Weekly report · 2009-W37
The state of AI crawling
Measured on 30,169 reachable domains for the week ending 2009-09-13. Every figure is the result of an automated audit run the same way on every domain: read robots.txt, resolve the rules for 48 tracked agents, then send live requests as four of them.
30,169
domains measured
7%
block an answer engine
19%
refuse AI agents at the edge
14%
publish an llms.txt
Block rate by crawler with change on the previous week
| Crawler | Operator | Content used for | Block rate | Sites | Week on week |
|---|---|---|---|---|---|
| GPTBot | OpenAI | training | 7.1% | 2,134 of 30,169 | new |
| CCBot | Common Crawl Foundation | archive | 6.8% | 2,062 of 30,169 | new |
| Bytespider | ByteDance | training | 6.4% | 1,941 of 30,169 | new |
| ClaudeBot | Anthropic | training | 5.8% | 1,740 of 30,169 | new |
| Meta-ExternalAgent | Meta | training | 4.7% | 1,417 of 30,169 | new |
| Amazonbot | Amazon | training | 4.6% | 1,402 of 30,169 | new |
| Google-Extended | training | 4.6% | 1,383 of 30,169 | new | |
| Applebot-Extended | Apple | training | 4.5% | 1,369 of 30,169 | new |
| anthropic-ai | Anthropic | training | 4.4% | 1,313 of 30,169 | new |
| omgilibot | Webz.io | training | 4.2% | 1,280 of 30,169 | new |
| cohere-ai | Cohere | live retrieval | 4.0% | 1,219 of 30,169 | new |
| Diffbot | Diffbot | training | 4.0% | 1,212 of 30,169 | new |
| omgili | Webz.io | training | 3.9% | 1,165 of 30,169 | new |
| SemrushBot-OCOB | Semrush | training | 3.7% | 1,119 of 30,169 | new |
| ChatGPT-User | OpenAI | live retrieval | 3.5% | 1,048 of 30,169 | new |
| PerplexityBot | Perplexity | answer index | 3.5% | 1,048 of 30,169 | new |
| FacebookBot | Meta | training | 3.2% | 971 of 30,169 | new |
| YouBot | You.com | answer index | 2.9% | 886 of 30,169 | new |
| ImagesiftBot | ImageSift (Hive) | training | 2.8% | 849 of 30,169 | new |
| Timpibot | Timpi | training | 2.7% | 826 of 30,169 | new |
| Scrapy | Zyte (open-source framework) | training | 2.5% | 744 of 30,169 | new |
| AI2Bot | Allen Institute for AI | training | 2.3% | 696 of 30,169 | new |
| OAI-SearchBot | OpenAI | answer index | 2.1% | 641 of 30,169 | new |
| cohere-training-data-crawler | Cohere | training | 2.0% | 612 of 30,169 | new |
| Meta-ExternalFetcher | Meta | live retrieval | 1.8% | 553 of 30,169 | new |
| DuckAssistBot | DuckDuckGo | live retrieval | 1.7% | 512 of 30,169 | new |
| PanguBot | Huawei | training | 1.7% | 511 of 30,169 | new |
| Claude-User | Anthropic | live retrieval | 1.6% | 489 of 30,169 | new |
| Claude-SearchBot | Anthropic | answer index | 1.6% | 471 of 30,169 | new |
| Kangaroo Bot | Kangaroo LLM | training | 1.5% | 461 of 30,169 | new |
| Perplexity-User | Perplexity | live retrieval | 1.5% | 460 of 30,169 | new |
| MistralAI-User | Mistral AI | live retrieval | 1.5% | 439 of 30,169 | new |
| Google-CloudVertexBot | live retrieval | 1.4% | 416 of 30,169 | new | |
| GoogleOther | training | 1.2% | 376 of 30,169 | new | |
| Meta-WebIndexer | Meta | answer index | 1.2% | 357 of 30,169 | new |
| Applebot | Apple | answer index | 1.1% | 337 of 30,169 | new |
| TikTokSpider | ByteDance | live retrieval | 0.8% | 251 of 30,169 | new |
| Amzn-SearchBot | Amazon | answer index | 0.7% | 226 of 30,169 | new |
| Amzn-User | Amazon | live retrieval | 0.5% | 160 of 30,169 | new |
| MistralAI-Training | Mistral AI | training | 0.4% | 135 of 30,169 | new |
| MistralAI-Index | Mistral AI | answer index | 0.2% | 75 of 30,169 | new |
| facebookexternalhit | Meta | live retrieval | 0.2% | 52 of 30,169 | new |
| Bingbot | Microsoft | answer index | 0.1% | 40 of 30,169 | new |
| Googlebot-News | answer index | 0.1% | 37 of 30,169 | new | |
| Meta-ExternalAds | Meta | training | 0.1% | 22 of 30,169 | new |
| msnbot | Microsoft | answer index | 0.1% | 21 of 30,169 | new |
| Googlebot | answer index | 0.1% | 18 of 30,169 | new | |
| OAI-AdsBot | OpenAI | live retrieval | 0.0% | 10 of 30,169 | new |
Trend share of measured sites
Where the blocking is share blocking an answer engine, by top-level domain
Only TLDs with at least 40 measured domains are shown, and each bar carries its sample size. A TLD is a weak proxy for jurisdiction. Full segmentation.
Changes recorded this week 0 total
No crawler policy changes were recorded in this week.
Cite this CC BY 4.0
The figures on this page are frozen to the week shown and will not be edited after publication. Corrections are appended, not overwritten.
Crawl Census, "The state of AI crawling, 2009-W37", 2009-09-13. https://crawlcensus.com/report/2009-W37Machine-readable: census totals, full corpus, crawler registry. Method: methodology.