12,102 domains added. 2,704 removed. AdGuard DNS Filter and Tracking Protection Filter did most of the heavy lifting this round. A handful of suspicious domains hit multiple lists at once, but the real story is in what got quietly delisted.
Shareablee "nextgen" Tracker: In and Out in 24 Hours
2yqcaqbfnv.nextgen.shareablee.com was added to both AdGuard DNS Filter and AdGuard Tracking Protection Filter on October 20. By October 21, it disappeared from both. This is not your average typo-filled malvertising domain. Shareablee is a known analytics vendor. "nextgen" suggests a new infrastructure endpoint.
Why does this matter? If you rely on Shareablee for campaign analytics or audience data, you may have seen a brief dip in signal. Blockers are paying close attention to new analytics endpoints. But this removal suggests either a false positive or a quick appeal from Shareablee. Don’t assume a new subdomain will fly under the radar for long.
Notifysrv.com: Five Quick Removals
A cluster of notifysrv.com subdomains—3205513.notifysrv.com, 3598457.notifysrv.com, 3653689.notifysrv.com, 3662557.notifysrv.com—plus one 3618947.notify6.com, were all added to AdGuard Base Filter on October 21, then removed almost immediately.
If you do push notifications or use 3rd-party notification vendors, this should raise an eyebrow. Rapid-fire removals like this usually mean the list maintainers detected a misclassification or got a takedown request. Either way, automation alone won’t keep you off the lists—human review still happens, especially for high-volume notification networks.
PatPat's Affiliate Click Tracker: Briefly Blocked
a8clk.patpat.com landed on both AdGuard DNS Filter and AdGuard Tracking Protection Filter on October 20, then vanished from both the next day. PatPat is a major e-commerce retailer. This subdomain is their affiliate click tracker.
If you run affiliate programs, this is your warning: even established brands can find their conversion tracking endpoints blocked with little notice. The removal suggests either a misfire by list maintainers or some intervention from PatPat. Still, temporary blocks can break attribution and cost revenue. Monitor your affiliate endpoints.
High-Consensus Junk: The .qpon and .cfd Pileup
Several domains were added to three lists at once: ajloscnhbswow.website, alazorreedits.qpon, acoolalangin.qpon, 9869r9ozvocnifb55pe.cfd, and more. All showed up in AdGuard Base Filter, DNS Filter, and EasyList.
For MarTech and analytics teams, the takeaway is simple: these are almost certainly generated, disposable domains in a malvertising or tracker network. The consensus among lists means detection is fast and coordinated. If your own infrastructure ever overlaps in naming patterns, prepare for collateral damage.
Numbers this period
| List Name | Added | Removed |
|---|---|---|
| AdGuard DNS Filter (ads) | 5,186 | 1,011 |
| AdGuard Tracking Protection Filter | 3,995 | 959 |
| AdGuard Base Filter (ads) | 1,276 | 680 |
| EasyList (ads) | 988 | 1 |
| uBlock Filters – Badware Risks (malware) | 579 | 1 |
| Online Malicious URL Blocklist (malware) | 40 | 51 |
| EasyPrivacy (tracking) | 32 | 0 |
| uBlock Filters – General (ads) | 3 | 1 |
| Peter Lowe's Ad and Tracking Server List | 3 | 0 |
Next digest: October 25, 2026. For live checks on any domain, visit isblocked.fyi.