Microsoft: 3 rows
In short
Microsoft has 3 rows in the Index: Bingbot, MicrosoftPreview and Browse with Copilot. They cover 3 purposes: search index, other, task agent. 2 of them have a robots.txt token and 1 publish nothing a site can verify. The most refused is MicrosoftPreview, disallowed at the root by 4.0 percent of top-10,000 sites.
| Operator | Token | Block rate |
|---|---|---|
| Microsoft | bingbot | 3.1% |
| Microsoft | MicrosoftPreview | 4.0% |
| Microsoft | Browse with Copilot (formerly Copilot Actions) |
Vendor profile: Microsoft, with its products, standards, our probes and what it does not do.
Verification Ledger entry
- Summary
- bingbot.json (creationTime 2024-01-03) and a verification tool; nothing for Browse with Copilot.
- IP lists
- Reverse DNS
- Verify Bingbot tool and documented methods
- Key directory
- not published
- Cloudflare
- not checked
- Visa and Mastercard
- Visa TAP: no public operator-level registration found (checked 2026-11-04). Mastercard Agent Pay: no public operator-level registration found (checked 2026-11-04).
Block rates for Microsoft tokens
| Token | Refused, top 10,000 | Named | Via * | All crawled |
|---|---|---|---|---|
| MicrosoftPreview | 4.0% | 0.0% | 3.9% | 2.9% |
| Bingbot | 3.1% | 0.4% | 2.7% | 2.2% |
Based on 5,938 top-10,000 sites with a parsed robots.txt; crawl of 2026-11-04.
In the news
Sources
Last reviewed 2026-11-04