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Bot IP: 173.252.79.113

facebookexternalhit is the user agent for Facebook's web crawler, used to fetch and preview content when links are shared on Facebook platforms.
Likely legitimate
Track-A-Bot Trust Score: 81/100
0255075100
Why Track-A-Bot rated this IP (tap to expand)

Identity

  • ✅ Marked as bot traffic
  • ✅ Bot name present
  • ✅ User-agent matches bot name
  • ✅ User-agent includes identity link/email

Hostname

  • ✅ Hostname observed
  • ℹ️ Hostname does not resemble bot name
  • ℹ️ Hostname status not verified
  • ✅ No hostname mismatch flags

Behavior

  • ℹ️ No /robots.txt request observed
  • ✅ No referrer (typical crawler behavior)
  • ⚠️ Many non-200/304 responses
  • 📌 Visits: 36
  • ⏱️ Age: 4700h

Penalties

  • ✅ No major spoof pattern
  • ✅ No fingerprint fields
  • ✅ Cookies not enabled
  • ✅ No connection type
Total visits: 103 First seen: Apr 19th, 2024 10:29 PM Last seen: Dec 12th, 2025 7:23 PM
Known Hostname(s)
fwdproxy-vll-113.fbsv.net
Known User Agent(s)
facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)
meta-externalagent/1.1 (+https://developers.facebook.com/docs/sharing/webmasters/crawler)
Known Accepted Encoding(s)
deflate, gzip

Common User-Agent Tokens

These are identifiers found inside user-agent strings we observed for facebookexternalhit.

Token
Seen
First seen
Last seen
facebookexternalhit/1.1
34,305
3/16/24
12/12/25
facebookexternalhit/1.1 34,305 seen
First 3/16/24
Last 12/12/25
10_11_1
2,004
6/8/24
12/12/25
10_11_1 2,004 seen
First 6/8/24
Last 12/12/25
facebot
2,004
6/8/24
12/12/25
facebot 2,004 seen
First 6/8/24
Last 12/12/25
twitterbot/1.0
2,004
6/8/24
12/12/25
twitterbot/1.0 2,004 seen
First 6/8/24
Last 12/12/25
acebookexternalhit/1.0
1
12/12/25
12/12/25
acebookexternalhit/1.0 1 seen
First 12/12/25
Last 12/12/25

Identity Links

These are URLs we observed in association with facebookexternalhit (often used as an identity, help, or policy link).

URL
Seen
First seen
Last seen
www.facebook.com/externalhit_uatext.php 32,295 seen www.facebook.com
First 3/16/24
Last 12/12/25
2
12/12/25
12/12/25
faviconkit.com/robots 2 seen faviconkit.com
First 12/12/25
Last 12/12/25
First 5/14/24
Last 12/12/25

Bot FAQ for this IP


Why is meta-externalagent visiting my website?

The meta-externalagent bot is visiting websites to retrieve and analyze web page content, typically for social media sharing and preview purposes. According to the user agent string and documentation link, this bot is associated with Meta (Facebook) and is used when users share links on Facebook or related platforms. The bot fetches page metadata, such as titles, descriptions, and images, to generate link previews. Recent access logs show repeated requests to specific URLs, which is consistent with automated metadata collection. If your site is being visited by this bot, it is likely because a link to your content was shared on a Meta platform.

What does meta-externalagent do?

meta-externalagent is a web crawler operated by Meta (Facebook) that scans web pages to extract metadata for link previews. When a URL is shared on Facebook or related services, this bot visits the page to collect Open Graph tags and other relevant information to display a preview in the social media feed. The bot identifies itself with the user agent 'meta-externalagent/1.1' and typically connects from hostnames ending in 'fbsv.net', as seen in the recent logs. This activity is generally limited to fetching public content and does not interact with site functionality beyond reading page data.

Is meta-externalagent safe?

Based on the user agent, reverse DNS ('fwdproxy-vll-113.fbsv.net'), and typical request patterns, meta-externalagent appears to be a legitimate crawler from Meta (Facebook). Such bots are generally safe and are designed to access only publicly available information for link previews. However, as with any automated traffic, it is advisable to monitor request frequency and patterns. To verify legitimacy, check reverse DNS records for the IP, review the user agent string, and consult Meta’s official documentation. If needed, manage access via robots.txt, allow/block lists, or rate limiting. For sensitive sites, consider additional monitoring or WAF rules.

This page provides a detailed lookup for the bot with the IP address of 173.252.79.113, based on real-world traffic observed across websites using Track-A-Bot software. Use this information to verify whether activity from this IP belongs to a legitimate search engine crawler, or to analyze bot behavior on your website.