What is server log analysis?
Server log analysis means reviewing a website’s server logs to see which crawlers actually requested which pages and what status codes they received. For AI visibility it shows whether GPTBot, ClaudeBot or PerplexityBot visit at all.
Every request to a web server leaves a line: timestamp, requested path, status code, user agent and IP address. From these lines you can tell how often a bot comes, which sections it avoids and whether it receives errors or blocks.
The finding has a limit: the user agent can be set freely. To be sure a request really came from a specific crawler, match the IP address against the provider’s published ranges or use a reverse DNS lookup, as Google describes for its own crawlers.
On many hosting setups logs arrive incomplete, for example because a CDN or web application firewall answers or rejects requests upstream. A blocked request then never appears in the server log, even though the bot tried.
What it means for your website
If you cannot access logs or see the upstream protection, you can reproduce access from outside: fetch the homepage once with the crawler’s user agent and once like a normal browser, then compare the status codes. That does not replace logs, but it exposes a silent block immediately.
Related terms
Sources
Terms help you understand. Whether AI crawlers can reach your site is something you measure.
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