25.13%
Denominator: 991 conclusive domains. Coverage: 99.10% of the panel.
Provenance
This is why this page exists: the exact run that produced this figure, frozen alongside it rather than left to be inferred later.
| Vintage | 1 |
|---|---|
| Methodology | agents=2;protego=0.6.2 |
| Collector | 19577d5+1a3aaa0+ccc4b49 |
| Computed at |
Every series value for this period
| Series | Value |
|---|---|
| Effective (named or blanket) | 28.15% |
| Blanket disallow (closed to every crawler) | 5.85% |
| Coverage | 99.10% |
| Unreadable robots.txt | 0.40% |
| Change (week over week) | 0.10% |
| AI2Bot | 5.95% |
| AI2Bot-Dolma | 4.74% |
| Amazonbot | 10.39% |
| Applebot-Extended | 11.50% |
| Brightbot | 3.63% |
| Bytespider | 15.24% |
| CCBot | 16.95% |
| ChatGLM-Spider | 3.13% |
| ChatGPT-User | 11.40% |
| Claude-SearchBot | 9.18% |
| Claude-User | 8.58% |
| Claude-Web | 8.78% |
| ClaudeBot | 15.74% |
| DeepSeekBot | 4.34% |
| Devin | 2.62% |
| Diffbot | 10.29% |
| DuckAssistBot | 7.16% |
| GPTBot | 17.15% |
| Gemini-Deep-Research | 3.23% |
| Google-CloudVertexBot | 5.65% |
| Google-Extended | 14.83% |
| Google-NotebookLM | 2.83% |
| GoogleAgent-Mariner | 2.32% |
| ImagesiftBot | 6.96% |
| MistralAI-User | 5.45% |
| OAI-SearchBot | 10.60% |
| PanguBot | 5.25% |
| Perplexity-User | 7.87% |
| PerplexityBot | 14.53% |
| PhindBot | 2.52% |
| SBIntuitionsBot | 2.93% |
| TavilyBot | 2.42% |
| Timpibot | 7.77% |
| WrtnBot | 2.42% |
| YouBot | 8.27% |
| anthropic-ai | 9.89% |
| cohere-ai | 10.39% |
| cohere-training-data-crawler | 5.25% |
| iaskspider | 2.62% |
| meta-externalagent | 12.41% |
| meta-externalfetcher | 6.66% |
| meta-webindexer | 3.73% |
| omgili | 9.99% |
| omgilibot | 8.17% |
| webzio-extended | 5.95% |
Restatements
This period has never been restated: the value above is the only one ever published for it.
Suggested citation
Agent Accessibility Index, 2026-10-26: 25.13% (vintage 1). https://allanderek.github.io/tallyhouse/agent-accessibility/releases/2026-10-26/index.html
The two ledgers below carry this period's rows among every other period's; anything named for this period alone is listed with them.
Downloads
Every figure published on this site can be re-derived from these files. The two ledgers below are served as the exact bytes committed to the repository, not regenerated.
| File | Rows | Size | Description |
|---|---|---|---|
| Headline ledger | 24 | 3.1 KB | Every headline figure ever published, for both indices, including superseded vintages and the reason each was restated. Served as the exact bytes committed to the repository. |
| Series ledger | 1148 | 158.9 KB | Every sub-series: the per-crawler rates, effective and blanket blocking, coverage, the unreadable share and the like-for-like change. Same vintage rules as the headline ledger, same exact bytes. |