11,862 new domains added. 7,513 removed. Steven Black Unified Hosts did most of the heavy lifting, but AdGuard DNS Filter and EasyList also stayed busy.

20 Domains In, 20 Domains Out: AdGuard DNS Filter’s Rapid Reversal

AdGuard DNS Filter removed 20 domains this period—most of which had just been added the day before. Examples: 0592.mobi, 0m9mjmrd.top, 1nrlydgrr.com. This pattern usually means one of two things: either the list maintainers flagged a batch by mistake, or someone ran a fast delisting campaign. For developers, this means not all blocklist additions stick. If your analytics stopped working for a day, check if your domain was part of a short-lived block.

The Domain Name Soup: Tracker Automation in Action

Eight new domains landed on three major ad blocklists (AdGuard Base, AdGuard DNS, EasyList) at once: aaglpqhchibmm.site, 86ryo1rfm7r7erxwp4.cfd, 0awdiotf.xyz, and friends. All look like algorithmically generated junk. The consensus blocklisting suggests a new tracker or malvertising network spinning up domains at scale. If you see traffic from these, assume they're disposable and bad news.

EasyList’s Fresh Crop: New Patterns, Same Story

EasyList’s latest additions are a who’s who of suspicious names: abamatachiol.com, abgztrwbtcduz.website, abridgetomfool.cyou. None are household brands. For MarTech and analytics teams, the takeaway is that EasyList’s maintainers are on top of bot-driven domain churn. If your own infrastructure domains ever look like these, expect a short shelf life.

Steven Black’s List Has a Short Memory

Steven Black Unified Hosts added 8,113 domains but also removed 7,028. That’s nearly as many out as in. The back-and-forth shows just how dynamic blocklists have become. Don’t assume being listed (or delisted) is permanent. Engineers should automate checks, especially if your domains are on the edge of ad/analytics territory.

Numbers this period

Next digest drops October 19, 2026. For real-time lookups, visit isblocked.fyi.