On the log analysis - here’s exactly what to look for:
Before robots.txt change:
GPTBot requests: 0
PerplexityBot requests: 0
After robots.txt change (if working):
GPTBot requests: 50-200+ in first week
PerplexityBot requests: 30-100+ in first week
If you’re not seeing AI crawler activity within 48-72 hours of robots.txt change, something’s wrong:
- Check the change is actually live
- Verify no other blocking (meta tags, etc.)
- Ensure technical crawlability (no server errors)
Our data after allowing AI crawlers:
- Day 1-2: First GPTBot visit
- Day 3-7: 150 requests across AI bots
- Week 2: Established crawl pattern (daily visits)
This is your first validation point.