Between August 22 and August 25, 2026, block lists saw 5,020 new domains added and a massive 17,017 removed. The biggest activity came from Steven Black Unified Hosts, EasyList, and AdGuard DNS Filter. If you use block lists to measure tracker coverage or maintain allowlists, expect a lot of churn this week.

Bulk Domain Removals: Why Did 17,000 Domains Disappear?

Lists rarely remove domains at this scale. Steven Black Unified Hosts alone dropped 13,343 entries. Most of these were obscure, recently-added domains, such as 1fwjpdwguvqs.com and 1puq9cnwjpgoxicjgu8co28k.rest, which appeared for less than a day before being delisted from AdGuard, EasyList, and others. This pattern suggests a bulk cleanup of low-quality or short-lived domains, likely to reduce false positives and dead entries. For engineers, this means fewer breakages from overblocking and less noise in analytics.

High-Consensus Blocks: faxcoupons.com on Four Lists

faxcoupons.com is now blocked by AdGuard DNS Filter, AdGuard Tracking Protection Filter, EasyPrivacy, and Peter Lowe's list. When a domain lands on four major lists at once, it's a sign of broad agreement—usually due to aggressive tracking or ad-serving. If your stack relies on this domain for anything legitimate, it's time to find an alternative. For marketers, expect any campaigns using this domain to underperform or break in privacy-respecting environments.

The Flood of Random-Looking TLDs Continues

A fresh batch of generated domains like 13juk6f4qujcon697yuxhwy9tbi9pckz7rb.cfd, 47g8quyf3m2izku.cfd, and 4rhr7x4ptgqfl3rnmtoi7zvclbvwe.rest hit three or more lists this period. These domains have no history, no brand, and no legitimate web presence. This is a sign that tracker/ad networks are still using domain generation algorithms to evade blocks. For privacy teams, these domains are low-risk to block. For analytics engineers, if you see traffic leaking to these, it's probably not from legitimate sources.

Short-Lived Add-Remove Cycle: The One-Day Domains

Several domains, like 1fwjpdwguvqs.com and 1x5wn86j67ifmrcyehlemr179t4i42.rest, were added and removed from multiple lists within a single day. This indicates automation in both blocklist additions and cleanups. For developers, this means that relying on daily diffs for blocklist-based detection will produce a lot of false positives if you don't filter out domains with very short lifespans.

Numbers this period

Next digest: August 28, 2026. For live lookups, see isblocked.fyi.