Between September 4 and September 7, 2026, blocklists saw 6,848 new domains added and 2,604 removed. Steven Black's Unified Hosts and AdGuard DNS Filter led the charge on both additions and removals. EasyList, meanwhile, added nearly a thousand new domains without a single removal.
app.partnerboost.com: Fast In, Fast Out
app.partnerboost.com was added to both AdGuard DNS Filter and EasyPrivacy on September 5 and then removed from both just days later. This kind of rapid removal usually means a false positive, either from a misclassification or an overzealous regex. If your attribution, onboarding, or affiliate dashboards stopped working this week, this could be the culprit. Marketers and devs: check your logs for lost API calls or broken integrations tied to this domain.
inventorycache.com: A Tracking Removal Double-Play
inventorycache.com was removed simultaneously from AdGuard Tracking Protection Filter and EasyPrivacy. This is rare. When two privacy-focused lists pivot together, it usually means a domain got delisted after someone flagged it as a non-tracker or a critical business service. If your analytics or ad delivery suddenly recovered, now you know why. Consider whitelisting in your monitoring—this one might bounce again.
Peter Lowe's List: The September 5th Mass Delisting
Peter Lowe's Ad and Tracking Server List removed eleven domains added only two days prior, including adserv.snigelweb.com, ads.schmoozecom.net, clickngo.pro, and pixel.keywee.co. This kind of rollback usually signals either a manual audit or external pressure (complaints, bug reports, devs with pitchforks). If your ad delivery or reporting tools stopped being blocked on September 7, you were likely caught in the crossfire.
AdGuard DNS Filter: Bulk Cleaning
AdGuard DNS Filter removed over 2,500 domains, but only a handful were recognizable names. Examples include a.omeotex.com, imri-jewelry.co.il, and live.cryptovot.com. If you run infrastructure on less-known domains and saw a sudden drop in DNS-level blocks, it’s worth checking if you were quietly swept out with the trash.
Numbers this period
| List | Added | Removed |
|---|---|---|
| Steven Black Unified Hosts (ads + malware) | 3,925 | 2,553 |
| AdGuard DNS Filter (ads) | 982 | 5 |
| AdGuard Base Filter (ads) | 961 | 0 |
| EasyList (ads) | 936 | 0 |
| Online Malicious URL Blocklist (malware) | 11 | 35 |
| AdGuard Tracking Protection Filter (tracking) | 13 | 1 |
| EasyPrivacy (tracking) | 11 | 2 |
| Peter Lowe's Ad and Tracking Server List | 2 | 8 |
| Dan Pollock's Hosts File (ads) | 3 | 0 |
| uBlock Filters – Badware Risks (malware) | 1 | 0 |
| AdGuard Mobile Ads Filter (mobile) | 1 | 0 |
| Fanboy's Annoyance List (annoyances) | 1 | 0 |
Next digest drops September 10, 2026. For live lookups, hit isblocked.fyi.