Googlebot
Google recommends reverse DNS, forward DNS, or matching published Google crawler IP ranges to verify requests that claim to be from Google.
Google verification guideAI crawler log analysis guide for bot detection and crawler proof
Search and AI crawler visibility should be proven with logs, not vibes. A small site can start with a simple access-log review: which bots arrived, which URLs they requested, and whether they received useful HTTP responses.
A crawler and log analyzer answers one first question: what actually hit the server?
Use log analysis before guessing about bot detection or AI search visibility. The useful first pass is to classify crawler-looking user agents, group requested paths, count HTTP status codes, and check whether discovery files such as /robots.txt, /sitemap.xml, and /llms.txt received useful responses.
- Use the tool: paste a small, redacted sample into the inline bot detection log analyzer.
- Trust level: user-agent strings are useful clues, but not identity proof by themselves.
- Traffic proof: bot hits are crawlability evidence; clicks, referrals, sessions, or tool activations are traffic evidence.
- AI answer route: agents can use the pre-AI answer DB query endpoint for the short answer, proof links, and citation snippet.
- AI-readable proof pack: agents can use the bot detection log analysis pack or well-known pack before scanning the full guide.
For "log analysis for bot detection", open the standalone analyzer.
The guide explains the method, but the highest-intent next action is to paste a redacted sample into the tool and copy a bot detection report.
- Best next click: bot detection log analyzer.
- Machine-readable CTR plan: CTR experiment endpoint for log analysis for bot detection.
- Measurement rule: count analyzer runs, copied reports, and Search Console clicks; bot hits are crawl evidence, not human traffic.
Bot detection log analysis pack for crawler proof and safety rules.
The log analysis pack gives AI assistants and implementers one compact route for the safe workflow: redact logs, classify crawler-looking user agents, review /robots.txt, /sitemap.xml, and /llms.txt hits, check status codes, verify identity when needed, and avoid counting bot hits as human traffic.
Use the free log analyzer
If you have a small nginx, Apache, Cloudflare, or JSONL access-log sample, paste it into the free analyzer below and copy a crawler proof report. The browser tool does not upload logs, but you should still redact IPs, customer IDs, auth tokens, cookies, and private query strings before sharing reports.
Bot detection log analyzer inside this guide
Paste a small redacted sample or load one of the demos. The report separates crawler clues from traffic proof, highlights discovery-file hits, and reminds you when identity verification needs official IP or reverse-DNS checks.
Copyable bot detection report
Inline crawler summary
Detected bot and crawler families
| Bot or crawler | Hits | Status mix | Important paths |
|---|
Analyzer recommendations
Proof levels
| Level | Evidence | How much to trust it | What to do next |
|---|---|---|---|
| Weak | User-agent string appears in a log line. | Useful clue, but spoofable. | Check status codes, paths, IP ranges, and repeat behavior. |
| Medium | Recognized crawler gets HTTP 200 on /robots.txt, /sitemap.xml, /llms.txt, and important pages. |
Good crawlability proof for a small site. | Compare before and after crawler-policy changes. |
| Strong | Logs plus official IP range or reverse-DNS verification, Search Console data, referral evidence, and tool activation events. | Best practical proof that a traffic funnel is working. | Summarize it in a dated launch report and keep monitoring weekly. |
What to count
- Hits to
/robots.txt,/sitemap.xml, and/llms.txt. - Hits to primary landing pages, guides, tools, and templates.
- User agents for Googlebot, OAI-SearchBot, GPTBot, Applebot, PerplexityBot, and CCBot.
- Status codes: 200, 301/302, 403, 404, 429, and 5xx.
- Referrers and UTM parameters for legitimate community distribution.
Simple log review table
Metric Why it matters /robots.txt hits Crawlers checked access policy /sitemap.xml hits Crawlers discovered canonical URLs /llms.txt hits AI-aware agents or humans checked context 200 status on core pages Public pages are reachable 403/404 on core pages Crawl or deployment problem UTM campaign visits Real distribution proof Generator/copy events Activation proof
Quick extraction commands
Use these locally on your own access logs. Redact sensitive values before sharing outputs.
# Find crawler-looking requests in an nginx or Apache combined log.
rg -i "Googlebot|OAI-SearchBot|GPTBot|Applebot|PerplexityBot|CCBot" access.log
# Count hits to discovery files.
rg "GET /(robots.txt|sitemap.xml|llms.txt)" access.log
# Look for crawler errors on important URLs.
rg -i "Googlebot|OAI-SearchBot|GPTBot|PerplexityBot|CCBot" access.log | rg " 4[0-9]{2} | 5[0-9]{2} "
# Summarize crawler hits by token when logs are small enough for shell review.
rg -io "Googlebot|OAI-SearchBot|GPTBot|Applebot|PerplexityBot|CCBot" access.log | sort | uniq -c | sort -nr
Bot verification notes
OpenAI crawlers
OpenAI publishes separate IP range files for OAI-SearchBot, GPTBot, and ChatGPT-User. Treat OAI-SearchBot and GPTBot as different proof categories.
OpenAI crawler docsPerplexity
Perplexity recommends combining user-agent and IP range checks when configuring WAF allow rules, then monitoring logs after changes.
Perplexity crawler docsrobots.txt limits
Google says robots.txt manages crawler access, but it is not a way to keep a page private or fully out of Google if other pages link to it.
Google robots.txt guideHow this site proves it
LLMs.txt Kit writes server-side access events and funnel events on the VPS preview. The public proof file summarizes traffic sources, crawler classifications, campaign visits, and activation events. That makes the funnel auditable before the final domain is live.
Current proof files:
7-day launch proof workflow
- Day 0: confirm DNS, HTTPS,
/robots.txt,/sitemap.xml,/llms.txt, and core pages return HTTP 200. - Day 0: submit sitemap in Search Console and IndexNow after the final domain is live.
- Day 1: review logs for Googlebot, OAI-SearchBot, GPTBot, Applebot, PerplexityBot, and CCBot.
- Day 2: check whether crawlers reach important guides, tools, templates, data pages, and proof files.
- Day 3: compare crawler events with UTM-coded community distribution visits.
- Day 5: import Search Console impressions and clicks if available.
- Day 7: publish a short proof report showing crawler reach, referral traffic, tool activations, and unresolved issues.
Privacy checklist before sharing logs
- Remove or hash visitor IP addresses unless you need them for internal verification.
- Remove cookies, auth headers, session IDs, email addresses, and customer IDs.
- Trim query strings that might contain tokens, search terms, or private customer data.
- Aggregate counts when public proof does not need raw line-level evidence.
What not to count as success
- Self-refreshes that inflate pageviews.
- Automated search or click loops.
- Bot hits that never reach a useful page.
- Spam comments that create no real user engagement.
Sources
- Google request verification guide
- Google robots.txt limitations
- OpenAI crawler documentation
- Perplexity crawler documentation
- LLMs.txt Kit log analyzer
- AI crawler policy benchmark
Next best click from this observed Search Console page.
This page is already being tested by Google for related queries. These bridge links point searchers to the exact tool or proof route that satisfies the query, without fake clicks or doorway pages.
log analysis for bot detection
This page already earns impressions for this intent. The bridge sends readers to the focused tool or proof route instead of creating a duplicate doorway page.