colonist.io
As of Nov 6, 2026, colonist.io's ads.txt lists 1,289 seller lines across 192 ad systems.
Checked daily since Nov 2, 2026. JSON. Link to this check. Run this site? Remove or correct this report.
Checked Nov 6, 2026, 22:11 UTC
| File | Status | What the robot saw | Same since |
|---|---|---|---|
| ads.txt | REMOVED | 1,289 seller lines, 192 ad systems. 9 changes since Nov 6. See the changes | 2026-11-06 |
| app-ads.txt | NOT_FOUND | Not found. The site answered 404. | 2026-11-05, first check |
| sellers.json | NOT_FOUND | Not found. The site answered 404. 299 lines have no matching seller at 33across.com, acrosspf.com, adcolony.com, adiiix.com, and 62 more. Evidence 520 lines not judged: the ad system's sellers.json could not be read. | 2026-11-06, first check |
| robots.txt | Not read yet. The first read is queued. | ||
| llms.txt | Not read yet. The first read is queued. | ||
| DMARC | Not read yet. The first read is queued. | ||
| MTA-STS | Not read yet. The first read is queued. | ||
| BIMI | Not read yet. The first read is queued. | ||
| security.txt | Not read yet. The first read is queued. |
9 changes since Nov 2
ads.txt sellers on Nov 6.
ads.txt sellers on Nov 6.
ads.txt sellers on Nov 6.
See before and after
colonist.io changed its ad sellers on Nov 6. Publisher Watch finds changes like this across 8,118 publishers. One email a day.
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.