AzureAI-SearchBot
Microsoft's Azure AI search indexer
About this crawler
AzureAI-SearchBot is a web crawler identified by the regular-expression pattern AzureAI-SearchBot in the User-Agent request header. It is categorised as ai-fetcher. Use the regex above to detect, log, allow, or block AzureAI-SearchBot traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.26%
Technical details
- Name
- AzureAI-SearchBot
- Pattern
AzureAI-SearchBot- Tags
- ai-fetcher
- Reference
- https://azure.microsoft.com/en-us/products/ai-services
- Added
- 2026/04/26
- rDNS suffixes
.azure.com,.azurewebsites.net,.microsoft.com- Instances
- 1 known sample(s)
rDNS verification (FCrDNS)
Verify a request is genuinely AzureAI-SearchBot with forward-confirmed reverse DNS: the client IP's PTR record must end in one of the suffixes below and a forward A/AAAA lookup of that hostname must return the same IP. UA strings alone are spoofable; FCrDNS is not.
.azure.com.azurewebsites.net.microsoft.com
Sample User-Agent strings
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; AzureAI-SearchBot/1.0;
Block this crawler
robots.txt — disallow AzureAI-SearchBot:
User-agent: AzureAI-SearchBot
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} AzureAI-SearchBot [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "AzureAI-SearchBot") {
return 403;
}
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