| Machine | Operator | What it's for | Renders JavaScript | Verify by |
|---|---|---|---|---|
| Googlebot | Search index | Yes | Reverse DNS, IP list | |
| Google-InspectionTool | Search Console live tests | Not yet observed | Reverse DNS, IP list | |
| Bingbot | Microsoft | Search index | Yes | Reverse DNS, IP list |
| GPTBot | OpenAI | Training data | Not yet observed | IP list |
| OAI-SearchBot | OpenAI | ChatGPT search index | Not yet observed | IP list |
| ChatGPT-User | OpenAI | Fetches a page when someone asks ChatGPT | Not yet observed | IP list |
| ClaudeBot | Anthropic | Training data | Not yet observed | IP list |
| Claude-SearchBot | Anthropic | Search index for Claude's answers | Not yet observed | IP list |
| Claude-User | Anthropic | Fetches a page when someone asks Claude | Not yet observed | IP list |
| PerplexityBot | Perplexity | Perplexity's search index | Not yet observed | IP list |
| Perplexity-User | Perplexity | Fetches a page when someone asks Perplexity | Not yet observed | IP list |
| Applebot | Apple | Search features across Apple products | May render | Reverse DNS, IP list |
| Amazonbot | Amazon | Improves Amazon's products and services | Not yet observed | IP list |
| DuckDuckBot | DuckDuckGo | Search index | Not yet observed | IP list |
| CCBot | Common Crawl | Open web archive | No | Reverse DNS, IP list |
| LinkedInBot | Link previews | Not yet observed | The operator doesn't say | |
| Slackbot | Slack | Link previews | Not yet observed | No published check |
| facebookexternalhit | Meta | Link previews on Facebook and WhatsApp | Not yet observed | Not yet observed |
Not yet observed means the operator doesn't say and this site hasn't recorded a verified visit yet. Download the table as CSV. Large file test: about 5 MB of padding, no observations.