Weekly report · 2008-W37
The state of AI crawling
Measured on 30,178 reachable domains for the week ending 2008-09-14. 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.
30,178
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% | 2,147 of 30,176 | new |
| CCBot | Common Crawl Foundation | archive | 6.8% | 2,067 of 30,176 | new |
| Bytespider | ByteDance | training | 6.5% | 1,950 of 30,176 | new |
| ClaudeBot | Anthropic | training | 5.8% | 1,745 of 30,176 | new |
| Meta-ExternalAgent | Meta | training | 4.7% | 1,429 of 30,176 | new |
| Amazonbot | Amazon | training | 4.7% | 1,412 of 30,176 | new |
| Google-Extended | training | 4.6% | 1,391 of 30,176 | new | |
| Applebot-Extended | Apple | training | 4.6% | 1,378 of 30,176 | new |
| anthropic-ai | Anthropic | training | 4.4% | 1,320 of 30,176 | new |
| omgilibot | Webz.io | training | 4.3% | 1,288 of 30,176 | new |
| cohere-ai | Cohere | live retrieval | 4.0% | 1,222 of 30,176 | new |
| Diffbot | Diffbot | training | 4.0% | 1,221 of 30,176 | new |
| omgili | Webz.io | training | 3.9% | 1,170 of 30,176 | new |
| SemrushBot-OCOB | Semrush | training | 3.7% | 1,123 of 30,176 | new |
| ChatGPT-User | OpenAI | live retrieval | 3.5% | 1,051 of 30,176 | new |
| PerplexityBot | Perplexity | answer index | 3.5% | 1,050 of 30,176 | new |
| FacebookBot | Meta | training | 3.2% | 980 of 30,176 | new |
| YouBot | You.com | answer index | 2.9% | 887 of 30,176 | new |
| ImagesiftBot | ImageSift (Hive) | training | 2.8% | 851 of 30,176 | new |
| Timpibot | Timpi | training | 2.8% | 830 of 30,176 | new |
| Scrapy | Zyte (open-source framework) | training | 2.5% | 744 of 30,176 | new |
| AI2Bot | Allen Institute for AI | training | 2.3% | 702 of 30,176 | new |
| OAI-SearchBot | OpenAI | answer index | 2.1% | 647 of 30,176 | new |
| cohere-training-data-crawler | Cohere | training | 2.0% | 617 of 30,176 | new |
| Meta-ExternalFetcher | Meta | live retrieval | 1.8% | 557 of 30,176 | new |
| DuckAssistBot | DuckDuckGo | live retrieval | 1.7% | 515 of 30,176 | new |
| PanguBot | Huawei | training | 1.7% | 515 of 30,176 | new |
| Claude-User | Anthropic | live retrieval | 1.6% | 494 of 30,176 | new |
| Claude-SearchBot | Anthropic | answer index | 1.6% | 479 of 30,176 | new |
| Kangaroo Bot | Kangaroo LLM | training | 1.5% | 465 of 30,176 | new |
| Perplexity-User | Perplexity | live retrieval | 1.5% | 465 of 30,176 | new |
| MistralAI-User | Mistral AI | live retrieval | 1.5% | 442 of 30,176 | new |
| Google-CloudVertexBot | live retrieval | 1.4% | 420 of 30,176 | new | |
| GoogleOther | training | 1.3% | 383 of 30,176 | new | |
| Meta-WebIndexer | Meta | answer index | 1.2% | 358 of 30,176 | new |
| Applebot | Apple | answer index | 1.1% | 340 of 30,176 | new |
| TikTokSpider | ByteDance | live retrieval | 0.8% | 253 of 30,176 | new |
| Amzn-SearchBot | Amazon | answer index | 0.8% | 229 of 30,176 | new |
| Amzn-User | Amazon | live retrieval | 0.5% | 163 of 30,176 | new |
| MistralAI-Training | Mistral AI | training | 0.5% | 140 of 30,176 | new |
| MistralAI-Index | Mistral AI | answer index | 0.3% | 76 of 30,176 | new |
| facebookexternalhit | Meta | live retrieval | 0.2% | 53 of 30,176 | new |
| Bingbot | Microsoft | answer index | 0.1% | 40 of 30,176 | new |
| Googlebot-News | answer index | 0.1% | 35 of 30,176 | new | |
| Meta-ExternalAds | Meta | training | 0.1% | 22 of 30,176 | new |
| msnbot | Microsoft | answer index | 0.1% | 21 of 30,176 | new |
| Googlebot | answer index | 0.1% | 16 of 30,176 | new | |
| OAI-AdsBot | OpenAI | live retrieval | 0.0% | 10 of 30,176 | 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, 2008-W37", 2008-09-14. https://crawlcensus.com/report/2008-W37Machine-readable: census totals, full corpus, crawler registry. Method: methodology.