---
title: "What is meta-webindexer? Meta's Bot Explained | Kitbase"
description: "Meta crawler used to improve Meta AI search result quality. How to identify and verify it, and what its traffic means for your site."
canonical: https://kitbase.dev/bot-directory/meta-webindexer
---

[Home](/) [Bot Directory](/bot-directory) meta-webindexer

# meta-webindexer

by Meta

AI indexing AI UA + IP range

Builds the index an AI assistant searches when it needs to find and cite a source.

Meta crawler used to improve Meta AI search result quality.

## What it usually means

Meta is indexing this page so it can surface in Meta AI search answers.

## How to identify it

User-Agent tokens

`meta-webindexer`

robots.txt stanza

`User-agent: meta-webindexer`

Free tools

[Verify a meta-webindexer request](/tools/bot-verifier?ua=meta-webindexer) [Check if your site allows meta-webindexer](/tools/ai-crawler-access-checker)

## How it's verified

Published IP-range endpoints

-   [https://stat.ripe.net/data/announced-prefixes/data.json?resource=AS32934](https://stat.ripe.net/data/announced-prefixes/data.json?resource=AS32934)

Currently loaded ranges (sample) Refreshed Sep 4, 2026

`163.77.136.0/23``2a03:2880:f37a::/48``185.60.217.0/24``157.240.14.0/24``2a03:2880:f366::/48``2a03:2880:f085::/48``57.145.6.0/23``57.145.16.0/23``57.141.4.0/24``57.144.186.0/23`

1 IP source configured

[Meta's page for meta-webindexer](https://developers.facebook.com/docs/sharing/webmasters/web-crawlers/)

## Sources

-   [Meta crawler docs](https://developers.facebook.com/docs/sharing/webmasters/web-crawlers/)

## More from Meta

[

meta-externalfetcher

Meta fetcher used when a person requests or shares a specific URL.

](/bot-directory/meta-externalfetcher)[

facebookexternalhit

facebookexternalhit is an AI-related crawler operated by Meta.

](/bot-directory/facebookexternalhit)[

meta-externalagent

Meta crawler collecting public content to train its AI models and improve Meta products.

](/bot-directory/meta-externalagent)[

meta-externalads

meta-externalads is an AI-related crawler operated by Meta.

](/bot-directory/meta-externalads)[

FacebookBot

FacebookBot is an AI-related crawler operated by Meta.

](/bot-directory/facebookbot)

## Similar bots

[

Claude-SearchBot

Anthropic

Anthropic crawler that discovers and refreshes content for Claude search.

](/bot-directory/claude-searchbot)[

Kimi-SearchBot

Moonshot AI

Moonshot AI crawler that builds the index behind Kimi's web answers.

](/bot-directory/kimi-searchbot)[

MistralAI-Index

Mistral

Mistral crawler that builds the index behind Le Chat's web answers.

](/bot-directory/mistralai-index)[

OAI-SearchBot

OpenAI

OpenAI crawler that builds the search index behind ChatGPT's web results.

](/bot-directory/oai-searchbot)

## See if meta-webindexer has visited your site

Kitbase verifies and tracks bot and AI crawler traffic separately from human visitors, so you know exactly who's hitting your site.

[Start Free Trial](https://app.kitbase.dev/signup)