bartleby.com
As of Nov 9, 2026, bartleby.com's ads.txt lists 31 seller lines across 17 ad systems and its DMARC policy is none.
Checked daily since Oct 31, 2026. JSON. Link to this check. Run this site? Remove or correct this report.
Checked Nov 9, 2026, 22:04 UTC
| File | Status | What the robot saw | Same since |
|---|---|---|---|
| ads.txt | REVALIDATED | 31 seller lines, 17 ad systems. | 2026-11-03 |
| app-ads.txt | UNAVAILABLE | Server error 503. No good check yet. UNAVAILABLE, NOT AN ABSENCE | |
| sellers.json | UNAVAILABLE | Server error 503. No good check yet. 4 lines have no matching seller at appnexus.com, google.com, and media.net. Evidence 13 lines not judged: the ad system's sellers.json could not be read. UNAVAILABLE, NOT AN ABSENCE | |
| robots.txt | SUCCESS | Read. No rule names an AI crawler. | 2026-11-06, first check |
| llms.txt | UNAVAILABLE | Server error 503. No good check yet. UNAVAILABLE, NOT AN ABSENCE | |
| DMARC | SUCCESS | p=none. Reports on. | 2026-11-06, first check |
| MTA-STS | NOT_FOUND | No MTA-STS record. | 2026-11-06, first check |
| BIMI | NOT_FOUND | No BIMI record. | 2026-11-06, first check |
| security.txt | NOT_FOUND | Not found. The site answered 404. | 2026-11-06, first check |
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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
| primis.tech | ADDED | New sellers.json seller: 33608 | 00:19 UTC |
| mashable.com | ADDED | New ads.txt seller: yahoo.com | 00:19 UTC |
| ojogodobicho.com | REMOVED | Dropped ads.txt seller: nativo.com | 00:19 UTC |
| ojogodobicho.com | MODIFIED | ads.txt seller for pubmatic.com | 00:19 UTC |