Weekly report · 2008-W42
The state of AI crawling
Measured on 30,178 reachable domains for the week ending 2008-10-19. 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% | 2,148 of 30,176 | new |
| CCBot | Common Crawl Foundation | archive | 6.9% | 2,069 of 30,176 | new |
| Bytespider | ByteDance | training | 6.5% | 1,952 of 30,176 | new |
| ClaudeBot | Anthropic | training | 5.8% | 1,746 of 30,176 | new |
| Meta-ExternalAgent | Meta | training | 4.7% | 1,428 of 30,176 | new |
| Amazonbot | Amazon | training | 4.7% | 1,413 of 30,176 | new |
| Google-Extended | training | 4.6% | 1,393 of 30,176 | new | |
| Applebot-Extended | Apple | training | 4.6% | 1,380 of 30,176 | new |
| anthropic-ai | Anthropic | training | 4.4% | 1,322 of 30,176 | new |
| omgilibot | Webz.io | training | 4.3% | 1,289 of 30,176 | new |
| cohere-ai | Cohere | live retrieval | 4.1% | 1,223 of 30,176 | new |
| Diffbot | Diffbot | training | 4.0% | 1,222 of 30,176 | new |
| omgili | Webz.io | training | 3.9% | 1,171 of 30,176 | new |
| SemrushBot-OCOB | Semrush | training | 3.7% | 1,124 of 30,176 | new |
| ChatGPT-User | OpenAI | live retrieval | 3.5% | 1,052 of 30,176 | new |
| PerplexityBot | Perplexity | answer index | 3.5% | 1,052 of 30,176 | new |
| FacebookBot | Meta | training | 3.3% | 981 of 30,176 | new |
| YouBot | You.com | answer index | 2.9% | 888 of 30,176 | new |
| ImagesiftBot | ImageSift (Hive) | training | 2.8% | 852 of 30,176 | new |
| Timpibot | Timpi | training | 2.8% | 830 of 30,176 | new |
| Scrapy | Zyte (open-source framework) | training | 2.5% | 745 of 30,176 | new |
| AI2Bot | Allen Institute for AI | training | 2.3% | 701 of 30,176 | new |
| OAI-SearchBot | OpenAI | answer index | 2.1% | 646 of 30,176 | new |
| cohere-training-data-crawler | Cohere | training | 2.0% | 616 of 30,176 | new |
| Meta-ExternalFetcher | Meta | live retrieval | 1.8% | 557 of 30,176 | new |
| DuckAssistBot | DuckDuckGo | live retrieval | 1.7% | 516 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% | 478 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% | 421 of 30,176 | new | |
| GoogleOther | training | 1.3% | 383 of 30,176 | new | |
| Meta-WebIndexer | Meta | answer index | 1.2% | 357 of 30,176 | new |
| Applebot | Apple | answer index | 1.1% | 340 of 30,176 | new |
| TikTokSpider | ByteDance | live retrieval | 0.8% | 254 of 30,176 | new |
| Amzn-SearchBot | Amazon | answer index | 0.8% | 228 of 30,176 | new |
| Amzn-User | Amazon | live retrieval | 0.5% | 161 of 30,176 | new |
| MistralAI-Training | Mistral AI | training | 0.5% | 140 of 30,176 | new |
| MistralAI-Index | Mistral AI | answer index | 0.2% | 75 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-W42", 2008-10-19. https://crawlcensus.com/report/2008-W42Machine-readable: census totals, full corpus, crawler registry. Method: methodology.