4chan.org

As of Nov 9, 2026, 4chan.org's ads.txt lists 1,595 seller lines across 259 ad systems and its DMARC policy is quarantine.

Checked daily since Oct 31, 2026. JSON. Link to this check. Run this site? Remove or correct this report.

Checked Nov 9, 2026, 22:00 UTC

Public files of 4chan.org
File	Status	What the robot saw	Same since
ads.txt	REVALIDATED	1,595 seller lines, 259 ad systems.	2026-11-03
app-ads.txt	NOT_FOUND	Not found. The site answered 404.	2026-11-03, first check
sellers.json	NOT_FOUND	Not found. The site answered 404. 424 lines have no matching seller at 152media.com, 152media.info, ad.plus, adagio.io, and 86 more. Evidence 593 lines not judged: the ad system's sellers.json could not be read.	2026-11-05, first check
robots.txt	SUCCESS	Read. No rule names an AI crawler.	2026-11-06, first check
llms.txt	NOT_FOUND	Not found. The site answered 404.	2026-11-06, first check
DMARC	SUCCESS	p=quarantine. Reports on.	2026-11-06, first check
MTA-STS	UNAVAILABLE	Name did not resolve. No good check yet. UNAVAILABLE, NOT AN ABSENCE
BIMI	EMPTY	Read. Nothing inside.	2026-11-06, first check
security.txt	RESTRICTED	The site turned the robot away. No good check yet.

Sell to publishers like this one? Publisher Watch tells you when any of 8,118 publishers adds or drops an ad seller. See Publisher Watch

These are the site's own public files, as fetched, with the date. The robot reports what is published. It does not judge compliance, approval, or intent. A failed fetch is a failed fetch, never a missing file.

Not checked: anything behind a login, account settings, or private feeds. Whether crawlers obey robots.txt. Business deals: a file line is not a contract.

Changed today

radio.de	ADDED	New ads.txt seller: rtbhouse.com	00:02 UTC
radio.de	ADDED	New ads.txt seller: pubmatic.com	00:02 UTC
sbsun.com	ADDED	New ads.txt seller: seedtag.com	00:02 UTC
modernfarmer.com	REMOVED	Dropped ads.txt seller: cafemedia.com	00:02 UTC