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Can AI see it

Know what AI sees. Measure what it's worth.

What is Meta-WebIndexer?

Direct Answer: Meta-WebIndexer is a social media web crawler operated by Meta for search indexing and web content discovery.

Operator: Meta Type: Social Media Bot Purpose: Search indexing and web content discovery

The Meta-WebIndexer is a web crawler developed by Meta, designed to index web content for social media purposes. It is identified by user agents 'meta-webindexer/1.1 (+https://developers.facebook.com/docs/sharing/webmasters/crawler)' and 'meta-webindexer/1.1'. The bot's behavior and technical details indicate it is used for search indexing and web content discovery.

User-Agent Identification

The following user-agent strings identify Meta-WebIndexer in your live traffic data:

  • meta-webindexer/1.1 (+https://developers.facebook.com/docs/sharing/webmasters/crawler)
  • meta-webindexer/1.1

robots.txt Rules for Meta-WebIndexer

Respects robots.txt: No

This bot does not commit to following robots.txt

Meta-WebIndexer does not officially follow robots.txt directives. The only reliable way to control access is through server-side blocking (IP filtering, user-agent rules in your web server config) combined with log monitoring to verify effectiveness.

Need continuous verification across 500+ bots? Can AI See It automates this.

Crawl Behavior

Frequency:Not Documented

Request Pattern:Not Documented

Crawl Activity Index

Relative crawl activity for Meta-WebIndexer over the past 28 days. Higher values indicate increased crawling intensity compared to the period baseline.

View recent activity data (last 7 days)
Date Activity Index
Mar 26, 2026 88.0
Mar 27, 2026 82.7
Mar 28, 2026 83.1
Mar 29, 2026 81.8
Mar 30, 2026 87.3
Mar 31, 2026 90.2
Apr 1, 2026 88.9

Source: Cloudflare Radar

Why track Meta-WebIndexer traffic?

Ensure your link previews render correctly. Meta-WebIndexer fetches your pages to generate link preview cards on Meta. If it can't access your meta tags, your shared links display broken or generic previews.

Monitor social sharing activity. Meta-WebIndexer requests correlate with how often your URLs are being shared on Meta, even before engagement metrics are available.

Log Verification

To verify Meta-WebIndexer traffic in your live traffic data:

  1. Search access logs for the user-agent strings listed above
  2. Check if the IP addresses match documented ranges (if provided by Meta)
  3. Verify the crawl pattern matches documented behavior
  4. Use reverse DNS lookup for additional verification if available

Note: Observed behavior in production environments may differ from official documentation. Live traffic monitoring provides the only reliable verification of actual bot behavior.

Undocumented Information

The following information is not officially documented for Meta-WebIndexer:

  • crawl frequency
  • request pattern
  • IP verification
  • JavaScript rendering

Verify your link previews work — and track social bot access

  • Confirm Meta-WebIndexer can access your Open Graph meta tags
  • Track which URLs are being shared on Meta
  • Detect failed fetches causing broken preview cards
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Official Documentation

View Official Meta-WebIndexer Documentation →

Information sourced from official documentation. Content generated with AI assistance.