app volume, audio routing and a 10-band EQ. Needs macOS 15 or later.
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StopTheMadness
underpassapp.com
Stops websites from blocking copy and paste, autoplaying videos and adding tracking to links. On the Mac it also works in Chrome and Firefox.
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Auto Tab Groups
github.com
Groups your tabs by website automatically, with your own rules on top.
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YouTube Watch Later Cleaner
chromewebstore.google.com
Filters and bulk-deletes videos in your YouTube Watch Later playlist.
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Soundiiz
soundiiz.com
Moves playlists and favorites between music streaming services.
Fixes
Forum posts and manuals that solved a problem for me. A saved copy is a snapshot of the original post, like a cached page, in case the original disappears.
Safari tabs that keep coming back
Tabs you closed keep reappearing from another device through iCloud Tabs, often called ghost or zombie tabs.
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How to delete zombie Safari open tabs in iCloud synchronization?
Ask Different (Apple Stack Exchange)
Sign out of iCloud and back in on the device the zombie tabs come from. A commenter found new ones can show up again later.
By JoaoAlby, 2021 · CC BY-SA 4.0 · Saved copy (PDF), Oct 14, 2026
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iCloud tabs not syncing (page 46)
MacRumors Forums
Two fixes from this page: set the device's date a few weeks ahead so Safari drops the stale tabs, or turn off Safari in iCloud, move the CloudTabs files out of the Safari folder in your Library, then turn it back on.
Thread by Morac; fixes by iStorm and unkno, 2021 · Saved copy (PDF), Oct 14, 2026
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I finally found the solution to Safari ghost tabs (Ventura)
Reddit, r/MacOS
Delete Safari's three CloudTabs files on the Mac to reset iCloud Tabs. Commenters add a Handoff off-and-on fix for macOS Sequoia.
By u/watch_abc, 2023 · Saved copy (PDF), Oct 14, 2026
Photos: reset face recognition
Clear the face data behind the People album so Photos can start over.
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How can I reset the faces database in Apple Photos
Apple Community
Select everything in the People album and press Delete. Instead of deleting photos, Photos offers to reset all names and face data.
Asked by Macgaspode, answered by amozarte, 2017 · Saved copy (PDF), Oct 14, 2026
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Is it possible to reset the faces database in Apple Photos?
Reddit, r/applehelp
The same reset on the Mac (select all in People, then Command-Delete), with tips to back up first and rebuild the library afterward.
Asked by u/azz3879, answered by u/Environmental_Door15, 2023 · Saved copy (PDF), Oct 14, 2026
Finder: no Skip button when copying
Finder's prompt for files that already exist sometimes offers Skip and sometimes Keep Both.
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Why are these randomly different? Sometimes skip isn't an option…
Reddit, r/applehelp
When Finder asks about files that already exist, hold the Option key to turn Keep Both into Skip.
Asked by u/pex2006, answered by a deleted account, 2023 · Saved copy (PDF), Oct 14, 2026
Mullvad VPN
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[Guide] NextDNS + Mullvad (WireGuard) + DoH3 on iOS / iPadOS / macOS
Reddit, r/mullvadvpn
Edit a NextDNS configuration profile to use DoH3, then set up Mullvad's WireGuard tunnel so NextDNS keeps filtering while the VPN is on.
By u/DN9TP3, 2022 · Saved copy (PDF), Oct 14, 2026
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The same guide on the NextDNS Help Center
help.nextdns.io
The author's earlier post of the guide, kept on NextDNS's own site.
By DN9TP3, 2022
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PSA: You can run two Mullvad WireGuard tunnels on one machine and double your speed
Reddit, r/mullvadvpn
Run two Mullvad WireGuard tunnels on one computer and spread connections across both with ECMP routing for about twice the speed. A commenter warns it can make you easier to identify.
By u/on121212, 2026 · Saved copy (PDF), Oct 14, 2026
FreeFileSync: run syncs on a schedule
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Schedule batch jobs
FreeFileSync manual
Save a sync as a batch job and run it on a schedule with Task Scheduler on Windows, Automator and Calendar on a Mac, or cron on Mac and Linux.
Hardware & deals
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Disk Prices
diskprices.com
Hard drives, SSDs and other storage sorted by price per terabyte, from Amazon US listings.
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SSD Tester
ssd-tester.com
Speed tests and benchmark rankings for SSDs and USB flash drives.
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RAID Performance Calculator
bradgarrison.github.io
Compares speed, usable space and redundancy across RAID levels for your number of drives.
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PQS: charger test results
pqs.app
Power Quality Score ratings for USB chargers, based on efficiency, power factor and distortion.
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r/buildapcsales
reddit.com
Community-posted deals on PC parts, storage and accessories.
Lookups
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NHTSA recall lookup
nhtsa.gov
Check a vehicle for open recalls by VIN or license plate, plus car seats, tires and equipment.
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Recall email alerts
recalls.gov
Sign up for recall emails from the CPSC, FDA, USDA and NHTSA.
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Instant Username Search
instantusername.com
Checks whether a username is free on more than 100 sites as you type.
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YouTube Channel ID Finder
ytlarge.com
Finds the channel ID behind any YouTube channel.
Food & skincare
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Effects of cooking on vitamins
beyondveg.com
A table of how heat, water, air, light and acidity affect each vitamin, from Beyond Vegetarianism's raw vs. cooked series.
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Skinsort
skinsort.com
A skincare ingredient checker, product database and routine builder.
None of these are referral links, and nobody pays me to list them. Links checked October 2026.