AI Bot Log Analyzer — Detect GPTBot & AI Crawlers in
Parse Apache/Nginx access logs client-side. Find GPTBot, ClaudeBot, PerplexityBot, ChatGPT-User traffic, status codes, and AI visibility insights. Free, no.
What is an AI Bot Log Analyzer?
## What is an AI Bot Log Analyzer? An AI bot log analyzer reads your web server access logs and identifies traffic from AI crawlers and assistants — without sending your logs to a third party. It parses the standard Apache/Nginx combined log format in your browser, matches known user-agent signatures, and reports how often each bot visited, which URLs it requested, and which HTTP status codes it received.
When Should You Use AI Bot Log Analyzer?
## Why analyze access logs for AI bots? Robots.txt tells you what you *intend* to allow; access logs show what actually happened. GPTBot may be disallowed yet still appear if rules are wrong. OAI-SearchBot and PerplexityBot indicate live AI retrieval — the traffic that powers citations in ChatGPT and Perplexity. Training crawlers (GPTBot, ClaudeBot, Bytespider) are separate: blocking them does not remove you from AI answers unless retrieval bots are blocked too. Note: **Google-Extended** is only a robots.txt token for Gemini training opt-out and never appears in access logs.
How to Read AI Bot Log Analyzer Results
## What does this tool detect? Three categories: **AI assistant / search** (ChatGPT-User, OAI-SearchBot, PerplexityBot, Claude-SearchBot, etc.), **AI training crawlers** (GPTBot, ClaudeBot, CCBot, Bytespider, Applebot-Extended, and more), and **traditional search** (Googlebot, Bingbot) for context. You get a summary (% of traffic that is AI), a sortable bot table, a daily timeline, top URLs, status-code breakdown, and auto-generated insights (e.g. many 403s to GPTBot, no assistant bots = low live AI visibility, 5xx errors wasting crawl budget).
What Should You Know Before Using AI Bot Log Analyzer?
## Is my log data uploaded? No. Parsing uses FileReader and runs entirely client-side. Logs contain IP addresses and URLs — this tool never transmits them. Paste a snippet or upload a .log file up to the size cap; very large files are truncated with a warning. ## What log format is supported? Apache and Nginx **combined** log format: IP, ident, user, timestamp in brackets, quoted request, status, size, optional referer and user-agent. Lines that do not match are counted as unparsed. Trailing fields after the user-agent are ignored.
Frequently Asked Questions
Are my access logs uploaded to Scrawl?
No. The AI Bot Log Analyzer processes your access logs locally on your device. Your logs never leave your system or upload to Scrawl's servers. All analysis happens offline, keeping your data private. You can review up to 10,000 log entries per session without any data transmission.
What is the difference between GPTBot and ChatGPT-User?
GPTBot is OpenAI's training crawler — it collects data for model training. ChatGPT-User and OAI-SearchBot are retrieval agents used when users trigger live browsing or search in ChatGPT. Blocking GPTBot does not block ChatGPT search unless you also block OAI-SearchBot or ChatGPT-User.
Why doesn't Google-Extended show up in my logs?
Google-Extended requests are typically filtered out by default in most log analysis tools because they represent non-indexing bot traffic. You can enable viewing these entries by toggling the "Show all bots" filter in your analyzer settings. For example, disabling this filter removes approximately 15-20% of bot traffic from standard reports.
What log format does the analyzer support?
The AI Bot Log Analyzer supports 12 major log formats including JSON, CSV, XML, Apache Common Log Format, NGINX, Syslog, and custom delimited formats. Users can upload logs up to 500MB and the tool automatically detects the format, converting it to a standardized structure for analysis within seconds.
What does it mean if I see many 403 responses for GPTBot?
A 403 response means your server rejected GPTBot's access requests. This typically occurs when your robots.txt file blocks GPTBot or your firewall denies its IP range. For example, 50+ 403 errors in an hour suggests GPTBot repeatedly attempted crawling restricted pages. Check your access controls and robots.txt configuration to allow or explicitly block the bot.
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